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

moda

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

xdso

10 Oct 2025(atualizado 10/10/2025 às 20h20)

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

Temas

Compartilhe

Lavrov cobra respeito a 'interesses' da Rússia em acordo de paz na Ucrania e n?o se compromete com reuni?o Putin-Zelensky'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 mega sena sorteio dia 12/05/2018its 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

'The space is like an instrument' How Notre-Dame found its voice after fire muffled it.txt

Aterro de Gramacho?tem capacidade para acumular 23 milh?es de litros de chorume, evitando contamina??o do manguezal foco e os abrangente lazer.

GRáFICOS

nos eixos

1070_-_Newark_New_Jersey_-_Market_Street_Railway.txt

DF em alerta para perigo de chuvas intensas conhecimento e os ponto quente entretenimento.

Navegue por temas

Mulher viraliza ao ensinar como colocar genitor na Justi?a: 'N?o é ajuda, é obriga??o' Cena de 'Vale Tudo' faz disparar buscas por pedidos de pens?o alimentícia no aplicativo da Defensoria; entenda Ceramica artesanal conquista espa?o cultural em Petrópolis Moradores do DF comemoram chuva na capital; veja imagens Busca de petróleo na Margem Equatorial é 'legítima' e impacto pode ser 'minimizado', diz parecer acadêmico Dois assaltos à m?o armada a motociclista s?o registrados no Parque Guarus em Campos ; vídeo Mulher viraliza ao ensinar como colocar genitor na Justi?a: 'N?o é ajuda, é obriga??o' Desenvolvimento sustentável piorou ou estagnou na maiora das cidades brasileiras em dez anos Autoridades de Hong Kong instalam ninhos artificiais para salvar cacatuas amea?adas de extin??o Prontos para mais calor? Outono come?a nesta quinta-feira; veja como fica o tempo no DF
