午夜福利总站-午夜国产-午夜国产爆乳-午夜国产传媒-午夜国产大片-午夜国产福利片-午夜国产福利在线-午夜国产精品福利-午夜国产精品视频-午夜国产理伦

ponto quente

'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

yfnb

13 Oct 2025(atualizado 13/10/2025 às 00h01)

'Its strength is its simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadc

Temas

Compartilhe

‘Vale Tudo’ tem 50 capítulos para evitar ser novela das 9 com 2a pior audiência da história.txt'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

'Its strength is mega sena 2171 resultado de hoje resultadoits simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadcasting CorporationRegisterSign InHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveHomeNewsIsrael-Gaza WarWar in UkraineUS & CanadaUKUK PoliticsEnglandN. IrelandN. Ireland PoliticsScotlandScotland PoliticsWalesWales PoliticsAfricaAsiaChinaIndiaAustraliaEuropeLatin AmericaMiddle EastIn PicturesBBC InDepthBBC VerifySportBusinessExecutive LoungeTechnology of BusinessFuture of BusinessInnovationTechnologyScience & HealthArtificial IntelligenceAI v the MindCultureFilm & TVMusicArt & DesignStyleBooksEntertainment NewsArtsArts in MotionTravelDestinationsAfricaAntarcticaAsiaAustralia and PacificCaribbean & BermudaCentral AmericaEuropeMiddle EastNorth AmericaSouth AmericaWorld’s TableCulture & ExperiencesAdventuresThe SpeciaListTo the Ends of The Earth EarthNatural WondersWeather & ScienceClimate SolutionsSustainable BusinessGreen LivingAudioPodcast CategoriesRadioAudio FAQsVideoLiveLive NewsLive SportHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherNewsletters'Its strength is its simplicity': The benefits of cleaning with vinegar24 April 2025ShareSaveKatarina ZimmerShareSaveGetty Images(Credit: Getty Images)Katarina Zimmer put vinegar to the test as a cleaning product and discovered a wide range of benefits, for people and the planet.A few months ago in my new Berlin apartment, my toilet and I were at war. No amount of scrubbing or toilet cleaner would evict the limescale coating inside. Frustrated, I turned to Google and stumbled across a page recommending vinegar – something that the previous inhabitant had left behind in abundance. After dropping two tablespoons full of "Essigessenz" – essentially concentrated vinegar – into the toilet and waiting for half an hour, I scrubbed and the limescale came off in a moment. Since then, I've enthusiastically used vinegar to rid my world of limescale. I've found it even more effective than my regular kitchen spray cleaner for getting my sink sparkling. That includes the faucet, which I wrapped in a vinegar-soaked kitchen tissue – whereas my regular cleaning spray dribbled off. And rather than having to buy special tablets to clean my limescale-smothered glass kettle, I simply poured two tablespoons of concentrated vinegar inside and boiled it. As the limescale crackled off, it made a satisfying sizzling sound.I wondered if vinegar had other advantages. Did it also kill off bacteria and other germs? And, importantly, was this simple, natural product better for the environment and for my health than regular cleaning products? The internet is full of sustainability influencers and green cleaning blogs that advertise vinegar as a jack-of-all-trades and a safer and "greener" alternative to "toxic" cleaning products. These claims make sense on the surface; vinegar is after all just fermented alcohol and has long been used as a food preservative, in salad dressings, as well as a household cleaner – but I wanted evidence. After interviewing three experts, I learned that while some of these claims are true, the benefits of vinegar depend a lot on how it's used and the kind of grime you're trying to get rid of.Getty ImagesLimescale dissolves more easily in acidic fluids like vinegar (Credit: Getty Images)Reassuringly, Eric Beckman, a chemical engineer and emeritus professor at the University of Pittsburgh in Pennsylvania, told me that the best cleaning use for acetic acid – the main component of vinegar – is exactly what I had been using it for: as a descaler. Limescale – and rust, for that matter – consists of certain ions that dissolve more easily in acidic fluids like vinegar, he says. Beckman uses vinegar himself to get limescale off mirrors, while the microbiologist Dirk Bockmühl of Germany's Rhine-Waal University of Applied Sciences prefers using lemon juice, which contains citric acid, which he says is a more effective descaler and smells better. (Read more about why vinegar is such an effective cleaner.)That said, vinegar doesn't work on everything. Beckman says that soap does a better job at removing oily films on dishes, while baking soda is effective against processed oils that have stuck onto surfaces while cooking. (Read more about whether baking soda is environmentally friendly).However, Beckman expresses exasperation about a popular remedy of mixing vinegar together with baking soda. The mixture is chemically quite useless, he says, as the acid of vinegar and the base of baking soda effectively cancel each other out. "I use both, but not together," says Beckman. "Together, they give you nothing."   And while vinegar is often touted as a powerful antimicrobial, Bockmühl says, the truth is more nuanced. In a 2020 study, Bockmühl and his colleagues put vinegar to the test against a selection of disease-causing bacteria, viruses and fungi. While many internet recommendations suggest adding a dash of vinegar into a bucket of water for cleaning, Bockmühl found that its anti-microbial effects only kick in at an acetic acid concentration of 5% – its concentration in pure vinegar. And it was only fully effective at distilled concentrations of 10%  – to which the researchers added a dash of citric acid – in killing off five common bacteria, including Escherichia coli and Staphylococcus aureus, as well as a mould, a yeast and a weakened strain of the vaccinia virus. Other studies have found that similar concentrations also work against Sars-CoV-2, the virus that causes Covid-19.  