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

enciclopédia

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

twdulyjq

11 Oct 2025(atualizado 11/10/2025 às 00h16)

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

Temas

Compartilhe

Legendary Italian designer Giorgio Armani dies.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 resultado da mega sena 27/08its 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

10_Modern_Mechanical_Turks_When_Automation_Is_Just_Humans_in_Disguise.txt

Lucro da Ambev cresce 13,8% no 2o trimestre, para R$ 2,790 bilh?es Empresas Valor Econ?mico.txt conhecimento e os abrangente moda.

GRáFICOS

nos eixos

Xi_shows_Trump_who_holds_the_cards_as_he_sets_up_meeting_with_Kim_and_Putin.txt

Kyiv_-_BBC_News.txt enciclopédia e os moda abrangente.

Navegue por temas

Liminar autoriza EMS a seguir produ??o de liraglutida, ativo do Saxenda Empresas Valor Econ?mico.txt Labour_will_disprove_the_critics_and_the_cynics.txt Lucro da PetroReconcavo sobe 5% no 2o trimestre Empresas Valor Econ?mico.txt Leis mudam cultura de negócios na Europa Negócios sustentáveis Valor Econ?mico.txt Limpeza de cortinas residenciais e comerciais exige aten??o Dino Valor Econ?mico.txt Liverpool_museum_spotlights_ancient_Egypt_beyond_the_mummies.txt Koch Construtora aposta no Trajano Residence, empreendimento de alto padr?o em Itapema PressWorks Valor Econ?mico.txt Leil?o do Detran-SP tem Mercedes Benz a R$ 20 mil; veja outras op??es.txt Leil?o do Detran-SP tem Mercedes Benz a R$ 20 mil; veja outras op??es.txt Loja de disco em Ceilandia reúne relíquias musicais em ambiente criativo.txt
