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

hbzfp

13 Oct 2025(atualizado 13/10/2025 às 00h06)

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

Temas

Compartilhe

Gaelic_Games_-_latest_GAA_news_results_and_fixtures_-_BBC_Sport.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 jogos de turna carroits 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

'No one had the slightest idea what the book was about' Why The Great Gatsby is the world's most misunderstood novel.txt

Graham Linehan tells court trans activists made his life 'hell'.txt ponto quente e os enciclopédia moda.

GRáFICOS

nos eixos

Your_pictures_on_the_theme_of_monochrome_.txt

From_nepo_kids_to_PM_resignation_How_the_Nepal_protests_unfolded.txt ponto quente e os explorar moda.

Navegue por temas

Glaciers_-_BBC_News.txt Golf - Latest Scores, News, Videos & Results - BBC Sport.txt Future_tour_dates_Details_of_forthcoming_international_series_-_BBC_Sport.txt Graham Linehan goes on trial over alleged harassment of trans woman.txt Gold_jaguars_and_a_rainforest_in_peril_Trekking_Costa_Ricas_wildest_trails.txt Gentle_gracious_living_Laura_Ashley_and_how_the_prairie_homemaker_lifestyle_took_hold.txt Germany_-_BBC_News.txt Gatsby_and_the_Kardashians_The_missing_link.txt Gogledd-Orllewin_Y_newyddion_a_straeon_diweddaraf_BBC_Cymru_Fyw.txt Government unable to calculate Afghan data breach cost, watchdog says.txt
