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

lazer

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

dcgfnxw

12 Oct 2025(atualizado 12/10/2025 às 01h49)

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

Temas

Compartilhe

Por que a saúde óssea é uma aliada fundamental da longevidade ativa'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 jogos pan americanos 2019 transmiss?oits 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

'I always knew I'd go into boxing' Molly McCann Sport.txt

Maraísa chora e nega ter ignorado f?; vídeo moda e os abrangente explorar.

GRáFICOS

nos eixos

Yorkshire_Water_given_drought_permits_to_conserve_reservoir_water.txt

QUIZ: Você lembra de que novelas s?o esses personagens inesquecíveis? ponto quente e os ponto quente lazer.

Navegue por temas

Sopa malamba é prato típico de vilarejo centenário na Bahia; Anote a receita Dia do Seguro é comemorado em 14 de maio Maraísa chora e nega ter ignorado f?; vídeo O clássico ‘dois quartos’ lidera lan?amentos no Rio Avan?os na mobilidade urbana dependem de bons projetos e diálogo permanente Competi??es Senac devem atrair 4 mil pessoas por dia, no maior circuito educacional do País Veja como preparar o curry de jaca Respira??o consciente: conhe?a prática que pode favorecer a longevidade 70 anos de TV brasileira: relembre novelas que trataram de responsabilidade social Gusttavo Lima declara amor por público de Goiania antes de ser anunciado em show por Andressa Suita e filhos; vídeo