But even these concentrations didn't work against the MRSA bacterium, an especially stubborn strain of Staphylococcus aureus that's resistant to certain antibiotics, while countless bacteria remain untested. Many bacteria – including the ones that ferment alcohol into vinegar – thrive in acids, Beckman adds: "Then they'll be like, 'ooh, yay, vinegar.'" Some moulds, too, are resistant to acetic acid while some viruses – like norovirus – might be, too, Bockmühl suspects. Beckman says that soaps are more effective against bacteria, while standard disinfectants work better against viruses and moulds. Harsh treatments like bleach will definitely kill everything, Beckman says – although bleach can be unsafe if used incorrectly.Getty ImagesVinegar is less effective against processed oils that have stuck onto surfaces during cooking (Credit: Getty Images)Bockmühl stresses that, even for the germs that vinegar does kill, a relatively high concentration is needed. The concentration won't be adequate "if you just put a teaspoon of vinegar into your cleaning solution", Bockmühl says. However, the higher the dose of acetic acid, the more irritating it can be on the skin, he adds. It is harmful if it gets into your eyes. Surfaces can suffer, too: vinegar corrodes natural stone and metals like copper, bronze and brass, according to the Italian chemist Dario Bressanini's book The Science of Cleaning. And in dishwashers or washing machines, it can harm the rubber gaskets used to seal them, while it could also damage coffee machines and strip away the coating on tiles and grout, Bressanini writes. But Bockmühl assures me that it's fine to use vinegar on glass and ceramic surfaces – like my toilet – and stainless steel sinks.The trouble that Bockmühl sees with using homemade cleaning products is that they don't come with instructions or safety recommendations. "They might be safe if you know what you're doing," he says, "but there are a lot of really stupid and absurd recommendations on the internet".More like this:? Are you cleaning your water bottle enough?? Why you might want to change your bedclothes more often? Seven proven ways to help the planet in 2025 To learn more about how the health risks of vinegar compare with those of conventional cleaners, I called up Nicola Carslaw, professor of indoor air chemistry at the University of York in the UK. Her concern is how cleaners disrupt the air in our homes and buildings. It's known that professional domestic cleaners tend to have higher rates of asthma than other occupational groups, although it's proven difficult to pin that on any single product or ingredient.In a recent study, Carslaw and her colleagues tested 23 different cleaning products including dishwasher fluid, washing up liquid and spray products, and found that many of them released volatile chemical compounds (VOCs). Some of these compounds, like terpenes, are often added to give pleasant aromas, such as lavender or pine oil, but they're highly reactive in the atmosphere. Terpenes for instance, easily react with ozone in the air, creating miniscule particles. In general, inhaling particles of this size has been linked to lung and heart disease."Your nose is a really good filter for the big particles, but the smaller ones can get all the way into your lungs [and] into the bloodstream," Carslaw says. Interestingly, in her study she found that cleaning products marketed as "natural" or "green" didn't seem any healthier in this regard. "The natural/green ones had as many, if not more VOCs as the standard cleaners, and in many cases they were more reactive," she says.Vinegar passes muster on any sustainability scale because it's simple and it's degradable – Eric BeckmanBut vinegar, by contrast, only consists of water and acetic acid (and a few other substances that make the difference between red and wine vinegar, for instance). As such, "it's just not going to be chemically reactive in the same way", Carslaw says. Another advantage of vinegar is that it's usually applied on a cloth to wipe surfaces rather than used as a spray, Carslaw adds. Research shows that cleaning products applied in spray form have more harmful effects on the respiratory system than liquids and wipes. (Read more about the health risks associated with cleaning products in Jessica Bradley's story). "When you spray something, you're turning the chemical into a form that's much easier to breathe [in] than if you have the liquid," Carslaw says. That said, she always advises gloves when there's risk of skin contact, good ventilation and avoiding excessive cleaning, whatever product is used. (Read more about whether we're cleaning too much for our own good).Getty ImagesVinegar quickly breaks down and therefore its environmental impact is low (Credit: Getty Images)This all left me with one remaining question: is using vinegar more environmentally friendly than conventional cleaners? That's a hard question to answer, says Beckman. Ideally, there would be life cycle analyses for cleaning products which track impacts from cradle to grave, tracing each ingredient back to its source, how it's produced, transported, packaged and eventually disposed of. But very few companies do that thoroughly, even if they do brand their products as "green", Beckman says. "But I will say this about vinegar. [Its] strength is its simplicity," Beckman says. Conventional cleaners can consist of more than a dozen different ingredients, many of them industrially manufactured in energy-consuming processes, he says. Acetic acid is born through the natural, yeast-driven fermentation of alcohol, which itself comes from the natural fermentation of sugar. The biggest environmental impact of vinegar-making is where the sugar came from – whether it's grapes, apples, grains, potatoes, or rice – which are largely renewable resources. Bockmühl cautions that this only applies to naturally fermented vinegars, the ones typically sold as food products; there are also synthetic vinegars which are derived from fossil fuels, meaning they come with all the environmentally harmful impacts of oil and gas extraction.  