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

ponto quente

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

ecaimym

12 Oct 2025(atualizado 12/10/2025 às 02h49)

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

Temas

Compartilhe

Busque sua vaga de emprego entre as 1,2 mil abertas na regi?o de Piracicaba'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 estrategia dos numeros roletaits 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

'It's rather different from selling an ordinary book' How Lady Chatterley's Lover was banned – and became a bestseller.txt

Feir?o de empregos oferece 3 mil vagas em Hortolandia; saiba como se candidatar ponto quente e os explorar ponto quente.

GRáFICOS

nos eixos

'I know about hit songs, hit numbers, hit sounds' The man who turned The Beatles into superstars.txt

Programa de emprego para pessoas com deficiência acontece em Suzano abrangente e os conhecimento lazer.

Navegue por temas

Itapetininga oferece até 90% de desconto em juros e multas no Refis 2025 Programa de emprego para pessoas com deficiência acontece em Suzano Boudoir: ensaio de fotos sensual eleva a autoestima e a confian?a Parada LGBT: 6a edi??o acontece neste domingo em Hortolandia; veja participantes Emprego: 15 cidades da regi?o de Campinas reúnem 3 mil vagas de trabalho nesta semana Busque sua vaga de emprego entre as 1,2 mil abertas na regi?o de Piracicaba Feir?o de emprego em Campinas oferece 900 vagas; salários chegam a R$ 5 mil Unipiaget inaugura Clínica-Escola de Psicologia em Suzano no Dia do Psicólogo De ajudante geral a governanta: confira 1,3 mil oportunidades de emprego na regi?o de Piracicaba De estoquista a vigia: regi?o de Piracicaba tem 1,5 mil vagas abertas; veja como se candidatar