亚洲欧美视频 国内自拍 | 六月丁香综合在线视频 | 亚洲精品无码A片一区二区三区 | 91蝌蚪网| 亚洲AV一宅男色影视 | 新版天堂中文资源8在线 | 在线乱码一卡二卡麻豆 | 国产精品久久久久久久久kt | 九月丁香婷婷亚洲综合色 | ririai99在线视频观看 | 日韩免费视频在线观看 | 欧美黄色大片免费观看 | 美国毛片aa | 第四色播日韩AV第一页 | 国产亚洲国产bv网站在线 | 丁香婷婷影院 | 教官脔到她哭H粗话H好爽视频 | 成人在线精品视频 | 一本到12不卡视频在线dvd | 波多野结衣国产一区二区三区 | 国产69精品久久久久久人妻精品 | 只要不是我老公1975 | 最近韩国日本免费观看MV免费版 | 男男挤奶油进去PLAY高污 | 黄页网站 | 古装一级淫片a免费播放口 古装一级无遮当一级毛片 古装一级毛片手机免费看 古装一级毛片免费观看 | 最后一夜无删减版在线观看 | 波多野结衣中文字幕一区 | 在线黄色小视频 | 无码任你躁久久久久久久 | 日本视频a | 5月丁香婷婷 | 亚洲成a人v欧美综合天堂下载 | 国产精品夜夜春夜夜爽久久小 | 秋霞电院影无码 | 日韩精品中文乱码在线观看 | 拔擦拔擦8X永久华人免费播放器 | 国产国产精品人在线观看 | 日本哎哎哎视频免费1000 | 久久精品国产亚洲欧美 | 久久精品国产视频在热 | 国产精品系列在线观看 | 欧美午夜性 | 天天综合久久久网 | 麻豆传煤2021精品 | 麻豆国产一区二区三区四区 | 亚洲欧美网 | 亚洲一级毛片视频 | 国产精品 欧美在线 另类小说 | 芊芊的被校长脔日常H | 中文字乱码区2021 | 日本一区二区在免费 | 精品推荐 国产 | 欧美日本道免费二区三区 | 国产最新在线视频 | 午夜啪啪剧场 | 巨大黑人极品videos中国 | 六月婷婷在线观看 | 最近高清中文在线观看国语字幕7 | 精品亚洲欧美无人区乱码 | 国产亚洲精品久久久久久线投注 | 伊人久久五月丁婷婷 | 夜夜噜2024最新 | 午夜精品久视频在线观看 | 丝袜偷窥亚洲综合 | AV天堂午夜精品一区二区三区 | 国产免费一级视频 | 久久AV亚洲精品一区无码网 | 国产我不卡| 免费在线成人电影 | 早川瑞希 | 亚洲女bbwxxxx另类 | 成人影院线在线观看免费观看 | 校草被老师肉到失禁H | 国产xx肥老妇视频奂费 | 成人做爰WWW免费看视频韩国 | 日韩亚洲欧美中文高清 | 亚洲欧洲无码AV在线观看你懂的 | 美果tv免费在线观看电视剧 | 色六月婷婷 | 一区二区三区国产 | 欧美一性一交一伦一A片视频 | 色性综合 | 欲女春潮bd | 国产SUV精品一区二区88L | 激情五月婷婷色 | 亚洲精品偷拍的自拍的 | 日韩一卡二卡3卡四卡2021高清妈妈的朋友 | 纯肉小黄文高H | 久久国产人妻一区二区免费 | 最近免费字幕中文大全视频 | 高清不卡日本v在线二区 | 久久大香香蕉国产免费网站 | 97国产露脸精品国产麻豆 | 一个人免费看www视频 | 美国全免费特一级毛片 | 国产自产一c区 | 国产精品久久精品第一页不卡 | 国产一级不卡毛片 | 九一制片厂果冻传媒 | 色久久综合视频本道88 | 日韩黄色在线 | 国产爱v| 撑 趴 润滑 痛苦 求饶 BL | 中文字幕亚洲乱码熟女在线 | 又黄又大又猛的A片 | 在线看av的网站 | 美女扒开下面让男生桶白浆 | 亚洲图片欧美日韩 | 国产电影一曲二曲三曲图片 | 四房播播婷婷基地 | 免费在线黄网 | 久久不卡一区 | 亚洲黄色免费在线观看 | 久久草这在线观看免费 | YY视频大片免费看网站 | 久久久久久久99精品免费 | 波多野结衣在线中文 | 国偷自产AV一区二区三区健身房 | 国产人妻久久久精品麻豆 | 影视先锋av资源站男人 | 欧美极品videosvideohd| 美美哒免费高清影院在线观看直播 | 高h全肉纯肉 高质量 | 国产亚洲999精品AA片 | 午夜一区二区在线观看 | 精品亚洲一区二区在线播放 | 日韩xx00| 久久这里只精品99百度 | 麻豆国产96在线日韩麻豆 | 无码激情做A爰片毛片A片小说 | 青青草久热精品视频在线观看 | 韩国日本不卡高清免费视频 | 日韩欧美视频一区 | 国产麻豆亚洲精品一区二区 | 久久99精品天天中文字幕 | 国产精品久久久久久久久久妇女 | 欧美一区精品 | 顶级少妇倣爱A片XXX | 欧美极品jizzhd欧美4k | 欧美伦理片 | 国产成人精品午夜二三区 | 精品国产香蕉 | 美国一级免费毛片 | 日韩色情一区二区无码AV | 最爽快的乱肉小说合集500篇 | 五男一女NP慎入H小说 | 人妻熟女斩五十路0930 | 国产毛片网 | 毛茸茸的逼逼 | 午夜免费视频网站 | 学生妹av | 欧美xxxxhd | 国模沟沟一区二区三区 | av网址有哪些 | 亚洲国产中文字幕在线观看 | 亚洲综合精品香蕉久久网97 | 97人妻超在线观看免费 | 欧美视频在线观 | 丝瓜草莓秋葵污WWW旧版安卓 | 女人被弄到高潮叫床免 | 在线观看午夜亚洲一区 | 九九精品成人免费国产片 | 老湿影院视色情下 | 奇米四色奇米四色444影视盒 | 色多多成人性视频APP下载 | 男人的天堂中文字幕熟女人妻 | 国产黄色片在线看 | 亚洲凤凰av免费观看 | 免费的黄网 | 奶大灬好大灬好硬灬好爽在线播放 | 么公又大又硬又粗又长 | 性开放的欧美大片高清播放 | 国产品无码一区二区三区在线 | 亚洲精品久久久无码大桥未久 | 国产激情艳情在线看视频 | 天天射色综合 | 午夜视频hd | 快快用力深点好疼别舔 | 欧美激情综合色综合啪啪五月 | 免费黄在线观看 | 免费看高清片国产剧情 | 色情无码WWW视频无码区下载 | 伊人久久综合成人亚洲 | 午夜理论片日本中文在线 | 亚洲在成人网在线看 | 四虎无码永久在线影库网址一个人 | 婷婷久月 | 高清网站 | 99久久香蕉国产综合影院 | 无人区乱码一二三四 | 久青草国产手机视频免费观看 | 波多野结衣 美乳人妻 | 国产精品乱码高清在线观看 | 国产精品久久久久秋霞影视 | 二次元美女开腿污裸体 | 久久99精品免费视频 | 亚洲色噜噜狠狠站欲八 | 99精品久久久久久久 | 黄网站免费线观看免费 | 高清欧美性xxxx成熟 | 国产精品扒开腿做爽爽爽A片软件 | 亚洲一级大片 | 丰满少妇69激情啪啪无码 | 国产 欧美 亚洲 日韩视频 | 秋霞一区| 好吊妞无缓冲视频观看 | 老司机午夜精品视频观看 | 亚洲免费三级 | 男人猛躁进女人的毛片A片小说 | 国产一区二区在线播放 | 午夜你懂的| freefron性中国| GAY高潮痉挛哭叫失禁男小说 | 亚洲欧美一区二区成人片 | 激情视频亚洲 | 性色视频免费 | 果冻传媒 天美 麻豆 | 韩国在线无码中文字幕 | 免费一级国产大片 | 香港三级日本三级三级韩级2 | 欧美制服丝袜在线 | 国产精品免费视频一区二区三区 | 加勒比国产 | 性v天堂| 成人在线免费观看视频 | 久久天堂 | 亚洲图片欧美文学小说激情 | 十八种看黄禁用软件APP入口 | 2024天天拍拍天天爽视频 | 日本无码V视频一区二区 | 久久re视频这里精品一本到99 | 亚洲AV成人一区二区三区在线看 | 精品综合久久久久久97超人该 | 欧美成综合网网站 | 四虎影视出品必属精品 | 国产美女一级做视频爱 | 日韩黄色在线观看 | 男人j进女人j的图片 | 硬棒插的好深好湿 | tube jizz| A片好大好紧好爽视频 | 最新激情网站 | 黑人巨茎大战欧美白妇 | 国产AV人人妻人人爽 | 午夜免费视频 | 亚洲 欧美精品 | 性欧美视频在线观看 | 无码欧美熟妇人妻影院欧美潘金莲 | 亚洲最大视频网站 | 天天天天夜夜夜夜爱爱爱爱 | 淫行瑜伽室 | 国产毛片精品一区二区色欲 | 亚洲天堂网站在线 | 欧美视频在线观看 | 亚洲乱码中文字幕久久孕妇黑人 | 亚洲精品天堂在线观看 | 欧美国产中文在线字幕视频 | 伦理亚洲 | 97碰碰碰免费公开在线视频 | 黄页免费在线看 | 黄视频网站免费观看 | 国产又色又爽在线观看 | 一级一级毛片免费播放 | 久久久久久a亚洲欧洲aⅴ | 天天影视色香欲综合视频 | 久久六热| 我替清水文男主们开荤H | 亚洲乱码无人区卡1卡2卡3 | 把她日出水来太爽太紧了 | 免费一级毛片无毒不卡 | 九热视频 | www干| 亚洲色欲AV无码乱码国产精品 | 亚洲午夜精品A片久久WWW软件 | 欧美猛交| 色欲AV色情国产又爽又色 | 一级国产视频 | 久久久久久国产精品免费免费 | 亏亏插曲叫疼的免费的视频 | 亚洲免费色视频 | 91制片厂制作果冻传媒麻豆 | 亚洲综合在线视频自拍 | 亚洲乱码日产精品BD在线下载 | 久久综合九色综合桃花 | 国产午夜伦鲁鲁 | 中文国产成人精品久久下载 | 草草影院 国产 日本 | 丨九色丨国产人妻 | 91精品人成在线观看 | 97精品国产高清自在线看超 | 50-60岁老妇女一级毛片 | 五月色丁香婷婷网蜜臀AV | 100国产精品人妻无码 | 全部在线播放免费毛片 | 亚洲精品久久久久久久蜜桃 | 国产精品久久久久久久久久 | 欧美三页 | 总裁高H掹C纯肉小黄书 | 暗卫CAO烂王爷屁股眼H | 阳茎伸入女人阳道视频 | 亚洲国产精品久久久久久网站 | 日韩A片无码毛片免费看久久 | 91免费精品国自产拍在线不卡 | 亚洲 日韩 色 图网站 | 99久久999久久久综合精品涩 | 香港三级日本三级韩国三 | 成人免费精品网站在线观看影片 | 国产欧美熟妇另类久久久 | 天天色图片 | 午夜精品视频在线 | 大片成人版 | 又硬又粗进去好爽A片 | 日本韩国欧美在线观看 | 国产精品99r8免费视频2022 | 娇妻在客厅被朋友玩得呻吟漫画 | 99久久精品久久久久久清纯 | 四房播播在线电影 | 丰满少妇大力进入A片中文 丰满少妇内射一区 | 日韩精品无码久久一区二区三 | 国产精品久久久久国产A级 国产精品久久久AV久久久 | 蜜桃MV在线播放免费观看网站 | 成人色网站大全 | 国产精品一区二区三区免费 | 意大利军营医生1976 | 一个人在线看www视频 | 欧美极品xxx | 精品国产自在现线看久久 | 首页欧美日韩在线观看 | 在线观看免费情网站大全 | 久久影院精品 | 国产成人精品久久一区二区三区 | 菠萝蜜国际一区麻豆 | 99精品视频在线观看免费 | 国产又色又爽又黄的视频免费观看 | 日韩国产免费一区二区三区 | 2018天天干天天操 | 九九九九九 | 亚洲AVAV天堂AV在线网爱情 | 欧美 日本 亚欧在线观看 | 国产下药迷倒白嫩美女在线观看 | 国产亚洲精品AAAA片小说 | 2024夜夜干天天天爽 | 少妇特黄A片一区二区三区小说 | 珠帘玉幕电视剧免费观看 | 91色老久久精品偷偷蜜臀 | 国产亚洲天堂 | 亚洲电影a | 国产中文字幕在线免费观看 | 高树玛利亚qvod | 久久久久久电影 | 日本亚洲免费 | 欧美一卡2卡3卡4卡乱码 | 国产AV电影区二区三区曰曰骚网 | 91精品国产手机在线版 | 我要看免费一级毛片 | 精品一卡2卡三卡4卡三卡免费 | 天堂а√在线中文在线 | 亚州网 | 麻豆自制传媒 国产之光黄 麻豆在视频线 | 亚洲 欧洲 小说 自拍 | 久久久精品久久 | 精品亚洲国产成人A片在线播放 | 伊人在香蕉 | 91精品欧美综合在线观看 | 五月天婷婷视频在线观看 | 乱公和我做爽死我视频 | 亚洲精品无码成人A片在线漫画 | 久久久久久91香蕉国产 | 欧美在线观看视频一区 | v欧美精品v日本精品 | 大陆一级毛片 | 欧美色精品 | 91精品久久久久久久久久 | 亚洲日日做天天做日日谢 | 日韩一区二区超清视频 | 2019精品国产品在线18年网 | 久久国产 vs | 黄色爱爱视频 | 精品视频| 狼人 成人 综合 亚洲 | 国产乱码卡二卡三卡43 | 天堂资源在线www中文 | 蜜臀亚洲AV永久无码精品老司机 | 国内精品久久久久久久小说 | 亚洲精品无码成人A片九色播放 | v欧美精品v日本精品 | 高潮影院 | 日韩不卡一卡二卡3卡四卡2021免费 | 欧美hdjzz| 国产精品青青在线麻豆 | 国产精品_卡2卡三卡4卡 | 日本三级全大电影免费 | 国产三级电影网 | 97超碰免费人妻中文 | 91成人午夜在线精品 | 亚洲成av人影片在线观看 | 最近中文字幕完整国语 | 男女阳茎牲交32动态图片免费 | 麻豆一区二区三区蜜桃免费 | 在线视频你懂得 | 久久成人国产 | 国产精品久久久精品a级小说 | 嗯真紧又湿又软 | 色综合精品久久久久久久 | 亚洲一卡2卡3卡4卡乱码 在线 | 粉嫩被粗大进进出出视频 | 亚洲娇小性xxxx | 欧美呻吟 | 国产大片B站观看 | 亚洲字幕AV一区二区三区四区 | 国产亚洲精品在天天在线麻豆 | 麻豆自制传媒 国产之光黄 麻豆在视频线 | 伊人玖玖 | 亚洲AV无码成人一区二区三区 | 激情五月婷婷色 | 成人无码A片视频播放 | 亚洲国产精品久久久久久 | 99精品免费观看 | 波多野结衣办公室在线 | 夜夜操女人 | 久久久久久久久一次 | 丁香花在线观看免费观看 | 91尤物视频在线观看 | 天天插天天射天天操 | 免费欧美一级 | 99re视频在线 | 国产亚洲午夜精品a一区二区 | 99看视频 | 真实国内老女人的露脸视频 | 久热这里只有精品在线 | www精品一区二区三区四区 | 日本高清不卡中文字幕视频 | 国产极品尤物 | 精品剧情v国产在线麻豆 | 超级乱婬小说全集 | 久久久精品免费 | 亚洲国产天堂在线观看 | 欧美性色黄大片四虎影视 | 日本中文字幕高清 | 久久不卡一区 | 黄色不卡视频 | 色综合天天综合高清影视 | 污网站在线免费观看 | 色情无码鲁鲁A的电影 | 日本在线观看网站 | 亚洲精品国产综合AV在线观看 | 免费看污又色又爽又黄又脏小说 | 福利视频在线4 | 日本高清WWW无色夜在线视频 | 亚洲日本无码高清一区二区 | 娇妻在客厅被朋友玩得呻吟漫画 | 不卡人妻无码AV中文系列APP | 2022国产成人精彩在线视频 | 黄色免费看片网站 | 久久AV无码乱码A片无码 | 精品国产久线观看视频 | 国产成人91精品 | 婷婷久久久五月综合色 | 无码AV免费一区二区三区A片 | 亚洲日本va中文字幕久久 | 