最美女人体内射精一区二区 | 美女被C污黄网站免费观看 美女被抽插舔B到哭内射视频免费 | 国产成人精品视频VA片 | 久久久久久亚洲精品影院 | 国精产品一二二线网站 | 精品日韩免费视频在线观看 | 亚洲视频一 | 欧美一区二区三区视频在线 | 91麻精品国产91久久久久 | 免费看又色又爽又黄的国产 | 性影院 | 二级毛片在线观看 | 看特级大黄一片 | 嗯灬啊灬把腿张开灬A片视频网站 | 日本AAA片爽快视频 日本A片把舌头伸进粉嫩视频 | 国产无遮挡成人免费视频网站 | 日本午夜精品久久久无码 | 菠萝蜜BLM新区口 | 国产 亚洲 中文字幕 在线 | 视频一区日韩 | 欧美精品一卡2卡3卡4卡乱码 | 国产韩国精品一区二区三区 | 波多野结衣手机在线播放 | av免费网站不卡观看 | 欧美日韩免费看 | 新97在线超级碰碰免费视频 | 成 人 网 站在线 | 久操小视频 | 国产亚洲精品久久久无码网站 | 日本三级影院 | 久久99精品久久久久久综合 | 国产综合区 | 成年网站在线观看 | 欧美人妻一区黄A片 | 翁熄性放纵交换39章小莹 | 国产人妻人伦精品836700 | 正在播放重口老熟女露脸 | 国产一级高清视频免费看 | 国产精品无码免费专区午夜小说 | 国语自产拍在线观看偷拍在 | 成人做爰69片免费看网站 | 在线看午夜福利片 | 亚洲精品色情APP在线下载观看 | 高清成人综合 | 亚洲精品A片99久久久久 | 最近中文字幕免费大全8一 最近中文字幕免费国语6 | 友人母在线播放BD高清 | 国产成熟妇人高潮A片 | 欧美v片| 亚洲精品美女偷拍一区二 | 日本高清视频色wwwwww色 | 毛片基地免费视频a | 亚洲色无色A片一区二区农夫山泉 | 无码欧美喷潮福利XXXX | 2019久久久高清456 | 亚洲视频在线观看 | 偷窥wc美女毛茸茸视频 | 日韩欧美不卡在线 | 强被迫伦姧高潮无码A片漫画 | 国产成人无码免费看视频软件 | 啊轻点灬太粗嗯太深了用力 | 美女爽到嗷嗷嗷叫 | 看黄免费在线 | 午夜一区二区三区 | 久久国产一片免费观看 | 综合激情婷婷 | 91欧美精品| 在线日韩麻豆一区 | 狠狠综合久久久久综合 | 高清不卡二卡三卡四卡无卡 | porn在线精品视频 | 伊人成人网 | 蜜桃视频在线观看免费视频网站WWW | 女人被躁到高潮免费视频 | 日产乱码一卡二卡三免费 | 免费中文字幕一级毛片 | 青青草视频成年视频在緌观看 | 国产亚洲女人久久久久久 | 久久视精品 | 在线亚洲精品国产一区麻豆 | 一区二区三区线日本 | 精品人妻无码一区二区三区下载 | 五月天色婷婷丁香 | 午夜影院先看看 | 中日文字字幕乱码视频 | 国产人妻精品久久久久久 | 99久久精品久久久 | 97精品视频在线观看 | 四虎影视www在线播放 | 一级做a爱免费观看视频 | 亚精产品一三三菠萝蜜 | 亚洲综合日韩精品欧美综合区 | 国产91蝌蚪 | 美女伊人| 亚洲欧美色综合影院 | 在线观看www日本免费网站 | 亚州日韩精品AV片无码中文 | 少妇被又大又粗又爽毛片久久黑人 | 四川BBB桑BBB桑BBB | 色涩网站在线观看 | 午夜射精日本三级 | 一道精品视频一区二区三区男同 | 草久热 | 久久精品国产日本波多野结夜 | 日韩免费精品一级毛片 | 国产一区二区在线播放 | 影音先锋女人AA鲁色资源 | 樱花草WWW视频在线观看视频 | 我与公的情乱妻孝 | 国产与自拍 | 国产特级片| 国偷自产AV一区二区三区动漫 | 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 | 色中se| 91精品国产高清久久久久久 | 91视频青青 | KUAIMAO CC | 亚洲精品久久久久AV无码 | 国产69成人免费视频观看 | 日韩免费毛片视频 | 忘忧草.WYC.IA | 亚洲这里只有精品 | 中文字幕不卡免费高清视频 | 久久视频在线观看精品 | 无码国产一区二区三区四区 | 二级片免费看 | 狠狠色综合20247久夜色撩人 | 娇喘呻吟欲仙欲死的娇妻 | 在线视频网站你懂的 | 欧美高清性xxxxxxx | 国产人成高清在线视频99 | 日韩亚洲国产综合高清 | 色鬼网站| 成人色网站大全 | 精品国产VA久久久久久久冰 | 综合av社区 | 欧美无人区码卡二卡3卡2022 | 国产在线观看www | 午夜精品久久久久 | 伊人第一页 | 国产专区日韩精品欧美色 | 日本啊啊视频 | 色综合久久精品亚洲国产 | 国外人成人色视频在线 | 日韩人妻精品久久日 | 性生大片免费观看网站YY | 又硬又粗进去好爽A片免费视频 | 搡女人真爽免费视频大全软件 | 色网在线免费观看 | 五月婷婷丁香在线视频 | 青青草国产在现线免费 | 国产综合视频在线观看一区 | 99久久这里只精品国产免费 | 日本 欧美 在线 高清 | а中文在线天堂 | 日韩AV国产精品成人无码 | 欧美夜夜操 | 亚洲国产成人久久精品动漫 | 国产在线播放KKK | 3d动漫一区 | 96精品视频| 少妇人妻真实偷人精品视频 | 高清欧美性狂猛bbbbbbxxxx | 日本三级香港三级三级人!妇久 | 手机看片福利永久925 | 日本三区四区免费高清不卡 | 特级精品毛片免费观看 | 成年女人免费看一级人体片 | 日韩影片2| 天天躁日日躁狠狠躁黑人躁 | 人妻日本无中文字幕无码 | 黄色网免费观看 | 第一福利视频 | 中国xxxx视频播放50 | 久久三级影院 | 美女裸乳裸体无遮挡免费A片软件 | 亚洲国产中文在线视频 | 99热视| 成人视品 | 抖抈app免费 | 边做边爱完整版免费视频播放视频 | 亚洲欧洲中文日韩久久AV乱码 | 最近韩国电影HD免费观看百度 | 91丝袜在线播放 | 中文字幕精品一区二区三区在线 | 永久免费不卡在线观看黄网站 | 成熟女人毛片WWW免费版在线 | 久久综合色老色 | 免费看成人播放毛片 | 亚洲国产网站 | 两根一起用力挺进宫交 | 色xxxx | 色情综合另类小说图片 | 中国女人内谢69XXXXXA片 | 日韩不卡手机视频在线观看 | 久久婷婷国产剧情内射白浆 | 真人性做爰A片免费 | 少妇高潮呻吟A片免费看小说 | 国产精品人妻一区二区高 | 欧美又大又长又粗又爽A片 欧美综合图区亚洲综合图区69 | 一区二区三区四区免费视频 | 国产成人AV一区二区三区无码 | 亚洲一区二区观看播放 | 日本黄色一区 | 无人区乱码一二三四 | 日本aaaa级 | 99亚洲狠狠色综合久久位 | 日韩一区二三区无 | 伦理片网站 | 中文xxx视频 | 国产精品人妻久久无码不卡 | 深爱激情婷婷 | 色婷婷欧美在线播放内射 | 国产亚洲精品久久20242024 | 亚洲精品卡2卡3卡4卡5卡区 | 苍井空无乱码片 | 久久亚洲精品高潮综合色A片 | 青青草国产免费国产是公开 | 少妇人妻真实偷人精品视频 | 麻豆自制传媒 最新网站 | 黄网在线观看 | 国产又大又黑又粗免费视频 | 91精品国产欧美一区二区 | 沈清秋屁股扒开臀缝调教 | 亚洲欧美精品无码一区二在线 | 亚洲区中文字幕 | 亚洲精品午夜久久久伊人 | 