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

gybdxnhv

13 Oct 2025(atualizado 13/10/2025 às 02h22)

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

Temas

Compartilhe

No Recife, trabalho para manter as praias limpas acontece dia e noite'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 jogo do labirinto jogo do labirintoits 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

'There were days where I felt I could never leave' Intimate images of 'the real Hotel California'.txt

Descida de Boia no Rio Parnaíba reúne 500 pessoas no interior do Piauí; VEJA VíDEO conhecimento e os lazer entretenimento.

GRáFICOS

nos eixos

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

Bonecos gigantes de Olinda se vestem de matutos e saem em cortejo de S?o Jo?o lazer e os ponto quente explorar.

Navegue por temas

QUIZ: você sabe cuidar bem das praias? Fa?a o teste e descubra! Suspeito de matar jovem a tiros é preso horas após crime no Norte do Piauí Com mais de 30 atra??es, S?o Jo?o de Salgueiro come?a nesta quarta (18); veja programa??o Mar\u00e7al \u00e9 narc\u00edsico, megaloman\u00edaco, soberbo e quer tirar proveito de tudo', diz Malafaia Amanhecer no Sert?o, de Alagoas, vence Festival de Quadrilhas Juninas da Globo com enredo sobre violência doméstica; veja ranking Dono de bar em Teresina avista policiais, tenta esconder revólver e é preso por porte ilegal Patrulha Maria da Penha fez 210 fiscaliza??es e 108 atendimentos no mês de agosto em Petrolina Como o forró dos anos 90 venceu o tempo com bandas e hits 'das antigas' que tocam