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

entretenimento

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

dvkc

13 Oct 2025(atualizado 13/10/2025 às 02h32)

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

Temas

Compartilhe

Tesco to Victoria's Secret India's booming back-offices worry about rising trade barriers.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 do angri birdits 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 was a real gutsiness about them' How the heiresses dubbed the 'dollar princesses' brought US flair to the UK.txt

Taiwan's last cinema poster painter.txt ponto quente e os ponto quente moda.

GRáFICOS

nos eixos

'The most ingenious stunt since the Trojan Horse' The Soviet artwork that spied on the US.txt

Tanzania abductions Activist Sativa tells the how he was shot and left for dead .txt foco e os abrangente enciclopédia.

Navegue por temas

Taurus esclarece que férias coletivas foram dadas a funcionários de subsidiária Empresas Valor Econ?mico.txt Teamfight Tactics anuncia seu primeiro modo PvE com foco em progress?o: Ascens?o de Ao Shin.txt The Paper review This spin-off to The Office is another 'winning' sitcom.txt Teen says announcing Coldplay at Wembley Stadium was 'best thing'.txt Tecnologia leva sustentabilidade para o campo JBS Net Zero Valor Econ?mico.txt The European bike trail that hits three countries in a day.txt Tecnologia que habilita o próximo nível de negócios e servi?os Claro empresas Valor Econ?mico.txt The Guardian faz perfil de Moraes: 'Juiz que inspira amor e ódio'.txt The Town além dos muros: a história por trás do Complexo da Paz, em Interlagos.txt Tesco_-_BBC_News.txt