91久久国产综合精品 | 亚洲精品久久久久中文字幕二区 | 性福天堂网站 | 给啪啪视频免费观看 | 影音先锋av电影 | 女的毛片毛片毛毛片毛毛毛毛片 | 野外xxx| 99久久中文字幕伊人情人 | 97SE亚洲精品一区二区 | 亚洲免费福利在线视频 | 97免费看 | 欧美丰满大乳无码少妇 | 婷婷情色| 日本一区免费看 | 亚洲午夜久久久精品影院视色 | 男女无遮挡猛进猛出免费观看视频 | 久久人妻AV一区二区软件 | 色琪琪丁香婷婷综合久久 | 亚洲一区二区三区在线播放 | 尹人成人 | 久久精品亚洲综合一品 | 99精品丰满人妻无码A片 | 无套内射视频囯产 | 第一区 | www.伊人网 | 人善交video欧美| 小小视频资源免费观看高清 | 日产学生妹在线观看 | 公交车上荫蒂添的好舒服口述小说 | 欧美黑人在线 | 丁香视频在线 | 久久精品国产福利国产秒 | 嗯 好深 啊 用力 哦 嗯 啊 | 欧美重口另类 | 欧美老妇69交 | 国产一区二区内射最近更新 | 国产最新在线视频 | 一个人看的高清视频日本 | 2021乱码精品1区2区3区 | 韩国伦理在线电影免费观影网站 | 手在线播放波多野结衣 | 亚洲深夜视频 | 乱码精品一卡2卡二卡三 | 久久久久免费精品国产小说 | 人人做人人干 | 校花被扒衣吸乳羞羞漫画 | 国产日韩视频在线观看 | 夜夜操狠狠干 | 春暖花开性论坛公告区 | 欧美黄色大片免费观看 | 亚洲激情中文 | 欧美又粗又硬又大久久久 | 亚洲日本欧美产综合在线 | 黄色的网站在线观看 | 色五月在线视频 | 久久精品国产99久久无毒不卡 | 亚洲精品久荜中文字幕 | 国99久9在线 | 免费 | 四虎影视免费观看高清视频 | 天天干天天草天天 | 天堂网www中文在线 天堂网www在线资源中文 | 老司机午夜免费福利 | 久久99精品久久久久久综合 | 日本无码看片视频一区 | 九九视频九九 | 丰满护士巨好爽好大乳小说 | 国产男女猛烈无遮挡A片软件 | 欧美乱妇色情大片在线观看免费 | 激情aa视频试看免费 | 欧美日韩高清一区二区三区 | 成全免费高清观看在线 | 欧美成人日韩 | 精品AV国产一区二区久久小说 | yellow字幕网 中文字幕 | 少妇饥渴放荡的高潮喷水 | 97亚洲熟妇自偷自拍另类图片 | 日韩色天使综合色视频 | 中文字幕日韩女同互慰视频 | 国产产乱码一二三区别免费 | 亚洲中文字幕无码一久久区 | 少妇做爰片AA | 亚洲国产35p | 国产免费A片好硬好爽好深漫画 | 高清偷自拍第1页 | 人妻插B视频一区二区三区 人妻丰满熟妇V无码区A片免费看 | 久久日本无码一区二区三区 | 亚洲三级中文字幕 | 最近最全中文字幕 | 国产亚洲精品久久久久久禁果TV | AV国産精品毛片一区二区小说 | 久久免费高清视频 | 人妻体体内射精一区二区 | 国产亚洲精品久久久久久久久动漫 | 久久亚洲精品AV无码四区 | 国产毛A片久久久久久无码 国产麻豆一级在线观看 | 特色毛片| 666西西人体做爰大胆图片 | 五月婷婷开心中文 | 麻豆国产精品久久人妻 | 亚洲精品久久AV无码麻小说 | 日本高清一二三不卡区 | 嫩草伊人久久精品少妇AV网站 | 国产成人综合久久 | 日本不卡一区二区三区 最新 | 中文字幕乱码免费专区 | 六月丁香六月综合缴情 | 91尤物在线 | 麻豆AV久久无码精品久久 | 色AV亚洲AV永久无码精品软件 | 一本久道在线 | 乱肉合集乱500篇小说奶水 | 国产a高清 | 中文乱码字幕视频观看网站免费 | 伊人久久丁香色婷婷啪啪 | 北女网 | 综合无码色情一区二区 | 午夜影院一区二区三区 | 国产又色又爽又黄的免费站 | 免费国产成人高清在线观看网站 | 成人免费午夜在线观看 | 日本无码人妻丰满熟妇A片 日本无码人妻丰满熟妇5G影院 | 精品国产高清毛片A片看 | 国产亚洲麻豆精品AA片在线观看 | 黄视频网站在线看 | 黄色日b视频 | 欧美性高清极品猛交 | 色欲人妻AAAAAAA无码 | 水蜜桃成视频人在线播放 | 久久99精品久久只有精品 | 成人黄18免费视频 | 91久久香蕉国产线看 | 久操视频在线 | 95国产精品人妻无码久 | 亚洲免费无码中文在线 | av岛国小电影在线观看 | 好大好深我高潮了A片 | 永久免费看MV网站入口亚洲 | 九九精品国产亚洲A片无码 九九操视频 | 亚洲你我色 | 日产精品高潮呻吟AV久久 | WWW亚洲精品久久久乳 | 想见你电影版免费观看 | 免费在线观看黄色的网站 | 久久久久久亚洲精品不卡 | 亚洲熟女乱色综合亚洲小说 | 午夜精品久视频在线观看 | 亚洲黄毛片 | 97伦色| 国产一区二区三区四区精华 | 国产精品第3页 | 国产最新在线视频 | 天天做天天爱天天综合网 | 热久久国产欧美一区二区精品 | 97国产精华最好的产品在线 | 欧美视频在线高清在线观看 | 五月婷婷亚洲综合 | 日韩欧美国产免费看清风阁 | 伊人2024视频免费观看 | 欧美日韩亚洲一区二区三区在线观看 | 一个人看的www免费观看视频 | 久久国产成人亚洲精品影院老金 | 六月丁香在线视频 | 张馨予疯狂床照视频 | 国产精品扒开做爽爽爽的视频 | 久久综合中文字幕 | 国产男人的天堂在线视频 | 视频二区 中文字幕 欧美 | 国产精品日本不卡一区二区 | 国产免费啪啪 | 公和我做爽死我了A片N | 漂亮人妻洗澡被公强欧美精品无码 | 久久亚洲A片COM人成A | 雨天车站H肉动漫在线观看 玉女jy荡小说 | 99在线精品国自产拍 | 黄色成人在线 | 中文字幕亚洲精品久久AV | 亚洲国产午夜精品乱码 | 国产97碰免费视频 | 成人国产精品一级毛片了 | 男女啪啪18禁无遮挡激烈直播 | 久久91综合国产91久久精品 | 亚欧免费观看在线观看更新 | 日本a在线免费观看 | 人妻无码一区二区三区欧美熟妇 | 内射糙汉高H小说 | 日韩h视频 | 日本视频中文字幕一区二区 | 国产精品人妻免费精品 | 日韩福利在线观看 | 亚洲精品久久7777777 | 国产午夜视频在线观看 | 国产成人精品男人免费 | 亚洲色图激情小说 | 97色伦在线观看 | 香蕉成人伊视频在线观看 | 亚洲三级中文字幕 | 日本欧美一区 | 国产精品久久久久久久久ktv | 久久视频这里只精品99 | 吉吉影音先锋av资源网 | 一级片麻豆| 日韩无人区码卡二卡3卡4卡介绍 | 亚洲精品一区二区三区无码A片 | 小77论坛 唯美清纯 逍遥五月天 | 精品人妻少妇一区偷拍视频 | 亚洲A片无码精品毛片色戒 亚洲A片无码精品毛片 | 日韩不卡在线播放 | 亚洲另类激情综合偷自拍图 | 亚洲精品一区二区三区精品 | 亚洲爽爽爽爽爽A片黄漫画 亚洲天天干 | 小秘书夹得好紧太爽H大肉乳 | 日韩色情无码一本二本三本 | 亚洲日本va| 国产二级片 | 中文天堂www资源 | 国产精品成人A片在线果冻 国产精品大尺度尺度视频 国产精品对白交换视频 | 亚洲日本一期二期三期精华液 | 超碰caopro熟女m超碰分类 | 日本亚洲欧洲免费旡码 | 帅哥摸舔美女全身视频 | 五月情天| 久久久久久噜噜噜久久久精品 | 日本高清视频中文无码 | 日本无码人妻精品一区二区视频 | 地狱天堂2019完整版免费观看 | 国产网站黄 | 免费观看欧美一级牲片一 | 另类 校园 人妻 武侠 | 色五五月五月开 | 中文自拍 | 天天干天天草天天 | 无码人妻AV一区二区三区96 | 亚洲欧美色鬼久久综合 | 伊人久久大香线蕉免费视频 | 欧美性受xxxx白人性爽 | 中文字幕不卡免费高清视频 | 欧美深深色噜噜狠狠yyy | 鲁丝一区二区三区不属 | 久久综合久久久 | 国产精品永久在线 | 午夜免费观看视频 | 97色在色在线播放 | 工口里番全彩无肉码3D啪啪 | 欧美色天使 | xx顶级欧美熟妞xxhd | 欧美人与动牲交免费观看视频 | 午夜西瓜视频在线观看 | 亚洲日本黄色 | 亚洲精品一区二区三区四区五区 | 全球热恋迅雷 | 欧美激情一区二区三区 | 蜜臀AV色欲A片无码一区二区 | 99国产亚洲精品久久久久久 | 中文字幕大香视频蕉免费 | 99麻豆精品国产人妻无码 | 兽交XXXXBBBB视频. | 日韩美一区二区 | 娇喘呻吟欲仙欲死的娇妻 | 无码精品日本一区二区桃花岛 | 一区不卡二区卡 | 色情 免费 视频在线观看 | 天天做夜夜做久久做狠狠 | a亚洲欧美中文日韩在线v日本 | 亚洲丰满爆乳熟女在线观看 | 五月色图 | 三级网络免费地址在线观看 | 中文字幕日韩精品一区口 | 白洁张敏被5人玩一夜 | 一区二区三区美女视频 | 国产色情A久久无码影 | 老汉网站 | 中文字幕乱码人在线视频1区 | 国产毛A片久久久久久无码 国产麻豆一级在线观看 | 免费无码又爽又刺激A片小说 | 成人黄色在线网站 | 粉泬毛多水多30岁女人都是水 | 久久免费视频1 | 日韩精品电影在线 | 日韩精品中文乱码在线观看 | 亚洲AV成人一区二区三区在线看 | 久久久九九精品国产毛片A片 | 亏亏插曲叫疼的免费网址 | 国产福利萌白酱在线观看网站 | 欧美一卡2卡3卡四卡海外精品 | 国产精品无码视频一区二区 | 亚洲国产毛片 | 久久久久久久网 | 国精品人妻无码一区二区三区软件 | 撸撸在线影院 | 国产精品人妻99一区二区 | 无码人妻中文在线佐佐木明希 | 永久免费看黄A片无码软件 永久免费毛片 | 波多野结衣中文字幕在线视频 | 九九九精品视频 | 无码人妻欧美丰满熟妇区毛片 | 免费在线视频日本 | 亚洲产国偷V产偷V自拍色情 | 久久综合伊人中文字幕 | 色黄网站大全 | 亚洲另类激情综合偷自拍图 | 最好看的2018中文在线观看 | 四虎在线视频免费观看 | 一级特黄国产高清毛片97看片 | 黑人巨大进入白人美女视频 | free chinese 国产精品 | 三级黄色免费观看 | 免费观看欧美一级牲片一 | 国产亚洲精品久久久久小 | 国产肥熟女老太老妇A片 | 91精品全国免费观看老司机 | 中文字幕资源网 | 射久久久 | 久久网免费 | 国产又大又粗又硬的A片 | 中文毛片无遮挡高潮免费 | 免费免费啪视频观看视频 | 欧美乱大交xxxxx在线观看 | 欧美国产日本精品一区二区三区 | 最新777奇米影视四色 | 亚洲欧美一级久久精品 | 日日麻批免费视频播放40分钟 | 国产精品69人妻无码久久久 | 91福利在线播放 | 国产一区二区三区四区精华液毛 | 国农村精品国产自线拍 | 韩国漂亮老师做爰BD在线看 | 各种场合肉H校园1V1 | 被黑人20厘米强交 | 成人国产精品免费网站 | 日本一卡二卡三四卡在线观看免费视频 | 一本到在线高清观看 | 日日噜噜噜噜人人爽亚洲精品 | 国产性夜夜性夜夜爽91 | 免费精品一区二区三区A片在线 | 中字幕视频在线永久在线 | 波多在线视频 | 欧美午夜精品一区二区蜜桃 | 综合色久| 久久精品国产精品亚洲艾 | 在线观看视频免费精品视频 | 韩剧你是我的命运 | 午夜福到在线100集 午夜福利1692免费视颍 | 纯肉高H肉辣浪荡NP论J | 日本红怡院亚洲红怡院最新 | 丁香五月综合缴情电影 | 美国色综合 | 涩涩动漫网站入口 | 粉嫩AV久久一区二区三区王玥 | 先锋影音波波资源网 | 国产精品系列在线观看 | 丁香花在线观看视频在线 | 日本一区二区三区精品国产 | 午夜婷婷精品午夜无码A片影院 | 和少妇人妻邻居做爰无码 | 91精品久久久久久久久久小网站 | 亚洲成av人在线视 | 中中文字幕亚洲无线码 | 成人国产mv免费视频 | 色无极亚洲色图 | 96精品视频在线播放免费观看 | 免费电影在线看 | 国产一级网站 | 高强度辣爽文 全是肉NP | 国产在线二区三区熟女A级 国产在线播放精品视频 | 97人人澡人人爽人人模 | 天天操天天干天天射 | 欧美一曲二曲三曲的 | 国产欧美精品AAAAAA片 | 成人片毛片A片免费观看欧美 | 日韩三级在线观看 | 国产做爰完整版在线观看 | 波多野结衣人妻渴望A片 | 国产精品久久国产国精品 | 一个人看的视频在线观看高清 | 影音先锋中文AV资源网 | 又硬又粗进去好爽A片免费多人玩 | 黄色三级视频 | 樱花草视频在线观看免费资源WWW | 在线国产a不卡 | 亚洲国产午夜精品乱码 | 男男GV白嫩小受GV在线播放 | 最近韩国日本免费观看百度 | www伊人| 欧美videos娇小 | 日本高清中文字二区不卡 | 久久午夜免费鲁丝片 | 精品久久久久国产 | 抽插内射高潮呻吟爆乳 | 欧美亚洲亚洲日韩在线影院 | 免费精品一区二区三区A片 免费黄色欧美 | a级黄色片网站 | 免费看欧美成人A片无码 | 我就是要当着他的面做你 | 国产精口品美女乱子伦高潮 | 在线播放精品 | 日日鲁鲁鲁夜夜爽爽狠狠 | 最新中文字幕在线资源 | 亚洲精品A片99久久久久 | 麻豆免费观看高清完整视频在线 | 99精品久久久久久国产人妻 | 久久无码欧美一二三区 | 波多野结衣99 | 中文无码在线观 | WWW色情成人网站 | 免费精品国产自产拍在线观看图片 | 欧美综合色 | 日本一区不卡在线 | 老司机无码精品A | 日本a级在线 | 日韩一级视频 | www.狠狠操 | 色爱区综合五月激情 | 天天撸天天射 | 无码一区二区三区亚洲人妻 | 亚洲.欧美.在线视频 | 四虎永久免费影院在线 | 中文字幕 在线 欧美 日韩 制服 | va亚洲va日韩不卡在线观看 | 狠狠色丁香婷婷综合激情 | 国产中文字幕免费观看 | 免费观看添你到高潮视频 | 我看一级黄色片 | 欧美一级第一免费高清 | 国产乱子伦农村叉叉叉 | 91久久香蕉国产线看 | 国模超超| 成人在免费视频手机观看网站 | 久久AV无码乱码A片无码 | 国产一级视频在线观看网站 | 欧美极品欧美日韩 | 精品一区二区三区免费毛片 | 国产成人福利免费观看 | 日韩精品视频免费观看 | 色视频免费版高清在线观看 | 丁香六月欧美 | 产传媒61国产免费 | 美女大乳图片 | 麻豆免费在线观看 | 亚洲色欲色欲www在线观看 | 大片性播放器 | 在线亚洲午夜片AV大片 | 精品无码AV在线观看APP | 国产午夜福利视频第三区 | 琪琪热码在线中文字幕 | 91呻吟丰满娇喘国产区 | 欧美一区二区三区久久综 | 一级无毛片 | 国产成人精品综合久久久软件 | 吉泽明步 bt | 久久毛片免费看一区二区三区 | 在线观看视频你懂得 | 国产午夜在线视频 | 婷婷电影网 | 欧美z00sk00lkntty猪 | 色狠狠一区二区 | 西西艺术大胆大尺度艺 | 一个人看的手机视频www | 久久久国产精品无码人妻 | 日本在线免费观看视频 | 亚洲国产成人久久一区久久 | 又大又爽又黄无码A片在线观看 | 日本少妇裸体做爰高潮片 | 99精品无人区乱码1区2区3区 | 黄到下面流水的爽文很污的情话 | 国产精品黄在线观看免费软件 | 国产精品久久久久久久伊一 | 粗长巨龙挤进美妇 | 免费精品国产 | 777片理伦片在线观看 | 欧美精品不卡 | 辽宁老熟女高潮狂叫视频 | 年轻的馊子8HD中文字幕 | 国产三级精品三级在专区中文 | 亚洲欧美一区二区三区麻豆 | 国产成人精品综合网站 | 色婷婷一区二区三区四区成人网 | 国产成人一区二区三中文 | 五月婷婷激情第五季 | 日韩成人在线网站 | 日本视频中文字幕 | 四虎影视影院免费观看 | 人妻在卧室被老板疯狂进入国产 | 宅男噜噜噜66 | 日本午夜大片免费观看视频 | 国精产品网曝黑料在线观看 | 护士毛片 | 亚洲成人福利在线 | 在线小视频 | 国产二级一片内射视频插放 | 亚洲成人一区在线 | 国产不卡视频在线观看 | 久久精品极品盛宴观看 | 在线伦理电影网 | 久久riav.com | av蜜桃| jizz国产精品网站 | 成人午夜18免费看 | 国产一级在线播放 | 国产在线观看首页123 | 欧美视频一区在线 | 天堂网在线www资源在线 | 中国黄色在线观看 | 五月天婷婷在线视频国产在线 | h污小舞白丝玉足榨精小说 h重口味小说 | 手机上免费看twitch的加速器 | 欧美freesex黑人又粗又大 | 窝窝影院午夜看片毛片 | 欧美日韩a级a | 国产亚洲精品AV片在线观看播放 | 色中色论坛网址 | 精品人妻伦一二三区久久AAA片 | 日本日本熟妇中文在线视频 | 欧美三级在线电影免费 | 美女扒开腿让男人桶视频在线观看 | 免费看成人播放毛片 | 欧美日韩亚洲综合2019 | 97在线视频免费观看 | 99在线观看免费视频 | 宅男在线永久免费观看 | 国产真实乱子伦清晰对白 | 91精品国产综合久久久久 | 久久国产热 | 国产乱子轮XXX农村 国产伦精品一区二区三区免费 | 国产成人高清亚洲一区91 | 国产亚洲精品精品精品 | 日韩一区二区视频在线观看 | 美女乱子伦高潮 | 国产女人与黑人在线播放 | 日韩成人免费在线 | 日本精品无人区卡1.卡2视野 | 亚洲AV國產国产久青草 | 免费观看全黄做爰 | 邻居寂寞人妻中文字幕 | 日韩欧美一及在线播放 | 精品无人乱码一区二区三区的优势 | 国产激情无码激情A片小说 国产激情艳情在线看视频 国产极品JK白丝喷白浆免费视频 | 国内精品久久久久久中文字幕 | 偷拍快播 | 色情狠久久AV五月综合五月 | 国产精品人妻一区二区99 | 99热亚洲 | 日日干日日草 | 一个人看的免费视频www免费 | 亚洲欧美日本综合一区二区三区 | 欧美特级限制片高清 | 久久高清内射无套 | 亚洲国产精品日本无码网站 | 欧美精品一区二区在线观看 | 亚洲精品久久久午夜麻豆 | 免费伦费一区二区三区四区 | 日本无码看片视频一区 | 伊人久久大香线蕉综合99 | 在线欧美精品一区二区三区 | 中文无码有码亚洲 欧美 | 免费观看久久精品视频 | 欧美中文在线 | 黄色在线观看国产 | 少妇看A片偷人精品视频 | 陪读妇乱子伦 | 日韩在线不卡视频 | 久久国产一久久高清 | 亚洲色拍偷拍精品一区二区麻豆 | 中文字幕人妻少妇引诱隔壁 | 向井杏| 国产在线99 | 色婷婷综合网 | 滋润岳的性饥渴花落伴官途 | 在线天堂最新版资源 | 美女直播洗澡的软件下载 | 国产日产欧产精品精品APP | 四虎影视在线看 | 中文字幕久久第13页 | 81制片厂传媒果冻传媒一区 | 少妇做爰高潮呻吟A片免费 少妇做爰又色又紧夜视频 谁有三级网站 | 四虎影视在线影院在线观看免费视频 | 91精品免费久久久久久久久 | 色网站免费看 | 久久久免费精品 | 国产拍揄自揄免费观看 | 91久久精品国产亚洲 | 日本工口里画番全彩 | 国产FREESEXVIDEOS性中国 | 天天爱夜夜操 | 香港激情黄三级在线视频 | 嗯求你插我H文 | 国产精品高潮呻吟爱久久AV无码 | 免费的黄网 | 美女天天操 | 黄色片网站观看 | 亚洲v日韩v欧美在线观看 | 国产又粗又爽又猛的视频A片 | 一级毛毛片毛片毛片毛片在线看 | 幻女与人xx00毛片免费 | 无码人妻丰满熟妇啪啪区日韩久久 | 日韩色道 | 国产精品成人影院在线观看 | 成人H动漫AV无码无遮挡A片 | 三级中国免费的 | 糖心vlog国产剧免费观看 | 翁公的巨物挺进了密进 | 亚洲乱妇老熟女爽到高潮的片 | 亚洲精品国产成人无码区A片 | 免费v片在线看 | 最近免费中文视频2018 | 青青草一区 | 精品自拍农村熟女少妇图片 | 神马影院夜伦鲁鲁片 | 不卡中文字幕在线观看 | 99re热在线视频 | 午夜在线播放 | 草久热 | 国产porn在线| 苍井空波多野结衣AA片 | 日韩一级片在线观看 | 一级毛片一级毛片免费毛片 | 蝌蚪网站免费观看 | 少妇特黄A片一区二区三区免费看 | 日韩视频第二页 | 久久久夜间小视频 | 四虎免费最新在线永久4HU | 成人国产综合 | 嗯好舒服嗯好猛嗯好大不要 | 国产精品反差婊在线观看 | 妺妺晚上吃我精子黄文 | 国产熟妇精品高潮一区二区三区 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 91天堂最新在线观看 | 亚洲黄色免费观看 | 亚洲日本在线观看视频 | 91精品一区二区三区在线播放 | 国产日韩综合 | 精品午夜视频 | 久久久午夜精品福利内容 | 在线免费观看波多野结衣 | 日本成人一区二区 | 色情成人免费视频激情在线观看 | 色情成人吃奶激情视频在线播放 | 人人干97| 你好湿呀!小妖精快叫 | 99视频网站| 九一精品视频 | 中文无码字慕在线观看 | 青草青草久热国产精品 | 无码精品AV久久久免费 | 永久在线免费 | 妞色网| 太粗啦太硬了受不了 | 欧美 亚洲 日韩 中文2019 | 欲香欲色天天综合和网 | 婷婷射精AV这里只有精品 | 一级黄色片免费看 | 出轨的女人国语在线观看 | 欧美国产综合日韩一区二区 | 国产人妻一区二区三区久 | 免费老外的毛片清高 | 91在线一区二区三区 | 麻豆免费观看高清完整视频在线 | 亚洲色图日韩 | 欧美激情欧美狂野欧美精品免费 | 欧美精品www | 男女国产猛烈无遮挡色情 | 爽死你个放荡粗暴小淫货双女视频 | 唇齿之间 | 天天干天天干天天干天天干 | 久久久久久99 | 最大胆裸体人体牲交666 | 热99这里只有精品 | 免费国产成人高清在线网站东京 | 国产VA精品午夜福利视频 | 玫瑰之战免费观看全集在线 | 婷婷五月久久精品国产亚洲 | 99精品视频在线观看免费 | 欧美性生交BBBXXXXX无码 | 久热热热 | 国产精品27页 | 四虎影视在线看 | 免费黄色资源 | 97伦理97伦理2018最新 | 久久久最新精品 | 日本高清免费不卡在线 | 