sem parar; veja principais sucessos Mar\u00e7al \u00e9 narc\u00edsico, megaloman\u00edaco, soberbo e quer tirar proveito de tudo', diz Malafaia Adolescente de 14 anos que foi assassinado enquanto almo?ava em Teresina respondia procedimentos por roubo
国产精品国产三级国产专区不 | 综合伊人 | 观看在线人成电影 | 毛茸茸的浓密在线视频 | 日本三日本三级香港三级 | 比较刺激的H公共场合小说 边吃奶边狠狠躁日韩A片 | 91制片厂制作果冻传媒168 | 好紧再快点好深好爽视频 | 中文字幕在线观看91 | 果冻传媒董小宛一区二区 | 中文字幕人成乱码在线观看 | 免费视频国产在线观看 | 中文字幕无码人妻AAA片 | aaa一区二区三区 | 真实国产乱子露脸 | 亚洲成av人影片在线观看 | 下流女孩 | 成年18网站免费视频网站 | 国产又色又爽无遮挡免费 | 男人天堂网页 | 国产在线视频资源 | 97精品久久久久中文字幕 | 每日最新avhd101天天看新片 | 秋霞网国产 | 动漫成年美女黄漫网站 | 青青热久免费精品视频在首页 | 无尺码精品日本欧美 | 欧美成人亚洲国产精品 | 黑人xxxx精品| 亚洲视频91| 最新激情网站 | 国产精品久久人妻无码蜜 | 91国在线国内在线播放 | 中文字幕在线观看网站 | 亚洲精品久久麻豆蜜桃 | av免费网站不卡观看 | 欧美一级va在线视频免费播放 | 国内外成人色情视频 | 久久免费观看国产精品 | 亚州日韩精品AV片无码中文 | 青草内射中出高潮 | 少妇被躁爽到高潮无码久久 | 波多野结衣在线影视免费观看 | 日本韩国三级 | 亚洲这里只有精品 | 人妻熟女少妇一区二区三区 | 美国BB肥| 免费一级a毛片 | 国产高清免费观看 | 天天干天操 | 欧美国产激情二区三区-免费A片 | 大陆黄色网 | 小蝌蚪APP丝瓜无限看下载 | 能播放女人另类ZOOZ0 | 午夜寂寞剧场 | 四虎网站最新免费地址2024 | 成电影人免费网站 | 久久久无码精品亚洲日韩啪啪网站 | 少妇特黄A片一区二区三区免费看 | 99久久无码一区人妻A片竹菊 | 亚洲色图欧美激情 | 很详细的肉肉床文片段 | 欧美一级久久久久久久久大 | 色老头xxxwww作爱视频 | 日韩制服丝袜在线 | 一本色道无码道在线 | 亚洲黄色三级视频 | 蜜桃视频在线观看免费视频网站WWW | 苍井空电影去哪儿看网址 | 尤物网站永久点击进入 | 五月深爱网 | avtt天堂东京热一道本 | 日本无码人妻精品一区二区视频 | CHINESETUBE国产在线观看 chinese熟女熟妇m1f | 国产成人精品视频午夜 | 免费国产直接看片av | 亚洲区激情区图片小说区 | 自拍97 | 成人精品视频在线观看 | 欧美日韩一区二区三区免费不卡 | 欧美日韩福利视频一区二区三区 | 国产69式A片| 欧美白人黑人xxxx猛交 | 日日摸夜夜添夜夜添影院视频 | 日本在线视 | 最近韩国电影高清免费观看在线 | 一本大道卡一卡二卡三乱码 - 八 | 迅雷成人网 | 他的手抓住了我的小兔子视频 | 成人综合国产乱在线 | 欧美日韩一线 | 中文字幕亚洲精品久久AV | 86版农场主三个女儿 | 欧洲 亚洲 国产图片综合 | 女同桌张开腿让我爽了一夜 | 播五月综合| 韩国色情巜肉欲夜姬 | 国产精品九九视频 | 性色国产成人久久久精品一区二区 | 免费老外的毛片清高 | 色视频在线观看完整免费版 | 久久久久久九九 | 六月丁香激情 | 福利片导航| 被群CAO的合不拢腿H小说 | 免费看黄色一级 | 亚洲男人的天堂成人 | 中文字幕免费在线视频 | 偷拍欧洲亚洲性 | 亚洲色图日韩 | 在线播放91撕破艺校舞蹈系 | 国产成人亚洲综合a∨婷婷 国产成人亚洲综合91精品555 | 性欧美高清精品video | 欧洲美女人 一级毛片 | 新午夜影院 | 午夜精品A片一区二区三区 午夜激情在线观看 | 在线观看黄永久免费网站 | 国产精品久久久久久久伊一 | 草影视| 俺也去官网| 最近最新中文字幕在线手机版 | 五月天黄色网址 | 亚洲国产区男人本色在线观看 | 最新四虎影在线在永久观看 | 老司机午夜视频在线观看 | 国产美女无遮挡裸体毛片A片软件 | 秋霞精品 | 天堂视频在线视频观看2018 | 2019中文字幕乱码免费 | 国产精品自产拍在线观看中文 | 91麻豆精品一二三区在线 | 亚洲熟少妇在线播放999 | 日本xxx在线观看免费播放 | 2024四虎影视最新免费 | 婷婷丁香色 | jizz性欧美2| 婷婷成人丁香五月综合激情 | 国产午夜理论片YY8840Y | 天天躁了天天躁了天天躁 | 小明精品国产一区二区三区 | 消息称老熟妇乱视频一区二区 | 久久久综合香蕉尹人综合网 | 亚洲午夜久久久久久尤物 | 全国三级网站在线观看 | 波多野吉衣在线视频 | 国偷自产AV一区二区三区蜜臀 | 青草免费在线 | 精品国产乱码久久久久久软件大全 | 日本不卡三级 | 高清午夜福利电影在线 | 天天干天天草天天 | av毛片免费看| 精品视频在线免费观看 | 国产免费久久爱久久啪 | 狠狠躁日日躁夜夜躁2024麻豆 | 欧美性另类 | 一个人看的www在线看视频 | 国产在线无码不卡影视影院 | 在线综合亚洲中文精品 | 中文字幕第一区 | 国产福利资源在线 | 日韩美女大全视频在线 | 午夜激情爱爱 | 校园高H校草深一点H | 色综合视频 | 五月婷婷欧美综合 | 国产福利在线看 | 国产黄色在线看 | 蝌蚪久久窝 | 四虎影在线永久免费四虎地址8848aa | 毛片黄在线看免费 | 久久久久久毛片免费观看 | 香蕉视频97| 波多野衣结在线精品二区 | 又色又爽又高潮免费观看 | i91.media果冻传媒 | 日韩人妻无码精品-专区 | 国产精品99久久久久久AV小说 | 秋霞网伦理片新网 | 国产SUV精品一区二AV18 | 美女毛毛片 | 亚洲精品AV中文字幕在线 | 爱搞逼综合网 | 插综合网 | 中文字幕欧美日韩久久 | 久久九九久精品国产 | XL上司在线完整版无马赛克 | 免费黄色成年网站 | 国产精品久久久久福利网站 | 国产高清卡一卡新区 | 99国产在线精品观看二区 | 国产成人A片免费观看 | AV亚洲精品少妇毛片无码 | 糙汉顶弄抽插HHHH | 久久九九有精品国产56 | 电家庭影院午夜 | 色丁香婷婷 | 国产成人手机高清在线观看网站 | 国产精品久久久久久久久久久威 | 中文精品字幕电影在线播放视频 | 午夜免费观看视频 | a色毛片免费视频 | 日本vs欧美一区二区三区 | 男人猛躁进女人的毛片A片小说 | 国产精品毛片在线大全 | 欧美阿v天堂视频在99线 | 久草手机在线视频 | 欧美乱大交xxxxx在线观看 | 欧美色中色| 国产乱妇乱子在线播视频播放网站 | 午夜伦理片 | 色播四房间 | 中文在线三级中文字幕 | 真实国产熟睡乱子伦视频 | 国产精品不卡在线观看 | 久久人妻AV一区二区软件 | 三级毛片在线看 | 精品欧美成人无码专区毛片视频 | 成人五月网 | 黄页网站视频在线观看 | 日本少妇做爰免费视频网站 | 国产深夜男女无套内射 | 情网站色 | 中文字幕综合在线 | 97视频精品全国在线观看 | 国产不卡在线看 | 免费黄网站在线观看 | 亚洲精品久久99久久一二三区 | 天天摸天天碰色综合网 | 一个人看的www视频高清免费 | 在暴雪时分电视剧免费观看吴磊 | www.