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

foco

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

qgiimczop

12 Oct 2025(atualizado 12/10/2025 às 02h47)

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

Temas

Compartilhe

Por que o PCC usa metanol para adulterar combustíveis no Brasil; veja os riscos para o carro'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 do dia 4its 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

Your lungs hold secrets about your health as you age – here's a simple test to check them.txt

Monobloco comemora 25 anos e encerra o carnaval de rua do Rio entretenimento e os lazer abrangente.

GRáFICOS

nos eixos

'There was a real gutsiness about them' How the heiresses dubbed the 'dollar princesses' brought US flair to the UK.txt

Lore Improta diz que aceitaria cargo de rainha de bateria, mas que ‘está feliz no cargo que ocupa’ lazer e os enciclopédia lazer.

Navegue por temas

BYD Yangwang U9: elétrico passa dos 470 km/h e bate recorde mundial de velocidade; VíDEO Mais de 25% das micro e pequenas empresas do Brasil contam com o Sicredi LISTA: veja quais foram as 10 motos mais vendidas do Brasil até agosto Flor do Samba é campe? do desfile das escolas de samba do Carnaval 2025 em S?o Luís BYD Sealion 7: veja como se saiu o SUV mais potente e rápido da marca em teste do g1; VíDEO Toyota Corolla GLi, híbrido mais barato da marca, chega por R$ 189.000 Toyota Corolla Cross passa VW T-Cross e se torna o SUVs mais vendido em agosto; veja a lista VíDEO: Haojue DL 160 é mais uma chinesa atrás do público de Honda Bros e Yamaha Crosser; conhe?a VíDEO: Neta X é um SUV elétrico com bom pre?o, mas por que ele quase n?o vende? Veja a avalia??o UPM foi ‘mal julgada’ e ‘sofreu preconceito’, diz presidente da Liesa sobre escola rebaixada no carnaval do Rio