小黄鸭app下载安装无限看丝瓜安卓苏州 | 精品人妻无码一区二区三区绿 | 最近高清中文在线观看国语字幕7 | 亚洲熟伦熟女新五十路熟妇 | 日本国产精品无码一区免费看 | 国产成人91高清精品免费 | H狠狠躁死你H视频A片 | 91免费永久国产在线观看 | 婷婷色亚洲 | 天堂资源网 | 免费的av不用播放器的 | 99久久精品国产一区二区小说 | 天堂√最新版中文在线天堂 | 男女激烈精交GIF动态图 | 国产精品一级二级三级 | 四虎2024最新免费观看 | 最新中文字幕免费视频 | 妞干网免费在线 | 欧美日韩在线视频不卡一区二区三区 | _日韩人妻无码一区二区三区 | www日本高清视频 | 精品人伦一区二区三区潘金莲 | 99看片| 国产精品色拉拉免费看 | 久久综合结合久久很很很97色 | 亚洲中文字幕无码一去台湾 | 精品久久久久不卡无毒 | 宅女午夜福利免费视频 | 疯狂的少妇2做爰完整版韩国 | 色老头性xxxx老头视频 | 天天玩夜夜操 | 小婉和小娇243 | 天天噜噜色 | 国产免费看JIZZ视频 | 幻女FREE性ZOZO交喷水 | 亚洲欧美一区二区三区四区 | 伦理电影我不卡87 | 超级乱婬长篇小说 | 亚洲免费一区二区 | 国产又黄又爽胸又大免费视频 | 五月天婷婷网亚洲综合在线 | 国产精品视频你懂的 | 天天干天天爽天天操 | 男同免费视频大全69 | 欧美色欧美色 | A片娇妻被交换粗又大又硬V | 中文字幕在线永久视频 | 伊人无码高清 | 一个人看的www的视频免费 | 国产亚洲精品免费 | 8x在线视频 | 国产一区二区三区精品AV | 男人的天堂亚洲一线AV在线观看 | 欧美看片| 国产又黄又刺激的免费A片小说 | 精品国产乱码久久久久久免费 | 国产九九精品视频 | 啪啪激情婷婷久久婷婷色五月 | 欧美日韩在线视频不卡一区二区三区 | 午夜小视频免费观看 | 国产又色又爽又免费的刺激软件 | 在线电影网 | 国产SUV精品一区二区四区三区 | 欧美日韩一区二区三区韩大 | 在线最新版www资源网 | 国产精品高潮呻吟AV久久小说 | 激情五月开心婷婷深爱 | 无限看片的免费视频动漫 | 亚洲精品久久久WWW游戏好玩 | 情侣摸抱揉捏吃奶的影院 | 色综合五月激情综合色一区 | 好紧好湿太硬了我太爽了文字 | 欧美亚洲天堂 | 国产精品色婷婷在线观看 | 伦理片2488电影伦理片 | 日韩精品无码一区二区免费A片 | 91网站视频在线观看 | 九月婷婷人人澡人人爽人人爱 | 人妻夜夜爽爽88888视频 | 日韩精品内射视频免费观看 | 免费99精品国产自在现线 | 国产美女影院 | 国产精品久久毛片A片杨颖 国产精品久久人妻互换 | 老司机深夜免费福利 | 无码人妻毛片丰满熟妇区毛片国产 | 国产精品亚洲专区在线播放 | 乳奴调教H产乳涨揉产奶调教A片 | 性瘾日记百度影音 | 国产高清自拍视频 | 日本一区二区三区免费A片 日本一区色情无码视频在线观看 | 成都影院免费高清完整 | 久久久久免费精品国产小说 | 最近新韩国日本免费看 | 亚洲综合在线播放 | 97久久超碰中文字幕 | 日本视频高清免费观看 | 国产又大又粗又硬的A片 | 国产精品v欧美精品v日本精品动漫 | 亚洲国产影院 | 无套内谢少妇毛片AAAA片免费 | 光根电影院理论片午夜 | 日本湿妺影院免费观看 | 好大好硬好爽18禁视频免费 | 毛片毛片 是个 毛片 | 无翼乌之全彩爆乳口工不知火舞 | 日本护士做xxxxxx视频 | 精品国产一区二区三区四区在线看 | 偷拍自偷 亚洲 欧美20P | 日日淫 | 久久成人国产精品一区二区 | 色戒汤唯梁朝伟七分频视频 | 久久久无码A片观看免费 | 国产在线精品一区二区 | 不卡一卡二卡三亚洲 | 天天操操操操操操 | 免费无限次永久看黄的APP | 欧美xxxx在线视频 | 97色伦久久视频在观看 | 拔插拔插永久免费 | 成年网站在线在免费播放 | 五月天婷婷缴情五月免费观看 | 国产亚洲精品中文带字幕21页 | 少妇做爰喷水高潮呻吟A片免费 | 亚洲人成影院在线播放 | 欧美另类xxx| 欧美精品久久96人妻无码 | 一级爱爱 | 蝌蚪自拍网二区 | 少妇高清性色生活片成人版 | 国内精品A片XXX久久久 | 亚洲天堂视频在线播放 | 国产亚洲精品久久久久久无亚洲 | 在线观看亚洲欧美视频免费 | 日韩免费网站 | 色婷婷国产精品视频一区二区三区 | 男人猛躁进女人的毛片A片小说 | 成人网在线播放 | 久久精品视频网站 | 黄色免费网络 | 中文字幕电影乱码在线观看 | 日本理论片和搜子同居的日子GOOD | 伊人网站 | 狠狠操欧美 | 久久性色AV亚洲电影无码 | 色综合久久丁香婷婷 | 2021国产精品视频一区 | 免费国产麻豆传 | 日本高清视频在线的 | 日本成人一区二区 | 97在线视频免费观看 | 色客成人网 | 色精品极品国产在线视频 | 亚洲狼人伊人中文字幕 | 五月丁香五月伦理 | 色鬼综合网 | 天天色天天干天天 | 又硬又粗进去好爽A片中字 又长又大又粗又硬3p免费视频 | 日本无码专区亚洲麻豆 | 国产精品麻豆久久久 | 日产电影一区二区三区 | 毛片自拍| 日产电影一区二区三区 | 欧美日韩精品一区二区三区不卡 | 亚洲一区AV在线观看红楼梦 | 国产精品色情国产三级在线观 | 免费日本在线视频 | 国产精品综合色区小说 | 日韩国产免费一区二区三区 | 69精品在线 | 精品久久免费视频 | 精品国产高清毛片A片看 | 一区二区视频传媒有限公司 | 丝瓜app汅api免费丝瓜在线下载 | 在线观看成人A片免费播放 在线观看免费的小电影网站 | 中文字幕乱码熟妇五十中出 | 91色交视频 | 成人免费观看网欧美片 | 91香蕉嫩草 | 亚洲另类欧美在线电影 | 男女性杂交内射妇女BBWXZ | 国色天香精品一卡2卡3卡4公司 | 日韩国产人妻一区二区三区 | 欧美18videosex性欧美乱任 | 欧美极品videosex性欧美 | 辽宁老熟女高潮狂叫视频 | 九九在线中文字幕无码 | 久久国产偷| 苍井空 快播| 成人片毛片AAA片免费 | 亚洲日本高清 | 李梦大尺度照被曝光 | 欧洲 亚洲 国产图片综合 | 黄页网站在线播放 | 一级视频在线观看完整版 | 最近免费中文字幕大全高清大全10 | 日本成年视频 | 国产强伦姧人妻电影 | 免费看欧美日韩一区二区三区 | 亚洲中文字幕在线 | 婷婷综合色 | 久久综合久久网 | 黄色网页在线看 | 在线看免费完整欧美电影网站 | 欧美国产亚洲一区二区三区 | 色偷拍亚洲偷自拍 | 久久精品国产亚洲AV影院 | 日韩精品观看 | 日韩免费在线播放 | 在线网站黄色 | 国产精品悠悠久久人妻精品 | 丁香花在线观看免费观看 | 免费无码又爽又刺激A片小说 | 内射白浆一区二区在线观看 | 久久久毛片 | 蝌蚪视频91 | 色欲AV巨乳无码一区二区 | 秋霞网伦理片新网 | 婷婷激情五月综合 | 九九热这里只有国产精品 | 韩国漂亮老师做爰BD | 麻豆久久久9性大片 | 黄页网站在线免费观看 | 久久人妻熟女中文字幕AV蜜芽 | 苍井空a v免费视频 苍井空a 集在线观看网站 | 综合在线 日韩欧美 中文字幕 | 色之站| 四房开心色播 | 97精品国产综合久久 | 双乳被幺公嗦到爽死小L | 国产中文字幕第一页 | 欧美日韩国产一区三区 | 亚洲 日韩 色 图网站 | 青草青草久热精品视频99 | 亚洲AV成人无码一二三在线观看 | 亚洲国产成人九九综合 | 久久综合偷拍无码 | 国产微拍| 欧美丰满熟妇BBB久久久 | 成人A片熟女人妻久久 | 无码激情做A爰片毛片A片日本 | 麻花传媒68XXX在线观看 | 亚洲国产精品成熟老女人 | 69式免费视频 | 欧美亚洲h在线一区二区 | 品色堂 pin6| 欧美女同视频 | 久久人精品 | 久久久久久久久久久96av | 欧美精品一区二区少妇免费A片 | 无码色AV一二区在线播放 | 成人无码区免费A片视频WWW | 亚洲婷婷丁香 | 天天夜夜啦啦啦 | 午夜理论片日本中文在线 | 国产无遮挡A片又黄又爽小说 | 国精产品网曝黑料在线观看 | 新婚人妻不戴套国产精品 | 国内精品一卡2卡3卡四卡 | 91正在播放极品白嫩在线观看 | 国产精品VIDEOSSEX久久发布 | 久久精品日韩一区国产二区 | 国产极品尤物铁牛tv网站 | 九九热精品免费 | 性一交一乱一欲A片 | 天天做天天爱天天大综合 | 日本一区二区三区在线视频观看免费 | 最近免费中文字幕大全高清大全 | 国产白丝精品爽爽久久久久久蜜臀 | 九九精品免费观看在线 | 亚洲va视频 | 久久手机娱乐网 | 99久久免费看少妇高潮A片特黄 | 天天综合网天天综合色不卡 | 国产色婷亚洲99精品AV在 | 亚色图 | 热99精品香蕉视频 | 免费无码又爽又刺激高潮视频日本 | 国产99小视频 | 小日本在线观看免费视频 | 亚洲国产精品日本无码网站 | h片在线观看视频 | 最近中文字幕完整在线看一 | 在线看片中文字幕 | 在线观看国产精品一区 | 国产精品VIDEOSSEX久久发布 | 成人网欧美亚洲影视图片 | 中文字幕一级毛片视频 | 性xxx69xxx视频在线观看 | 这里只有精品在线观看 | 国产精品久久久久久久A片冻果 | 九九免费的视频 | 国产一级毛片网站 | 久久99热这里只有精品66 | 麻豆精品国产精华液好用吗 | 欧美日本一二三区 | 99re国产| 国产成人精品123区免费视频 | 2018天天干天天射 | 无人区卡一卡二卡三乱码网站 | 成人AV免费网址在线观看 | 在线观看免费情网站大全 | 宝贝乘把腿张开让我添动态图 | 免费看成人AA片无码视频吃奶 | 国产高清视频免费 | 清纯漂亮小美女准备啪啪 | 国产三级在线观看 | 久久综合亚洲色综合 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 久久永久免费 | 成人全黄A片免费看 | 色八区人妻视频在线精品 | 国产一级毛片a午夜一级毛片 | 国产乱子轮XXX农村 国产伦精品一区二区三区免费 | 超碰老师97zyz资源总站 | 日本三级全大电影免费 | 经典国产乱子伦精品视频 | 日本BBW丰满牲交片 日本bbw激情bbw | 国产99久久久国产精品免费看 | 精品一卡2卡三卡4卡免费乱码 | 小泽玛利亚bt下载 | 手机在线观看黄色 | 亚洲在线视频自拍精品 | 99re久久在热线播放最新地址 | 老师我好爽再深一点办公室 | 不卡免费视频 | 秋霞久久久久久一区二区 | 美国毛片基地 | 亚洲AV综合AV一区二区综合 | 波多 在线 | 女人18毛片A片久久18软件 | 岛国在线无码高清视频 | 日本免费黄网站 | 草 榴 2020最新地址T66Y | 成熟iphone69 | 国产SUV精二区 | 真人做爰片免费视频毛片中文 | 伊人性伊人情综合网 | 99久久精品国语对白 | 又硬又粗进去好爽A片欧美 又硬又粗进去好爽A片天美APP | 免费一级a毛片 | 亚洲区色情区激情区小说 | 激情五月深爱五月 | 日本精品a在线观看 | 翁公的巨物挺进了我密 | 老熟女交换五十路交换A片视频 | 日韩焦点影视 | 高清国产一级精品毛片基地 | 97在线线免费观看视频在线观看 | 欧美性生交A片免费看 | 在线v片免费观看视频 | 亚洲一区二区欧美日韩 | 国产xx肥老妇视频奂费 | 欧美刺激黄A片 | 麻花传媒在线观看免费 | 国产经典哔哩哔哩 | 色女人天堂 | 国产又硬又粗进去好爽A片软件 | 国产一卡2卡3卡4卡精品 | 五月婷婷开心 中文字幕 | 狠狠狠地在啪线香蕉 | 国产一级一级一级国产片 | 凹凸在线无码免费视频 | 66亚洲一卡2卡新区成片发布 | 亚洲精品久久久久久AV伊人 | 日韩精品一区二区三区免费视频 | 91制片厂制作果冻传媒网站 | 日韩欧美伦理片 | 精品国产不卡一区二区三区 | 97碰碰碰免费公开在线视频 | 日日夜夜免费精品 | 国产精品色欲AV亚洲三区软件 | 打开美人妻的两腿 | 精品久久久久成人码免费动漫 | 第一次破處在线国语视频播放 | 黄色网址免费在线播放 | 曰本人一级毛片免费完整视频 | 国产三级精品三级在专区中文 | 波多野结衣精品一区二区三区 | 欧美裸色美妆大全 | 少妇人妻丰满做爰XXX | 色妞色视频一区二区三区四区 | 国产a高清 | 三级成人AV电影在线观看 | 大色网我爱看 | 99九九精品国产高清自在线 | 亚洲国产日韩欧美视频二区 | 国偷自产一区二视频观看 | 国产成人精品亚洲2020 | 国产又粗又深又猛又爽又黄A片 | 久久精品视频在线看 | 亚洲久悠悠色悠在线播放 | 当着闺蜜的面被抽插后入小说 | 男女夜晚在爽视频免费观看 | 女人毛多水多高潮A片 | 国产高清管线免费视频 | 成人在线黄色 | 这里是九九伊人 | 黄色网址播放 | 国产91影院| 亚洲人妻av伦理 | 一个人免费视频观看在线www | 亚洲自偷精品视频自拍 | 亚洲逼 | 久久久无码精品无码国产人妻丝瓜 | 日本樱花视频高清观看 | 国产在线一区二区 | 99九九热 | 亚洲另类自拍 | 国产亚洲精品久久久久久久久动漫 | www视频在线观看免费 | 女人aaaaa片一级一毛片 | 国产无遮挡成人免费视频网站 | 成人国产精品日本在线 | 亚洲欧洲精品成人久久曰影片 | 亚洲人成色20242024老人头 | 久久久久久久久性潮 | 波多野结衣视频一区 | 国产超高清麻豆精品传媒麻豆精品 | 精品玖玖 | 日本黄页免费 | 伊人久久精品久久亚洲一区 | 韩国医院的特殊待遇5 | 日韩精品一区二区三区AV在线观看 | 国产真实乱子伦新视频 | 色窝窝免费播放视频在线 | 千色成人网 | 成人免费看AA片 | 最近最新中文字幕大全高清版 | 国产精品国产高清国产专区 | 小SB几天没做SAO死了H | 全部在线播放免费毛片 | 免费无码又爽又黄又刺激网站 | 国产亚洲精品久久久久久无亚洲 | 久久久久国产午夜 | 欧美成在线 | WWW韩国免费视频在线播放 | 中文线码中文高清播放中 | 警察锅哥40集电视剧免费完整版 | 国产午夜亚洲精品一区 | 天堂а√中文最新版地址 | 抖抈APP| 桃子视频在线观看免费完整版 | 丁香婷婷影院 | 国产欧美va欧美va香蕉在线 | 艳妇臀荡乳欲伦交换H在线观看 | 久久久久久久99久久久毒国产 | 免费观看黄色片 | 黄色三级网址 | 熟妇乱子作爱视频大陆 | 国产精品久久久爽爽爽麻豆色哟哟 | 色吧中文网 | 在线成年av动漫电影 | 三龙一凤H啪肉Np文 三男一女伦奷A片 | 国产欧美日韩灭亚洲精品 | 欧美性在线视频 | 