久久精品国产亚洲AV影院 | 高清乱码一区二区三区 | 灌满抽搐合不拢双性HBL | 国产人成精品香港三级古代 | 少妇被粗大的猛烈的进出69影院 | 他用舌头给我高潮喷水在线 | 欧美精品A片XXX | 在线免费观看毛片 | 3d 肉 蒲 团| 精品国产一区二区三区四区阿崩 | 69国产精品人妻无码免费 | 欧美日韩另类在线观看视频 | 88永久华人 | 免费看的黄网站 | 免费在线亚洲视频 | 欧美成人丝袜一区二区 | 曰批全过程免费视频在线观看草莓 | 天天插天天干天天操 | 动态图污动态 | 国产人妻人伦精品1国产盗摄 | 亚洲欧美国产旡码专区 | 黄色网战在线观看 | 宋徽宗是南宋还是北宋 | 热の综合热の国产热の潮在线 | 久久精品视频在线看15 | 亚洲A片无码一区二区蜜桃久久 | 婷婷爱五月 | 免费网站在线观看人数在哪里看的 | 久久新网址 | 成人午夜视频在线 | 最近免费的中文字幕一 | 国产高清管线免费视频 | 日本三级黄线在线播放 | 欧美高清日本三级人妇 | 中国少妇内射XXXHD | 风韵丰满熟妇啪啪区老熟熟女 | 李梦大尺度照被曝光 | 99热在线精品免费播放6 | 老司机精品视频午夜免费视频 | 日本午夜免费福利视频 | 欧美日韩一区二区不卡三区 | 国产精品AV色欲蜜臀在线 | 中国老妇另类xxxx | 亚洲精品久久麻豆蜜桃 | 99精品电影一区二区免费看 | 伊人婷婷涩六月丁香七月 | 亚洲AV久久无码精品九九九小说 | 日本娇小xxxxhd | 国语对白一区二区三区 | 青青草在视频线首页 | 污污在线网站 | 国产高清自偷自在线观看 | 欧美性受 | 久久久久久综合对白国产 | 奇米四色在线视频 | 桃色AV久久无码线观看 | 国内久经典AAAAA片 | 免费国产a国产片高清下载app | 日本a级精品一区二区三区 日本a级黄 | 99久久精品免费看国产 | 十九天漫画在线观看免费 | 在线萝福利莉18视频 | 日韩亚洲精品无码一区二区 | 国产又爽又黄无码无遮挡在线观看 | 久久青草国产手机看片福利盒子 | 色网在线 | 日本a免费观看 | 综合自拍亚洲综合图区 | 性xxxxbbbb免费播放视频 | 欧美日韩福利视频 | 色综合AV亚洲超碰少妇 | 亚洲电影天堂av2024 | 国产精品MP4 | 无套内射无矿码免费看黄 | 免费无码一区二区三区A片18 | 免费做A爰片久久毛片A片 | 第四色播日韩AV第一页 | 秋霞电影网理论片韩国在线观看 | 99亚洲男女激情在线观看 | 亚洲国产青草 | 精品国产久线观看视频 | 欧美日韩精品一区二区在线播放 | 又湿又深又爽的A片视频 | 99久久免费国产精精品 | 乱叫抽搐流白浆免费视频 | 少妇性BBB搡BBB爽爽爽小说 | 特级毛片 | 玖玖爱视频在线 | 欧美精品第二页 | 欧美日韩在线精品一区二区三区 | 蝌蚪91视频 | 日韩你懂的 | 韩国伦理片在线2018 | 成人免费永久在线观看视频 | 成人午夜A片产无码免费视频日本 | 少妇被粗大的猛烈进出A片久久久 | 高辣H文黄暴糙汉文H | 久久国产精品一国产精品金尊 | 高h全肉纯肉 高质量 | 激情视频亚洲 | 久久久无码精品一区二区三区 | 成人做爰高潮A片免费视频 成人做爰片免费网站 | 日本黄H兄妹H动漫一区二区三区 | 亚洲精品国偷拍自产在线观看蜜桃 | 熟女人妻私密按摩内射 | 中文不卡一卡二卡 | 肉乳床欢无码A片动漫无尽 肉乳乱无码A片观看免费 | 最近中文字幕完整视频下载 | 亚洲 欧美 国产 综合网 | 欧美性猛交XXXX乱大交3 | 波多野结衣在线影视 | 国产日产久久 | 亚洲精品高清国产一线久久97 | 久草在在线免在线观看视频 | 精品香蕉久久久爽爽韩国 | 美女视频永久黄网站免费观看 | 窝窝视频成人影院午夜在线 | 欧美成人精品第一区二区三区 | 久久婷婷五月综合色丁香 | 无码激情做A爰片毛片A片日本 | 苍井空快播 | 成人高清影院 | 午夜亚洲 | 国产精品色情国产三级小说 | 在线观看中文字幕 | 国产高清在线露脸一区 | 免费精品国产人妻国语麻豆 | 99re6国产精品免费播放 | 韩国三级视频网站 | 书房里的揉弄h | 被灌满了嗯不行NP | 久久影院午夜理论片无码 | 午夜影视在线视频观看免费 | 日本免费网站观看 | 中文字幕免费在线 | M男食い ラストオーダー | 秋霞网国产| 妺妺窝人体色WWW图片 | 精品免费A片一区二区久久 精品美女国产互换人妻 | 欧美金妇欧美乱妇视频 | 国产真人性做爰久久网站 | 91三级视频| 老师你下面好紧夹死了 | 种地吧2在线观看 | 久久草草亚洲蜜桃臀 | 性欧美黑人 | 国产日韩精品一区二区在线观看 | 把女人弄爽的特黄A大片 | 人善交videos欧美3 | 丝瓜草莓秋葵污WWW旧版安卓 | 国产日产亚洲系列首页 | 99热这里有精品 | 最近中文免费字幕在线播放 | 天堂资源中文在线 | 一级黄色片免费看 | 欧美色欧美亚洲另类二区 | 久久久久久久尹人综合网亚洲 | 亚洲第一页乱 | A片人人澡C片人人人妻付费 | 久久精品午夜视频 | 中文乱码字幕无线观看2024 | 最近高清中文在线观看国语字幕7 | 2k电影网| 久久久久久一级毛片免费野外 | 国产AV午夜精品一区二区入口 | 性一交一乱一优A片 | 亚洲一区综合在线播放 | 欧美又粗又深又猛又爽A片免费看 | 免费国产在线视频 | 高清欧美一级在线观看 | 欧美91av| 韩国视频一区 | 2024日本一道国产 | 久久精品久久精品久久 | 每日更新在线观看av | 亚洲a在线视频 | A片粗大的内捧猛烈进出在线 | 免费高清资源黄网站在线观看 | 艳情短篇辣文合 | 日韩 欧美 国产 师生 制服 | 天天躁日日躁狠狠躁中文字幕 | 亚州老熟女A片AV色欲小说 | 囯产目拍亚洲精品一区 | 曰本无码人妻丰满熟妇5G影院 | 国产精品久久久久久久久久直 | 99久热只有精品视频免费看 | 狠狠色狠狠色综合日日92 | 国产a级毛片 | 高清有码国产一区二区 | 在线观看成人网 | 奇米777四色影视在线播放 | 国产精品视频h | 五月色婷婷综合开心网 | 中文字幕AV久久激情亚洲精品 | 国内精品久久久久影院老司 | 欧美日韩一区二区三 | 日本小视频免费 | 亚洲无线一二三四区手机 | 久久6699精品国产人妻 | аⅴ资源天堂8在线 | 日韩一区二区三区四区区区 | 黄色软件草莓丝瓜秋葵安卓下载破解版大全 | 国精品人妻无码一区二区三区一 | 樱花草视频在线观看免费高清WWW | 国产精品视频你懂的 | 国产手机免费视频 | 韩日在线 | 日本无翼乌邪恶大全彩男男 | 亚洲精品欧洲精品 | 最近更新中文字幕2018全集免费 | 免费国产在线视频 | 欧洲一卡2卡三卡4卡网站国色天香 | 免费电影1000| 欧美影院入口 | 日韩日韩日韩日韩日韩 | 韩国三级日本三级香港三级 | 久久99精品久久久久久三级 | 国产美女视频一区二区二三区 | 国产高清片| 午夜无码伦费影视在线观看果冻 | 亚洲精品高清AV在线播放 | 亚洲国产日韩a精品乱码 | 人碰人碰人成人免费视频 | 日韩色情一区二区无码AV | 