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

explorar

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

gchqbh

12 Oct 2025(atualizado 12/10/2025 às 01h29)

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

Temas

Compartilhe

'Harry Potter': HBO divulga primeira imagem de Nick Frost como Hagrid'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 oq é apostoits 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

10_reasons_both_Harris_and_Trump_can_be_hopeful_of_victory.txt

Mais de 20 filmes de Fran?ois Truffaut, um dos fundadores da Nouvelle Vague, voltam aos cinemas entretenimento e os foco moda.

GRáFICOS

nos eixos

_Watch_The_Lionesses_London_victory_parade_from_the_sky.txt

Exposi??es no Rio de Janeiro: FotoRio no CCJF, novo ciclo do Pa?o; Parada 7 e mais explorar e os foco ponto quente.

Navegue por temas

Paraná recebe previs?o de chuvas e tempestades Caminh?o que transportava trabalhadores é atingido por trem em cruzamento do Paraná e homem é socorrido em estado grave 'Dias Perfeitos': adapta??o do livro de Raphael Montes traz perspectiva inédita de personagem Santuário em Curitiba guarda relíquia de Carlo Acutis, 1o santo da gera??o millennial, e prepara espa?o para exposi??o diária O corpo fala e o cérebro escuta Chef do Fairmont dá dicas para misturar terra e mar em receita elegante e rápida; veja as aulas desta sexta (29) Igreja do PR faz missas e celebra??es sem telhado, após estrutura desabar durante chuva de granizo Rio Gastronomia retorna para último fim de semana com aulas sobre etiqueta e delícias do Vale do Café 'Harry Potter': HBO divulga primeira imagem de Nick Frost como Hagrid Strogonoff de nozes: aprenda a preparar receita que leva cinco ingredientes
9亚洲精华国产精华精华液 av大片 | 日韩精品你懂的在线播放 | 99r热| 中出内射颜射骚妇 | 波多野结衣中文字幕一区 | 国产精品成人h视频 | 伊人成人久久 | 91午夜精品亚洲一区二区三区 | 麻豆AV久久AV盛宴AV | 日b免费视频 | 日韩精品卡4卡5卡6卡7卡3卡 | 亚洲熟少妇在线播放999 | 国产无遮挡A片又黄又爽 | 伊人色爱久久综合网 | 黑人干日本美女 | 扛起老师雪白双腿进入小说 | 宅男噜噜噜66 | 苍井空三点高清线视频 | 一级毛片不卡 | jizz在亚洲| 国产传媒精品1区2区3区 | 夜鲁夜鲁夜鲁视频在线观看 | 日韩精品视频在线观看免费 | 亚洲中文在线精品国产 | 老司机午夜剧场 | 免费看999永久A片视频 | 日韩三级| 色情婷婷综合乱埥亚洲 | 草莓app色版| 国产成人无码视频一区二区三区 | 自拍小电影 | 米奇影院888奇米色99在线 | 97在线精品视频免费 | 日韩视频一 | 亚洲 日韩 色 图网站 | 爱色影音 | 免费看国产成年无码A片 | 啪啪东北老熟女45分钟 | 欧美日韩一线 | 91视频国产一区 | 丁香婷婷色综合 | 免费啪视频观免费视频 | 三级韩国三级日产三级 | 欧美小伙与老太做爰视频 | 婷婷五月俺也去人妻 | 亚洲日韩精品射精日 | 