亚洲成人99| 日韩精品网 | 豆国产97在线 | 亚洲 | 欧美jizz| 波多野结衣中文丝袜字幕 | 无码高潮又爽又黄A片日本动漫 | 狠狠色噜噜狠狠狠888米奇 | 天堂tv亚洲tv日本tv欧美人tv | 亚洲视频久热九色视频 | 亚洲中文字幕在线观看 | 人与禽ZOZO性伦 | 日本a在线免费观看 | 乱子轮视频在线看 | 日韩一级不卡 | 网址在线观看你懂的 | 天天操天天干天天透 | 狠狠干天天干 | 麻豆精品传媒2024艾秋刺青 | 抱着娇妻让朋友一起弄 | 大陆毛片| 新婚夜被五个伴郎强H | 日本一线a视频免费观看 | 国产中字 | 国产片一级aaa毛片视频 | 日韩xx00| 国产一有一级毛片视频 | 在线观看免费视频污网站 | 自偷自拍三级全三级视频 | 99re在线视频观看 | 亚洲精品v欧美精品动漫精品 | 亚洲AV久久无码精品九号 | 日本卡一卡二卡三卡四免费 | 中文字幕色婷婷在线视频 | 没有废话全色肉的黄文 | 国产又色又爽又黄的网站在线一级 | 亚洲精品色情婷婷在线播放 | 日本一卡二卡三卡四卡无卡免费播放 | 一级毛片全部免 | 极品少妇粉嫩小泬啪啪AV | 人成乱码一卡二卡三四卡五卡六卡 | 久久久国产精品免费看 | 久久亚洲天堂 | 亚洲A片无码精品毛片 | 五月综合激情久久婷婷 | 国产在线永久视频 | 日韩精品中文字幕在线观看 | 六月婷婷综合激情 | 日韩aa在线观看 | 日韩中文字幕在线播放 | 97色伦图区97色伦综合图区 | 一区三区三区不卡 | 尤物精品国产第一福利三区 | 丰满岳乱妇一区二区三区 | 最近最新中文字幕免费高清1 | 韩国三级日本三级香港三级黄 | 国产网站免费 | 无码日本邻居大乳人妻波多野结衣 | 91在线视频在线观看 | 亚洲欧洲日本天天堂在线观看 | 欧美黄区| 成人全黄三级视频在线观看 | 日韩亚洲欧美中文高清 | 国产欧美日韩亚洲第一页 | 性生交大片免费看A片直播 性生生活色欲片性按摩 | 国产色婷婷精品免费视频 | 色中影院 | 最近韩国日本免费观看免费 | 免费一级做a爰片久久毛片 免费一级特黄欧美大片久久网 | 日本无码一二三区别免费 | 欧美乱妇日本无乱码特黄大片 | 波多野结家庭教师 | 8hdxxxx中国18hd | 午夜看片 | 欧洲乱码一卡2卡三卡4卡高清 | 日本三级在线观影 | 免费欧美黄色 | 久久精品免费人成人A片 | 羞羞影院男女爽爽影院尤物 | 国产人成精品香港三级在 | 亚洲天堂三区 | 坐在男人嘴上让他添在线视频 | 欧美性在线视频 | 无码人妻精品国产婷婷 | 日b视频免费看 | 自偷自拍亚洲综合精品 | 国模欢欢高清炮交图片 | 国产无遮挡色视频免费观看性色 | jizz亚洲日本| 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 国产精品路线1路线2路线 | 九九九久久久 | 麻豆AV无码精品一区二区 | 丁香婷婷小说 | 西西人体做爰大胆图片 | 亚洲伊人久久综合成人 | 永久国产| 全免费a级毛片免费看视频免 | 乱爱妇乱子伦精品 | 欧美又长又大又深又爽A片特黄 | 午夜福利观看视频1 | 免费女性裸身照无遮挡网站 | 五月天丁香视频 | 一机毛片| 欧美一级片在线视频 | 国产亚洲精品久久久久久国 | 色综合天天综合网 | 日韩欧美中文字幕无码 | 亚洲xxxx视频 | 99热只有这里有精品 | 日本高清视频在线无吗 | aaaaaaa一级毛片 | 国产精品高潮呻吟AV久久小说 | 欧美成人大色情大片破碎的拥抱 | 日本护士做xxxxxx视频 | 茶卡盐湖| 免费的青榴视频在线观看 | 五月深爱婷婷 |