亚洲一卡二新区乱码绿踪林 | 国产又黄又大又色爽的A片小说 | 国语自产拍在线观看偷拍 | 色欧美亚洲 | 好硬啊进去太深了A片 | 波多野一区二区三区在线 | 亚洲国产中文字幕在线视频综合 | 老司机深夜福利在线观看 | 精品国产中文字幕在线视频 | 国产午睡沙发客厅25分钟 | 乱叫抽搐流白浆免费视频 | 亚洲AV综合AV国产AV百度云 | 久久久久久久97 | 国产AV精品一区二区三区小说 | 韩国美女激情视频一区二区 | 真实国产熟睡乱子伦视频 | 最近中文字幕完整免费视频 | 国产一区影视 | www.精品久久 | 久久国产热| 日本无码人妻精品一区二区蜜桃 | 波多野结衣在线免费播放 | 韩国中文全部三级伦在线观看中文 | 男人晚上适合偷偷看的污污 | 亚洲午夜精品A片久久WWW慈禧 | 无码AV在线观看一区二 | 五月婷婷丁香在线 | 性做爰添LBB在线视频 | 国产成都一二三四区 | 国产强伦姧人妻完整版 | 国产精品久久久久免费视频 | 91香蕉成人免费网站 | 插老师进去了好大好舒服小说 | 午夜伦理片 | 最新中文字幕在线资源 | 久久免费久久 | 97人人澡| 种地吧少年第一季 | 无遮挡很爽很污很黄的网站 | 国产成人综合五月久久网址 | 日韩精品1 | 一圾片在线观看 | 老太婆BBBBBB视频 | 在线看片亚洲 | 国产精品久久久久久久福利院 | 99这里只有是精品2 9I看片成人免费 | 久久精品AV一区二区无码 | 2024国产大片天天看 | 激情五月开心婷婷深爱 | 韩国三级日本三级香港三级黄 | 色爱区综合激情五月综合激情 | 欧洲免费看片尺码大 | 狠狠人妻久久久久久综合九色 | 草草影院在线播放 | 受快穿被肉来肉去NP男男 | 少妇被粗大的猛烈的进出69影院 | 88av视频 | 日韩视频大全 | 毛片黄| 热の综合热の国产热の潮在线 | 久久不卡一区 | 在线观看成人A片免费播放 在线观看免费的小电影网站 | 樱花树下未删减在线观看 | A片免费观看一区二区三区 A片粗大的内捧猛烈进出在线 | 夜夜爽202477妓女免费下载 | 免费看一级黄色 | 欧美疯狂做受xxxx | 快播av种子 | 视频国产激情 | 成年网站在线看 | 国产电影一区二区三区爱妃记 | 丁香花视频免费播放社区 | 久青草影院在线观看国产 | 亚洲AV成人精品日韩一区 | 成年18网站免费视频网站 | 色情www欧美影院 | 99久久国产露脸人妻精品 | 忘忧草.WYC.IA| 日本三级全黄 | 国产成人精品必看 | 国产极品JK白丝喷白浆在线观看 | 亚洲三级黄色片 | 免费做爰猛烈吃奶摸视频在线观看 | 欧美亚洲精品一区二三区8V | 天天操操操操操操 | 美女被c网站 | 福利国产视频 | 亚婷婷洲AV久久蜜臀无码 | a天堂v| 久99久热只有精品国产99 | 嗯啊HH禁忌翁公 | 欧美一级www片免费观看 | 国产免费A片好硬好爽好深漫画 | 中餐厅5季几号播出 | 国色天香精品一卡二卡三卡四卡 | 亚洲国产激情一区二区三区 | 日本免费一二三区中文 | 国产精品久久久天天影视香蕉 | 中文字幕在线最新在线不卡 | 久久久久久99精品 | 香蕉黄网| 深夜特黄a级毛片免费播放 深夜日韩 | 久久久久免费精品国产 | 狠狠色丁香婷婷久久综合五月 | 有码中文| 欧美日韩国产一区二区 | caoporn免费在线视频 | 欧美又黑又大AAA毛片 | 欧美另类久久久精品 | 视频一区二区三区欧美日韩 | 91青青青青青爽在线 | 久久涩精品 | 四虎最近网站是多少 | 亚洲AV国产成人精品区三上悠亚 |