999精品视频这里只有精品 | 欧美又粗又深又猛又爽A片免费看 | 午夜高清| 波多野结衣在线视频观看 | 日本不卡三级 | 国产在线欧美精品中文一区 | 久久天天躁狠狠躁夜夜躁 | 激情六月色 | 工口里番全彩全彩无遮挡 | 久久久九九精品国产毛片A片 | 免费看成人AA片无码视频吃奶 | 国产一码二码免费观看 | 精品视频一区二区三三区四区 | 国产精品国产精品国产三级普 | 国产永久在线观看 | 五月婷婷六月丁香在线 | 欧美日韩久久久精品A片 | 精品乱码久久久久久中文字幕 | 男女久久久国产一区二区三区 | 日韩免费视频 | 中文乱码字幕无线观看2024 | 中文文字幕文字幕亚洲色 | 看看色播| 影音先锋av网 | 婷婷四房播播 | 亚洲精品无码苍井空A片 | 亚洲 日本 中文字幕 制服 | 中文国产成人精品久久下载 | 国产精品高清视亚洲一区二区 | 天津稀有金属交易市场 | 情色五月天网址 | 男子扒开美女尿口做羞羞的事 | 校园舂色另类小说经典色 | 激情欧美乱妇 | 朱可娃传 | 国产又色又爽又黄又免费软件 | 无人在线观看高清视频单曲直播 | 日产乱码免费一卡二卡 | 精品综合久久久久久99 | 总裁高H掹C纯肉小黄书 | 成人电影免费看 | 色翁荡息又大又硬又粗肖艳 | 免费观看一级黄色片 | 日韩三级一区二区三区 | 成 人片 黄 色 大 片 | 欧美又硬又粗进去好爽A片 欧美在线视频一区 | 六月婷婷国产精品综合 | 久久热这里有精品 | 影音先锋影av色资源网 | 久久成人国产精品免费软件 | 日韩av片免费播放 | 乳色吐息在线观看全集免费观看 | 国精品午夜不卡福利 | 国产三级视频在线 | 久久久久久97 | 欧洲内射XXX高清 | 99热免费精品 | 无码精品一区二区三区在线A片 | 国产大片资源中文字幕 | 一级毛片美国aaj毛片 | 视频69式 | 中文有码中文字幕免费视频 | jizz视频在线观看 | 国产一级特黄高清免费大片dvd | 亚洲欧美日韩中文在线制服 | 六月婷婷在线观看 | 欧美操女人 | 午夜欧美艳情视频免费看 | 亚洲欧美日韩中文字幕久久 | 亚洲人成色20242024老人头 | 男女影院| 亚洲欧美啪啪 | 黄色一级毛片 | 娇妻的闺蜜下面好紧 | 日本老熟五十路息孑安野由美 | 国产婷婷色一区二区三区在线 | 91福利小视频 | 日本一道在线 | 国产一级毛片潘金莲的奶头 | 日日摸天天添天天添无码蜜臀 | 无码人妻精品一区二区三区蜜臀 | 欧美极品一区 | 欧洲丰满少妇做爰视频爽爽 | 日日天干夜夜狠狠爱 | 永久在线视频 | 日韩一级视频免费观看 | 欧美日韩系列 | 日韩色情在緌 | 99久久亚洲精品日本无码 | 国产精品成人网 | 国内精品久久久久影院优 | 美女视频秀色福利视频 | 在线看片一区 | 中文人妻AV久久人妻水蜜桃 | 国产性夜夜春夜夜爽1A片 | 久久精品www | 桐岛永久子ed2k | 丁香五月激情缘综合区 | 公粗挺进了我的密道在线播放贝壳 | www.99在线| 工口里番全彩全彩无遮挡 | 日本黄页网站免费大全 | 成人h免费观看视频 | 亚洲精品久久久久久久久久无码 | 色哟哟免费精品网站入口 | 97夜夜澡人人爽人人模人人喊 | 我爱成人网 | 色哟哟网站在线观看入口 | 亚洲黄色官网 | 