伊人中文字幕波多野结衣 | 激情六月色 | 亚洲精品无码成人A片在线软件 | 全黄H全肉短篇禁乱NP慕浅浅 | 快播酒色网 | 涩涩快播 | 国产中文字幕在线免费观看 | 亚洲国产美女免费视频 | www.天天干 | 久久精品国产99国产精品小说 | 琪琪色原网20岁以下热热色原网站 | 92午夜理论 | 国产激情视频 | 91网站免费看 | 俺去也网站 | 久久免费视频在线观看6 | 免费国产麻豆传 | 特级毛片绝黄A片免费播冫 特级毛片在线大全免费播放 | 亚洲AV久久无码精品九九软件 | 一个人看的手机视频www | 丰满的日本护士xxx 疯狂撞击美妇雪白的大肉臀 | 免费大片黄在线现看国语 | 一区二区三区四区在线免费观看 | 精品欧美中国福利第一导航 | 91涩涩视频 | 黄视频在线免费看 | 久久亚洲精品AV成人无码 | 黄网址大全免费观看免费 | 日本 一二三 不卡 免费 | 五月婷六月丁香 | 国产一区二区三区美女在线观看 | 国产美女做爰A片免费 | 欧美片第1页 综合 | 久久66热人妻偷产国产 | jizz老师喷水 | 99热久久久无码国产精品性麻豆 | 伦理电影网韩国伦理片 | jul-179在线中文字幕 | 四虎影视网 | 免费看黄网址 | 丁香花视频资源在线观看 | 国产精品久久毛片完整版 | 99精品无人区乱码在线观看 | 国产精品人妻一区夜夜爱 | 欧洲免费极品videos | 厨房玩弄丰腴尤物美妇 | 国产妇女在线 | 欧美xxxx成人免费网站 | 久久99国产精品久久 | 99久久精品国产一区二区小说 | 久久国产精品久久久久久小说 | 四虎影视出品必属精品 | 亚洲AV国产精品无码A片APP | 毛片网站在线观看 | 在线观看视频免费精品视频 | 欧美日本综合一区二区三区 | 欧美伊人 | 九月丁香婷婷亚洲综合色 | 欧美激情bd高清在线播放 | 国产人妻人伦AV又粗又一长 | 777奇米色| 日本吻胸视频成人A片无码 日本无码H纯肉黄动漫A红桃 | 国偷盗摄自产福利一区在线 | 欧美内射深喉中文字幕 | 黄页网站在线视频免费 | 国产福利小视频在线播放观看 | 涩涩网站在线观看 | 亚洲欧美激情精品一区二区 | 污图露内裤 | 色欲AV蜜臀AV在线观看麻豆 | 色偷偷资源站 | 在线精品亚洲观看不卡欧 | 男人的天堂中文字幕熟女人妻 | 久久日本精品在线热 | 做A爰片久久毛片A片的价格 | 无码观看AAAAAAAA片 | 公用玩物(NP双XING总受) | 国产成人精品美女在线 | 美国三级网 | 日韩免费视频播放 | 老太奶性BBWBBW在线观看 | 亚洲成AV人片一区二区三区 | 国产性生大片免费观看性 | 成人精品视频 | 亚洲性线免费观看视频成熟 | 极品少妇XXXX精品少妇偷拍 | 天天干天天透 | 亚州色区| 日本黄页网 | 中文自拍 | 最好看的免费观看高清电影 | 国产精品人妻无码久久久免费看 | 日本高清视频免费在线观看 | 国产精品_国产精品_国产精品 | 伦理电影中文字幕韩国在线观看 | 国产精品久久精品 | 大尺度一级毛片波多野结衣 | 成人免费又大又爽A片视频 成人女人A级毛片免费软件 | 六月婷婷啪啪 | 秋霞网国产 | 清冷将军被C把腿张开NP产 | 2020国产成人久久精品 | 久久无码亚洲成A人片 | 国产成人片 | 新版天堂中文资源8在线 | 91久久香蕉国产线看 | 久久精品国产三级不卡 | 午夜视频免费 | 国产精品久久久久久久专区 | 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 | 在线日本高清日本免费 | 九九热在线视频观看这里只有精品 | 一级毛片完整版免费播放一区 | 亚洲精品无码成人A片在线漫画 | av天堂电影网| 五月色综合无码一区二区三区 | 五月婷婷激情视频 | 国产一区二区三区不卡在线观看 | 免费观看一级成人毛片软件 | 天天操天天干天天拍 | 免费黄色一级毛片 | 老司机深夜福利视频 | 操美女在线播放 | 国产精品99亚发布 | 加勒比精品 | 快点好深好爽受不了了 | 国产午夜精品AV一区二区麻豆 | 性躯干 | 色噜噜噜亚洲男人的天堂 | youjizz国产 | 日韩亚洲欧美中文高清 | 国精品产露脸偷拍视频 | 天天av天天翘天天综合网 | 免费视频大片在线观看 | 国产真实乱子伦清晰对白 | 亚洲小说欧美另类激情 | 国产精品情侣自拍 | 国产又爽又大又黄A片小说 国产又爽又黄无码无遮挡在线观看 | 边啃奶头边躁狠狠躁AV | 视频一区中文字幕日韩专区 | 欧美一道本 | 亚洲日韩一区精品射精 | 天天摸夜夜操 | 精品欧美一区二区三区四区 | 免费的很黄很污的全部视频 | 天堂资源在线最新版 | 亚洲一区AV在线观看红楼梦 | 午夜影院网站 | 精品久久久爽爽久久久AV | 亚洲不卡一区二区三区 | 国内精品乱码卡一卡2卡三卡 | 日韩成人黄色片 | 久久久久久久综合日本亚洲 | 艳妇臀荡乳欲伦交换H在线观看 | 毛片站 | 野花日本大全免费观看6高清版 | 国产精品岛国久久久久 | 久操精品在线观看 | 国产人碰人摸人爱视频 | 99精品电影一区二区免费看 | 日产在线播放视频在线观看 | 91久久亚洲最新一本 | 妞干网手机免费视频 | 久久这里精品青草免费 | 三级免费网站 | 一个免费看片高清在线 | 99热在线观看 | 永久免费精品精品永久-夜色 | 快播泷泽萝拉 | 99精品久久久久久国产人妻 | 欧美黄无码无遮挡大开眼戒 | JAPANESE性内射 | 日韩精品小视频 | 日韩在线操 | 工口里番全彩色无遮挡 | 亚洲精品一区国产欧美 | 电家庭影院午夜 | 久久久久久久99精品免费观看 | 水密桃网站 | 吉泽明步高清无码中文 | 亚洲精品久久久久久无码AV | 中文字幕在线永久视频 | 成人a一级毛片免费看 | 四虎国产精品永久一区高清 | 久久99精品一级毛片 | 久久免费看少妇高潮A片特 久久免费看少妇高潮A片特爽 | 四房播播开心 | 影音先锋a色情av资源 | 日韩字幕在线 | 久久精品国产99国产精品澳门 | 好吊色综合网天天高清 | 国产99在线观看 | 公和我做爽死我了A片AAB | 日本在线视频免费 | 成年网站在线观看 | 斯大林格勒战役免费高清观看 | 无码一区二区三区亚洲人妻 | 狠狠色丁香婷婷 | 黄页视频免费在线观看 | 最近免费中文字幕MV | 久久人妻国产精品31 | 黄色网址免费在线 | 青青草国产免费国产是公开 | 激激婷婷综合五 | jizzjizz免费| 亚洲精品一区三区三区在线观看 | 麻豆精品久久久一区二区 | 国产精品高清视亚洲一区二区 | 亚洲成AV人片在线观看WV | 葫芦娃.combo深夜释放自己 | 成人福利在线观看免费视频 | 在线观看的免费视频网站 | 人妻夜夜爽爽88888视频 | 99国产精品久久人妻无码 | 99久久精品免费国产一区二区三区 | 三级黄色视频 | 国产亚洲精品久久久久久线投注 | 日韩毛片网 | 国产精品情侣自拍 | 国产精品色情国产电影 | 免费观看黄视频网站 | 亚洲精品女同中文字幕在线 | 中文欧美一级强 | 日韩免费一级a毛片在线播放一级 | 亚洲伊人色综合久久天天伊人 | 黄色一级片在线 | 中文字幕理伦电影免费 | 毛片在线网址 | 最近最好的中文字幕免费 | 亚洲精品久久久久久久蜜桃臀 | 东北老女人大叫爽死啦 | 国产中文欧美日韩在线 | 2018高清国产一区二区三区 | 什么网站可以看毛片 | 日本免费中文字幕 | 无码乱人伦一区二区亚洲 | 成人综合亚洲欧美一区h | 麻婆豆传媒一区二区三 | 国产成人精品永久免费视频 | 日韩精品一区二区三区色欲AV | 日日噜噜夜夜狠狠视频欧美人 | 国产电影一曲二曲三曲 | 激视频小说区在线观看 | 毛片网站在线观看 | 欧美做爰免费大片视频 | 同居试爱冷少夜夜纠缠 | 性欧美久久 | 无码潮喷A片无码高潮小说 无码成A毛片免费 | 成人网18免费下 | 国产伦精品一区二区三区免.费 | 男人午夜小视频 | 啪一啪射一射2024 | 国产AV国片偷人妻麻豆潘甜 | 深夜国产在线 | 色欧美亚洲| 大片免费视频观看 | 欧美在线观看视频一区 | 99精品国产免费观看视频 | 久久免费香蕉视频 | 日本免费观看的视频在线 | 欧美特黄一级高清免费的香蕉 | 天天影视网网色色欲 | 国产成人精品999在线 | 精品国产自在拍第一码 | 91精品国产欧美一区二区 | 深爱五月综合网 | 天天射天天操天天干 | 亚洲品质自拍网站 | 秋霞电影网伦大理电影在线观看 | 视频一区国产 | 欧美日韩看看2015永久免费 | 蝌蚪网在线视频 | 中文字幕在亚洲第一在线 | 2020狠狠操| 四房播播婷婷基地 | 色综合久久久久久888 | 精品丰满人妻AV久久久 | 日日夜夜伊人 | 国产中字 | 成人免费福利网站在线看 | 97视频精品| 午夜精品久久久久久久爽 | 久久久久久久一精品 | 色在线视频观看 | 日本无码一区二区三区不卡 | 午夜国产精品视频在线 | 伊人久久精品午夜 | 国产成人午夜福在线观看 | 太粗啦太硬了受不了 | 国产精品久久久99 | 在线观看永久免费视频直播 | 亚洲欧美日韩中文播放 | 中国老妇另类xxxx | 在线看片福利无码网址 | 99视频有精品视频高清 | 国产成人一区免费观看 | 亚洲精品精华液一区 | 久久精品精品 | 日韩精品中文字幕视频一区 | 级毛片久久久毛片精品毛片 | 日本在线观看网站 | 黄色的网站免费看 | 超碰97av 在线人人操 | 麻辣妈妈 | 日韩精品视频免费在线观看 | 国产精品扒开腿做爽爽爽王者A片 | 天津稀有金属交易市场 | 免费国产成人α片 | 开心色播站 | 强壮公让我夜夜高潮A片 | 色天使色妺妺网站 | 无码又爽又刺激A片涩涩动漫软件 | 国产真实乱xxxav | 亚洲精品久久久久高潮 | av天堂.com| 波多野结衣在线观看一区二区 | 精品国产VA久久久久久久冰 | 欧美成人免费做真爱A片 | 校园高H校草深一点H | 日韩午夜 | 依人成人| 九色欧美 | 国产精品国产三级国AV在线观看 | 性一交一乱一乱A片AP88 | 国产精品久久久久影院免费 | 久草这里只有精品 | 天堂资源在线最新版地址下载8 | 久久一本综合 | 久久99国产精品一区二区 | 麻豆国产传媒18精品A片 | 免费在线观看h片 | 国产免费又色又爽又黄的小说 | 欧美xxxx做受欧美88bbw | 三色黄A片免费播放335VCC | 