Even at the very end of its life, vinegar has little impact. While many ingredients in soaps are tough molecules and don't easily biodegrade, sometimes continuing to kill organisms once they're in the environment, vinegar quickly breaks down, Beckman says. "Vinegar passes muster on any sustainability scale because it's simple and it's degradable," he says. After discovering all of this, I felt even better about using vinegar. I probably won't rely on it for ridding my surfaces of germs, but I'll keep using it to remove limescale and look forward to trying it out on the next rusty item I find. I'm happy to put up with the smell, knowing that I'm using a sustainable product that's likely better for my health. --For essential climate news and hopeful developments to your inbox, sign up to the Future Earth newsletter, while The Essential List delivers a handpicked selection of features and insights twice a week.For more science, technology, environment and health stories from the BBC, follow us on Facebook, X and Instagram.EarthSustainability on a ShoestringHygieneHealthSustainabilityEnvironmentClimateScienceFeaturesWatchExplaining how a touchscreen works with a sausageBritish mathematician Hannah Fry digs into the science of touchscreens.4 Aug 2025ScienceSeven images that transformed our world viewWatch how the maps and images of our planet from above have changed over the last two millennia.30 Apr 2025EarthTen striking images of an Earth scarred by humansFrom a shipwrecking yard in Bangladesh to a river of iron dioxide in Canada, a deep dive in Ed Burtynsky's work.16 Apr 2025EarthWhat's inside a black hole?Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.9 Apr 2025ScienceUsing bubbles to remove forever chemicals from our waterBBC Click visits a UK research team working on a solution to remove toxic chemicals known as PFAS from water.27 Mar 2025ScienceHow sex with Neanderthals changed us foreverWe find out what we gained when Homo sapiens mated with Homo neanderthalensis many thousands of years ago.18 Mar 2025ScienceTheory of Evolution: How did Charles Darwin come up with it?The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.12 Feb 2025ScienceRaja the elephant asking for a road tollIn Sri Lanka, a charming elephant cheekily halts traffic for treats. 29 Jan 2025EarthInside the hidden world of rhino romanceWatch two rhinoceroses involved in a game of 'kiss and chase'.24 Jan 2025EarthThe power of hugs for reducing inflammation in the bodyDr. Lisa Dahlgren discusses the effect human touch has on our health and wellbeing.22 Jan 2025HealthA mother tiger on a fierce hunt to feed her cubsWhile her three offspring take a leisurely bath, this Bengal tiger mother must find food for the entire family.16 Jan 2025EarthHow foxes outsmart world's heaviest raptor in quest for foodWatch red foxes challenge the Steller's sea eagle, the world's heaviest raptor, as they search for food in Japan.8 Jan 2025EarthHomo juluensis: Possible 'new ancient human' identifiedResearchers may have identified a new human species that lived around 300,000 years ago in Asia.6 Jan 2025ScienceMum saves baby seal with a clever trickWatch as David Attenborough reveals the unique behaviour of a mother seal to protect her pup in icy waters.31 Dec 2024EarthHow Arctic communities protect themselves from avalanchesBBC Click finds out how local communities in Svalbard use technology to combat avalanches and heavy snowfall.31 Dec 2024ScienceMountain goats: A death-defying battle to mateWatch the world's largest species of goat fight for the right to mate, teetering on the edge of perilous drops.17 Dec 2024EarthThe near miraculous escape of a cave swiftThe Tam Nam Lod Cave is home to over a quarter of a million swifts. But there are hidden dangers.12 Dec 2024EarthMeet the mudskipper: The remarkable fish that lives on landThe mudskipper is a fish that can leap with a flick of its tail. Watch a particularly agile specimen in action.3 Dec 2024EarthWatch the dramatic escape of tiny fish from deadly sharksThe Moorish idol, a dramatic little fish with dazzling stripes, adopts a clever strategy to save its life.27 Nov 2024EarthEarth tides: Why our planet's crust has tides tooHow do they differ from the ocean? A geophysicist breaks it down for us.28 Sep 2024Weather & scienceMore from the BBC3 hrs agoFarmer, 37, dies after missing out on new treatment Robin Elcock was unable to access new treatment for brain tumours as he did not have the necessary tissue.3 hrs ago4 hrs agoDementia suits show how tricky daily tasks can beThe simulation suits are helping health staff understand the frustration patients face every day.4 hrs ago4 hrs agoBlood cancer treatments come on 'leaps and bounds'A Wiltshire woman, who is now in remission, says new treatments are also much gentler on the body. 4 hrs ago8 hrs agoPostcode lottery for new cancer treatments, doctors warnExperts say bureaucracy is "stifling innovation" and that applying for funding to pay for new treatments can be "cumbersome".8 hrs ago8 hrs agoDr Xand: Stress is normal. Here's how to manage it betterStress, in small doses, can be good for us. Here are five simple, science-backed ways to manage it better. 8 hrs agoBritish Broadcasting CorporationHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherBBC ShopBritBoxBBC in other languagesFollow BBC on:Terms of UseAbout the BBCPrivacy PolicyCookiesAccessibility HelpContact the BBCAdvertise with usDo not share or sell my infoBBC.com Help & FAQsContent IndexCopyright 2025 BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. 