国产91精品新入口 | 男主开会桌下被C得合不拢H | 黄 色 免 费 网站在线观看 | 傲慢与偏见电影下载 | 日韩在线观看视频免费 | 国产强伦姧人妻电影 | 肥老熟妇伦子伦456视频 | 久久精品人妻无码一区二区三区网 | 亚洲日韩视频 | 国产熟妇的荡欲午夜视频 | 91国偷自产一区二区三区蜜臀 | 中文字幕一级片 | 精品1区2区3区产品乱码 | 伦理片2488电影伦理片 | 乖女H文纯肉芊芊 | 国产农村熟妇出轨VIDEOS | 先锋影音男人av资源 | 国产AV精品一区二区三区小说 | 精品人妻无码一区二区三区手机版 | 免费看黄在线网站 | 99国精产品品质溯源网 | 欧美一卡2卡三卡4卡公司 | 国产片免费看 | 香蕉乱码成人久久天堂爱免费 | 色偷偷AV老熟女色欲涩爱 | 秋霞影音先锋一区二区 | 91精品国产亚一区二区三区 | 国精产品888 | 少妇性BBB搡BBB爽爽爽 | 久久久大香菇 | 男插女爽到内射的视频 | 日韩精品1 | 韩国三级日本三级香港三级 | 国产精品久久久久久久久久98 | AV天堂午夜精品一区二区三区 | 国内外成人色情视频 | 免费三级网址 | 亚洲国内精品自在线影院牛牛 | 免费精品国产人妻国语麻豆 | 色偷偷免费 | 最近最新中文字幕高清免费 | 污污的网站免费在线观看 | 天美麻豆| 国产一区二区不卡亚洲涩情 | 国产福利资源 | 成人毛片18岁女人毛片免费看 | 亚洲免费视频在线 | 刺激性A片欧美激情免费 | 久久精品7 | 2019精品国产品在线18年 | 亚洲精品久久一区二区三区四区 | 亚洲精品久久久午夜福利电影网 | 新妺妺窝人体色WWW 性xxxxbbbb免费播放视频 | 国精品人妻无码一区二区三区性色 | 99视频精品国产免费观看 | 2024四虎永久在线观看 | 3至13呦女毛片 | 99九九99九九九视频精品 | 伊人亚洲AV久久无码精品 | 欧美手机手机在线视频一区 | 欧美三级真做在线观看 | 久草在在线免在线观看视频 | 青草视频免费在线观看 | 国产欧美精品一区二区三区-老狼 | 国产专区_爽死2024 | 日本a在线视频 | 日本A级作爱片金瓶双艳 | 性欧美VIDEOFREE高清精品 | 日韩精品第1页 | 夜夜撸.com | 久久久综合中文字幕久久 | 波多野结衣亚洲一区二区三区 | 99re在线免费视频 | 大陆精品福利网址导航在线 | 抱着娇妻让朋友一起弄 | 欧美视频中文字幕 | 2022亚洲男人天堂 | 国内自拍第一页 | a一级毛片视频免费看 | 老司机午夜精品网站在线观看 | 真人做爰片免费观看播放 | jizz国产| 国产精品小说 | 水蜜桃视频下载方法 | 东京道一本热中文字幕 | 粉嫩AV久久一区二区三区 | 波多野结衣免费免费视频一区 | 久久久久久久久久久久福利 | 国产欧美精品三区 | 九九热久久只有精品2 | 双性受高H公车地铁公交 | 在线不卡日本v二区 | 四虎综合| 成年免费大片黄在线观看岛国 | 国产麻豆精品乱码一区 | 欧美成a人片免费看久久 | 91激情| 么公一夜我要我八次 | 天天舔天天插 | 最近中文字幕高清中文字幕1 | 亚洲精品久久久久久久久久久 | 欧美很很干 | 亚洲天天做日日做天天看2018 | 人人爱免费在线观看 | 一区二区三区A片无码视频不卡 | 国产人人看| 狠狠干2022| 久久国产精品人妻无码 | 青青久在线视频免费观看 | 97精品国产高清在线看入口 | 国产色情一区二区不卡毛片 | 日韩欧美在线观看 | 97亚洲狠狠色综合久久位 | 亚洲人成日本在线观看 | 好看的网站 你懂的 | 91香蕉成人 | 小小拗女一区二区三区 | 欧美一级在线看 | 九九视频免费观看 | 99re在线视频 | 超碰97人人无马 | 三级毛片在线播放 | 国产人妖在线 | 日韩在线电影大全免费观看 | 午夜手机福利 | 都市激情综合网 | 一级视频在线观看 | 亚洲国产熟妇无码一区二区69 | 免费播放黄色 | 成 人 网 站 免费观看 | 一区二区三区 日韩 | 天天操天天操天天射 | 草莓.combo2.1深夜释放自己污在线观看 | 国产极品粉嫩交性大片 | 天天插日日胔夜夜干 | 国产精品色吧国产精品 | 久久精品人妻无码一区二区三区盗 | 久久久A片精品一区二区 | 色网站观看 | 小婉和小娇243 | 日韩亚洲欧美中文在线 | 97视频资源站| 精尽人亡乱肉合集乱500小说 | 在线视频精品免费 | 国产探花在线精品一区二区 | 老湿69 | 亚洲精品久久无码AV片亚洲 | 快穿被各种男主强好爽H | 日日夜夜精品视频 | 亚洲AV无码乱码A片无码蜜桃 | 国产大片资源中文字幕 | 国产色秀视频 | 婷停五月深爱五月 | 日韩国产精品视频 | 翁公半夜吃我下面 | 分享一个无毒不卡免费国产 | 日本理伦片午夜理伦片 | 91精品国产综合久久久久 | 日韩电影免费在线观看中文字幕 | 在线播放一区 | 国精产品一二二区传媒有哪些 | 亚洲AV无码男男A片在线观看 | 日本妇人成熟A片一区-老狼 | www精品久久| 大尺度做爰啪啪床戏男人小说 | 8848hh四虎| 国产又色又爽又黄又免费 | 亚洲AV怡红院AV男人的天堂 | 中文字幕永久免费视频 | 中文字幕在线观看亚洲视频 | 亚洲A片V一区二区三区有声 | 亚洲色大成网站WWW永久在线观看 | 日韩精品你懂的在线播放 | 拔插拔插永久免费 | 最新在线观看精品国产福利片 | 日本一道一区二区免费看 | 最近高清中文在线字幕在线观看1 | 国产不卡高清在线观看视频 | 特级做A爰片久久毛片A片国 | 国产精品免费大片一区二区 | 中文字幕无限乱码不卡2021 | 亚洲午夜未满十八勿入 | 欧美一区二区在线免费观看 | 成人欧美日韩视频一区 | 性欧美黑人 | 色中色最新域名 | 蝴蝶谷成人 | 久久久精品2020免费观看 | 国产一区二区精品视频 | 国产污视频| 国产精品99久久久久久AV小说 | 午夜免费无码福利视频麻豆 | 亚洲伊人久久精品 | 千涩网 | 在线观看国产亚洲视频免费 | 成人亚洲A片V一区二区三区日本 | 在线观看成人网 | 久久大香伊蕉在人线国产昨爱 | 日本高清色本免费现在观看 | 国产精品原创永久在线观看 | 中文字幕在线视频网 | 九月丁香婷婷亚洲综合色 | 在线小视频国产 | 色婷婷国产熟妇人妻露脸AV | 噼里啪啦影院大全 | 国产美女被爽到高潮激情免费A片 | 海角国精产品一区一区三区糖心 | 日韩一级视频 | 四虎官方影库首页 | 污污网站免费下载入 | z o oz o o人与猪| 亚洲综合久久成人A片红豆 亚洲综合激情小说 | 超清中文乱码字幕在线观看 | 一级片中文字幕 | 天天干天操 | 欧美又粗又大又爽又色A片 欧美又粗又黄又硬的A片 | 黑人巨茎大战白人美女 | 国产精品国产三级国产在线观看 | 伊人久久精品AV一区二区 | 成人亚洲精品久久久久软件 | 四房婷婷| 成年女人色毛片免费看 | 四虎国产精品永久一区高清 | 日韩国产三级 | 欧美XXXXX俄罗斯乱妇 | a国产视频| 亚洲一级特黄特黄的大片 | 亚洲午夜精品A片久久W | 亚洲精品久久久无码AV片软件 | 我把我的肥岳日出水来多少集 | 亚洲国产熟妇无码一区二区 | 亚洲A片无码一区二区三区在线 | 国产精品久久欧美久久一区 | 亚洲国产在线资源网 | 爱色影音播放器下载 | 公和我做爽死我了A片口述 公交车上无耻挖阴 | 午夜成人亚洲理伦片在线观看 | 一区三区在线专区在线 | 国产精品久久久久无码人妻精品 | 李宗瑞性侵照片全集 | 亚洲精品免费日日日夜夜夜夜 | 久久伊人一区二区三区四区 | 毛篇片在线观看地址 | 色鬼综合 | 一级a级毛片 | 野花社区WWW三 | jiizzyou欧美 | 久久综合亚洲精品一区二区 | 日本无码黄人妻一区二区 | 九九九精品午夜在线观看 | 日本精品一区二区三区无码 | 亚洲精华国产精华精华液网站 | 少妇VIDES裸体BBWWHD | 久久精品视频免费 | 一本久道久久综合久久鬼色 | 欧美一卡二卡三卡四卡免ios | 99视频精品国产免费观看 | 粗大挺进朋友人妻身体里电影 | 91制片厂制作果冻传媒所有 | caoporm免费视频公开 | 奇米网久久 | 色撸橹图片2015最新版 | 欧美三级色 | 精品久久久久久久久久 | 中文字幕动漫精品专区 | 国产一区电影 | 国产精品久久久久久 | 一本久道久久综合婷婷五月 | 免费的又色又爽又黄的视频软件 | 翁公的巨物挺进了我密 | 亚洲性无码AV久久成人 | 帮mm解脱内衣 | 久久人妻精品国产一区二区 | 影音先锋男人在线资源资源网 | 24小时更新视频在线观看免费 | 欧美午夜视频在线观看 | 国产精品久久久久久久久动漫 | 打屁股gay | 美女露出尿口让男人揉动态图网站 | 国产精品国产三级国产专 | 精品无码一区二区三区不卡 | 小污女导航福利入口 | 毛片A级毛片免费观看品善网 | sss色视频 | 一本大道道香蕉a | 手机在线亚洲国产精品 | 边吃奶边狠狠躁日韩A片 | 狠狠综合久久综合鬼色 | 色综合色综合色综合网址 | 最新黄色在线 | 色秀视频免费网站在线观看 | 国产卡一卡二卡3卡4乱码 | 国精产品一品二品国精在线观看 | 青草香蕉视频 | 男男挤奶油进去PLAY高污 | 在线视频播放免费网站视频在线 | 老司机午夜精品视频观看 | 91情侣在线精品国产免费 | 最近最新中文字幕免费的一页 | 免费论理电影 | 四房播播网| 久久久久久久综合狠狠综合 | 成人在线视频免费观看 | 91一区二区午夜免费福利网站 | 天天操天天搞 | 欧美精品一区二区蜜臀亚洲 | 欧美大陆日韩一区二区三区 | 除却巫山在线 | 中文有码人妻字幕在线 | 国产又大又粗又硬的A片 | 国产妇少水多毛多高潮A片小说 | 网站可以免费观看 | 免费无码无遮挡永久色情聊天下载 | 日本视频免费高清一本18 | 国产做A爰片毛片A片美国 | 91传媒蜜桃香蕉在线观看 | 曰本人做爰大片免费观看一 | 亚洲free| 国产成人禁片在线观看 | 在线精品视频免费观看 | 亚洲欧美综合在线中文 | 四虎影视四虎在钱免费 | 99re国产精品视频首页 | 亚洲最大成人网色 | 在线播放周妍希国产精品 | 强睡年轻的女老板2中文电影 | 国产色精品久久人妻无码看 | 久操手机在线视频 | av撸色| 99爱视频免费高清在线观看 | 亚洲欧洲一区二区三区在线观看 | 一本久久综合亚洲鲁鲁五月天 | 亚洲午夜久久久无码精品网红A片 | 清扫魔 | 国产AV一区二区三区日韩 | 国产精品三级在线观看 | 久操社区| 少妇饥渴无码高潮A片爽爽小说 | 亚洲午夜无码久久久久蜜臀av | 亚洲国产传媒色情AV | 伊人蕉久75影院在线播放 | 经典三级一区二区三区视频 | 午夜操操| 成人黄色在线网站 | 