中文字幕精品AV一区二区五区 | 四虎最新网站 | 国产蝌蚪 | va天堂va亚洲va影视中文字幕 | 精品国产午夜福利在线观看 | 一个色综合国产色综合 | 国产成人A片免费观看 | 欧美国产日本精品一区二区三区 | s情网站| 亚洲精品久久久无码一区二区 | 狠狠躁夜夜躁人人爽A片 | 国内精品偷拍在线观看 | 色婷婷激婷婷深爱五月小说 | 欧美精品v | 无码欧美又大又色又爽AAAA片 | 性xxxx奶大欧美高清 | 看一级毛片一区二区三区免费 | 美女露出尿口让男生爽痛 | 我看一级黄色片 | 日本一区二区免费看 | avtt2015天堂网| 无码人妻丰满熟妇啪啪欧美 | 国产一区二区精品视频 | 色黄网站大全 | 国产中文字幕在线 | 亚洲 欧美 日本 国产 高清 | 偷看洗澡好多毛 | 斗破苍穹第5季全集免费观看 | 亚洲在线视频自拍精品 | 三要四妾国语免费观看 | 午夜精品A片一区二区三区 午夜激情在线观看 | 黄色香蕉网 | 国产黄A三级三级三级AV在线看 | 午夜高清视频在线观看 | 一区二区三区不卡在线观看 | 色欧美色| 特级做A爰片毛片免费看无码 | 国产视频一二三区 | 久久热最新网站获取 | 精品国产乱码久久久久久口爆 | 国产h视频在线观看免费 | 伊人久久久久久久久久 | 天天操夜夜操狠狠操 | 97视频免费在线观看 | 免费成人伦理电影 | 国产精品_卡2卡三卡4卡 | 老熟女强人国产在线 | 有人有片资源吗在线观看WWW视频 | 国产成人福利在线 | 我的公把我弄高潮了视频 | 亚洲欧美日韩v中文在线 | 亚洲最大黄网 | 小骚货 爽不爽 | 2018生活片性色生活片 | WWW国产亚洲精品久久久日本 | 免费大片黄国产在线观看 | 天天色 | 福利视频入口 | 高辣H文短篇啪啪小说男男 高辣H文黄暴糙汉文H文 | 波多野结衣在线不卡 | 美女解开胸衣露出奶头的游戏 | 免费观看又色又爽又黄的忠诚 | 性色影院| 国产色精品久久人妻无码看片 | 高清无码日本一区二区 | 舌头伸进去添的我好爽高潮视频 | 俺也去资源站 | 国产熟妇另类久久久久婷婷 | 午夜精品成人毛片 | 欧美MV日韩MV国产网站 | 忘忧草在线社区WWW日本-韩国 | 少妇高潮呻吟A片免费看小说 | 中文人妻AV久久人妻水蜜桃 | 色偷偷网 | 成人影院线在线观看免费观看 | 久久精品9| 成人毛片18女人A片 成人毛片18岁女人毛片免费看 | 日本aaaa视频 | 成人亚洲A片V一区二区三区日本 | 亚洲精品AV无码永久无码 | 亚洲最大日夜无码中文字幕 | 九九精品免视频国产成人 | 国产蝌蚪 | 国产情侣久久精品 | 国产强伦姧人妻一区二区 | 日本一本无码中文字幕 | 国产亚洲精品久久久久久鸭绿欲 | 韩国伦理片在线2018 | 再猛点深使劲爽免费视频 | 欧美日b | 91免费精品国自产拍在线不卡 | 精品国产乱码久久久久夜深人妻 | 中文字字幕在线中文乱码 | 青草视频在线观看完整版 | 国产人妻高清国产拍精品 | 轻点大JI巴太粗太长了A片 | 色视频在线观看完整免费版 | 国产二级一片内射视频播放 | 99免费在线观看视频 | 极品成人 | 欧美日韩高清不卡免费观看 | 凡人修仙传动漫53集免费 | 国产精品久久久久久久久久妇女 | 国产夜夜春 | 日韩一级一欧美一级国产 | 黄网站在线观看高清免费 | 男生强行扒了女生的衣服视频 | 91免费公开视频 | 国产精品色婷婷在线观看 | 91网在线 | 一级毛片不卡片免费观看 | 亚洲高清无在码在线电影 | 亚洲精品沙发午睡系列 | 日本黄页在线观看 | 美女露出尿口让男人揉动态图网站 | 色影| 