午夜福利总站-午夜国产-午夜国产爆乳-午夜国产传媒-午夜国产大片-午夜国产福利片-午夜国产福利在线-午夜国产精品福利-午夜国产精品视频-午夜国产理伦

lazer

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

kaos

12 Oct 2025(atualizado 12/10/2025 às 02h45)

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

Temas

Compartilhe

BBCcom_Content_Index_for_October_1_2023.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 lotofácil 2444 resultadoits 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

_Kryvyi_Rih_Analysing_Russian_strike_on_Ukraine_hotel.txt

BBCcom_Content_Index_for_October_1_2021.txt conhecimento e os entretenimento lazer.

GRáFICOS

nos eixos

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

BBCcom_Content_Index_for_October_23_2020.txt ponto quente e os conhecimento abrangente.

Navegue por temas

BBCcom_Content_Index_for_October_19_2020.txt BBCcom_Content_Index_for_October_26_2024.txt BBCcom_Content_Index_for_October_19_2024.txt BBCcom_Content_Index_for_October_1_2017.txt BBCcom_Content_Index_for_October_27_2023.txt BBCcom_Content_Index_for_October_23_2018.txt BBCcom_Content_Index_for_October_17_2022.txt BBCcom_Content_Index_for_October_22_2019.txt BBCcom_Content_Index_for_October_16_2023.txt BBCcom_Content_Index_for_October_27_2020.txt
日韩卡1卡2 卡三卡2021老狼 | 综合伊人 | 日本成人久久 | 无码日本电影一区二区网站 | 国产精品人妻一区二区三区四 | 红色av社区 | 日韩欧美激情兽交 | 国产不卡在线 | 扒开粉嫩小泬把舌头伸进去添视频 | 欧美性受xxxx白人性爽 | 国产人A片777777久久 | 99热在线观看精品 | 中日韩一卡二卡三卡四卡在线观看 | 中国三级网站 | 国产亚洲精品久久精品6 | 五月婷婷丁香六月 | 色毛片免费看 | 久久亚洲国产最新网站 | 美女内射视频WWW网站午夜 | 国产欧美精品系列在线播放 | 理在线 | 一区二区三区四区国产 | 三级日本高清完整版热播 | 诱受H嗯啊巨肉 | 午夜成人影视神马 | 在线欧美中文字幕农村电影 | 中文字幕 在线观看 | 品色堂永久 | 在线观看免费情网站大全 | 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 | 伊人激情AV一区二区三区 | 天堂网2016 | 国产精品久久久久久久久久 | 明星xxxx hd videos | 免费在线看黄的网站 | 久久日本精品在线热 | 男女阳茎牲交32动态图片免费 | 久久精品国产一区 | 美女午夜色视频在线观看 | 国产乱对白刺激视频 | 国产不卡视频一区二区三区 | 亚洲精品国产综合99久久一区 | 五月天婷色 | 欧美一级夜夜爽 | 中文字幕高清在线中文字幕 | 婷婷激情视频 | 亚洲国产第一区二区三区 | 24小时更新视频在线观看免费 | 亚瑟在线视频免费视频观看 | 三个馊子伦着玩小说冫 | 国产精品一区二区亚瑟不卡 | 日本免费无码A专区在线观看 | 国产亲妺妺乱的性视频播放 | 九九视频精品36线视频在线观看 | 日韩精品AV一区二区三区 | 亚洲色无码A片一区二区红樱 | 在线看片中文字幕 | 亚洲熟女片嫩草影院 | 天天射天天干天天色 | 女的毛片毛片毛毛片毛毛毛毛片 | 亚洲熟伦熟女新五十路熟妇 | 亚洲区激情区图片小说区 | 五月 色 | 性欧美高清videosex | 成人在线你懂的 | 色综合欧美 | 激情综合丝袜美女一区二区 | 国产欧美日韩一区二区赛车 | 一级女性全黄久久生活片免费 | 无限看片的动漫视频在线观看 | 偷拍自怕亚洲在线第7页 | 别插我B嗯啊视频免费 | 日产国产欧美韩国在线 | 综合自拍亚洲综合图区Av | 草草影院w37 | aaa一区二区三区 | 夜夜噜2024最新 | 国产成人精品综合网站 | 成人一区视频 | 欧美流行 在线播放 | 国产网友自拍视频 | 97超碰免费人妻中文 | 最近中文字幕免费完整版2019 | 桃子视频直播高清在线 | 国产精品久久久久久久久免费hd | 国内精品久久久久久久小说 | 免费国产a国产片高清不卡 免费观看一级欧美在线视频 | 与女乱小说目录伦下载 | 成人高清| 久久人妻AV一区二区软件 | 国产SUV精品一区二区四区三区 | 亚州巨乳成人片 | 欧美精品18videosex性欧 | 高清黄色一级片 | 美女大乳图片 | 色噜噜狠狠狠狠色综合久一 | 成年视频xxxxx在线网站 | 黄色三级视屏 | 蜜桃97ai | 全部免费a级毛片 | 国产成人久久精品AV | 国产精品美女免费视频观看 | 国产在线播放一区二区 | 无码做爰在线观看 | 中国少妇VIDEOS露脸HD | 波多野结衣在线免费 | 日韩欧美激情 | 成人影院网 | 日本youjizz| 新97在线超级碰碰免费视频 | 香蕉黄网 | 一圾片在线观看 | a级国产视频 | 少妇系列之白嫩人妻 | 久久精品一区二区 | 美女性爽视频国产免费 | 成人综合亚洲欧美一区h | 日本12一14eenxxxxtv| 果冻传媒和91制片厂a | 999插插插| 理论片午午伦夜理片I | 在线观看特色大片免费网站 | 欲盖弄潮快播 | 小泽玛利亚 bt | 丰满人妻无码AV系列 | 国产超高清麻豆精品传媒麻豆精品 | 婷婷五月久久精品国产亚洲 | 欧美一级日韩一级 | 精品一卡2卡三卡4卡免费乱码 | 亚洲欧洲日韩国产一区二区三区 | 一二三四日本中文在线 | 