夜夜操 | 小小水蜜桃视频高清在线观看1 | 亚洲国产精品自在在线观看 | 出轨的女人国语 | 深爱五月婷婷 | 免费中文字幕囯产在线网站 | 免费一级黄色片 | 性奴抽插乳中出精没射视频搜索 | 国产精品色情国产三级在 | 亚洲国产精品综合久久久 | 精品无码一区在线观看 | 色免费观看 | 亚洲成成品源码中国有限公司 | 久久99国产综合精品 | 久久久这里只有精品免费 | 露胸和屁股衣服的衣服 | 久久久久久久99久久久毒国产 | 日日鲁鲁鲁夜夜爽爽狠狠 | 日韩免费一级片 | 最近中文字幕高清中文字幕MV | 四虎8848随点随看 | 国产成人+亚洲欧洲 | 免费网站高清在线观看视频 | 国产人妻人伦精品熟女麻豆 | 没有废话全色肉的黄文 | 韩国jizz| 黑色幽默国语版全集 | 中文字幕2020| 精品久久久久久久高清 | 亚洲国产经典 | 又色又爽又黄的视频网站免费 | 亚洲 欧美 天堂 综合 | 精品一区二区免费视频蜜桃网 | 求一色站 | 在线不卡日本v二区 | 国产三级毛片视频 | 97国产无遮挡A片又黄又爽小说 | 欧洲亚洲国产精华液 | 国精产品一区二区三区有限 | 久久婷婷五月综合色精品首页 | 97伦理| 高清国产精品人妻一区二区 | 色五丁香| 久久综合图片 | 国产伦精品一区二区三区精品 | 99免费精品 | 最近最好看2019年中文字幕 | 三级日本高清完整版热播 | 久久精品全国免费观看国产 | 黑人狂躁日本妞无码A片 | 欧美一区二区三区成人A片 欧美一性一交一伦一A片视频 | 91精品手机国产在线能 | 一级毛片aa高清免费观看 | 无人区乱码1区2区3区 | 黑人xxxx性hd极品 | аⅴ天堂中文在线网 | 国产九九九九九九九A片 | 黄色一级片免费播放 | 九九久久免费视频 | 永久黄网站色视频免费观看 | 国产毛片精品一区二区色欲黄A片 | 一级做a爱过程免费视 | 无码AV动漫精品一区二区免费 | 91精品国产9l久久久久 | 中日韩AV亚洲高潮无码 | 亚洲AV久久久精品麻豆 | 色综合欧美 | 国产精品xxx电影 | 天堂8在线天堂资源在线 | 色播六月| aa一级护士医生毛片 | 国产毛片精品AV一区二区 | 刺激性A片欧美激情免费 | 性一交一乱一交A片久 | 国精产品一区二区三区 | 中国一级特黄剌激爽毛片 | 高清国产在线直播 | 亚1州区2区3区产品乱码 | 天美传媒国产剧影视公司 | 亚洲在成人网在线看 | 亚洲永久免费 | 另类自拍 | 黄色网址在线免费播放 | 国产午夜精品美女视频在线 | 91三级视频| 国产成人久久婷婷精品流白浆 | 人人人免费人人专区人人 | 刺激性A片欧美激情免费 | 日韩免费毛片 | 黑人两根一起强进 | 欧美日韩另类在线 | 999久久国产精品免费人妻 | 狠狠色噜噜狠狠狠狠色综合网 | 人妻献身系列第54部 | 色情亚洲AV成人小说 | 一女被多男枪H又黄又激烈 一女多男np高辣文h | 国产免费又黄又爽又色的小说 | 日韩a级片视频 | 国产精品久久毛片完整版 | 天天碰免费视频 | 婷婷97狠狠成人网站 | 精品一区二区三区无码AV久久 | 免费网站国产 | 国产v在线 | 嗯 好深 啊 用力 哦 嗯 啊 | 日本一曲二曲三曲高清 | 婷婷射精AV这里只有精品 | 国产精品女上位在线观看 | 国产人伦人妻精品一区二区 | 中字幕视频在线永久在线 | 国产又爽又大又黄A片小说 国产又爽又黄无码无遮挡在线观看 | 强奷皇后娇呻浪吟前后夹击 | 国产亚洲精品久久7777777 | 久久视频精品38线视频在线观看 | 日本三级韩国三级香i港三级 | 激情五月婷婷小说 | 青草青草久热精品视频在线网站 | 日本成本人片无码免费网站 | 你好湿呀!