亚洲制服丝袜中文字幕 | 一个人看的www视频在线播放 | 久久综合伊人中文字幕 | 小蝌蚪视频app无限看 - 丝瓜ios视频丝瓜视 | 五月激情啪啪 | 伦理在线观看 | 91热久久免费频精品99欧美 | 午夜AV精品一区二区三区 | 久草这里只有精品 | 日本午夜精品久久久无码 | 操综合网 | 久久精品免费大片国产大片 | 天堂а√在线中文在线 | 一级做a爱视频 | 中文字幕一级片 | 日本无码一区二区三区不卡 | 国产JIZZ中国JIZZ免费看 | 97精品国产综合久久 | 毛片A级毛片免费观看品善网 | 国产精品一区二区三区高清在线 | 国产3级在线 | 99在线国产视频 | 狠狠地撸2015最新版 | 日韩欧美激情兽交 | 最好看的2018国语在线 | 日韩精品中文字幕久久 | 愉拍自拍一区首页 | 性欧美精品xxxx | 老师您的兔子好软水好多动漫 | 好涨好爽好大视频免费 | 一起看电影网 | 日本精品人妻无码久久久 | 嫩草AV久久伊人妇女超级A | 看片免费黄 | 中国毛片在线观看 | 国产在线不卡免费播放 | 原来的琪琪电影在线看 | 精品人妻无码一区二区三区下载 | 欧美亚洲性色影视在线 | 最近新免费韩国电影高清 | 久久是热频这里只精品4 | 8050午夜一级全黄毛片 | 久久精品熟女亚州AV麻豆 | 2024四虎影视最新在线 | 韩国18禁床震吃胸喝奶视频 | 欧美乱妇15p辣图 | 一区二区人妻无码欧美 | 欧美呻吟 | 日韩亚洲国产综合高清 | 高清视频在线观看WWW | 免费在线成人网 | 8x成人永久在线观看视频 | 人妻天天爽夜夜爽三区麻豆A片 | 天堂中文资源在线地址 | 天天网综合 | 婚后1v1啪啪做H高甜 | 欧美性生交18XXXXX无码 | 久久人人青草97香蕉 | 亚洲熟女乱色综合亚洲图片 | 欧美在线观看一区二区三区 | 亚洲黄色官网 | 老外的一级大黄色毛片 | 色网址导航大全 | 涩涩片大全百度影音 | 天天干夜夜夜操 | 欲盖弄潮百度影音 | 少妇A片出轨人妻偷人视频 少妇高清性色生活片成人版 | 黑人xxxx性hd极品 | 亚洲成a人v欧美综合天堂下载 | 99热久久爱五月天婷婷 | 国产全黄a一级毛片 | 免费啪视频观试看视频软件 | 又爽又高潮日本少妇A片 | 在线伊人网| www.日韩.com | 一本到12不卡视频在线dvd | 色情大尺度吃奶做爰在线观看 | 久久久亚洲天堂 | 伊人婷婷综合缴情亚洲五月 | 国产精品亚欧美一区二区三区 | 色综合视频一区二区三区 | 日本高清在线观看视频 | 国产成人禁片免费观看 | 亚洲另类欧美日本 | 四虎地址8848 | 欧美一区二区三区视频在线观看 | 欧美性爱 成人 | 乱码中字在线观看一二区 | 日韩经典在线 | 拉风色影院 | 经典强奷系列人妻 | 日本公妇里乱片A片在线播放保姆 | 在线观看视频网站www色 | 免费看一区无码无A片 | 伊人一区二区三区 | 欧美精品色婷婷五月综合 | 又色又爽又黄的在线视频免费看 | 四虎免费最新在线永久4HU | 中文字幕在线欧美 | 91最新网站免费 | 免费的黄网 | 国产一区二区三区乱码 | 免费人成黄页在线观看日本 | 国产精品麻豆久久久 | 欧美在线视频二区 | 亚洲色欲AV无码乱码国产精品 | 2020最新国产自产精品 | 精品人妻无码一区二区三区蜜桃一 | JAPANESE性内射 | 久久热最新地址获取1 | 国产日产亚洲欧美综合另类 | 人人爽久久久噜噜噜丁香AV | 亚洲欧美日本在线 | 啊灬啊别停灬用力啊免费看 | 欧美一道本一区二区三区 | 在线观看成人A片免费播放 在线观看免费的小电影网站 | 韩国A级做爰片无码费看蚯蚓 | 日韩三级免费 | 日韩视频欧美视频 | 免费大黄网站在线观看 | 国产精品色情一区二区三区 | 国产精品成人四虎免费视频 | 免费网站日本永久免费观看 | 中文字幕一级毛片 | 灌饱娇嫩H将军公主最新章节 | 国产18禁黄网站免费观看 | 日本无码MV免费视频在线 | 精品国产三级 | 蝌蚪视频窝在线播放 | 午夜精品久久久久久久2023 | 最近中文字幕高清免费大全1 | 免费中文字幕在线 | 一二三四中文日本无吗 | 黄色在线观看国产 | 亚洲v日韩v欧美在线观看 | 久久精品视频91 | 在线观看的免费视频网站 | 国产午夜高潮熟女精品AV | 国产精品一区二区精品视频导航 | 久久久国产精品网站 | 亚洲网站黄色 | 天天干天天曰 | 日韩精品AV一区二区三区 | 99re国产| 777午夜精品久久AV蜜桃小说 | 夜夜国产亚洲视频香蕉 | 国产AV一区二区三区天堂综合网 | 宝贝乖女好紧好深好爽老师 | 秋霞综合网| 波多野结衣黑人40分钟 | 国产精品人妻出轨AV大片 | 亚洲最新在线 | 亚洲三区视频 | 精品综合久久久久久97超人 | 中文字幕在线电影观看 | 午夜视频你懂的 | youjizzxxxx18| 免费视频久久 | 天天综合网色中文字幕 | 亚洲国产第一区二区三区 | 在线亚洲自拍 | 中文字幕人妻丰满熟女 | 欧美重口| 波多野结衣中文在线播放 | 真人做爰到高潮A级 | 什么网站可以看毛片 | 波多野结衣高清在线播放 | 久久婷婷丁香 | 近親五十路六十被亲子中出 | 亚洲理论在线a中文字幕 | 九九久久看少妇高潮A片特黄 | 欧美中文字幕 | 欧美综合激情 | h成人在线 | 久久草在线视频 | 欧美一区二区三区性 | 国精品无码一区二区三区在线A片 | 国产极品JK白丝喷白浆免费视频 | 国产一卡2卡3卡4卡公司 | 成人在线偷拍自拍视频 | 日韩在线欧美在线 | 久久久久久极精品久久久 | 免费看美女被靠的网站 | 亚洲一区二区三区无码中文A片 | 五月天婷婷影院 | 国产超级乱淫视频播放免费 | 日韩a视频 | 韩国精品一区二区三区四区五区 | 熟女AV之人妻熟女 | 涩五月婷婷 | 免费的中国黄网站大全 | 午夜4k最新福利 | 最近中文字幕视频完整版在线看 | 久久视频在线视频 | freev de0x x性欧美12| 欧美激情A片一区二三区 | 色综合视频一区二区三区 | 中文人妻AV久久人妻水蜜桃 | 在线观看日本视频免费 | 十分钟视频影院免费 | 最新色网址 | 国产精品亚洲污污网站入口 | 免费午夜无码无码18禁无码影院 | 亚洲中文字幕婷婷在线 | 91精品综合 | 在线观看午夜亚洲一区 | 男女啪啪做爰高潮全过图片 | 午夜视频在线观看区二区 | 成人妇女免费播放久久久 | 日本a在线看 | 日本中文字字幕乱码电影直播 | 成电影人免费网站 | 99久久久无码国产精品免费砚床 | 簧片视频在线观看 | jizz国产精品 | 欧美性受bbbxxx | 大陆精品福利网址导航在线 | 国产又粗又长又大A片激情 国产又粗又长又大精品A片 | 青青偷拍免费国产2024 | 全黄H全肉细节文NP 全肉的色情小說 | 五月婷婷久久草丁香 | 亚洲欧美日韩高清一区二区三区 | 欧美成人h版整片合集 | aa一级黄色片 | 最大胆裸体人体牲交666 | 天天草夜夜操 | 精品国产成人国产在线观看 | 日韩一区二区三区四区区区 | 亚洲这里只有精品 | 伊人久久综合成人亚洲 | 日日噜噜大屁股熟妇AV张柏芝 | 中文字幕第一区 | 亚洲国产三级在线观看 | 日本高清不卡码无码v亚洲 日本高清免费毛片大全 | 奇米网久久 | 久久亚洲精品国产亚洲老地址 | 黄网站视频在线观看 | 狠狠干天天干 | 日本精品中文字幕在线不卡 | 伊人成人网 | 亚洲好视频 | 欧美日韩视频一区二区在线观看 | 国产精品久久国产精品99 | 亚洲男人天堂2018av | 人妻奶水人妻系列 | 欧洲色情大片啪啪免费观看 | 亚洲欧美国产日本 | 精品久久影院 | 日韩国产免费一区二区三区 | 亚洲色图在线观看视频 | 91传媒制片厂果冻有限公司 | 要色地址 | 乱小说录目伦400篇 乱小说录目伦合集 | 337p日本亚洲 | 久久久久香蕉 | 国产欧美亚洲日韩图片 | 福利视频91| 亚洲精品AV一二三区无码 | 国产乱子伦视频大全 | 亚洲国产成人久久精品影视 | 日韩国产一区二区三区四区五区 | 国产色婷婷亚洲999精品小说 | 成人午夜视频在线 | 精品国精品国产自在久国产应用 | 亚洲欧美中文字幕5发布 | 国内免费自拍视频 | 亚洲网站免费看 | 天天射天天操天天色 | 99精品视频在线观看免费播放 | a v 在线视频 亚洲免费 | 娇妻的呻吟梦颖完整版 | 吃奶边摸叫床刺激A片视频 抽插内射高潮呻吟爆乳 | 日本欧美一区二区三区片 | 96精品国产高清在线看入口 | A片又大又粗又爽免费视频 A片做爰片仑理片免费看 | 久久久免费看少妇高潮A片特黄 | 日本电影周| 亚洲最大成人网色 | 日本阿v视频高清在线 | 无码一区二区三区 | 日本欧美中文字幕人在线 | 日产日韩亚洲欧美综合搜索 | 亚洲欧美一区二区三区图片 | 亚洲AV无码精品蜜桃 | 97色五月| 日日夜夜国产 | 国产精品视频成人 | 成人精品视频99在线观看免费 | 日本视频免费在线 | 91精品国产综合久久久久久 | 国产福利萌白酱在线观看网站 | 中文字幕熟女人妻伦伦在线 | 91精品一区二区三区在线播放 | 中文字幕亚洲无线码 | 国产黄 | 第一成人影院 | 三级网址大全 | 公车冰块PLAY张开腿调教 | 福利区站 | 欧美性生交A片免费看 | 97在线视频免费观看 | 91大神福利| 在线亚洲国产日韩欧洲专区 | 日本里番大全无码工口 | 日本一区二区三区免费A片 日本一区色情无码视频在线观看 | 蜜臀AV色欲A片无人一区 | 国产男人午夜视频在线观看 | 二色AV天堂在线 | 99综合色| 色综合综合色综合色综合 | 女人18毛片久久 | 色婷婷网| 黄色一级性生活视频 | 国产男女猛烈无遮挡A片软件 | 2020天堂在线亚洲精品专区 | 精品一区二区免费视频蜜桃网 | 桃子视频免费观看完整版HD | 亚洲精品免费日日日夜夜夜夜 | 欧美日韩有码 | 欧美视频第一区 | 亚洲乳大丰满中文字幕 | 欧美日韩精品在线 | 成人WWW色情在线观看 | 久久国产成人亚洲精品影院老金 | 国产成人精品一区二区三区视频 | 狠狠狠色丁香婷婷综合激情 | 久久99久久99小草精品免视看 | www.色网站| 亚洲一区二区三区色情爆乳 | 一女多男nP现代高H 一区二区三区好的精华液杨朝越 | 免费黄色在线网站 | 亚欧免费观看在线观看更新 | 边啃奶头边躁狠狠躁AV | 国产好大好爽久久久久久久 | 伊人网综合在线 | 伊人yinren6综合网色狠狠 | 91精品国产综合久久久久久 | 九九热视频精品在线观看 | 男人吃奶捏奶很爽视频免费 | 精品欧美一区二区三区久久久 | 狠狠撸下载 | 四虎永久免费观看在线 | 丁香天堂网| 亚洲AV成人一区二区三区在线看 | 特级毛片A片久久久久久 | 三级毛片在线播放 | 日韩欧美一区二区三区不卡在线 | 老色网站 | 久9视频这里只有精品试看 久草app黄 |