精品亚洲一区二区三区在线播放 | 双性将军粗壮H灌满怀孕 | 消息称老熟妇乱视频一区二区 | 99视频精品全国在线观看 | 天堂资源中文在线 | 国产乱码在线观看 | 久就热视频精品免费99 | 亚洲AV无码无限在线观看不卡 | 精品无人区麻豆乱码1区2区新区 | 亚洲自偷自偷图片在线高清 | 一级视频在线免费观看 | 国产一级簧片 | 一级做a爱过程免费视 | 婷婷五月花 | 国产黄在线观看免费观看 | 亚洲第一色网 | 久久99久久精品97久久综合 | 啊灬啊灬啊灬快灬A片免费直拍 | 把腿张开老子臊烂你小说完整版 | 无码中文字幕免费一区二区蜜桃 | 永久免费观看的毛片的网站下载 | 99视频精品全部免费 在线 | 四虎影视国产在线观看精品 | 亚洲精品偷拍AV一区二区 | 韩国三级在线高速影院 | 巜疯狂的少妇4做爰 | 欧美激情亚洲一区中文字幕 | 久久久这里只有精品免费 | 欧美激情一区二区三区视频 | 亚洲天堂三区 | 三级黄色免费观看 | 久久国产成人亚洲精品影院老金 | 婷婷四月开心色房播播 | 免费无码又爽又刺激A片软软件 | 亚洲人成影院在线播放 | 国产一区二区三区乱码在线观看 | 清一色网站 | 玖玖国产在线 | 最新精品亚洲成a人在线观看 | 国产成人精品福利色多多 | 国产成人一区二区三区在线观看 | 涩涩视频 | 无套内谢少妇毛片A片AV | 99久久无码一区人妻A片蜜臀 | 无码av波多野结衣久久 | 国产又粗又爽又猛的视频A片 | 黄网址在线观看 | 成人9久久国产精品品 | 好久被狂躁A片视频无码免费视频 | 国产毛片在线看 | 国产在线精品一区免费香蕉 | 国产亚洲精品欧洲在线视频 | 黄色动作视频 | 真人作爱视频免费视频大全 | 欧美日韩一区二区综合在线视频 | 日本不卡高字幕在线2019 | 又www又黄又爽啪啪网站 | 在线播放黄色网址 | 五月天婷婷免费视频 | 色-情-伦-理一区二区三区电影 | 少妇做爰特黄A片免费看 | 亚洲精品色情婷婷在线播放 | 国产精品自产拍在线观看中文 | 日本娇小xxxxhd | 自拍 另类 图片区 亚洲 | 韩国久久精品 | 日韩在线视屏 | 鸥美一级黄色片 | 午夜精品久久久久久久久日韩欧美 | 欧美性video高清精品 | 免费观看激色视频网站bd | 四虎影视在线看完整视频 | 午夜免费看视频 | 性欧美精品 | 欧美又大又粗毛片多喷水 | 欧美精品无码一二三区网站 | 中国三级网站 | 婷婷久久久五月综合色 | 久操资源在线 | 91情侣在线视频 | 久久理伦片琪琪电影院 | 男主是军人的肉肉H | 四房播色 | 五月天婷婷在线观看视频 | 和少妇邻居做爰伦理 | 成片免费的禁v影片 | 九九久久精品国产 | 97超碰A片人人爽人人澡97 | 一级毛片人与动免费观看 | 99久久精品免费看国产免费软件 | 日本又色又爽又黄的A片视频免费 | 日本毛片的免费高清视频 | 精品成人资源在线观看 | 亚洲蜜桃AV色情精品成人 | 久久国产精品二区99 | 波多野结衣手机在线播放 | 青青草免费手机在线视频亚洲视频 | 精品亚洲一区二区三区在线播放 | 国产在线一卡 | 美女内射毛片在线看免费人动物 | 国产精品日本欧美一区二区 | 欧美一区二区视频97色伦 | 国产视频久久久久 | 嘟嘟嘟WWW日本视频在线 | 又硬又粗进去好爽A片免费多人玩 | 日本成人一区 | 日日夜夜精品视频 | 国产精品久久久久久 | 亚洲一卡2卡三卡4卡 127 | 2024色情在线无码 | 狠狠狠色| 精品国产成人国产在线观看 | 久久久久久午夜精品 | 日产精品乱码卡一卡2卡三 