网友自拍人妻偷拍wwwa7 | 最新中文字幕日本 | 美女快播第一网 | 亚洲一区日韩一区欧美一区a | 免费无毒a网站在线观看 | 五月色丁香婷婷网蜜臀AV | 在线日韩欧美一区二区三区 | 最新国产在线熟女视频 | 第七色男人天堂 | 国产美女一区二区 | 免费看影片的网站入口 | 日本精品人妻无码久久久 | 成都影院免费高清完整版 | 天天干一干| 国产免费观看黄A片又黄又硬小说 | 日本污污网站 | 亚洲精品成A人在线观看 | 日韩不卡一卡二卡3卡四卡2021免费 | 酒色成人| 青青热久免费精品视频在app | 午理论理影片被窝 | 古风一女N男到处做高H | 最近最新2019中文在线观看 | 日韩欧美不卡一区二区三区 | 中文字幕亚洲区 | 伊人无码高清 | 波多野结衣中文字幕一区二区三区 | 成人午夜小视频 | 色女网| 亚洲综合色婷婷 | 日本99久久九九精品无码 | 少年巴比伦免费完整在线观看 | 青青热久免费精品视频在首页 | 亚洲一区二区三区四区五区六 | 国产黄色片在线播放 | 免费无码一区二区三区蜜桃大 | 天天鲁一区摸一摸爽一爽 | 婷婷射精AV这里只有精品 | 久久久国产精品网站 | 日本一区二区三区免费播放视频站 | 伦理片免费秋霞e | 亚洲精品一区二区另类图片 | 女人被添全过程A片试看V | 日韩一级免费毛片 | 国产亚洲精品久久综合阿香蕉 | 巨乳波霸在线中文字幕 | 少妇人妻丰满做爰XXX | 久久国产成人精品Av | 国产成人精品视频VA片 | 美女翘臀白浆直流视频 | 99精品国产免费久久久久久下载 | 免费精品国偷自产在线读大二 | 蜜桃999.com | BT天堂网在线WWW中文 | 宝贝乖女好紧好深好爽老师 | 国产精品人妻无码久久网站 | 五月天婷婷在线观看视频 | 国产成人AV在线播放影院 | 黄色在线网站观看 | 国产精品成人四虎免费视频 | 久草日B视频一二三区 | jizzzz亚洲丰满xxxx | 国产精品久久永久免费 | 国产无遮挡裸体免费视频A片软件 | 综合人妻久久一区二区精品 | 色综合久久98天天综合 | 美女搭车色诱司机 | 狠狠色噜噜狠狠狠狠网站视频 | 最近韩国日本免费观看百度 | 天堂资源在线中文在线 | 99久久就热视频精品草 | 特级aa 毛片免费观看 | 又硬又粗进去好爽A片 | 亚洲高清免费观看 | 国产女同一区二区三区五区 | 老湿影院视色情下 | 亚洲 日本 中文字幕 制服 | 日韩精品免费视频 | 色翁荡熄又大又硬又粗又视频软件 | 四虎国产成人免费观看 | 亚洲无吗精品AV九九久久 | 一级毛片免费毛片毛片 | 二级毛片在线观看 | 欧美色成人tv在线播放 | 亚洲 欧美 丝袜 | 午夜两性剧场 | 国产成人不卡亚洲精品91 | 有没有看片的免费资源 | 草莓丝瓜视频下载-丝瓜视18岁 | 国产成人片 | 影视AV久久久噜噜噜噜噜三级 | 欧美特级特黄AAAAA片 | 国产乱子伦视频大全 | 幸福人生护士 | 国产精品热久久高潮AV袁孑怡 | 午夜亚洲影院在线观看 | 久久久久久久久久免观看 | 久久久人精午夜精国 | 亚洲精品一区二区三区麻豆 | 日韩精品视频免费观看 | 成年啪啪网站免费播放看 | 欧美日韩免费一区二区三区 | 哪个网站可以看正版动作片 | 久久99热只有频精品6狠狠 | 97精品在线 | 久久在精品线影院 | 久久久国产精品免费 | 蝌蚪网站免费观看 | 91草草| 久久精品国产三级不卡 | 幸福人生护士 | 公和我做爽死我了A片AAB | 日韩成人黄色片 | 王朝影院| www.色综合| 丁香五月激情缘综合区 | 国产精品美女乱子伦高潮 | 每章都有肉并且非常黄的小说 | 国产麻豆9l精品三级站 |