国产品无码一区二区三区在线 | 老司国产高清免费视频 | 9国产露脸精品国产麻豆 | 91尤物国产尤物福利在线 | 第四色网主页 | 久久久久久久尹人综合网亚洲 | 亚洲精品无码一区二区三区仓井松 | 日本在线不卡免费 | 久久99国产精品一区二区 | www.色se.com| 免费高清毛片天天看 | 特级做A爰片毛片免费看无码 | 久久综合九色欧美综合狠狠 | 天天插天天干天天操 | 噜妇插内射精品 | 亚洲午夜免费视频 | 韩国高清不卡一区二区 | 国产中文视频 | 精品国产午夜久久久久九九 | 久精品在线观看 | 国产一级高清视频 | 打开腿闺蜜用黄瓜让我爽 | 中文字幕无码无卡视频 | 亚洲极美女高清视频 | 国产小视频在线高清播放 | 天堂在线网 | 97久久精品无码一区二区欧美人 | 91一区二区三区四区五区 | 成品人和精品人的在线观看 | 一区二区日本视频 | 国产精品视频免费视频 | 欧美成人香蕉网在线观看 | 色情WWW成人片WWW222 | 国产乱码人妻一区二区三区四区 | 麻豆一区产品精品蜜桃的广告语 | 777午夜精品久久AV蜜臀 | 李李妮的视频vk | 色撸在线视频 | 速看网韩国伦理片 | 一个人看的视频WWW高清免费 | 久久99精品久久久久久三级 | www.黄色毛片| 黄视频网站大全 | 日韩视频区 | 青草网 | 日韩黄色在线观看 | 国产在线精品视频免费观看 | japanese大战黑人 | 97人妻一区二区精品免费 | 91精品国产一区 | 99精品中文字幕 | 日韩黄色毛片 | 国产手机在线国内精品 | 九九久久香港经典三级精品 | 漂亮人妻洗澡被强BD中文 | 毛色毛片免费观看 | 97在线观看视频 | 伊人久久综在合线亚洲91 | 五月婷婷之综合缴情 | 99爱视频免费高清在线观看 | 亚洲一卡2卡3卡4卡乱码网站 | 肉欲系列短500篇小说合集 | 亚洲精品久久无码AV片亚洲 | 国产精品乱码色情一区二区视频 | 精品人妻伦九区久久AAA片69 | 云边有个小卖部高清 | 久久爱国产视频在线 | 伦理片在线线手机版韩国免费观看 | ts人妖系列在线专区 | 国产亚洲小视频线播放 | 人人看高清 | 李小璐不雅视频21秒 | WWW九九九毛片无码一区二区 | 2024夜夜干天天天爽 | 国产乱码卡二卡三卡老狼在线观看 | 亚洲日本在线免费观看 | 人妻熟女少妇一区二区三区 | 日本丰满人要无码视频 | 久久精品国产72精品亚洲 | 人人插人人澡 | 国产剧情原创中文片在线 | 在线观看亚洲欧美视频免费 | 国产九精品国产动漫人物 | 在线亚洲天堂 | 免费毛片a在线观看67194 | 美女国产毛片A区内射 | 亚洲在线中文字幕2 | 午夜成人影视神马 | 中文字幕无线观看高清 | 老妇乱子伦视频国产 | 天天爽夜夜春 | 午夜福利体验免费体验区 | 天天看天天干 | 国产一区二区三区国产精品 | 大菠萝福利污下载APP | 成人宗合网 | 日本强伦姧人妻无码视频 | 最近更新中文字幕版 | 男女做爰猛烈动高潮A片色情 | 婷婷激情网站 | 少妇高清性色生活片成人版 | 人人片| 日本高清视频:色情www | 日韩一区二区三区在线 | 美女强奷到抽搐在线播放 | 在线亚洲免费 | 成人无码精品一区二区在线观看 | 边做边爱免费完整版视频播放 | 亚洲精品久久久久无码AV片软件 | 69久久国产露脸精品国产 | 日本三级免费片 | 五月天婷婷免费视频观看 | 国产大片黄在线观看 | 蜜桃在线线免费观看视频 | 澳门一级毛片手机在线看 | 久久久久久九九 | 国产成人精品日本欧美动漫 | 少妇人妻千子深太紧了A片 少妇爽滑高潮几次 | av网址大全 | 我和乡下妽妽的性故事小说 | 国产精品岛国久久久久 | 日本无码免费久久久精品 | 色欲人妻AAAAAAA无码 | 韩国一卡二卡三卡四卡网站 | 干一干操一操 | 色网站在线播放 | 亚洲精品一区二区在线看片 | 俺也去网 | 黄色一区二区三区 | 影视AV久久久噜噜噜噜噜三级 | 国产乱妇无码大黄AA片 | 欧美性爽交A片大全 | 小蝌蚪APP丝瓜无限看下载 | 黑人与牛交ZOZOZO | 最近中文字幕完整版视频在线看 | 亚洲精品国产不卡在线观看 | 欧美成人h版整片合集 | 亚洲欧洲日产国码久在线 | 色综合久久久久久久久久久 | 污污在线网站 | 男人扒开女人腿桶免费视频 | 亚洲免费黄色网址 | 久久99热这里只有精品7 | 免费性网站 | 99精品久久精品一区二区小说 | 国产精品国产成人国产三级 | 天天躁日日躁狠狠躁AV麻豆 | 日韩永久免费视频 | 亚洲欧美中文日韩在线v日本 | 亚洲熟女乱色综合亚洲小说 | 97久久精品国产成人影院 | 毛片官网 | 国产精品视频久久久久久 | 一本色道久久爱88AV俺也去 | 亚洲啪 | 男人的天堂av2024在线 | 久久久久九九精品影院 | 小妖精朕受不了了高h | 自拍视频一区二区 | 精品午夜寂寞黄网站在线 | 亚洲国产中文在线二区三区免 | 精品视频 | 欧美肥老女人 | 日b免费视频| 亚洲国产一线二线三线 | 美女扒开腿让男人桶爽APP免费看 | 老司国产高清免费视频 | 一二三区乱码不卡手机版 | 国产乱码在线观看 | 97视频在线观看免费播放 | 日本波多野结衣在线观看 | 8090成年在线看片 | 国产二级一片内射视频播放 | 亚洲一级免费毛片 | 亚洲免费人成 久久 | 一本久道综合五月色婷 | 日本精品无人区卡1.卡2视野 | 久久久久久久久国产 | 婷婷五月色吧 | 丰满少妇内射一区 | 日韩一区二区三区免费体验 | 无码天堂亚洲国产AV久久 | 99re久久在热线播放最新地址 | 啊灬啊别停灬用力深视频 | 三级毛片黄色 | 天天色综合久久 | 亚洲精品久久久久久久蜜桃臀 | 在线日本中文字幕 | 日韩 高清 无码 人妻 | 黄污视频网站 | 自拍 亚洲 欧美 卡通 另类 | 日日摸夜夜添夜夜添A片图片 | 亚洲午夜久久久久久91 | 88永久华人免费 | 在线综合 亚洲 欧美 日韩 | 亚洲高清在线观看视频 | 国产人妻人伦AV又粗又一长 | 欧美亅性猛交内射 | 搡老女人老熟妇HHD 搡老熟女老女人一区二区 搡女人真爽免费视频大全 搡女人真爽免费视频网站 骚片AV蜜桃精品一区 | 欧美中文字幕视频 | 在线观看免费的小电影网站 | 亚洲中文字幕无码爆乳APP | 亚洲国产精品久久人人爱 | 亚洲色无色A片一区二区农夫山泉 | 福利姬视频在线观看 | 国精产品999永久中国有限公司 | 久久久久国产精品免费网站 | 日本理论片午午伦夜理片2021 | 日韩福利视频导航 | 国产乱来乱子视频 | 四虎影视最新的2024版地址 | 亚洲成色A片202477在线小说 | 亚洲精品AV午夜一区二区三区 | 日本亚欧热亚洲乱色视频 | 小雄的性生活 | 高清国产天堂在线BT免费 | 性欧美精品 | 国产高清精品国语特黄A片 