NEWSLETTER GRATUITA

Nexo | Hoje

'It's rather different from selling an ordinary book' How Lady Chatterley's Lover was banned – and became a bestseller.txt

Zepbound pode ser mais eficaz em mulheres.txt conhecimento e os enciclopédia foco.

GRáFICOS

nos eixos

'Remarkable' set of comics to go under the hammer in Lichfield.txt

Zelensky pede que aliados europeus aumentem press?o sobre a Rússia após ataque Mundo Valor Econ?mico.txt abrangente e os explorar moda.

Navegue por temas

é fundamental que ESG nunca seja uma sigla vazia, diz diretora de reda??o do Valor Executivo de Valor Valor Econ?mico.txt índices europeus avan?am com aten??es voltadas para voto de confian?a na Fran?a.txt Yago Dora é vice-campe?o em Jeffreys Bay e assume a lideran?a da WSL.txt Yaris, A4, Jimny Sierra, Stepway e mais: os carros que já saíram de linha em 2025.txt Your lungs hold secrets about your health as you age – here's a simple test to check them.txt ‘Briquete verde’ irá reduzir emiss?es na siderurgia Transformando o amanh?. Juntos. Valor Econ?mico.txt You_look_fabulous_Reporter_compliments_Zelensky_on_his_suit.txt água-viva rara e gigantesca surpreende no litoral do Brasil.txt ‘Meta de financiamento de US$ 300 bilh?es é um ponto de partida’, diz Emma Cox Conferências do clima Valor Econ?mico.txt ‘Se eu continuasse ali, viraria estatística’: como sobrevivente de violência doméstica quebrou ciclo e hoje ajuda outras mulheres.txt
真人作爱视频免费网站 | 久久久这里只有免费精品2018 | 丰满人妻熟妇乱又伦精品劲 | 国产精品扒开腿做爽爽爽视频 | 国产精品自在在线午夜蜜芽tv在线 | 日本 影院 | 日韩高清一区二区 | 免费人成在线观看网站品爱网 | 日产亚洲一区二区三区 | 永久免费看黄A片无码软件 永久免费毛片 | 嫩草院一区二区乱码 | 97色伦图片97综合影院 | 2021久久精品99精品久久 | 国产成人鲁鲁免费视频a | 成人国产色情无码永久免费软件 | 性色AV久久一区二区 | 最近免费观看高清韩国日本电影 | 一区二区三区不卡在线观看 | 黑人狂躁日本妞无码A片 | 男人午夜小视频 | 曰批全过程免费视频在线观看网站 | 国产AV人人妻人人爽 | 亚洲高清在线不卡中文字幕网 | 神马电影dy888午夜我不卡 | 日韩欧美高清一区 | 美女性生活片 | AV亚洲精品少妇毛片无码 | 伦理电影院 | 两个女人互添下身爽舒服小说 | 精品一卡2卡三卡4卡三卡免费 | 日韩三| 日本精品巨爆乳无码大乳巨 | 国产熟妇的荡欲午夜视频 | 免费视频国产 | 最近中文字幕高清中文字幕1 | 国产精品高潮AV久久无码 | 久久无码潮喷A片无码高潮动漫 | 韩国三级日本三级 | 曰本女人一级毛片看一级毛 | 久久尹人 | 色版网站 | 亚洲视频在线一区二区三区 | 免费一级做a爰片久久毛片潮 | 国产看色免费 | 国产亚洲精品久久久久久白晶晶 | 公交车被多男摁住灌浓精芽子 | 久久欧美人人做人人爱 | 欧美激情一区二区三区中文字幕 | 操一操干一干 | 日本网站在线播放 | 天堂中文资源在线观看 | 三级黄色片在线观看 | 欧美三级真做在线观看 | 91在线 | 亚洲 | 亚洲日韩在线a视频在线观看 | 日本高清com| 久久国产精品无码视欧美 | 老湿机费x一分钟影院体验区 | 免费看999永久A片视频 | 国产资源在线看 | 狠狠色丁香久久综合五月 | 99re在线这里只有精品 | 久久99久久精品国产99热 | 最近高清中文字幕无吗免费看 | 中文字幕乱码免费视频 | 无码精品日本一区二区桃花岛 | 欧美3p精品三区 | 日本10000部拍拍拍免费视频 | 91制片厂制作果冻大象传媒 | 国产日韩欧美综合一区二区三区 | 日韩精品中文字幕视频一区 | 日韩视频在线观看中字 | 同涩限制分级第1页 | 亚洲自拍另类 | 国产欧美激情一区二区三区 | 99久久综合狠狠综合久久 | 性感美女视频免费网站午夜 | 日本成年一区久久综合 | 亚洲图片偷拍图自拍97 | 久久黄色影片 | 日本一卡精品视频免费 | 修理工厨房侵犯人妻系列国产 | 亚洲欧美偷拍视频一区 | 久久久国产精品免费A片蜜臀 | 欧美人与动牲交免费观看视频 | 无套内谢少妇毛片A片免费视频 | 久久国产免费观看精品 | 在线不卡日本v二区 w006.top | 最好免费观看高清视频直播小说 | 日韩做A爰片久久毛片A片毛茸茸 | 精品国产乱码久久久久APP下载 | 免费无码又爽又刺激A片小说 | 婷婷电影网 | 久久观看 | 波多野结衣torrent | 91青青青青青爽在线 | 免费特黄一区二区三区视频一 | 男人J放进女人P全黄网站 | 新版天堂中文资源8在线 | 免费三级网 | 成年人网站免费 | 老司机免费午夜精品视频 | 亚洲精品久久无码AV片银杏 | 成人免费在线视频 | 亚洲精品久久区二区三区蜜桃臀 | 中文字幕 制服 亚洲 另类 | 精品久久久久不卡无毒 | 精品久久久中文字幕二区 | 亚洲 欧美 校园 春色 小说 | 欧美成人A片免费无码毛片 欧美成人大色情大片破碎的拥抱 | 宝贝把内衣脱了我想吃胸 | 最近完整中文字幕1 | 在线观看国产日韩 | 午夜影院费试看黄 | 男女野外做爰全过程69影院 | 欧美伦无码电影大开眼戒 | 黄色在线观看国产 | 特级做A爰片久久毛片A片国 | 91女神视频| 噼里啪啦影院大全 | 国产精品一区二区在线观看 | 国产精品久久综合桃花网 | 樱花草视频WWW | 老司机精品99在线播放 | 天堂tv亚洲tv日本tv不卡 | BT天堂网在线WWW中文 | 日本亚洲欧洲另类图片 | 国产剧情福利AV一区二区 | 久青草免费在线视频 | 亚洲第一AAAAA片 | 9久热精品免费观看视频 | 中国黄色一级毛片 | 三级 网站| 超级H荡的辣文小说 | 欧洲三级视频 | 边做边爱免费完整版视频播放 | 日韩亚洲精品无码一区二区 | 色情无码视频7788 | 国产高清精品软件丝瓜软件 | 无码欧美69精品久久久久 | 国产91久久精品一区二区 | 女主播直播大尺度视频获刑 | 午夜大片免费完整在线看 | 2022国产精品手机在线观看 | 一个人观看的免费视频 | 国产精品AV色欲蜜臀在线 | 亚洲精品无码成人A片蜜臀 亚洲精品无码AV久久久久久小说 | 亚洲日本激情 | 熟女人妻精品一区二区三 | 一卡二卡3卡4卡免费 | 亚洲区色情区激情区小说公 | 窝窝影院午夜看片毛片 | 亚洲色欲色欲77777小说 | 色拍拍欧美视频在线看 | 免费无码AV色情在线 | 欧美极品一区 | 午夜成人A片精品视频免费观看 | 中文乱码字幕无线观看2024 | 99国产在线播放 | 亚洲一区二区三区色情爆乳 | 日本免费一区二区在线观看 | 国产啪精品视频网免费 | 久久AV无码乱码A片无码蜜桃 | 色婷婷社区 | 免费在线观看一区 | 亚洲高清在线观看视频 | 国产xx肥老妇视频奂费 | 波多野结衣全集线观看456 | 欧亚乱熟女一区二区在线 | 中文字幕第一页在线播放 | 无码人妻精品一区二区三区A片 | 伦理三级电影在线观看 | 亚洲综合AV久久国产精品凡士林 | 欧美成亚洲 | 五月欧美激激激综合网色播 | 最新中文乱码字字幕在线 | 男人猛躁进女人的毛片A片 男人猛躁进女人的毛片A片小说 | 玩弄丰满少妇XXXXX性多毛 | 久久99精品久久久久久三级 | 回铭之烽火三月动漫免费播放 | 久久精品国产免费播放 | 免费的毛片视频 | 欧美妇乱xxxxx视频 | 龙之心4:心火之战 | 91精品国产91久久综合 | 久久亚洲精品AV无码四区 | 欧美日韩在线观看区一二 | 九一果冻传媒制片入口 | 婷婷日日夜夜 | 久久国产成人 | 美女脱裤衩扒开尿口给男子摸 | 国产精品自产拍在线观看中文 | 又粗又大内射免费视频小说 | 日韩欧美一区二区不卡 | 日韩欧美一区二区三区在线 | 国产精品一区二区免费 | 国内精品伊人久久久久妇 | 国产a级特黄的片子视频免费 | 久久婷婷五月综合色 | 天天天天夜夜夜夜爱爱爱爱 | 极品福利视频 | 韩国精品欧美一区二区三区 | 全黄H全肉禁乱公 | 麻豆 一区 精品 在线 | 国精产品W灬源码A片伊在线 | 97碰在线视频 | 日日夜夜精品免费视频 | 亚洲精品无码一区二区色戒 | 黄色三级视频 | 看黄子片wwwabc300 | 爱色.com | 亚洲第一区二区快射影院 | 国产精品黄在线观看免费软件 | 国产精品久久久久久久免费大片 | 国产一区二区精品视频 | 日本福利网址 | 亚洲乱码日产精品BD在线下载 | 精品一卡二卡三卡四卡视频区 | 亚洲精品无码成人A片在线漫画 | 大片成人版 | 国产精品午夜自在在线精品 | 国产美女视频免费观看的网站 | 中文字幕日本无码电影 | 成人自偷拍一区二区 | 在线看免费完整欧美电影网站 | 99国产精品久久久久久久久久久 | 中文字幕亚洲自拍 | 日本精高清区一 | 亚洲国产精品成人综合久久久 | 国产乱码一卡二卡3卡4卡网站 | 一级无毛 | 五月天六月色 | 777爽死你无码一区二区 | 男女后式激烈GIF动态图 | 老妇FREE性VIDEOSXX | 国产精品黄在线观看免费软件 | 色翁荡熄又大又硬又粗又视频图片 | 亚洲v日本v欧美v综合v | 久久精品99| 被cao哭高H调教1v1H | 又大又紧18P少妇在线观看 | 欧洲每年百万吨电子垃圾流向亚非 | 最近中文字幕视频国语中文字幕 | 日本在线观看网站 | 91精品一区二区三区在线观看 | 欧美操操操 | 黄污视频网站 | 色125综合| 国产女高清在线看免费观看 | 女人被添全过程A片试看V | 国精产品888 | 影视AV久久久噜噜噜噜噜三级 | 欧美小伙与老太做爰视频 | 