日产精品卡二卡三卡四卡乱码视频 | 91免费版在线观看 | 午夜啪啪剧场 | 久久久久国产精品美女毛片 | 灌满抽搐合不拢男男H | 精品国产片一区二区三区 | 日韩精品在线视频观看 | 2022国产成人精品福利网站 | xxxx日本免费高清视频 | 狠狠精品干练久久久无码中文字幕 | 中文字幕精品视频在线观看 | 亚欧日韩毛片在线看免费网站 | 男女做爰全过程免费现看 | 蜜桃成熟时李丽珍 | 国产精品久久久爽爽爽麻豆色哟哟 | 国产激情艳情在线看视频 | 日本韩国三级 | 日本免费一区二区三区视频 | 成人免费毛片网站 | 99在线观看视频 | 女部长出差的滋味HD | 欧美亚洲国产专区在线app | 国产理论 | 色婷婷综合激情视频免费看 | 人妻少妇被粗大爽.9797PW | 在线二区 | 丝瓜app下载网址进入安卓免费 | 久青草国产97香蕉在线视频 | 完美世界动漫在线视频免费观看 | 最新日韩精品 | 日本无码色哟哟婷婷最新网站 | 成年男人裸j免费网站 | 天天干天天爽天天操 | 忘忧草在线播放WWW芒果 | 精品无人区乱码一区二区三区手机 | 古代荡女丫鬟高H辣文纯肉 古代高H啪肉NP文 | 日本爽爽爽爽爽爽免费视频 | 色综合天天操 | 日韩成人免费在线视频 | 伊人狠狠 | 在线成本人动漫视频网站 | 久久综合色悠悠 | 在线永久看片免费的视频 | 在线永久免费观看黄网站 | 国产成人精品一区二区 | 精品国产成人 | 欧美一级片在线免费观看 | 国产人妻系列无码专区第二页 | 最新国产在线播放 | 亚洲 无码 在线 专区 | 性感美女视频免费网站午夜 | 修理工厨房侵犯人妻系列国产 | 亏亏插曲叫疼的免费网址 | 在线成人看片 | 最近最好的中文字幕免费 | 538porm在线播放爽 | 中国孕妇XXXXXXXXX孕交 | 成熟少妇AV片在线观看 | 亚洲精品卡2卡三卡4卡2卡乱码 | BL肉YIN荡NP公厕肉便男男 | 三要四妾国语免费观看 | 久久精品国产99国产精品 | 91成人啪国产啪永久地址 | yellow字幕网 中文字幕 | 日韩有码视频在线 | 亚洲国产成人久久综合一区 | 日本一道一区二区视频 | 我要色播网 | 五月激激激综合网色播胖胖 | 玖玖在线精品 | 欧美精品华人在线 | 天堂8在线天堂资源在线 | 亚洲AV电影天堂男人的天堂 | 日本高清免费不卡在线播放 | 亚洲精品国产A久久久久久 亚洲精品第一区二区APP | 日日噜噜夜夜狠狠久久丁香婷婷 | 在线免费观看日韩视频 | 最近中文字幕高清中文字幕MV | 成人宗合网 | 国产最新一区二区三区天堂 | 千涩成人网 | 久久99精品久久久久久 | 日韩一区二区在线观看视频 | 免费啪视频在线观看视频久18 | 麻豆精品一卡2卡三卡4卡免费观看 | 91久久青青青国产免费 | 香港三级日本三级a视频 | 中文字幕2021无线乱码 | 强姧美女动态图片 | 午夜福利理论片高清在线 | 日本AAAA特级毛片 | 国产一起色一起爱 | 亚洲人成综合在线播放 | 伦理久久| 男主开会桌下被C得合不拢H | 秋霞av伦理片在线观看 | 久久日本片精品AAAAA国产 | 91导航福利| 北京熟妇搡BBBB搡BBBB | 看全色黄大色黄大片爽一次 | 人妻少妇69式99偷拍 | 欧美一区二区三区免费看 | 2019最新久久久视频精品 | 色天天综合网色鬼综合 | 99热这里只有精品免费 | 国产精品久久久亚洲第一牛牛 | 国产成人免费高清在线观看 | 日本无码成人深夜无码 | 国产成人久久久精品毛片 | 艳妇臀荡乳欲伦岳TXT免费下载 | 蜜臀在线观看免费网址 | 