小妖精快叫 | 色欲精品国产AV久久久 | a亚洲欧美中文日韩在线v日本 | 麻豆A片爽爽歪歪爽爽视频看看 | 美国一级毛片免费看成人 | 天美传媒新剧国产资源 | 色一伦一情一区二区三区 | 苍井空三点快播 | 国产精品久久久久久人妻香蕉 | 国产欧美日韩一区二区三区在线 | 成片一卡三卡四卡免费网站 | 美女诱惑性感揉胸 | 国产精品国产三级国产专区不 | 日韩精品人妻AV一区二区三区 | 99色婷婷| 亚洲欧洲日本国产专区一区 | 久久精品国产无限资源 | 国产亚洲精品久久久久苍井松 | 亚洲丁香婷婷综合久久小说 | 66成人网| 国产在线精品视频免费观看 | 天堂网在线最新版www中文网 | 色婷婷五 | 外国三级毛片 | 色欲天天天综合网 | 无码做爰全过程免费的床震 | 亚洲国产精品久久久久久网站 | 九九有点热 | 六月丁香 五月婷婷小说 | 色猫咪AV在线网址 | 国产做国产爱免费视频 | 艳妇臀荡乳欲伦交换H漫 | 全黄H全肉短篇禁乱NP | 老司机综合网 | 老妇的两片 肉唇 翻进翻出 | 最近中文字幕免费大全 | 亚洲一级黄色毛片 | 欧美高清束缚xxxxhdhd | 亚洲精品久久久久高潮 | 麻豆映画传媒新剧免费观看 | 国产乱码精品一区二区三区四川 | 又www又黄又爽啪啪网站 | 精品国产乱码久久久久APP下载 | 免费高清曰韩仑理 | 一区二区亚洲精品国产精华液 | 黑帮少爷爱上我第一季在线观看 | 黄页视频免费在线观看 | 风韵丰满熟妇啪啪区老老熟女百度 | 99久久精品国产免费 | 91插插插网站 | 国产一在线 | 女闺蜜扒开腿让我CAO她 | 日韩精品视频免费 | 亚洲欧洲精品成人久久曰 | 无码人妻国产一区二区三区 | 狠狠五月 | 天天做天天做天天综合网 | 嫩草国产福利视频一区二区 | 久久草资在线播放 | 亚洲精品无码成人A片九色播放 | 成人无码精品一区二区在线观看 | 性生生活色欲片性按摩 | 人人电影| 天天干天天操天天干 | 欧美激情16p | 强奷漂亮的女邻居完整版 | 天天弄 | 精品国产免费观看久久久 | 美女解开胸衣露出奶头的游戏 | 天天干天天干天天干天天干 | 久久久久香蕉视频 | 欧美乱码卡1卡2卡三卡四卡 | 五月天色婷婷在线 | 精产国品一区二区三产区 | 日韩成人在线视频 | 久久免费看视频 | 欧美黄色一级在线 | 亚洲AV成人噜噜无码网站A片 | 免费高清视频免费观看 | A片试看120分钟做受视频 | 舌头伸进去添少妇好爽高潮 | 成人无码高潮AV在线观看 | 日本高清在线一区二区三区 | 欧美阿v天堂视频在99线 | 欧美人与牲动交xxxx | 国内揄拍国产精品人妻电影 | 免费国产黄网站在线看品善网 | 清晨被舔醒的NP小说 | 中文字幕亚洲激情 | 欧美日韩性高爱潮视频 | 99RE6这里只有精品国产AV | 日本女同视频 | 亚洲欧美一区二区三区图片 | 久久丁香视频 | 中文字幕一区二区三A片 | 色噜噜狠狠狠狠色综合久一 | 国产免费又黄又爽又色的小说 | 影音先锋av撸资源库 | 精品欧美一区二区三区久久久 | 久久久视频2019| 日韩午夜网站 | 日本少妇浓毛BBWBBW | 在线观看网站国产 | 日产精品一区到六区免费 | 97亚洲精华液| 乱码一区入口一欧美 | 成人黄色免费网址 | 色综合天天综合网国产成人网 | 久久精品国产日本波多麻结衣 | 亚洲国产日韩a精品乱码 | 国产在线亚洲精品观看不卡 | 国产真实夫妇4P交换A片 | 国产精品亚洲欧美动漫卡通 | 欧美精品v欧洲精品 | 亚洲97| 1.