国产寡妇性视频 | 国产精品亚洲精品久久久久 | 一二三区乱码不卡手机版 | 国产伦子系列沙发午睡 | 欧美精品在线一区二区三区 | 91精选视频 | 精品一卡2卡三卡4卡 | 青娱乐啪啪| 日本亚洲精品无码专区国产 | 无人区乱码区1卡2卡三卡在线 | 四房播播电影 | 九月丁香婷婷亚洲综合色 | 日本黄线在线播放免费观看 | 色妞AV永久一区二区国产AV开 | 国产精品成人无码A片免费软件 | 精品久久综合1区2区3区激情 | 女人色极品影院 | 国产精品色欲AV亚洲三区软件 | 久久精品午夜一区二区福利 | 中文字幕欧美日韩在线不卡 | 最近免费视频中文字幕2018完整版 | 国产一级一片免费播放i | 欧美成人免费观看久久 | 亚洲制服欧美自拍另类 | 40集电视剧全部免费 | 免费黄色一级 | 看黄色免费网站 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 日本三级中文字幕 | 亚洲一卡2卡3卡4卡乱码网站 | 免费又粗又硬进去好爽A片 免费又色又爽又黄的视频 免费中文字幕囯产在线网站 | 亚洲国产成人精品激情 | 日本女同在线 | 午夜性啪啪A片免费播放 | 手机上免费看twitch的加速器 | 黄色在线播放网址 | 日本免费黄色网 | 麻豆一区二区三区蜜桃免费 | 天天想夜夜操 | 亚洲欧美日韩中字视频三区 | 成人精品视频在线观看 | 国产免费福利在线视频 | 涩涩涩涩爱网站 | 中文天堂www资源 | 又大又硬又粗做大爽A片无册 | 蜜柚AV久久久久久久 | 狠狠狠狠干 | 看黄网址 | 亚洲一卡2卡三卡4卡 网站入口 | 色偷偷男人的天堂a v | 欧美极品欧美精品欧美视频 | 一级不卡毛片免费 | 亚洲国产精品一区二区第一页 | 甜涩性爱下载 | 欧美孕交videofree巨大 | 99久在线精品99re6视频 | 国产呦精品一区二区三区下载 | 五夜婷婷 | 国产精品久久久久久久人热 | 1024国产欧美日韩精品 | 一本免费视频 | 日本亚洲高清 | 久久精品国产清自在天天线 | 久久综合色一综合色88中文 | 日韩精选在线 | 国产人澡人澡澡澡人碰视频 | 日本中文字幕视频 | 国产偷窥熟妇高潮呻吟 | 最新欧美人妖hdxxxx | 91精品久久久久久久久久小网站 | 美女裸露胸部100%无遮挡 | v片免费看 | 又大又粗韩国色情A片绿色椅子 | 日本高清视频免费看 | 精品欧美一区二区3d动漫 | 婷婷五月色综合人妻 | 国产xx肥老妇视频奂费 | 再次出发 电影 | 日韩A片无码毛片免费看久久 | 91在线资源| 国产精品久久久久无码AV1 | v片在线看 | 狠狠色丁香婷婷综合久久来 | 天天综合网站 | 久久99国产精品久久99果冻传媒 | 在线亚洲免费 | 午夜福利试看120秒体验区 | 偷拍精品视频一区二区三区 | 日本 欧美 国产 | 国产偷人妻精品一区 | 欧美精品无码久久久 | 国产精品JIZZ在线观看A片 | 欧美日韩中文在线 | 插鸡网站在线播放免费观看 | 国产大片内射1区2区 | 一起探恋爱综艺在线观看第八期 | 亚洲入口无毒网址你懂的 | 成年A片免费体验区120秒 | 一级无毛片 | 天天谢天天干 | 51成人网| 日韩一级一欧美一级国产 | 亚洲精品久久久久高潮 | AV国産精品毛片一区二区 | 三男一女伦奷A片 | 亚洲国产成人综合精品 | 国产成人无码精品久久久最新A片 | 色在线免费观看 | 日本三级一区 | 国产一国产一级毛片古装 | 亚洲伊人色综合网色欲WWW | 大香网伊人久久综合网2020 | 网友自拍人妻偷拍wwwa7 | 日本午夜精品久久久无码 | 精品久久久无码人妻中文字幕边打电话 | 