午夜副利电影手机高清在线直播app下载 | 亚洲熟女乱色综合亚洲小说 | 国产内射在线激情一区 | 放荡闺蜜高干H | 日本一区二区三区在线看 | 毛片黄色片 | 欧美精品hdvdeosex4k | 亚洲日韩国产精品乱-久 | 少妇大叫太大太粗太爽了A片在线 | 男人舔女人的阴部黄色骚虎视频 | 免费网站在线观看国产v片 免费网站色 | 亚洲欧洲日韩国产一区二区三区 | kdbacc app网站 | 久久AV亚洲精品一区无码网 | 免费的青榴视频在线观看 | 亚洲精品国产精品乱码不卡 | 眉间雪电视剧全集在线观看 | 国产美女无遮挡裸体毛片A片 | 国产欧美日韩不卡一区二区三区 | 日韩啊v | 久久精品国产72精品亚洲 | 91精品天美精东蜜桃传媒免费 | 美女视频永久黄网站免费观看 | 久久丁香视频 | 单亲真实乱子伦免费视频 | 免费看污黄网站 | 久久久久久久久久久久久久久久久久久久 | 久久熟| 最新资源资源影音先锋 | 国产小视频在线高清播放 | 欧美中文字幕在线看 | 家庭教师波多野结衣在线观看 | 欧美69xxxx| 视频一区 中文字幕 | 天堂网av2018| 操亚洲美女 | 娇妻在舞厅被别人进入 | 91资源在线 | 性一交一乱一交A片久久 | 美女乱子伦高潮 | 日韩最新视频一区二区三 | 99国产亚洲精品久久久久久 | 69久久国产精品热88人妻 | 在线国产a不卡 | 久久免费看少妇高潮A片JA | 2018最新午夜在线视频 | 国产人妻人伦精品无码.麻豆 | 久久久久久国产a免费观看黄色大片 | 国产精品成人A片在线果冻 国产精品大尺度尺度视频 国产精品对白交换视频 | 日韩免费精品视频 | 日产一一到六区麻豆 | 岛国色情A片无码视频免费看 | 黄a免费| 亚洲一区自拍高清亚洲精品 | 久久婷五月综合色啪网 | 国产精品高潮呻吟AV久久小说 | 综合成人| 久久成人国产 | 国产成人一区二区三中文 | 青青视频观看免费99 | 精品国产九九 | 浪荡受bl高肉 | 国产女人成人精品视频 | 中文字幕第1页 | 成 人 网 站毛片 | 少妇与大狼拘作爱性A片 | 亚洲人成人无码.WWW石榴 | 成人AV无码一二二区视频免费看 | 国产三级电影网 | 国产精品久久久久久久A片冻果 | 桃子视频在线高清免费观看 | 免费黄色网址在线播放 | 蝌蚪网站免费观看 | 不卡免费在线视频 | 精品久久综合1区2区3区激情 | 菠萝蜜国际一区麻豆 | 人禽无码做爰在线观看视频 | 四库影院884TT永久地址 | 精品久久久久久久久久 | 日韩精品一区二区三区免费视频 | 草莓视频福利院 | 色丁香色婷婷 | 韩国日本不卡高清免费视频 | 成人片在线播放 | 日本一区免费看 | 爱久久AV一区二区三区色欲 | 亚洲一区精品中文字幕 | 在线看a片 | 亚洲色综合狠狠综合区 | 色呦呦| 免费无码精品黄AV电影 | 亚洲精品国产SUV | 国产人妻精品一区二区三区不卡 | 亚洲一区二区免费视频 | 狠狠色丁香婷婷综合视频 | 日本爽爽爽爽爽爽免费视频 | 久久久久一 | 师尊被掐着腰做到潮喷纯肉GB | 真人性做爰无遮A片免费 | 久久五月丁香激情综合 | 日本精品巨爆乳无码大乳巨 | 国产亚洲精品福利 | 国产精品亚洲精品久久国语 | 精品国产午夜福利在线观看 | 欧美成人免费sss | 激情偷乱人成视频在线观看 | 国产日韩最新系 | 国产电影一区二区三区爱妃记 | 人人澡人人澡人人澡 | 国产精品视频第一区二区三区 | 乌龙院1国语免费完整版 | 久久人妻熟女中文字幕AV蜜芽 | 骚宝宝把我夹射好不好?年上 | 五月天婷婷免费观看视频在线 | 伊人成人在线 | 午夜精品成人毛片 | 中文字幕日韩精品一区口 | 天天综合网网欲色 | 午夜男女爽爽羞羞影院在线观看 | 五月天在线网站 | 91视频爱爱| 五月天福利视频 | 久久久91精品国产一区二区 | 国产精品久久永久免费 | 天堂视频免费 | 97蜜桃网小说 | 久久澡 | 亚洲欧美国产成人综合不卡 | 五月激情综合 | 日本xxxxx18护士xxx | 最好免费观看韩国+日本 | www日韩免费高清视频 | 男男野战爆了我的菊BL | 97在线观看视频 | 日本高清www视频在线观看 | 成人窝窝午夜看片 | 色老头老太xxxxbbbb | 在线看播放免费网站 | 成人亚洲国产综合精品91 | 孙静雅1051p 44分钟 | 久久大香伊蕉在人线国产昨爱 | 四虎影视永久免费观看 | 欧美日韩一区二区三区四区在线观看 | 免费又黄又爽1000禁片 | 亚洲精品久久一区二区三区2024 | 荡女小姿的yin乱生活 | 久久久久国产精品免费网站 | 宅男色影视亚洲人在线 | aaaaa国产毛片 | 国产熟睡乱子伦视频在线播放 | 亚洲午夜无码毛片AV久久京东热 | 特黄把女人弄爽的A片 | HEYZO高清中文字幕在线 | 99久久99久久| 男女边摸边吃奶边做爰动漫 | 日产免费线路一二区 | 中文字幕精品一区 | 久久免费视频3 | 天天摸夜夜操 | 精品国产网 | 亚洲精品久久久久久偷窥 | 一级做a爰片久久毛片16 | 99国产精品久久人妻无码 | 国产免费一级精品视频 | 成人午夜A片产无码免费视频日本 | 国精产品一二二线网站 | 受在寝室被多攻高H男男小说 | 自偷自拍亚洲欧美清纯唯美 | 婷婷射丁香 | 性欧美另类| 黄色a∨| 2024亚洲 欧美 国产 日韩 | 色视频在线免费 | 丁香狠狠色婷婷久久综合 | 亚洲色欲色欲在线大片 | 91精品免费不卡在线观看 | 三级网站在线 | 欧美日本一道道一区二区三 | 国产精品国产三级国产AV剧情 | 亚欧有色在线观看免费版高清 | 亚洲无吗在线视频 | 宅女午夜福利免费视频 | 中文乱码在线中文字幕中文乱码 | 自拍视频在线观看亚洲福利 | 国产ts人妖视频 | 