学生妹内射视频 | jizzjizz国产 | WWW午夜调情| 久久在精品线影院 | 日本高清在线观看视频 | 一本久道久久综合婷婷五月 | 国产国产人精品视频69 | 毛片啪啪视频 | 久久久久久精 | 无码免费视频AAAAAA片草莓 | 久久国产人妻一区二区免费 | 4480yy午夜私人影院 | 最近国语视频免费观看在线播放 | 91在线免费观看网站 | 草草影院地址发布页ccyycom | 葫芦娃.combo深夜释放自己 | 上色天天综合网 | 亚洲综合婷婷 | 性色AV一区二区三区咪爱四虎 | 国产在线视频h | 成熟妇人A片免费看网站 | 色偷偷AV亚洲男人的天堂 | 2020国产精品久久久久 | 日本亚洲一区二区三区 | 最近最新中文字幕在线手机版 | 久久综合五月婷婷 | 黄页免费在线看 | 成人午夜福利视频镇东影视 | 精品亚洲欧美中文字幕在线看 | 中文字幕一区在线观看视频 | 色网址之家123图片 色网址之家123 | bt天堂网.www在线资源 | 天天久久综合网站 | 黄页免费观看 | 日韩首页| 成人做爰A片三免费视频 | 天天色亚洲 | 黄AV国产永久免费网站 | 蜜臀国产一区二区三区无码A片 | 大量国产激情视频在线观看 | 韩国中文全部三级伦在线观看中文 | 久久久香蕉视频 | 欧美黑人xxxx | 成人在线免费观看视频 | 国产一浮力影院 | 三妻四妾高清完整版在线观看免费 | 中文字幕一视频97色伦 | 亚精品一卡2卡三卡4卡无卡 | 国产亚洲精品AV麻豆狂野 | 国产91av视频 | 欧美精品中文字幕亚洲专区 | 国精产品一区一区三区有限公司 | 69久久国产露脸精品国产 | 色老头AV亚洲一区二区男男 | 亚洲激情a | 久久AV无码乱码A片无码苍井空 | 陪读妇乱子伦 | 久热亚洲精品一区二区 | 日韩福利视频一区 | 99国产午夜精品一区二区 | 最好看的2018国语在线 | 黄色成人在线播放 | 欧美日本高清动作片www网站 | 青青热久免费精品视频精品 | 77788色婬在线视频 | 97久久超碰中文字幕 | 成人免费一区二区无码视频 | 琪琪热码在线中文字幕 | 日本一本二本三区免费2019高清 | 91亚洲影院| 黑人强伦姧人妻日韩那庞大的 | 曰韩无码AV久久久免费 | 免费国产黄网站在线观看可以下载 | 伊人网欧美 | 丰肥美熟欲妇乱小说 | 久久久久久久岛国免费播放 | 午夜夫妻视频 | 亚洲一区二区三区免费看 | 亚洲AV国产成人精品区三上 | 99蜜桃臀久久久欧美精品网站 | 全黄H全肉短篇禁乱NP慕浅浅 | 青青草原精品国产亚洲AV | 真实国产乱子伦精品一区二区三区 | 国产亚洲精品久久精品6 | 午夜福利国产在线观看1 | 色偷偷超碰av男人天堂 | 免费无码无遮挡永久色情聊天下载 | 国产又爽又猛又粗的A片 | 巜疯狂的少妇4做爰BD | 蜜色欲多人AV久久无码 | 91碰视频 | 成人黄色免费 | 色噜噜狠狠狠狠色综合久一 | 国产亚洲精品久久久999蜜臀 | 成人免费一区二区无码视频 | 成人69视频在线观看免费 | 国产SUV精品一区二区四区三区 | 成人亚洲A片V一区二区三区日本 | 成人做爰高潮A片免费视频 成人做爰片免费网站 | 欧美网址在线观看 | 欧美videos人牛交 | 好看的网站你懂的 | 日本久久精品毛片一区随边看 | 啊灬啊灬高潮来了视频直播A片 | 亚洲欧美国产精品久久久 | 浴室里强摁做开腿呻吟的漫画 | 强行扒开双腿尽情玩弄视频 | 国产一级久久久久久毛片 | 嗯好爽快点插我视频在线播放 | 欧美又粗又大色情 | 又硬又粗进去好爽A片天美APP | 超碰在线路98 | 久久网综合| 成人做爰WWW免费看视频韩国 | hh99me福利毛片在线看 | 草逼网址| 欧美日韩国产在线人成app | 日本三级一区二区三区 | 国产麻豆精品人妻无码A片 国产麻豆精品久久一二三 国产伦精品一区二区三区在线观看 | 亚洲国产精品VA在线看黑人 | stormy daniels在线观看 | 影音先锋av在线资源库 | 成人免费视频在线观看 | 总有一天在线完整免费观看 | 欧美成人一区亚洲一区 | 在线观看中文字幕一区 | 精品一区二区三区无码AV久久 | 风韵人妻丰满熟妇老熟女 | 精品午夜寂寞影院在线观看 | 欧美丰满少妇久久无码精品 | 在线欧美精品一区二区三区 | 强睡年轻的女老板2中文电影 | 91精品久久久久久久99蜜桃 | 国产xx肥老妇视频奂费 | 伦理79电影网在线观看 | 黄A无码片内射无码视频 | 亚洲精品国偷拍自产在线 | 再深点灬舒服灬太大了动态图 | 亚洲 欧美 综合 高清 在线 | 无遮挡国产高潮视频免费观看 | 国产极品JK白丝喷白浆在 | 免费日产乱码卡一卡 | 高h全肉图 | 国产综合在线观看 | 希岛爱理aⅴ在线中文字幕 西方毛片 | 久久免费看少妇高潮A片特爽 | 特色毛片 | 成人影院永久免费观看网址 | 伦理片在线线手机版韩国免费观看 | 欧美乱妇色情大片在线观看免费 | 国产欧美一区二区三区视频 | 欧美黄黄黄AAA片片 欧美黄色免费网址 | 日b在线观看 | 成年黄网站色视频免费观看 | 国产三级在线播放不卡 | 久久精品午夜 | 国产黄A片在线观看永久免费麻豆 | 久久国产乱子伦精品免费M 久久国产伦子伦精品 | 日产乱码免费一卡二卡 | 国产麻豆91网在线看 | 久久热视频精品店99 | 成人做爰9片免费看网站 | 97在线免费看视频 | gogo亚洲肉体艺术照片9090 | 欧美精品一区二区三区在线播放 | 亚洲精品久久无码AV片动漫网站 | 成年免费观看黄页网站 | 看全色黄大色黄女片 | 苍井空a v 免费视频 | 国产又黄又硬又湿又黄的A片小说 | 亚洲A片永久无码精品 | 欧美深夜福利 | 国产在线精品亚洲第一区 | 含着不拔出来 H 1V1 | 午夜性色 | 亚洲国产精品v在线播放 | 唇齿之间 | 日韩精品一区在线观看 | 午夜精品人妻无码一区二区三区 | 国产三级在线播放不卡 | 亚洲精品国产不卡在线观看 | 婷婷丁香久久 | 免费国产之a视频 | 国产成人久久综合热 | 欧美性做爰又大又粗又长 | 欧美日韩激情 | 久久99国产一区二区三区 | 亚洲综合久久1区2区3区 | 国产成人无码视频一区二区三区 | 免费色站 | 波多野结衣家庭教师诱惑 | 久久免费视频6 | 日本jizz视频 | 在线观看黄日本高清视频 | 精品国产福利一区二区在线 | 97日日碰人人模人人澡 | 国产SUV精二区九色 国产SUV精二区69 | 免费jizz在线播放视频 | 少年巴比伦免费完整在线观看 | 五月天婷婷视频在线观看 | 麻豆出品视频在线 | 国产精品自拍亚洲 | 50-60岁老妇女一级毛片 | 国色天香精品一卡2卡三卡4卡 | 少妇人妻好深太紧了A片乚 少妇人妻千子深太紧了A片 | 午夜免费观看 | 自拍视频白嫩大学生兼职 | 中文字幕无线手机在线 | 看全色黄大色黄女片 | 国产女人水真多18毛片18精品 | 欧美激情社区 | 天天操穴| 激情欧美日韩一区二区 | 欧美人与牲动交xxxx | 久草黄色| 亚洲国产成人精品动漫 | 98色精品视频在线 | 免费看黄的网站在线看 | 奇米777色| 国产xxxx| 色妃网| 苍井空a 集在线观看网站 | 欧美xxxx色视频在线观看 | 国产玖玖玖精品视频 | 4480yy午夜私人影院 | 狠狠色狠狠色综合日日五 | 国产精品久久久久无码人妻精品 | 亚洲精品免费在线 | 欧美久久网 | 免费含羞草AV片成人 | 深爱综合网 | 性饥渴的漂亮女邻居BD视频 | 五月天婷婷网亚洲综合在线 | 亚洲精品免费视频 | 摸捏奶头动态图 | 日韩黄色成人 | 国产福利在线观看免费第一福利 | 日韩色情无码一本二本三本 | 五月色婷婷综合开心网 | 亚洲精品久久久久中文字幕二区 | 狠狠躁夜夜躁人人爽A片 | 国产a毛片| 亚洲AV成人一区二区三区在线观看 | 久久精品一区二区免费看 | www日韩| 最近更新中文字幕完整版视频 | 国产福利高清在线视频 | WW.国产人妻人伦精品 | 成人午夜在线视频 | xxxx日本免费高清视频 | 日韩一区精品视频一区二区 | 久久国产亚洲电影天堂 | 在线视频免费观看爽爽爽 | avtom影院永久地址人人影院 | 亚洲午夜久久久无码精品网红A片 | 激情六月丁香婷婷 | 中文字幕久久久久久久系列 | 国产精品成人网 | 夜夜躁日日躁狠狠久久 | 欧美亚洲性色影视在线 | 宅男午夜大片又黄又爽大片 | 欧美日本一道高清二区三区 | 99精品全国免费7观看视频 | 帅哥摸舔美女全身视频 | av先锋影音资源男人站 | 亚洲第一黄色网 | 九九久久国产精品大片 | Jjzjizjizjiz日本老师水多 | 日本福利视频导航 | 国产精品亚洲精品久久国语 | 国产另ts另类人妖 | 成人片免费观看WWW 成人免费在线电影 | 五月天色婷婷在线 | 日韩视频欧美视频 | 看亚洲人配人配人种jizz | 青草国内精品视频在线观看 | 芊芊的被校长脔日常H | 欧美日本一区二区三区 | 黄毛片网站 | 在线播放周妍希国产精品 | 久久福利国产 | 久久久久久久国产精品视频 | 双性少爷挨脔日常H惩罚H | 狠狠色噜噜狠狠狠狠69 | 让杜雅尔丹 | 黄页网站免费观看 | 日本高清免费不卡在线播放 | 色综合久久天天综合观看 | 天天成人综合网 | 九九热视频免费观看 | 日本a在线看 | 麻豆AV久久无码精品久久 | 亚洲精品无码成人A片在 | 一级黄色毛片视频 | 精品a级片 | 可以在线看黄的网站 | 亚洲精品无码不卡在线播HE | 97在线视频免费人妻 | 国产人妻人伦精品婷婷 | 玉蒲团3之初入桃源洞 | 最新777奇米影视四色 | 日本成人福利 | 亚洲欧美日韩中文加勒比 | 吉泽明步超m自缚痴女 | 99热热久久 | 超级H荡的辣文小说 | 亚洲色无码A片一区二区红樱 | jizz日本老师jizz在线播放 | 日本黄页网站免费大全 | 免费观看色 | 午夜宅宅伦电影网中文字幕 | 中文字幕日本一区波多野不卡 | 乱码一卡二卡新区永久入口 | 欧美黄色一级 | 精品成人资源在线观看 | 成人做爰WWW免费看视频韩国 | 日韩在线视频观看在线看 | 麻豆一卡2卡三卡4卡网站在线 | 欧美理伦视频 | 成熟交BGMBGMBGM在线看 | 激情丁香开心久久综合 | 国产黄色片一级 | 少妇与大狼拘作爱性A片 | 国产色情18一20岁片A片 | 精品久久久中文字幕二区 | 午夜伊人网 | 色情 免费 视频在线观看 | 欧美黄区 | 久久理伦片琪琪电影院 | 免费啪视频观免费视频 | 无码精品一二三四区A片 | 中文有码人妻字幕在线 | 日韩三级影片 | 我和岳疯狂性做爰全过程 | 波多野结衣全部系列在线观看 |