美女扒开胸罩露出奶头的图片 | 国产电影一曲二曲三曲图片 | 幻女FREE性ZOZO交喷水 | 公粗挺进了我的密道在线播放贝壳 | 日韩网红少妇无码视频香港 | 日本jizz强视频69视频 | 久久精品亚洲综合一品 | 边吃奶边狠狠躁日韩A片 | 亚洲日韩国产精品乱-久 | 中文天堂网在线www 中文色 | 日韩高清在线中文字带字幕 | 好男人www在线社区影院 | 天堂а√中文最新版地址 | 色情图插插插 | 女人18毛片a级毛片一区二区 | 99在线这精品视频 | 国产AV无遮挡喷水喷白浆小说 | 3d动漫一区 | 日韩一卡2卡3卡4卡乱码网站导航 | 深爱激情五月网 | ts人妖系列在线专区 | 尤物网站永久点击进入 | 成人H动漫AV无码无遮挡A片 | jiucao视频在线观看 | 樱花草视频在线观看免费高清WWW | 奇米777影视成人四色 | 攻强行往受屁股里放大东西 | 精品自拍视频在线观看 | 91精品国产亚一区二区三区 | 真实乱子伦小说 | 成人18免费网站 | 欧美一区中文字幕 | 98久久无码一区人妻A片蜜 | 天天操视频 夜夜 | 国产骚b| 国产又硬又粗进去好爽A片软件 | 日本高清免费一本在线观看 | 8x在线成人 | 日本精品中文字幕有码 | 亚洲精品免费在线 | 无码无遮挡成人A片 | 青青草视频app在线播放99 | 波多野结衣中文字幕在线播放 | 大陆毛片 | 98久久人妻少妇激情啪啪 | 免费激情网址 | www欧美| 亚洲精品无码成人A片在线漫画 | 美女干骚 | 九九九免费观看视频 | 色情污污污WWW网站下载 | 国产精品片211在线观看 | 肉蒲团dvd | 国产成人精品久久久久婷婷 | 国产精品大尺度尺度视频 | 日韩内射美女片在线观看网站 | 农村黄a三级三级三级 | 性一交一乱一交A片久 | 亚洲国产影院 | 成人精品AV一区二区三区网站 | 下身被黑人猛然进入 | 久久天天躁狠狠躁夜夜avapp | 无码国产精品一区二区色情男同 | 一个色综合久久 | 四虎影视免费大全 | 上课时男同桌狂揉我下面污文 | 欧美第八页 | 德永千奈美快播 | 久久就是精品 | 国产三级精品久久三级国专区 | 黄色a一片 | 国产精品黄色 | 亚洲丁香色婷婷综合欲色啪 | 国产成人AV三级在线影院 | 涩涩97| 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 波多野结衣在线不卡 | 91精品国产高清久久久久 | 麻豆人妻无码性色AV | 一级毛片美国aaj毛片 | 日韩丝袜亚洲国产欧美一区 | 在线观看免费网址大全 | brazzers欧美孕交 | 99久久99久久久精品久久 | 91天堂一区二区 | 波多野结衣xxxx性精品 | 国产伦精品一区二区三区免.费 | www.黄色在线观看 | 亚洲国产欧美日本视频 | 久久99久久精品久久久久久 | 亚洲精品无码一区二区三区仓井松 | 日本大片免费视频在线 | 亚洲一卡2卡3卡4卡国产网站 | 成人妇女免费播放久久久 | 亚洲另类激情综合偷自拍图 | 久草三级| 美女扒开胸罩露出奶头的图片 | 777影院理伦片片 | 欧美hdxxx| 国色天香社区在线最新 | 亚洲国产精品久久网午夜 | 隔壁人妻偷人BD中字 | 国产精品免费小视频 | 欧美日韩在线免费观看 | 久久草这里全是精品香蕉频线观 | 日本高清v| 女人下边被添全过程A片 | 免费精品美女久久久久久久久 | 国产成人禁片在线观看 | 国产男女猛烈无遮挡A片游戏 | 日本护士激情波多野结衣 | va视频| 亚洲熟女乱色综合亚洲图片 | 色欲AV亚洲午夜精品无码电影 | 毛片啪啪视频 | 無码一区中文字幕少妇熟女网站 | 忘忧草日本社区在线播放 | 狠狠色丁香婷综合久久 | 中文字幕亚洲第一页 | 无限看片的免费视频动漫 | 全部在线播放免费毛片 | 少妇性L交大片W | 亚洲国产系列久久精品99人人 | 免费观看一级欧美在线视频 | 韩国日本免费不卡在线丷 | 精品国产乱码久久久软件下载 | 麻豆国产精品AV色拍综合 | 国产亚洲精品久久久无码狼牙套 | 久久久久久久综合日本亚洲 | 色欲AV亚洲AV无码精品 | 在线成人精品国产区免费 | 被强行糟蹋的女人A片 | 日韩精品三级 | 在线观看中文字幕国产 | 最新精品国偷自产在线69 | 六月丁香在线观看 | 日韩亚洲精品无码一区二区 | 国产精品人妻一区二区高 | 亚洲天堂黄 | 毛片一区| 工口里番全彩无肉码3D啪啪 | 国产精选在线观看 | 国产AV国片偷人妻麻豆潘甜 | 日日弄| 亚洲 欧美 自拍 美腿 卡通 | 国产三级精品三级 | 无限观看社区在线观看免费 | 凹凸在线无码免费视频 | 超碰97人人做人人爱少妇 | 好涨太粗进去用力快好深 | 国产精品欧美亚洲韩国日本不卡 | 极品福利在线 | 一个人看的在线免费视频 | 免费黄色毛片视频 | 快播电影网站导航 | 丰满年轻岳欲乱中文字幕电视 | 99视频这里只有精品国产 | 天天操天天干天天摸 | 黑人外教啪啪中国女留学生 | 亚洲qingse中文字幕久久 | 99re6在线观看 | 秋霞在线观看视频一区二区三区 | 国精产品一品二品国精在线观看 | 亚洲午夜精品A片久久WWW慈禧 | 色综合综合色综合色综合 | 91福利在线视频 | 第章丰腴美妇岳服侍巨龙 | 国产精品一区二区AV白丝在线 | 黑人日亚洲女人 | 美国免费高清一级毛片 | 国产SUV精品一区二AV18款 | 成人福利热舞hd | 亚州老熟女A片AV色欲小说 | 99视频精品全部免费 在线 | 丁香六月综合网 | 成年必看视频在线观看 | 亚洲欧美视频 国内自拍 | 一级毛片免费播放视频 | 校园春色综合网 | 黄色片免费播放 | 岛国在线无码高清视频 | 伊人成人在线 | 欧美伦理片美亚电影网 | JIZZ老师护士 | 国产一卡三卡四卡无卡精品 | 久久久乱码精品亚洲日韩小说 | 久久国产精品伦理 | 国产一区二区精品尤物 | 成人18网址在线观看 | 视频一区二区三区欧美日韩 | 国产三级在线观看专区 | a级片大全| 9亚洲精华国产精华精华液 av大片 | 一个人免费看的视频www | 亚洲精品久久无码AV片银杏 | 国产又爽又黄无码无遮挡在线观看 | 99久久精品国产一区二区小说 | 国产精品人成在线播放新网站 | 日韩爽爽爽视频免费播放 | 国产精品久久久久久亚洲小说 | 韩国伦理片在线2018 | 老妇的两片 肉唇 翻进翻出 | 久久婷婷国产麻豆91天堂 | 国产精品99亚发布 | 鸥美毛片 | 中文字幕中文字幕在线 | 国产成人精品日本亚洲语言 | 久久久国产精品免费看 | 影音先锋中文字幕无码资源站 | 丁香五月综合缴情综合 | 国产毛片网 | 国产精品久久久亚洲第一牛牛 | 一级毛片在线看在线播放 | 毛片高清一区二区三区 | 天天射色综合 | 免费污污网站 | 手机看片国产在线 | BT天堂网在线WWW中文 | 香港理论| 国产成人精品亚洲2020 | 久久成年片色大黄全免费网站 | 久久人精品 | 97精品国产综合久久 | 偷拍自伦2018 | 国产美女无遮挡裸体毛片A片软件 | 免费网站日本永久免费观看 | 国精品日韩欧美一区二区三区 | 日韩大片免费看 | 精品樱空桃一区二区三区 | 日本视频一区二区三区 | 日本又色又爽又黄的A片在线电影 | 四虎综合九九色九九综合色 | 国产AV无遮挡喷水喷白浆小说 | 亚洲色精品一区二区三A片 亚洲三级无码经典三级 | 国产精品夜夜春夜夜爽久久小说 | 乱录目伦短篇小说 | 少妇人妻邻居做爰无码 | 在线看91 | 国产精品毛片在线完整版SAB | 2022国产精品自在线拍国产 | 久国产 | 娇妻被朋友玩得呻吟在线电影 | 国产一卡2卡3卡4卡精品 | 翁吻乳婷婷小玲21 | 久久久久久久国产精品毛片 | 福利视频一二三在线观看 | 日本成年一区久久综合 | 精品欧美一区二区三区四区 | 激情六月综合 | 啪一啪射一射2024 | 一级毛片免费观看不卡的 | 噜噜噜狠狠狠 | 99r精品视频 | 日韩一卡二卡三卡四卡免费观在线 | 伊人久久久综在合线久久在播 | 婷婷色婷婷 | 视频区 国产 图片区 小说区 | 伦理三级电影在线观看 | 国产精品久久久久无码人妻网站 | 国产亚洲精品久久久AI换脸区 | 国产三级级在线观看大学生 | 涩涩爱在线视频 | 99精品国产三级在线观看 | 第一福利视频 | 海角国精产品一区一区三区糖心 | porn在线视频一区二区 | 公交车上荫蒂添的好舒服的电影 | 国产老师开裆丝袜喷水漫画 | 日本一区二区三区免费更新不卡 | A片扒开双腿猛进入免费观 A片好大好紧好爽视频免费 | 同涩电影网 | 最近中文字幕免费视频 | 孙静雅1051p 44分钟 | 国产真实乱子伦新视频 | 视频一本大道香蕉久在线播放 | 一个人看的视频观看免费高清 | 最新国模无码国产在线视频 | 公交车上无耻挖阴 | 国产深夜福利视频在线 | 黑人与牛交ZOZOZO | 999国产高清在线精品 | 免费观看的成年网站推荐 | 亚洲综合色婷婷 | 亚洲成人777777| 国产亚洲一区二区麻豆 | 在教室伦流澡到高潮H女攻视频 | 免费欧三a大片 | 黄色在线网站 | 欧美日韩亚洲综合另类ac | 88av噜噜| 色天使色妺妺网站 | 免费看男人J放进女人J无遮掩 | 内射人妻无码色AB麻豆 | 4438成人情人网站 | 国产v综合v亚洲欧美大片 | 免费的中国黄网站大全 | 少妇特黄A片一区二区三区小说 | 亚洲色图迅雷高速 | 亚洲欧洲日韩国产一区二区三区 | 色婷婷一区二区三区四区成人网 | 伴郎粗大的内捧猛烈进出视频观看 | 99久久无码一区人妻A片竹菊 | 亚洲视频国产在线精品 | 第章丰腴美妇岳服侍巨龙 | 日本一卡二卡三四卡在线观看免费视频 | 日日噜噜夜夜狠狠视频 | 高清欧美性猛交xxxx黑人猛交 | 激情六月丁香婷婷四房播 | 日韩三级精品 | 啪啪东北老熟女45分钟 | 无码色情一区二区在线看 | 97精品国产高清在线看入口 | 国产乱码一区二区三区 | 国产精品久久久久国产A级 国产精品久久久AV久久久 | 极品美女久久久久久久久久久 | 精品国产自在现线拍一本 | 亚洲欧美日韩国产制服另类 | 美国伊人| 免费三级黄 | 91在线一区二区 | 国产亚洲精品成人AA片小说 | 最近中文字幕高清中文字幕网1 | 欧美孕交videofree巨大 | 无码国产精品一区二区色情男同 | 精品福利app导航 | 主播蜜汁丝袜精品自拍 | 亚洲欧美日本综合一区二区三区 | 欧美人妖乱hd | 亚洲小说电影偷拍在线观看 | 99国产精品国产精品 | 网色网站| 国产亚洲精品久久久久久老妇 | 亚洲欭美日韩颜射在线二 | 亚洲精品久久久午夜福利电影网 | 双性男生被老师摁着调教 | 亚洲精品乱码久久久久久日本麻豆 | 久久婷婷五月综合色精品首页 | 九一传媒果冻制片厂 | 91高清免费国产自产拍2021 | 欧美久久久久久 | 免费播放美女一级毛片 | 日本理论片和搜子同居的日子GOOD | 亚洲午夜精品A片久久W | 日本免费专区在线观看中破初 | 国产一二三四区在线观看 | 最新日韩中文字幕 | 99热久久国产精品这里有 | 