精品AV国产一区二区三区四区 | 亚洲A片永久精品无码APP | 奇米网久久 | 疯狂撞击美妇雪白的大肉臀 | 青草视频.com | 国产伦孑沙发午休精品 | 久久天天躁狠狠躁夜夜avapp | 久久奇米| 精品无码日本蜜桃麻豆走秀 | 狠狠的撸2014最新版 | 九九九热精品 | 最近日本韩国高清免费观看 | jizz中国日本| 久久久人精午夜精国 | 深夜爽爽动态图无遮无挡 | 小说区 综合区 首页 | 亚洲自拍另类 | 亚洲 欧洲 日韩 综合色天使 | 99热精品在线av播放 | 99在线在线视频免费视频观看 | 国产精品色情国产三级小说 | 一道精品视频一区二区三区男同 | 嫩草国产福利视频一区二区 | 免费被黄动漫网站在线无网观看 | 三级理论中文字幕在线播放 | 国产91精品高清一区二区三区 | 午夜视频福利在线观看 | 国色天香中文字幕视频 | 国产精品人妻一区夜夜爱 | 狠狠色影院 | 亚洲视频日韩 | 色吧成人网| 国产精品禁18久久久夂久 | 蜜桃臀AV高潮无码 | 中文字幕精品在线观看 | 麻豆文化传媒网站入口 | 三级黄色片在线观看 | www.最色 | brazzers在线观看 | 二级黄绝大片中国免费视频 | 日本漫画之吃奶乳漫画 | 夜夜噜2024最新 | 国产99网站| 久草免费福利资源站在线观看 | 99国精产品一二三区 | 久久国产成人精品 | 国产在线一区观看 | 亚洲 第一区 欧美 日韩 | 精品夜夜澡人妻无码AV蜜桃 | 久久久久久综合对白国产 | 亚洲欧美中文字幕高清在线 | 精品国产人妻一区二区三区免费 | 扒开双腿被两个男人玩弄 | 欧美视频在线播放bbxxx | 午夜影院一区 | 香蕉久久国产AV一区二区 | 色哟哟网站在线观看入口 | xxx粗大长欧美 | 777奇米色| 日本免费一二三区中文 | 最近中文免费字幕在线播放 | 欧美亚洲精品真实在线 | 狠狠的日 | 99热黄色| 国产又爽又刺激的视频 | 国产精品A久久久久久久久 国产精品AV国片偷人妻麻豆 | a级片在线观看 | 精品人伦一区二区三区潘金莲 | 日本精品国产 | 无码人妻丰满熟妇A片护士电影 | 久久影院精品 | 嗯宝贝叫的再浪一点 | 天堂网在线观看 | 影音先锋av电影 | 一日本道不卡高清a无码 | 古风一女N男到处做高H | 免费看成人www的网站软件 | 国产日韩精品视频 | 美女祼体添鸡把图片 | 99re5在线精品视频热线 | 亚洲AV无码专区国产精品麻豆 | 午夜亚洲 | jizzjizz丝袜老师| www.五月天 | 黄色成人在线视频 | 宝贝把内衣脱了我想吃胸 | 波多野结衣综合 | 亚洲情色 快播 | 精品蜜臀AV在线天堂 | 欧美黑人添添高潮A片WWW | 我要看WWW免费看插插视频 | 日本精品人妻无码202477 | 亚洲精品一区二区三区无码A片 | 国产手机在线亚洲精品观看 | 农村黄a三级三级三级 | 亚洲精品在线观看91 | 欧美bbxxx | 成熟妇女A片高潮免费看 | 色偷拍亚洲国产大姐 | 久久精品国产99国产精品免费看 | 在线观看免费a∨网站 | 日本免费三级网站 | 国产精品久久久久久日本一道 | xxxxxbbbbb欧美性极品 | 狠狠的撸2014最新版 | 国产成人免费福利网站 | 污污网站免费下载入 | 欧美日本一道道一区二区三 | 久久黄色毛片 | 色费色情人成视频 | 综合图片亚洲综合网站 | 亚洲色图日韩 | 999久久久成人A片精品免费看 | 欧美亚洲国产日韩一区二区三区 | 一本一道日韩一二三四区免费 | 婷婷久久综合九色综合伊人色 | 色网址大全123 亚洲 | 国产一级精品视频 | 在线永久免费观看黄网站 | 狼狼色丁香久久女婷婷综合 | av在线观看网站 | 天美传媒国产今日推荐 | 国产在线观看清码视频 | 婷婷在线视频 | 国产乱码人妻一区二区三区四区 | 中国国产一级毛片 | 最新国产成人盗摄精品视频 | 韩国漂亮老师做爰BD | 免费看欧美日韩一区二区三区 | 日本红怡院亚洲红怡院最新 | 久久国产三级精品 | 日韩亚洲欧洲在线rrrr片 | 老司机午夜精品视频在线观看免费 | 亚洲AV久久无码精品九九小说 | 澳门永久av免费网站 | 日韩免费中文字幕 | 亚洲欧美日韩中文在线制服 | 成年A片免费体验区120秒 | 日本不卡在线一区二区三区视频 | 卯月麻衣快播 | 色情欧美片午夜国产特黄 | 开心四房播播网 | 日韩黄色在线 | 先锋影音av资源站av | av亚洲国产小电影 | 亚洲伦理久久 | 一级毛片全部免 | 2020年国产精品 | 第一次破處在线国语视频播放 | 五月天 丁香 | 亚洲精品日本 | 青青草久草视频 | 色欲AV亚洲情无码AV蜜桃 | 亚洲精品久久久久久不卡精品小说 | 肉多NP 巨H公交车情欲 | 美女18禁永久免费观看网站 | 日本亚洲精品久久蜜臀 | 俺也来俺也去俺也射 | 免费三级黄 | 蜜桃视频极品免费观看 | 国产不卡a | 2021国产精品视频一区 | 欧美熟妇无码XXXXXX | aa级毛片毛片免费观看久 | 免费网站色 | 在线观看免费高清电影网站 | 综合激情区视频一区视频二区 | 波多野衣结在线精品二区 | 亚洲欧美久久久久久久久久爽 | 中文字幕不卡免费视频 | 久久曹| 翁公的巨物挺进了我密 | 欧美内射深喉中文字幕 | 泷泽萝拉qvod快播 | 国产一级特黄aa毛片 | 欧美日韩免费一区高清 | 国产AV无码熟妇人妻麻豆 | 亚洲午夜精品久久久久久抢 | 精品自拍农村熟女少妇图片 | 激情综合五月天丁香婷婷 | 毛片基地美国 | 在线看播放免费网站 | 最新无码国产在线视频9299 | 亚洲欧洲一二三区 | 国产成人一区二区三区别 | 亚洲伊人色综合网色欲WWW | 亚洲欧美日韩精品久久 | 日本久久高清一区二区三区毛片 | 樱花草视频在线观看社区WWW | 国产亚洲精品久久久久久移动网络 | 灌满抽搐合不拢双性HBL | 亚洲精品久久7777777 | 国产精品美女免费视频观看 | 91香蕉国产线观看免 | www.91久久| 日韩人妻无码精品系列 | 国产啪在线 | 性一交一乱一交A片久久 | 公交车上荫蒂添的好舒服口述小说 | 狠狠色噜噜狠狠狠狠98 | 日本精品国产 | 成人天堂婷婷青青视频在线观看 | jizzjizzjizz亚洲 | 色呦呦网站 | 亚婷婷洲AV久久蜜臀无码 | www.色网| 精品中字一卡2卡三卡4卡乱码 | 日韩精品专区在线影院重磅 | 性吧 校园春色 | 99久久免费精品 | 国产毛多水多高潮高清 | 精品亚洲一区二区三区在线播放 | 黄网在线观看视频 | 日本韩无专砖码高清 | 成人影视大全 | 久久免费观看国产精品 | 九九这里有精品 | 一级毛片视频 | 夜色贵族图片 | 国产精品久久人妻无码网站一区L | 欧美第一网站 | 大尺度一级毛片波多野结衣 | 香蕉成人伊视频在线观看 | 国产一卡2卡3卡4卡无卡免费视频 | 黄色三级视频在线观看 | 欧美一区视频 | 四川妇女BBBWBBBWM | 国产老师开裆丝袜喷水漫画 | 黄色网页在线观看 | 亚洲精品久久久久久久久无码精品 | 香蕉久久夜色精品国产 | 男女阳茎牲交32动态图片免费 | 色琪琪久久综合网天天 | 夜夜操夜夜爽 | 白浊怀孕H白浊总受男男H | 亚洲免费一 | 色综合久 | 国产二级一片内射视频插放 | 毛片在线不卡 | 免费看的久久久久 | 日韩国产人妻一区二区三区 | 国产全黄a一级毛片视频 | 日韩欧美一区二区不卡 | 久久天天婷婷五月俺也去 | 一区二区三区线日本 | 日本一本二本三区无码 | 干一干操一操 | 91青青国产在线观看免费 | 久久综合九色综合桃花 | 无限观看社区在线观看免费 | 亚洲三级在线中文字幕 | 97精品久久久久中文字幕 | 麻豆自制传媒 国产之光黄 麻豆在视频线 | 丰满五十老女人性视频 | 久久国产精品99久久久久久牛牛 | 在线精品国产三级 | 国产成人AV一区二区在线观看 | 青青草免费国产线观720 | 欧美又大又粗又湿A片 | 无套内射无矿码免费看黄 | 人妻熟女少妇一区二区三区 | 加勒比精品 | 国产AV亚洲精品久久久久 | av免费无码天堂在线 | 2024最新国产不卡a国内2024 | 毛片新网址 | 日韩一区二区视频 | 免费看的黄网站 | 国产高清不卡一区二区三区 | 中文字幕熟女人妻伦伦在线 | 五月天婷婷在线视频国产在线 | 欧美精品高清无码 | 国产精品一区二区 尿失禁 国产精品一区二555 | 国产成人精品综合在线观看 | 波多野结衣一二区 | 色哟哟在线网站 | 欧美亚洲精品真实在线 | 日日艹夜夜艹 | 天天爽夜爽免费精品视频 | 天天做夜夜做久久做狠狠 | 免费中文字幕在线 | 永久免费精品精品永久-夜色 | 婷婷我也去俺也去狠狠爱 | 一区二区三区好的精华液杨朝越 | 九一国产精品 | 精品免费看一区二区三区A片 | 最新本道高清无码av | 精品视频在线观看 | 免费看成人频视在线视频 | 毛片基地免费视频a | 91久久亚洲最新一本 | 一人看片WWW在线视频 | 国产精品日韩欧美一区二区三区 | 久久www免费人成精品香蕉 | 中文字幕欧美一区 | 内射丰满高大五十五岁熟女 | 蜜臀91 | 免费公开视频人人人人人人人 | 国产又爽又大又黄A片另类 国产又爽又大又黄A片软件 | 色125综合 | 日本特爽特黄特刺激大片 | 欧美片免费观看网址 | 欧美无人区码卡二卡3卡2022 | 九九九色情成人免费网 | 午夜视频91 | 色噜噜噜AV亚洲男人的天堂 | 天堂岛资源www | 色狠狠色综合吹潮 | 精品国产中文字幕在线视频 | 亚洲精品爆乳一区二区H | 国产精品久久久久影院色 | 欧美va天堂va视频va在线 | 亚洲一级毛片免费观看 | 成人久久18免费软件 | 97色情在线观看免费高清 | 国产在线观看清码视频 | 91久久国产口精品久久久久 | free chinese国产 | 色综合视频一区二区观看 | 天天干天天插天天 | 国产美女视频免费观看的网站 | 亚洲区色情区激情区小说 | 国产三级精品三级在线观看 | 日本成熟少妇高潮A片 | 色情的人妻味道BD完整版 | 不卡视频一区二区 | 亚洲综合色五月久久婷婷 | 精品国产乱码久久久软件下载 | 国产AV一区二区三区人妻 | 亚洲va在线va天堂成人 | 欧美XXXXX高潮喷水麻豆 | 韩国免费看 | 亚洲视频影院 | 久伊人 | 国产成人在线播放 | 最近免费更新中文在线观看 | 免费三级黄 | 