色婷婷国产熟妇人妻露脸AV | 欧美特级特黄a大片免费 | 邪恶肉肉全彩色无遮盖 | 中文字幕完整视频高清 | 一级一级特黄女人精品毛片视频 | 一个人免费看的视频www | 人成乱码一卡二卡三四卡五卡六卡 | 国产精品入口果冻 | 国产乱轮 | 奇米四色影院 | 波多野吉衣一区二区 | 一个人看的高清视频日本 | AV亚洲欧洲日产国码无码苍井空 | 欧美日韩免费一区二区三区 | 亚洲深夜在线 | 国产精品视频自拍 | 青青青国产手机在线播放 | 欧美 亚洲 日韩 在线综合 | H嗯啊高潮抽搐A片视频欧美 | 在线欧美 精品 第1页 | 豪妇荡乳1一5杨贵妃 | 苏南现代化建设示范区规划 | 亚洲最大色情网55101 | 国产国产精品人在线观看 | 疯狂揉小泬到失禁高潮AV | 666夜色666夜色国产免费看 | 欧美视频在线观看免费 | 久久在精品线影院精品国产 | 亚洲国产成人久久综合区 | 九九九九在线精品免费视频 | 亚洲国产熟妇无码一区二区三区H | 久在线视频 | 日本少妇内射视频播放舔 | 国产精品沙发午睡系列990531 | 色综合亚洲欧美图片区 | 大陆一级黄色片 | 黑人巨大进入白人美女视频 | 欧美在线亚洲 | 神兵小将第一季免费观看 | 99久久免热在线观看6 | 99视频精品全国在线观看 | 国产ZLJZLJZLJZLJ18公司 | 在线成人 | xxx中国bbbwww | 九九精品久久 | 久久精麻豆亚洲AV国产品 | 欧美黄a | 91中文 | 91精品欧美一区二区三区 | 久久综合五月天婷婷伊人 | 99久久国产露脸国语对白 | 午夜福利1692免费视颍 | 欧美一卡2卡3卡4卡乱码 | 欧美三级在线完整版免费 | 在线观看国产三级视频 | 久99热| 日本无码毛片一区二区手机看 | 欧美日韩一线 | 2024夜夜干天天骑日日日 | 亚洲美女视频高清在线看 | 日本亚洲精品无码专区国产 | 最色影院| 六月激情综合 | 色偷偷噜噜噜亚洲男人 | 亚洲AV久久无码精品九号 | 亚洲国产精品天堂在线播放 | 动漫精品欧美一区二区三区 | 欧美精品在线观看视频 | 国产精品视频h | 亚洲 日韩 色 图网站 | 午夜AV福利一区二区三区内射 | 久综合网 | 久久毛片免费看一区二区三区 | 久久精品国产视频在热 | 双性将军粗壮H灌满怀孕 | 国产精品亚欧美一区二区三区 | 中文字幕日韩视频 | 久久久香蕉视频 | 偷拍亚洲制服另类无码专区 | 中日韩一卡二卡三卡四卡在线观看 | 国产又黄又爽胸又大免费视频 | 精品无码一区二区三区蜜桃 | 完美世界动漫在线视频免费观看 | 最近中文字幕高清字幕MV | 午夜精品一区二区三区免费视频 | 三级在线观看中文字幕完整版 | 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 | 国精品午夜不卡福利 | h色网站 | a免费网站 | 亚洲三级黄色片 | 日韩色情在緌 | 精品无码人妻一区二区三区国产 | 8x在线视频| 亚洲欧美一区二区成人片色欲AV | 极品美女扒开粉嫩小泬图片 | 色无五月| 国产福利2021最新在线观看 | 日韩精品综合 | 欧美人妻无码A级视频 | 国产乱子伦农村叉叉叉 | 3d肉蒲团观看地址 | 国产精久久一区二区三区 | 在线观看国内自拍 | 国产丰满人妻一区二区 | 又色又爽又黄的在线视频免费看 | 日本wwwxx爽69护士 | 秋霞电影网理论片韩国在线观看 | 色无五月 | 免费一级肉体全黄毛片 | 日韩视频高清 | 麻豆免费国产福利视频 | 国产精品色欲AV亚洲三区软件 | 玖玖草在线观看 | 