成年人黄色在线观看 | 99热久| 日本a级片免费 | 色噜噜噜色噜噜噜色琪琪 | 午夜精品在线 | 在线观看成人片韩剧 | 欧美又粗又大XXXX无码 | 国产3级在线 | 国产高清自拍视频 | 美女祼胸图片 | 日本三级韩国三级香港三级a级 | 国产一区二区中文字幕 | 91福利视频合集 | 又粗又硬女人免费视频 | 囯精品人妻无码一区二区三区99 | 成人黄网大全在线观看 | 亚洲AV久久无码精品影视 | 五月丁香合缴情网 | 国产欧美日韩三级 | 色偷偷WWW.8888在线观看 | 视色视频 | 满天星电影在线观看完整免费 | 国产免费看插插插视频 | 无码欧美毛片一区二区三 | 天天做天天爽天天谢 | 波多野结衣教师中文字幕 | 天天摸夜夜添夜夜添A片小说 | 动漫成年美女黄漫网站 | 不卡高清AV手机在线观看 | 亚洲一码二码三码精华液 | 丁香五六月婷婷 | JIZZJIZZ日本护士水多多小说 | 国产精品自拍亚洲 | 黄乱色伦 | jizzjizzjizz亚洲女 | 中文字幕在线最新在线不卡 | 隔壁人妻偷人BD中字 | 欧美一级成人 | 新版天堂资源中文在线 | 韩国久久精品 | 成人在免费观看视频国产 | 成人福利免费观看体验区 | 亚洲午夜久久 | 欧美久久久无码精品亚洲日韩小说 | 国产精品人妻在线观看 | 亚洲AV无码A片一区二区三区 | 高清电影在线 | 免费观看一级欧美在线视频 | 成年片人免费www | 3d动漫精品一区视频在线观看 | 日本高清精品 | 日韩一二区色情高清清视频 | 最新发布页ccyycom草草影院 | 4k电影网| 三级色网站 | 91精品国产免费青青碰在线观看 | 91香蕉视频在线看 | 日韩无码在钱中文字幕在钱视频 | 午夜视频网址 | 中文字幕亚洲综合小综合在线 | 伊人大相蕉在线看青青 | 日韩高清在线中文字带字幕 | 2020国产成人久久精品 | 亚洲国产午夜精品乱码 | 日本精品一区二区在线播放 | 韩三级日本三级日本 | 日韩一卡2卡3卡4卡乱码网站导航 | 九九热久久只有精品2 | 亚洲欧美一区二区三区久久 | 欧美多人三级级视频播放 | 天天噜天天干 | 日本国产精品无码字幕在线观看 | 五月丁香合缴情在线看 | 上课时男同桌狂揉我下面污文 | 国产精品久久久无码A片小说 | 亚洲欧洲日本在线 | 曰本道人妻丰满AV久久 | 就爱外挂网 | 久久这里只精品99百度 | 精选国产AV精选一区二区三区 | 黄色资源在线观看 | 亚洲一区二区女搞男 | 丁香综合缴情六月婷婷 | 久久久无码精品国产人妻 | 久久精品熟女亚州AV麻豆 | 精品人妻一区二区A片 | 亚洲香蕉视频综合在线 | 精品视频在线观看你懂的一区 | 黄色国产在线 | 久久久毛片免费全部播放 | 乱码一卡二卡新区永久入口 | 午夜福利影院私人爽 | 久久国产露脸老熟女熟69 | 丁香花色情成人网站 | 久久99中文字幕伊人 | 亚洲无码一区二区 | 人妻无码AV系列久久电影 | 日韩精品免费一区二区三区 | 一级做a爱过程免费观看 | 天美在线观看 | 欧美性受xxxx黑人xyx性爽 | 午夜精品久久久久久毛片 | 日韩视频精品在线 | 婷婷成人综合 | 中文字幕亚洲综合小综合在线 | 色-情-伦-理一区二区三区 | jizz韩国 | 亚洲欧美日韩中文综合v日本 | 国产精品沙发午睡系列990531 | 六月婷婷激情综合 | 亚洲人成www在线播放 | 欧美日韩日本国产 | 奇米影视20247久久精品人人爽 | 成版抖音富二代 | goldenear| 人妻体内射精一区二区三四 | h网站免费观看 | 欧美日韩在线视频免费完整 | 国产亚洲精品久久久久久无码网站 | 国产成人18黄网站在线观看网站 |