露脸一二三区国语对白 | 成人片毛片AAA片免费 | 男人都懂www深夜免费网站 | 久久综合给合久久狠狠狠97色69 | 最近中文字幕高清免费大全1 | 青青草免费手机在线视频亚洲视频 | 韩国男人的天堂 | 99久久精品国产一区二区小说 | 动漫性| 高清在线免费观看完整版电影大全 | 亚洲精品久久无码午夜一区二区 | 性久久久久久久久波多野结衣 | 老太奶性BBWBBW在线观看 | 久久精品成人免费看 | 欧美极品brazzers 高清 | 伊人大蕉综合网站亚洲最大 | 小荡货好紧好爽奶头好大视频网站 | 婷婷五月小说 | 女人自熨全过程(有声) | YELLOW片免费观看高清大全 | 最好免费观看高清视频直播小说 | 巨大黑人极品videos中国 | 天天撸天天射 | 三级欧美| 国产极品久久 | 精品人妻无码一区二区三区VOD | 请以你的名字呼唤我 电影 请以你的名字呼唤我 | 亚洲日本在线免费观看 | 成人全黄A片免费看 | 国产色婷婷亚洲99精品小说 | 日本一本免费线观看视频 | 日韩色区| 国产成人精品免费视频网页大全 | 日本熟妇乱妇熟色A片在线观看 | 97视频精品全国在线观看 | 免费欧美一级 | 李宗瑞性侵照片全集 | 特黄a大片免费视频 | 人妻仑乱A级毛片免费看 | 国产激情黄A片无遮挡 | 国产又色又爽无遮挡免费 | 中文字幕亚洲视频 | 99er久久 | 91福利国产在线观看一区二区 | 亚洲九九九 | 三A级做爰片免费观看国产电影 | 少妇人妻偷人精品视蜜桃 | 国产成人免费福利网站 | 久久神马影院 | 欧美特级视频 | 一区二区三区精密机械公司 | SM女人捆绑调教网站A片软件 | 在线丝袜视频 | 操美女视频在线观看 | 五月天婷婷综合 | 日韩精品无码一区二区三区 | 成年人网站在线免费观看 | 校花岔开玉腿欲液横流 | 国产又黄又爽又色的免费 | 精品国产国产精2020久久日 | 亚洲人成小说网站色 | 一个人免费完整在线观看日本 | 亚洲午夜精品A片久久WWW慈禧 | 亚洲中文久久精品AV无码 | 中文在线免费不卡视频 | 九热在线 | 高强度辣爽文 全是肉NP | 午夜AV精品一区二区三区 | 欧美乱性| 99精品全国免费7观看视频 | 将军边走边挺进她H树林 | 伊人影院蕉久影院2 | 91免费国产在线观看 | 天天噜天天干 | 成人免费看黄网站yyy456 | 女人被添全过程A片免费视频 | 女bbwxxxx非洲黑人 | 婷婷五月俺去也人妻 | 人妻丰满精品一区二区A片 人妻换人妻AA视频 人妻激情综合久久久久蜜桃 | 免费日本视频 | 天天干天天插 | 国产九九九九九九九A片 | 一级毛片完整版免费播放一区 | 真钱牛牛 pt88.vip | 大尺度哺乳福利视频 | 国产精品久久久久久久久久久久久久 | 国产精品爱久久久久久久小说 | 亚洲图片欧美文学小说激情 | 国产福利2021最新在线观看 | 越南一级毛片免费 | 和寡妇在做爰 | 国产午夜精品久久理论片 | 成人福利在线 | 最近在线视频观看2018免费 | 欧美亚洲综合高清在线 | 中文乱码字幕视频观看网站免费 | 欧美啪啪| 亚洲区偷拍自拍29P 亚洲人成77777A片张津瑜 | 国产电影一区二区三区爱妃记 | 国产视频一区在线 | 亚洲第一成年网 | 欧美大码毛片在线播放 | 久久综合伊人77777麻豆 | 欧美乱熟人妻色情影视 | 日韩三级免费观看 | 免费网站在线观看人数在哪网站 | 国产精品免费视频能看 | 无码免费一区二区三区免费播放 | 在线免费观看亚洲视频 | 丰满女邻居做爰BD在线电影 | 久久国产区 | 91精品国产综合久久精品 | 日日天干夜夜狠狠爱 | 丰满人妻无码AV系列 | 国内精品久久久久尤物 | 国产国产精品人在线观看 | 特级做A爰片毛片免费看108 | 乱码精品一卡2卡二卡三 | 曰曰鲁夜夜免费播放视频 | 中文字幕一区二区三A片 | 中文天堂在线观看 | 久久久噜噜噜久久 | 国产3级在线 | 国产精品久久久久久免费 | 亚洲Av -宅男色影视 | 速看网韩国伦理片 | 国产精品视频九九九 | 亚洲免费三级 | 韩国三级日本三级美三级 | 伊人影院蕉久影院直播福利 | 国产精品99精品久久免费 | 性做爰A片免费看网站 | 黄网站在线播放 | 亚洲成人激情小说 | 99re热这里只有精品视频 | 午夜视频在线观看免费高清 | 色影音先锋av资源网 | 一本久道久综合久久鬼色 | 三级免费黄色片 | 最近中文字幕完整版视频1 最近中文字幕完整版视频 最近中文字幕视频国语中文字幕 | 亚洲制服丝袜在线观看 | 欧美精品高清在线观看 | 要看网 要看影院 | 麻豆文化传媒官方网站入口免费 | 2021久久99国产熟女人妻 | www.夜夜操 | 久久99这里只有精品国产 | www视频在线观看天堂 | 亚洲欧美日韩v中文在线 | A片扒开双腿进入做视频 | 天天干天天拍 | 性爱五月 | 久久精品熟女亚州AV麻豆 | 天天干夜夜拍 | 波多野一区 | 日韩三级在线免费观看 | 色综合久久久久久久久久久 | 免费观看日本视频 | 在线国产视频 | 男同免费视频大全69 | 欧美xxxx免费 | 91在线免费观看 | 国产在线激情视频 | 天天做天天爱天天大综合 | 国产亚洲精品久久综合阿香蕉 | 樱花草视频WWW日本韩国 | 久久国产露脸老熟女熟69 | 中国大陆一级毛片免费 | 777国产| 2020好看的中文乱码字幕 | 四虎影视最新2024在线观看 | 性欧美巨大hd | 亚洲专区视频 | 色欲av蜜臀av高清 | 激情销魂乳妇奶水小说 | 亚洲AV无码久久流水呻蜜桃久色 | 亚洲精品久久99久久一二三区 | 人善交videos欧美3 | 欧美 国产 日韩 另类 视频区 | 大伊人网 | 亚婷婷洲AV久久蜜臀无码 | 