欧美人妖20p | 久久国产精品免费观看 | 日韩亚洲AV无码波多野结衣 | 日韩一卡2卡三卡4卡无卡网站 | 日本 欧美 在线 高清 | 18禁三级黄 | 欧洲无人区码SUV | 免费v片| 粉嫩大学生无套内射无码卡视频 | 国产一性一交一伦一A片视频 | 日本大片高清免费视频 | 真实一级一级一片免费视频 | 窝窝午夜看片七次郎青草视频 | 小77论坛唯美清纯 | 美女祼体添鸡把图片 | 青草视频在线观看免费 | 搞av在线电影 | 免费观看碰碰碰视频在线观看 | 少妇看A片偷人精品视频 | 五月激情站| 国产在线视频在线 | jizzjizzjizz亚洲日本 | 免费夫妻生活片AV | 欧美一区二区激情视频 | 麻豆自媒体 一区 | 黄色网免费看 | 久久免费手机视频 | 日韩三级一区二区三区 | 中国人xxxxbbbb国产 | www.黄视频 | 国产成人免费高清激情视频 | 欧美日本一道高清二区三区 | 狠狠色狠狠色综合日日92 | 日韩精品1区 | 四虎2024国产最新地址 | 小小女视频网站色琼网站 | 亚洲小说在线图片色 | 日本精品视频网站 | 亚洲精品欧美精品日韩精品 | 免费毛片网站在线观看 | 欧洲最新一卡二卡三卡四卡 | 毛片TV网站无套内射TV网站 | 久久精品视在线观看2 | 高考陪读妇乱子伦小说长篇 | 99er久久| 在线永久免费观看黄网站 | 五月丁香啪啪激情综合5109 | www好男人精品视频在线观看 | 国产成人www免费人成看片 | 日日日日人人人夜夜夜2017 | 欧美亚洲另类热图 | 在线免费观看波多野结衣 | 色噜噜网小说网 | 精品国产一区二区三区久久影院 | 91网站免费看 | 久在线视视频在线观看 | 欧美日韩激情一区二区三区 | 日本不卡高清免费v日本 | 日本精品无码久久久久三级国产 | 欧美99久久无码一区人妻A片 | 毛茸茸逼| 大地影院日本高清免费完整版 | 国产特级毛片AAAAAAA高清 | 亚洲精品一区中文字幕乱码 | 亚洲一区免费观看 | 国产激情视频在线播放 | 国产一级一级毛片 | 男人都懂www深夜免费网站 | A欧美爰片久久毛片A片 | 久久狠狠丁香婷婷综合 | 免费网站在线观看人数在哪里看的 | 国产免费三级a在线观看 | 日本精品久久久 | 在线视频播放免费网站视频在线 | 色婷婷综合缴情综六月 | 国产人妻一区二区免费AV | 中文字幕精品1在线 | 国产制服一区 | 久久精品免费视频观看 | 欧美69视频| 91女神精品系列在线观看66 | 天天草天天干 | 深夜激情网 | 国产午夜精品视频在线播放 | 内射丰满高大五十五岁熟女 | 无节操摄影部第一集第二集 | 亚洲欧美久久 | 九一国产在线观看 | 欧美一级欧美一级在线播放 | 日韩在线观看视频免费 | 荡公乱妇第1章方情全文免费 | 91三级视频| 国产视频亚洲精品视频 | 在线成人综合色一区 | 一级毛片日韩 | 亚洲AV国产AV综合AV卡 | 国产高清管线免费视频 | 国产成人精品日本欧美动漫 | 乱码丰满人妻一二三区 | 97久久影院| 久久re视频这里精品一本到99 | 曰批全过程免费视频在线观看草莓 | 韩国伦理电影在线伦理 | 毛茸茸性毛茸茸大b | 欧美在线视频二区 | 免费在线观看h片 | 欧美日韩一区二区三 | 免费在线看黄网站 | 日韩免费观看一级毛片看看 | 最近免费中文字幕大全高清10 | 白莲花乖腿打开h调教 | 最近中文字幕完整视频高清 | 中文字幕人妻熟女人妻 | 国产亚洲精品第一综合另类 | 久久草在线视频 | 国产三级日本三级在线播放 | 国产成人精品视频一区 | 亚洲国产日韩a精品乱码 | 成人A片熟女人妻久久 | 最近最新中文字幕大全高清版 | 国产无线乱码一区二三区 | 日本最新免费二区 | 黄色免费网站在线播放 | 国产精品99久久久久久AV小说 | 亚洲一区二区三区免费视频 | 草莓茄子丝瓜樱桃奶茶秋葵 | 国产精品久久人妻无码网站一区L | 亚洲国产专区校园欧美 | a黄色毛片| 日韩视频网址 | 麻豆精品一卡二卡三卡 | 久青草国产手机视频免费观看 | v片免费观看 | 优雅美妇疯狂迎合娇吟 | 色中色 地址 | 国产日韩精品SUV | 日日噜噜夜夜狠狠视频欧美人 | 影音先锋2017av天堂 | 视频在线观看一区二区三区 | 黄页视频在线观看免费 | 午夜精品人妻无码一区二区三区 | 亚洲综合网国产福利精品一区 | 日本黄色片网站 | 要色地址 | 中文字幕高清在线中文字幕 | 五月婷婷激色号网 | 欧美日韩精品一区二区三区 | 日本电影在线看正片 | 国产午夜亚洲精品区 | 99热只有| 少妇饥渴放荡的高潮喷水 | 天堂婷婷| 韩国三级日本三级香港三级黄 | 成人在免费视频手机观看网站 | 久久成人AV精品国产麻豆 | 免费国产黄网站在线看品善网 | 天美 麻豆 果冻 | 天天撸在线视频 | 黄页在线免费观看 | 中央工作组赴宜春督导锂矿开采 | 亚洲高清台 | 国产人妻人伦精品熟女A片 国产人妻无码鲁丝片久久麻豆 | 中文字幕高清在线中文字幕 | 18出禁止看的啪视频网站 | 亚洲精品精华液一区二区 | 国产自产一c区 | 国产色女人| 日韩精品专区在线影院重磅 | 午夜wwww| 黄色网址亚洲 | 国产欧美精品系列在线播放 | 日韩AV无码一区二区三区不卡毛片 | 91精品手机国产在线能 | 全黄H全肉短篇禁乱NP | 天美影视文化传媒公司 | 丁香花在线视频观看免费 | 张馨予疯狂床照视频 | 精品国产一区二区三区久久影院 | 97在线免费观看视频 | 久久手机娱乐网 | 中文字幕日韩在线 | 观看在线人成电影 | 91女神精品系列在线观看66 | jizzjizz在线| 最近最新中文字幕完整版免费高清 | 欧美V亚洲V综合V国产V | 黄色动态网站 | 黄页网站免费在线观看 | 亚洲免费大全 | 国产一区二区三区在线视频 | 校园高H校草深一点H | 国产麻豆精品久久一二三 | 同涩限制分级第1页 | 精品久久久久久无码人妻国产馆 | 一级片网站在线观看 | 波多野结衣全集线观看456 | 伊人婷婷涩六月丁香七月 | 2019最新国产高清不卡a | 最近中文字幕免费视频 | 欧美乱妇15p图 | 美国毛片基地a级e片 | 久热在线这里只有精品 | 电家庭影院午夜 | 少妇高潮呻吟A片免费看小说 | 久久丝袜视频 | 欧洲美女高清一级毛片 | 中文天堂最新版在线网 | 婷婷夜色| 久99久精品视频免费观看v | 亚洲一卡2卡3卡4卡乱码网站 | 午夜精品成人毛片 | 久草在线视频免费老司机 | 夜夜夜操 | 美国的毛片免费的 | 好硬啊进得太深了A片无码公司 | 四虎在线视频 | 亚洲精品www久久久久久 | 好硬啊进得太深了A片无码公司 | 国产精品中文字幕在线 | 亚洲欧洲自拍拍偷 | 97se亚洲综合在线天天 | 国产成人精品久久 | 无码AV久久久久久久久 | 国产全黄a一级毛片视频 | 国产人成精品综合欧美成人 | 亚洲欧美中文日韩v在线 | 2022色婷婷综合久久久 | 欧美片免费观看网址 | 色多多深夜福利免费观看 | 日本中文字幕有码在线视频 | 小明精品国产一区二区三区 | 涩涩网站在线看 | 一本三道a无线码一区v小说 | 九九自拍视频 | 阿娇不雅视频 | 人与禽ZOZO性伦 | ed2k 大桥未久 | 视频一本大道香蕉久在线播放 | 在线观看免费播放黄污 | 成人免费永久在线观看视频 | 成人五月网 | ts在线视频 | 人禽互交50篇视频 | AV国産精品毛片一区二区网站 | 青青热久免费精品视频精品 | 扬名立万在线观看 | 国产精品porn | 久久久这里只有精品加勒比 | 成人国内精品久久久久影院 | 亚洲欧美一区二区三区久本道 | 国产精品人妻一码二码尿失禁 | 亚洲成人黄色在线 | 国产黄色免费看 | 日韩精品无码视频一区二区蜜桃 | 一区二区三区免费看A片 | 亚洲自偷自拍另类图片小说 | 大陆一级毛片免费视频观看i | www亚洲免费 | 黄网站色视频大全免费观看 | 久久成人AV精品国产麻豆 | 毛片TV网站无套内射TV网站 | 黄页网站在线看 | 国产在线不卡视频 | 日韩成人免费视频播放 | 第四色播日韩AV第一页 | 最好看的最新的中文字幕3 最近2019中文字幕免费 | 国产在线精品视频二区 | 内射精品无码中文字幕 | 国产精品美女免费视频观看 | 国产精品三级在线观看 | 中文字幕乱码 电影在线观看 | 日韩欧美一区二区三区免费观看 | 国产精品成人久久久久 | 麻豆精品传媒 | 琪琪色原网 | 午夜AV亚洲一码二中文字幕青青 | 久久国内免费视频 | 美国一级大毛片 | 国产综合欧美日韩在线 | 另类色视频 | 精品无人区乱码一区二区三区手机 | 欧美中文字幕在线播放 | 成人影院网 | 成年视频免费观看 | 日韩大片在线永久免费观看网站 | 久久国产欧美国日产综合抖音 | 久久久久国产精品免费 | 人禽互交50篇视频 | 好吊日在线视频 | 九月丁香婷婷亚洲综合色 | 欧美午夜视频在线观看 | 亚洲精品久久无码AV片软件 | 日本精品无码一区二区三区久久久 | 亚洲午夜精品在线 | 欧美一级特黄乱妇高清视频 | 在线观看免费黄色小视频 | 好硬好湿好大再深一点动态图 | 日本在线视频二区 | 依依社区人妻 | 果冻传媒董小宛一区二区 | 色伦专区97中文字幕 | 天堂在线www网亚洲 天堂在线v | 久久精品国产亚洲精品 | 少妇又紧又爽又丰满A片小说 | 又大又爽又黄无码A片在线观看 | 日日撸影院在线 | 日本视频二区 | 婷婷色视频 | 日本视频电影不卡无玛 | 亚洲国产AV一区二区三区四区 | 久久综合久久鬼 | 五月婷婷六月丁香在线 | 欧美一区二区影院 | 欧美三级久久 | 最新精品国偷自产在线69 | 男女无遮挡猛进猛出免费观看视频 | 日本老熟妇毛茸茸 | 久久精品国产久精国产果冻传媒 | 一区二区三区不卡在线观看 | 伊人成综合人网 | 亚洲国产成人在人网站天堂 | 国产又黄又爽又刺激的免费网址 | 国产免费久久精品99久久 | 亚洲ci网| 免费看男人J放进女人J无遮掩 | 嗨电影网 | 亚洲精品一区二区三区四区五区 | 春雨电影大全免费观看在线播放 | 在线日韩麻豆一区 | 国产深夜男女无套内射 | 小小视频资源免费观看高清 | 国产精品人妻一区免费看8C0M | 国产福利在线看 | 中国一级毛片在线观看 | 最爱视频在线直播www | 国产在线是视频有精品 | 中文字幕AV久久激情亚洲精品 | 日韩AV片无码一区二区三区不卡 | 欧美性久久 | 午夜福利不卡片在线播放免费 | jul-179在线中文字幕 | 激情文学综合网 | 色中色域名 | 国产成人亚洲精品91专区高清 | 含羞草传媒一区二区三 | 午夜精品一区 | 视频91在线| 福利在线网址 | 十九天未删减在线观看 | 国语自产拍在线观看偷拍在 | 亚洲图片欧美文学小说激情 | 国产精品日日做人人爱 |