免费毛片a在线观看67194 | 中国chinese自拍old | 亚洲丁香婷婷综合久久小说 | 狠狠色丁香婷婷综合尤物 | 国产乱码精品一区二区三上 | 野香蕉99香蕉 | 国内自拍网| 台湾十八成人 | 国产又粗又黄又爽的A片精华 | 国产一级视频久久 | 777奇米四色 | 天天综合视频网 | 三级国产短视频在线观看 | 无码人妻精品一区二区蜜桃色 | 国产婷婷亚洲999精品小说 | 99re最新视频 | 日本三级免费 | 亚洲 图片 另类 综合 小说 | 黄网13 | 撕开胸罩胸奶头玩大胸动态图片 | 人人爽人妻精品A片二区 | 韩国jizz| 太粗啦太硬了受不了 | 一个人看的视频在线观看高清 | 性一乱一交一A片.看A片 | 97制片厂爱豆传媒视频 | 蜜桃AV麻豆AV果冻传媒 | 国产一区二区视频免费 | 宅男在线永久免费观看 | 福利网址| 最近中文字幕完整视频下载 | 美女毛毛片| AV夜夜躁狠狠躁日日躁 | 久久免费区一区二区三波多野 | 黑人与亚洲女人 | 欧美日韩国产另类一区二区三区 | 国产人妻人伦精品1国产盗摄 | 黄色三级网址 | 最近免费字幕高清在线观看 | 久久丫精品忘忧草西安品 | 亚洲激情图片网 | 成人无码A片在线观看 | 亚洲一区二区三区乱码在线欧洲 | 精品久久久麻豆国产精品 | 中文字幕不卡一区二区 | 欧美一线高本道高清免费 | 亚洲熟女乱色综合一区 | 色偷偷国色天香在线观看免费视频 | 麻豆免费国产福利视频 | 黄色在线免费 | 日本午夜视频在线观看 | 国产一国产一级毛片视频 | 偷拍亚洲网友图片区 | 廖承宇野外3P1069 | 午夜精品久久久内射近拍高清 | 午夜成年人网站 | 毛片不卡一区二区三区 | 麻豆国产传媒18精品A片 | 夜插插 | 88av在线视频| 色偷偷AV亚洲男人的天堂 | 亚洲欧美日韩中文字幕久久 | 午夜激情在线观看 | 国产午精品午夜福利757视频播放 | 天天夜夜啦啦啦 | 被两个同桌绑起来玩乳动态gif | 免费观看黄页网站 | 国产精选自拍 | 久久毛片免费看一区二区三区 | 日本精品无码久久久久三级国产 | 99久久免费精品国产免费高清 | 668美妞论坛 | 特级毛片在线大全免费播放 | 北京熟妇搡BBBB搡BBBB | 国产精品色婷婷在线观看 | 大叔爱上我视频在线观看 | 成人 在线 视频自拍 | 两根巨龙在她腿间同时进出 | 免费国产直接看片av | 美女裸体黄网站18禁免费看影站 | 一本色道久久综合一区 | 少妇人妻邻居做爰无码 | 不卡国产00高中生在线视频 | 99久久国内精品成人免费 | 国产一级免费在线观看 | 麻豆自媒体 一区 SWAG | 美女视频黄的全是免费 | 永久免费观看的黄网站 | 国产又黄又猛又粗又爽的A片 | 阿v天堂2024在无码免费 | 久久久这里只有免费精品2018 | 美女视频黄的全是免费 | 色视频下载 | 亚洲A片不卡无码久久 | 最近中文字幕免费视频 | 国产成人一区二区三区在线观看 | 亚洲欧美制服丝袜一区二区三区 | 伊人久久久久久久久久 | 91精品日韩| 嗯好湿用力的啊c进来动态图 | 最新露脸国产精品视频 | 色猫咪AV在线网址 | 日韩成人三级 | 无人视频在线观看免费播放下载 | 性色做爰片在线观看WW | 色偷偷狠狠色综合网 | 国产一区日韩二区欧美三区 | 四虎影视4HU最新地址在线 | 亚洲一级黄色片 | 欧美阿v高清资源在钱 | 性欧美xxxx | 欧美成人大色情大片破碎的拥抱 | 我就是要当着他的面做你 | 美女大尺度裸体写真 | 日产一卡二卡乱码免费 | 成都影院免费高清完整版 | 猛烈顶弄H禁欲老师双性年下 | 永久免费观看美女视频 | 成都影院手机在线观看 | 特级毛片片A片AAAAAA | 爽爽爽无码AV在线观看 | 色情无码视频7788 | 色情AV亚洲精品一区二区 | 欧美成年免费a级 | 亚洲一卡2卡3卡4卡5卡乱码 | 亚洲人成www在线播放 | 成年在线观看免费高清完整版视频 | 天天干天天色天天 | 日韩不卡高清 | 五月婷婷开心深深爱 | 欧美三级电影网 | 色噜噜狠狠大色综合 | 欧美69久成人做爰视频 | 娇妻被朋友玩得呻吟在线电影 | 韩国三级日本三级在线观看 | 欧美视频在线观看视频 | 福利视频入口 | 一卡二卡卡四卡免费高清欢迎您 | 久久国产欧美日韩精品免费 | 综合区亚一洲线观看免费 | 亚洲国产欧洲精品路线久久 | 久见久热 这里只有精品 | 四房色播开心网 | 欧美激情精品久久久久久久 | 一个人看的www视频高清免费 | 波多野结衣资源在线 | 91在线视频一区 | 国精产品999永久中国有限 | 精品久久伦理中文字幕 | 日本在线观看一级高清片 | 99re 久久这里只有精品6 | 幸福到万家电视剧在线观看 | 成人区人妻精品一区二欧美毛片 | 国产男女猛烈无遮挡A片漫画 | 一集片在线观看 | 日本高清色情高清免费 | 国产黄网永久免费 | 中日韩毛片 | 中文字幕人成乱码中文乱码 | 黄色的网站免费看 | 极品福利在线 | 亚洲AV久久综合无码东京 | 国产一区二区三区影院 | 日日噜噜爽爽狠狠视频 | 美果tv免费在线观看电视剧 | 亚洲欧美精品 | 午夜在线视频网站 | 亚洲影院一区 | 国产免费人妻一区二区三区 | 麻豆久久久9性大片 | 91人人爱 | 亚洲欧美精品无码一区二在线 | 香蕉AV亚洲精品一区二区 | 日本高清在线观看视频 | WWW九九九毛片无码一区二区 | 久久九九免费看少妇高潮A片 | 三级韩国2019在线现看 | 日本A级作爱片金瓶双艳 | 九九99在线视频 | 美女强奷到抽搐在线播放 | 黄视频网站观看 | 91免费国产精品 | 学生妹被爆插到高潮无遮挡 | 天天操视频 夜夜 | 欧美亚洲精品真实在线 | 嗯好湿用力的啊c进来动态图 | 韩国三级欧美三级国产三级 | 免费精品一区二区三区A片在线 | 曰本熟妇乱妇色A片在线 | 人丿澡八人碰人人f人看下载 | 青草视频在线观看免费视频 | 欧美一级久久久久久久久大 | 日韩精品无码A片一二三区 日韩精品无码二三区A片 | 日韩特黄特色大片免费视频 | 视频二区日韩 | 亚洲AV无码一区二区三区牛牛 | 窝窝午夜视频 | 小视频免费观看在线 | 亚洲在线国产日韩欧美 | 婷婷夜夜躁天天躁人人躁 | 久久99麻豆婷婷AV1区2区 | 亚洲资源在线观看 | 久久久久久国产精品免费免费 | 97超视频在线观看 | 卡一卡二卡三专区免费 | 亚洲精品国产国语 | 免费毛片基地 | 成人A片产无码免费奶头小说 | 波多野结衣一区二区三区88 | 18禁无遮挡羞羞动漫视频免费 | 一本一道波多野结衣一区二区 | 高清av电影 | 亚洲第一天堂WWW网站 | 四房开心色播 | 久久精品夜夜春 | 国产成人福利在线视频下载 | 免费国产久久啪在线 | 麻豆AV传媒在线播放免费观看 | 色情视现频免费观看 | 亚洲巨乳巨臀在线一区二区BBW | 天天干天天综合 | 么么哒电影大全免费观看 | 伊人22综合网 | 亚洲AV电影天堂男人的天堂 | 国产初高中生露脸在线播放 | 无限看片的动漫视频在线观看 | 稲森丽奈 | AV一区AV久久AV无码 | 7M精品福利视频导航 | 国产精品天天狠天天看 | 国产精品无码AV天天爽色欲 | 五月丁香合缴情在线看 | 国产熟妇搡BBBB搡BB七区 | 国内精品伊人久久久久 | 天天干夜夜骑 | 国产精品20247人妻精品冫 | 一级一级女人18毛片 | 秋霞电影网伦大理电影在线观看 | 麻豆国产精品久久人妻 | 日本v片免费一区二区三区 日本v片 | 国产熟妇BBWBBWBBW歼尸 | 国产欧洲野花视频WWW | 在线涩涩免费观看国产精品 | 最近免费更新中文在线观看 | 国色天香精品一卡二卡三卡四卡 | 爱婷婷网站在线观看 | 欧美丰满极品少妇无码 | 成人a毛片免费视频观看 | 91制片厂果冻传媒首页 | 欧美精品无码一二三区网站 | 高清一区二区三区 | 91po国产在线高清福利 | 影音先锋a色情av资源 | 国产真人性做爰视频免费40分钟 | 翁公的粗大挺进我的密道 | 51国偷自产一区二区三区 | 日韩在线观看精品 | 99蜜桃臀久久久欧美精品网站 | 99久久精品免费看国产漫画 | 日韩精品免费一区二区三区 | 三级黄色视频 | 国产成人精品18 | 女人下边被添全过程A片 | 玖玖精品视频在线 | 日本中文字幕在线视频站 | 国产精品V无码A片在线看 | 九九九99品牌的特色产品 | 妓出阁 | 公车疯狂揉肉蒂高潮H失禁动态图 | 奇米777狠狠色噜噜狠狠狠 | 国产高清日韩 | 国产卡二区三卡乱码 | 91福利视频免费观看 | 视频区国产亚洲.欧美 | 天天干天天澡 | 人妻熟女一区二区AV | 亚洲18在线天美 | 国产在线播放一区二区 | 欧美色图天堂网 | 五月综合激情久久婷婷 | 亚洲精品AAA揭晓 | 中文字幕一区在线观看视频 | 欧美3p精品三区 | 国产中文字幕在线 | 妞色网 | 国产偷抇久久精品A片蜜臀A | 成人欧美一区二区三区白人 | 粗大的内捧猛烈进出A片小说 | 琪琪电影午夜理论片YY6080 | 日本不卡一区二区三区 | 综合色久| 黄色操视频 | 扬名立万在线观看 | 亚洲第一免费播放区 | 欧美成 人 网 站 免费 | 网站黄色在线观看 | 婷婷在线免费观看 | 国产精品久久久久不卡绿巨人 | 精品 在线 视频 亚洲 | tube8动漫naruto教师 | 91av欧美| 在线欧美日韩制服国产 | 百性阁综合另类 | 窝窝在线视频 | 国产对白精品刺激一区二区 | 2020国产精品久久久久 | 无人区乱码区1卡2卡三卡在线 | 99r在线 | 国精品人妻无码一区二区三区软件 | 午夜激情爱爱 | 成年女人免费看一级人体片 | 国产午夜精品一区二区不卡 | 一级二级毛片 | 欧美日韩亚洲国产欧美电影 | 又大又粗又爽免费视频A片 又大又爽又硬的曰皮视频 又大又硬又粗再深一点 | 亚洲AV久久无码精品夜夜挺 | 国产欧美另类久久久精品免费 | 国产精品久久久爽爽爽麻豆色哟哟 | 中央工作组赴宜春督导锂矿开采 | 99久久久久国产精品免费 | 教官脔到她哭H粗话H好爽视频 | 欧美手机手机在线视频一区 | 亚洲学生妹高清AV | 人人干97 | jizz中国日本 | 免费国产黄网站在线观看可以下载 | 九九久久亚洲综合久久久 | 亚洲伊人色综合网站 | 欧美精品亚洲精品日韩 | 欧美 日韩 综合 无码 专区 | 在线永久看片免费的视频 |