91成人啪国产啪永久地址 | 免费做爰试看120秒 免免费国产AAAAA片 | 波多野结衣全部系列在线观看 | 久久99久久99 | 久久久久久久99精品免费观看 | 成人午夜视频精品一区 | 无码精品日本一区二区桃花岛 | 日本一卡二卡三卡四卡无卡免 | 国产传媒精品1区2区3区 | 麻豆传播媒体2023最新网站 | 九九精品免费视频 | 日韩午夜精品 | 曰本道久久综合久久爱 | 在线国产中文字幕 | 日日鲁鲁鲁夜夜爽爽狠狠 | 国产不卡a | 久久性色AV亚洲电影无码 | 无码做爰全过程免费的床震 | 婷婷五月俺也去人妻 | 日本在线日本中文字幕日本在线视频播放 | 免费的一级片网站 | 日韩免费一级a毛片在线播放一级 | 黄a级网站在线观看 | 丰满年轻岳欲乱中文字幕电视 | 在线欧美日韩精品一区二区 | R男女牲交45分钟A片 | 2019偷偷狠狠的日日 | 天堂а√在线中文在线 | 欧美成亚洲 | 天天涩综合 | 久久AV无码乱码A片无码软件 | 免费观看又色又爽又黄的忠诚 | 亚洲AV国产爽歪歪无码 | 日本无码看片视频一区 | 韩日美无码精品无码 | 激情aa视频试看免费 | 欧美 亚洲 日韩 中文2024 | 久久一日本道色综合久久m 久久一日本道色综合久 | 久久se视频精品视频在线 | 欧美日韩一二 | 成年美女xx网站高清视频 | 国产日产欧产精品精品推荐在线 | 人人看人人干 | 国产精品日日做人人爱 | 少妇啪啪AV一区二区三区 | 粗大的内捧猛烈进出A片黄 粗大的内捧猛烈进出A片小说 | 久久久久夜色精品波多野结衣 | 小小水蜜桃视频高清在线观看1 | 夜夜操国产 | 少妇护士放荡激情嗯啊小说 | 请以你的名字呼唤我 电影 请以你的名字呼唤我 | 五月婷婷六月综合 | 夜夜骑天天干 | 亚洲色偷偷一区二区手机在线 | 国产免费久久爱久久啪 | 亚洲粉嫩美白在线 | 午夜影院视费x看 | 国产成人精品福利网站app | 中文版在线乱码在线看 | 色偷偷噜噜噜亚洲男人 | 性一交一乱一A片 | 无码人妻精品国产婷婷 | 久久人妻内射无码一区三区 | 欧美成人亚洲综合精品欧美激情 | 天天射天天干天天 | 亚洲成AV人片在线观看WV | 好吊日在线视频 | 男女久久久视频2019 | 国产福利在 线观看视频 | 成人H动漫AV无码无遮挡A片 | 国产一级黄色网 | 国产在线视频一区二区不卡 | 亚洲区视频在线观看 | 国产人妻久久久精品麻豆 | 古代级a毛片免费观看 | 嫩草影院地址一二三 | 国产精品资源在线观看 | 国精品日韩欧美一区二区三区 | 色在线视频免费观看视频 | 免费看成人A片无码视频网站 | 另类 校园 人妻 武侠 | 亚洲精品久久久久一区二区三区 | 秋霞成人午夜鲁丝一区二区三区 | 亚洲欧美综合日韩字幕v在线 | 欧美深夜福利网站在线观看 | 日本亚洲成人 | 国产免费无码又爽又刺激A片 | 国产免费1卡2卡 | 国产色精品久久人妻无码看片 | 国产又黄又粗又爽又色的视频软件 | 风雨送春归免费观看 | 四虎影视完整版免费观看 | 黄色特级一级片 | 色吊丝永久性观看网站 | 日产乱码一二三四五 | 色播四房间 | 日本不卡免费视频新二区 | 亚洲无吗在线视频 | 国产精品无码免费专区午夜小说 | 国产乱码精品一区二区三区久久 | 黄色网页在线播放 | 欧美激情精品久久久久久大尺度 | 五月天亚洲图片婷婷 | 2022国产男人亚洲欧美天堂 | 乱熟女高潮一区二区在线 | 高潮喷水无码AV亚洲 | 日韩亚洲欧洲在线rrrr片 | 国产乱码人妻一区二区三区四区 | 99九九精品视频 | 日韩免费一区 | 日日摸夜夜添夜夜添高潮免费A片 | 久久成年片色大黄全免费网站 | 男人狂躁女人A片免费网站 男人猛躁进女人的毛片A片 | 欧美网站黄| 国产成人黄色在线观看 | 91超级碰| 动漫在线观看片A免费观看 法国艳妇LARALATEXD | 欧美成人xxxx| 第一福利在线视频 | 97丨九色丨国产人妻熟女 | www久久精品 | 久久国产精品99国产精 | 国产成人mv免费视频 | 黑人两根一起强进30p | 很详细的肉肉床文片段 | 一级精品视频 | 亚洲黄色官网 | 精品久久久中文字幕二区 | 精品无人区乱码1区2区3区免费 | 久久国产视频网站 | 又色又爽的无遮挡免费网址 | 九色综合伊人久久富二代 | 国产婷婷综合在线视频中文 | 日本大片免a费观看视频 | 国产一级视频在线观看网站 | 66精品综合久久久久久久 | 在线看黄免费 | 伊人久久丁香色婷婷啪啪 | 日本三级2019在线观看免费 | 国产精品人妻一区二区三区四 | 国内自拍一区 | 悠悠资源 | 久久99精品久久久久久噜噜噜 | 日本一本二本三区免费免费高清 | 国产国拍亚洲精品av麻豆 | 亚洲精品国产综合99久久一区 | 鲁鲁夜夜 | 精品无人区麻豆乱码1区2区 | 亚洲 欧美 国产 综合网 | 中文字幕精品一区 | 日本中文在线播放 | 色重色 | 一区二区三区线日本 | AV性色AV久久无码AI换脸 | 日本欧美国产精品第一页久久 | 久久这里只有精品1 | 97smm| 综合色图| 日本VS中国VS亚洲看无码A | 国产乱对白刺激视频 | 中文字幕日本一区波多野不卡 | 精品欧美亚洲韩国日本久久 | 久久毛片免费看一区二区三区 | 日韩在线一区二区 | 日韩精品一区二区三区中文 | 久久精品久噜噜噜久久 | 欧美一级日本a级v片下载 | 国产91在 | 亚洲熟妇色自偷自拍另类 | 亚洲 另类 春色 小说 | 国产在线观看不卡免费高清 | 美女毛片儿 | bt天堂网www天堂 | 成人A片免费看男人社区 | 亚洲一区二区色情苍井空 | 国外欧美一区另类中文字幕 | 无码精品日本一区二区桃花岛 | 色.www | 91丝袜在线 | 欧美a极品极品欧美 |