天书中文网| 性色AV爽歪歪啪啪A片 | 国产色精品久久人妻无码看片软件 | 美味三姐妹在线观看 | 在线看免费毛片 | 成年日韩片av在线网站 | 一区二区三区日韩免费播放 | 浪潮AV色综合久久天堂 | 五月婷婷六月丁香激情 | 香蕉人人精品 | 五月丁香合缴情在线看 | 日韩成人A片一区二区三区 日韩艹 | 国产午夜精品视频在线播放 | 日韩欧美一区二区三区视频 | 婷婷丁香社区 | 亚洲福利影视 | 中文字幕日本一区 | 国产成人精品免费视频动漫 | www.日本高清视频.com | Jjzjizjizjiz日本老师水多 | 久久免费看少妇高潮A片JA | 国产一级视频在线观看网站 | 日韩色在线高清无码 | 免费一级a毛片 | 午夜福利免费视频921000电影 | 欧美一级久久久久久久大 | 狠狠ri| 国产又粗又猛又黄又爽A片 国产又粗又猛又爽又黄A片 | 老司机午夜免费福利 | av淘宝 在线观看 | 欧美AAAAAABBBBB | 久久丫精品忘忧草西安品 | 波多野吉衣在线观看 | 2020国自产拍精品天天更新 | 欧美三级在线视频 | 天天曰天天干天天操 | 国产麻豆视频免费观看 | 精品国产乱码久久久久久软件大全 | 黄A无码片内射无码视频 | 人妻不敢呻吟被中出A片视频 | 久久久久久久国产精品影院 | 亚洲欧美中文日韩在线v日本 | 在线 亚洲 欧美 | 午夜精品久久久久久久久日韩欧美 | 99国精产品一区二区三区A片 | 日本韩国亚洲欧美在线 | 2018天天拍拍天天爽视频 | 国产精品99精品无码视亚 | 国产色欲一区二区精品久久呦 | 午夜你懂的| 插的好爽视频 | 久久久久国产午夜 | 年轻丰满的继牳5伦A片 | 五月天丁香激情 | 日韩美一区二区 | 亚洲黄毛片 | 日韩精品在线观看免费 | 色情无码永久免费视频网站APP | 国产AV人人妻人人爽 | 国产高潮抽搐在线观看 | 日韩精品亚洲专在线电影 | 色噜噜狠狠色综无码久久合欧美 | 国产一级高清 | 成人国产精品免费软件 | 男人的天堂中文字幕熟女人妻 | 日韩亚洲欧美中文高清在线 | 日日摸夜添夜夜夜添高潮 | 成人网18免费下 | 3d肉蒲团观看地址 | 亚洲A片一区日韩精品无码 亚洲H成年动漫在线观看不卡 | 嫩交18xxxx | 免费的成人电影 | 欧美69视频 | 欧美日韩国产另类一区二区三区 | 天天碰免费视频 | 欧日韩无套内射变态 | 狠狠色丁香婷综合久久 | 中字幕视频在线永久在线 | 国内精品久久影院 | 日本强伦姧人妻无码视频 | 91插插插网站 | 最好看的2018国语在线 | 久久精品国产精品亚洲蜜月 | 久久96国产精品久久久 | 成全免费高清观看在线 | 色综合久久98天天综合 | 欧美在线看视频 | 艳妇臀荡乳欲伦交换在线播放 | 午夜在线观看网站 | 午夜你懂的 | 最近中文字幕在线视频1 | 久久国产精品免费网站 | 国产亚洲精品久久综合阿香 | 2022国产精品网站在线播放 | 亚洲AV久久无码精品影视 | 国产精品爽黄69天堂A片 | 国产成人精品综合 | 免费aⅴ在线 | 一个人看的视频看免费 | 国产成人精品电影 | 毛片毛片 是个 毛片 | 亚州春色 | 色就色 综合偷拍区欧美 | 四房播播看 | 一级黄色片免费的 | 韩国视频在线观看高h | 亚洲风情无码免费视频 | 伦理电影网址 | 福利网址在线观看 | 亚洲精品国产综合AV在线观看 | 俺来也网站 | 日韩性做爰免费A片AA片 | 性做爰添lBB视频免费下载 | 高清中文字幕视频在线播 | 一级特黄aa大片欧美网站 | 日本一本在线播放 | 国产a级精品特黄毛片 | 永久黄网站色视频免费 | 无遮挡18禁羞羞视频免费动漫 | 桃子视频在线高清免费观看 | 精品久久一区二区三区 | 婷婷综合 | 麻豆文化传媒一区二区 | 一级黄色免费观看 | 99re国产 | 国产一级一片免费播放刺激 | 99精品视频在线免费观看 | 精品国产午夜福利在线观看 | 最近高清中文在线国语视频 | 夂久亚州精华国产精华华液 | 欧美精品3atv一区二区三区 | 青草视频网址 | 999伊人 | 久久草在线视频国产一 | 亚洲人成网亚洲欧洲无码 | 久久综合综合久久97色 | 久久这里只有精品无码3D | 久久综合狠狠综合久久97色 | 无码人妻精品国产婷婷 | 丁香花视频资源在线观看 | 波多野结衣国产一区二区三区 | 欧美精品久久久久久无码人妻 | 亚洲欧美强伦一区二区另类 | 国产福利萌白酱在线观看网站 | 亚洲瑟瑟网 | 久久久国产99久久国产一 | 六月丁香 五月婷婷小说 | 以你的名字呼唤我 | 91精品国产手机在线版 | 国产A国产国产片 | 中文天堂在线观看 | 校园 在线 亚洲 都市 | 天堂网在线www资源网 | 日韩黄色大全 | 欧美三级真做在线观看 | 精品无码一区二区三区蜜桃 | 成品人和精品人的在线观看 | 久久夜色精品国产飘飘 | 天天操夜夜草 | 免费看黄色一级片 | 色哟哟网站在线观看入口 | 欧美一区二区在线免费观看 | 97国产精东麻豆人妻电影 | 日产乱码一二三四五 | 狠狠干狠狠干狠狠干 | 青丝影院免费看 | 91久久香蕉国产线看观看软件 | 国产一级精品视频 | 久久久久久久岛国免费播放 | 水蜜桃亚洲一二三四在线 | 日韩色情无免费高清在线视频 | 苏伊士运河堵物价涨 | 97蜜桃小说及图片 | 美国三圾片在线观看 | 日本熟妇无码波多野1223 | 欧洲无人区码SUV | 校园刺激全黄H全肉细节文 校园激情人妻古典武侠 | 91精品国产高清久久久久久 | 色涩色| 亚洲精品国产一区二区三 | 欧美亚洲国产日韩一区二区三区 | 中国特级毛片 | 日本高清色情高清免费 | 麻豆XXXXXX在线观看 | 91高清免费国产自产拍2021 | 一道本二区视频不卡 | 老师家里没人你用点力视频 | 一个人看的在线www高清视频 | 苍井空视频线免费观看 | 国产精品第一国产综合精品99 | 最新在线伦费观看中文 | 日本不卡三级 | 免费成人毛片 | 中文字幕精品AV一区二区五区 | 伊人大查蕉亚洲 | 99re在线视频观看 | WWW亚洲色大成网络.COM | 女主播直播大尺度视频获刑 | 又大又硬又粗做大爽A片无册 | 任你搞视频这里只有精品 | 国产精品人妻一区二区三区四 | 国产午夜小视频 | 亚洲午夜精品久久久久 | 色网络 | 国产人碰人摸人爱免费视频 | 亚洲无人区在线观看AV | 香蕉AV久久一区二区三区 | 亚洲国产成人久久一区久久 | 三女一男做二2爱A片 | 日本高清色情高清免费 | 好想被狂躁A片免费无码 | 福利视频导航大全 | 精品欧美中国福利第一导航 | 亚洲图片欧美在线97色色 | 国产GV无码A片在线观看 | 国产精品第1页在线观看 | 国产无人区一卡2卡三卡4卡仙 | 狠狠色噜噜狠狠狠狠色吗综合 | 校园黄乱色伦短篇小说 | 日本xxxbbb0oo | 日韩精品专区 | 教官嗯给我快添嗯哪啊视频 | 五月天激情婷婷 | 欧美91av| 天天躁夜夜 | 黄色网址大全免费 | 丁香色狠狠色综合久久小说 | 午夜福利32集云播 | 色情A片激情无码色情 | 国产悠悠视频在线播放 | 中文字幕欧美一区 | 久久久久久国产精品三级 | 工口里番外番全彩无遮挡 | 久色视频网 | 天堂w| 国产一级视频免费 | 色网在线观看 | 在线天堂网 | 亚洲精品国偷拍自产在线观看蜜臀 | 狠狠狠色丁香婷婷综合久久88 | 最新版天堂资源官网 | 在线观看黄的网站 | 天天干夜夜草 | 乱亲H女秽乱常伦强强和苹苹 | 国产成人久久精品二区三区 | 谁有三级网站 | 免费看又色又爽又黄的国产 | 91在线中文字幕 | 99玖玖爱视频在线观看 | 久久有精品 | 亚洲精品久久久久一区二区 | 三级毛片黄色 | 国产亚洲精品在浅麻豆 | 免费看一区无码无A片WWW | 狠狠爱在线影院 | 国产精品人人妻人色五月 | 天天操夜夜操天天操 | 久久成人国产精品一区二区 | 亚洲一级毛片免费在线观看 | 国产青草| 骚宝宝把我夹射好不好?年上 | 欧美变态味孕交 | 又紧又大又爽精品一区二区 | 日本精品人妻无码77777 | 在线视频精品免费观看10 | 国产精品久久久久久福利 | 国产在线观看91精品 | 日韩不卡免费视频 | 久久久久国产一级毛片高清板 | 夜夜躁日日躁狠狠久久 | 免费A片国产毛A片无码久久 | 欧美高清视频在线高清观看 | 国产成人久久婷婷精品流白浆 | 国产三级日本三级美三级 | 地狱天堂2019完整版免费观看 | 午夜婷婷一夜七次郎 | 色五月在线视频 | 99国产亚洲精品久久久久久 | 亚洲伊人成色综合网 | 把娇妻借给朋友泄欲4 | 亚洲精品少妇一区二区 | 日韩性插| 黄网免费| 黄色日本网站 | 水蜜桃视频在线播放下载 | 色婷婷激情 | 久久66热人妻偷产国产 | 毛片导航 | 日本高清在线看片免费视频 | 亚洲精品一区久久久久久 | 免费做爰猛烈吃奶摸视频在线观看 | 欧美亚洲丝袜 | 欧美亚洲国产一区二区 | 黄色三级毛片 | 国产91精品高清一区二区三区 | 丰满少妇69激情啪啪无码 | 日韩成人av在线 | 国产大片黄在线观看 | 国产日韩亚洲精品视频 | 韩国和日本免费不卡在线V 韩国精品AV一区二区三区 | 亚洲图片偷拍图自拍97 | 最好的免费电影网站 | 久久欧美人人做人人爱 | 熟女人妻的味道 | 久久久久国产午夜 | 成人性大片免费观看网站YY | 韩国日本伦理片 | 欧美亚洲熟妇一区二区三区 | 亚洲第一页乱 | 一级毛片成人免费看a | 日本免费一区视频 | 狠狠操夜夜操 | 成人午夜精品视频在线观看 | 久久aa毛片免费播放嗯啊 | 少妇P毛又多又黑A片免费 | 日韩免费高清视频 | 精品福利视频导航 | 韩国一卡二卡三卡四卡网站 | japanese大战黑人 | 特级做A爰片久久毛片A片喷水 | 性欧美精品久久久久久久 | 亚州巨乳成人片 | 国产熟妇另类久久久久 | 国产国语特级一级aa毛片 | 图片区乱熟图片区小说 | 快穿之情欲尺度H | 麻豆精品一区二正一三区 | 日韩免费看 | 麻豆视传媒免费版 | 91老肥熟| 麻豆一二三区AV传媒 | 亚洲色无码A片一区二区麻豆 | 无码激情做A爰片毛片A片日本 | 亚洲国产成人久久精品图片 | 在线观看高清电影 | 亚洲精品v欧美精品动漫精品 | 亚洲精品欧美精品日韩精品 | 亚洲免费影院 | 国产精品久久久久9999小说 | 黄色网免费看 | 视频一区国产 | 色爱区综合激情五月综合色 | 让杜雅尔丹 | 外国成人网 | 国产欧美精品一区二区色综合 | 亚洲精品蜜桃久久久久久 | 在教室伦流澡到高潮H强圩动漫 | 蜜臀国产一区二区三区无码A片 | 国产精品99久久久久久AV小说 | 亚州国产 | 特黄做愛又硬又大A片视频 特级 毛片 | 亚洲αv久久久噜噜噜噜噜 亚洲xxx视频 | 污污的漫画小说羞羞漫画 | 老湿机免费体十分钟 | 国产免费av片在线观看 | 少妇把腿扒开让我爽爽视频 | 羞羞答答APP安装以后在手机哪里 | 色吧网| 四虎影视永久无码精品 | 人人插人人费 | 久热精品在线视频 | 中文字幕免费视频 | 国产成人影院在线观看 | 欧美一卡2卡三卡4卡公司 | 黄色视屏在线免费观看 | 黑人巨茎大战俄罗斯白人美女 | 全球成人网 | 久草一区 | 97qingse | 国产精品色吧国产精品 | 日本加勒比在线精品视频 | 中文字幕亚洲无线码 | 国产亚洲精品资源在线26u | 国产人妻人伦精品98 | 97精品国产福利一区二区三区 | 日韩你懂得 | 永久免费精品视频 | 最近免费中文字幕大全免费版视频 | 亚洲久悠悠色悠在线播放 | 免费毛片软件 | 高辣H文黄暴糙汉文H文 | 国产孰妇精品AV片国产m3u8 | 欧美国产中文在线字幕视频 | 久久国产免费观看 | 国产在线视频一区二区不卡 | 成年人黄色片网站 | 影音先锋男人资源 站 | 韩国无删减| 日本无码人妻丰满熟妇5G影院 | 久久亚洲精品玖玖玖玖 | 小小水蜜桃视频高清在线观看1 | 中文字幕在线免费 | 撸撸撸网| 中文字幕第| 狠狠色狠狠色综合日日91app | 精品国产国产精2020久久日 | 日本在线视频www鲁啊鲁 | 狠狠躁日日躁夜夜躁A片 | 亚洲精品久久久久久无码AV | 全肉高黄高h的小说推荐 | 亚洲午夜无码毛片AV久久久久久 | 成人免费观看网欧美片 | 精品国产人妻一区二区三级 | 91色欧美| 国产精品51麻豆CM传媒 | 国产成人综合精品 | 内衣秀无打底露了毛 | 波多野结衣在线播放 | 蜜臀AV国产精品久久久久 | 久久6免费视频 | 免费精品一区二区三区在线观看 | 日本免费视频费观看在线 | 波多野结衣中文在线播放 | 美女露3点 | 九色综合伊人久久富二代 | 日韩美女免费线视频 | 欧美在线观看一区二区三 | 狂野欧美性猛交xxxx免费 | 亚洲一区二区观看播放 | 一夲道人妻熟女AV网站 | 巨乳水多后入抽插 | 亚洲国产精品无码AAA片 | 在线网站 | 日产无码AV在线观看 | 午夜男女爽爽羞羞影院在线观看 | 亚洲免费一级视频 | 日韩夜夜操 | 免费大片国产在线观看下载 | 免费观看情趣v视频网站 | 日韩内射美女片在线观看网站 | 开心四间房色五天 | 人人看人人| 大陆人妻熟妇多毛A片 | 成人国产色情无码永久免费软件 | 色天使最新网址 | 伊人大蕉综合网站亚洲最大 | 快播人人看电影网 | 日本一卡二卡3卡四卡免费 日本一卡二卡三卡四卡免费观 | 草莓.combo2.1深夜释放自己污在线观看 | 欧美一级特黄aaaaaa在线看首页 | 国产精品久久久久久久久免费 | 三级在线观看中文字幕完整版 | caoporn免费在线视频 | 无码精品一区二区三区在线A片 | 日本内射精品一区二区视频 | 日韩欧美国产中文字幕 | 国产精品色情一区二区三区 | 漂亮的保姆7日本在线播放 漂亮人妻被公日日躁国产 漂亮人妻洗澡被公强欧美精品无码 | 国产在线精品一区二区 | 欧美性猛交AAAA片黑人 | 三级欧美日韩 | 满了好涨嗯不要了nphhh | 日本视频一区在线观看免费 | 欧美精品网址 | 91资源在线视频 |