香港三级日本三级人妇网站 | 五月天婷婷爱 | 青青草a免费线看 | 午夜久久免影院欧洲 | 国产毛多水多高潮高清 | 狠狠色丁香婷婷综合激情 | 波多野结衣免费线在线 | 国产极品JK白丝喷白浆免费视频 | 久草在在线免在线观看视频 | 黄色片网站观看 | 亚洲精品久久久久久不卡精品小说 | 清纯校花挨脔日常H惩罚视频 | 国产精品自产拍在线观看中文 | 伊人大香线蕉精品在线播放 | 意大利军营医生1976 | 欧美性爱 综合 | 免费国产成人高清在线观看网站 | 久久影院一区二区三区 | 欧美一区亚洲 | 亚洲欧美中文日韩v在线 | 韩国伦理在线观看 | 欧美在线一级视频 | 日本欧美一区二区三区乱码 | 精品人妻无码一区二区三区4 | bt天堂在线WWW中文 | 免费超级淫片日本高清视频 | 成人黄 在线播放 | 黄页在线免费观看 | 成人久久欧美日韩一区二区三区 | 美国伊人网| 亚洲午夜精品AV无码少妇 | 国精产品999永久中国有限公司 | 成人乱码一区二区三区A片 成人乱人乱一区二区三区 成人区人妻精品一区二欧美毛片 | 夂久亚州精华国产精华华液 | 天天影视网色 | 日本漫画之吃奶乳漫画 | 男人舔女人的阴部黄色骚虎视频 | 九热视频 | 日本三级韩国三级香港三级 | 真人性做爰AA片少妇 | 69SEX久久精品国产麻豆 | 亚洲婷婷六月 | 韩剧你是我的命运 | 狠狠撸干性图片 | 特级做A爰片毛片免费看无码 | 欧美一区二区三区精品 | 啊快进去好深用力啊使劲 | 91福利国产在线观一区二区 | 五月婷婷丁香花综合网 | 免费无码又爽又刺激A片软 免费无码又爽又刺激A片小说在线 | 久久久九色综合亚洲成色777 | 99精品久久久久久久免费看蜜月 | WWW九九九毛片无码一区二区 | 九九精品久久久久久久久 | 色五月视频| 超碰caopro熟女m超碰分类 | 国产三级在线免费 | 国产a不卡片 | 国产精品久久久久久99人妻精品 | 最新影音先锋av资源台 | 我把我的肥岳日出水来多少集 | 亚洲成人国产精品 | 最新亚洲一区二区三区四区 | 在线观看免费a∨网站 | 美女被C污黄网站免费观看 美女被抽插舔B到哭内射视频免费 | 日本一区二区三区四区在线观看 | 精品国产免费久久久久久 | 欲求不満の人妻松下纱荣子 | 国色天香精品一卡2卡三卡4卡 | 午夜福利小视频400 午夜副利电影手机高清在线直播app下载 | 乳交高H糙汉宠文 | 中文字日产幕码三区的做法大全 | 99热久久久无码国产精品性麻豆 | 欧美在线视频网 | 久久亚洲精品玖玖玖玖 | chinesegay又粗又大短视频 | h片免费观看| 国产激情黄A片无遮挡 | 依依网站 | 蜜桃臀AV高潮无码 | 久久免费精品 | 国产手机视频在线 | 一本色道久久综合一区 | 亚洲精品一卡2卡3卡4卡乱码 | 精品欧美亚洲韩国日本久久 | 宅男在线永久免费观看 | 久久婷婷五月综合色丁香 | 国产精品美女WWW爽爽爽视频 | 久久97久久99久久综合 | 亚洲 素人 字幕 在线 最新 | 999毛片 | 国产精品久久久亚洲第一牛牛 | 翁公又大又粗挺进了我 | 国产熟妇BBWBBWBBW歼尸 | jizz欧洲| a级高清免费| 亚洲精品又粗又大又爽A片 亚洲精品一区无码A片 | 欧美色欧美亚洲另类二区 | 果冻传媒和91制片厂a | 国产精品国产三级国产an不卡 | 日韩精品一区二区三区免费视频 | bl肉文推荐失禁 | 欧美成年黄网站色视频 | 亚洲免费黄色网址 | 日韩一二区色情高清清视频 | 亚洲小说电影偷拍在线观看 | 香蕉成人伊视频在线观看 | 免费一级毛片能看的 | 97碰在线看片免费视频 | 黄色激情网址 | 国产成人精品亚洲精品一区色欲 | 亚洲欧美精品无码大片在线观看 | 欧美男生射精高潮视频网站 | 天天射天天色天天干 | 国产情侣真实露脸在线 | 在线看免费无码A片视频 | 亚洲精品久久久一区 | 久久se视频精品视频在线 | 最近更新中文字幕大全免费 | 97在线 | 亚洲 | 毛片新网址 | 漫画老师全彩超级巨大乳 | 特黄做愛又硬又大A片视频 特级 毛片 | 亚洲成人原创 | 国产熟睡乱子伦视频在线观看 | 国产精品久久综合桃花网 | 性一乱一交一A片视频 | 四虎地址8848 | 亚洲国产精品久久精品成人网站 | 精品精品国产欧美在线 | 国产精品永久免费 | 日本肉肉口番工全彩动漫 | 天天操天天干天搞天天射 | 污网站观看 | 色婷婷综合激情中文在线 | 丁香在线| 国产亚洲精品久久久久久国模美 | 四虎官方影库首页 | 午夜视频一区二区三区 | 麻豆影视剧大全 | 亚洲热久久 | 黄色爱爱视频 | 欧美性精品 | 中文字幕在线看 | 一区二区三区波多野结衣 | 四虎影视在线影院在线观看观看 | 三男玩一女三A片 | 日本熟妇乱人伦A片精品软件 | 国产卡一 | 在线免费观看 | 影音先锋资源站av资源 | 亚洲天堂黄 | 澡人人澡人澡人人澡天天 | 麻豆爽爽妓女一区二区三区 | 每日更新在线观看av | 国产h视频在线观看高清 | 日本欧美一区二区三区片 | 五月天婷婷激情 | www.日日爱| 日韩城人网站 | 亚洲国产人久久久成人精品网站 | 国产一区二区精品久久91 | 在线2018免费观看高清视频 | 日韩一区精品 | 国产精品国产成人国产三级 | 韩国伦理电影播放伦理电影网站 | 嗯好爽快点插我视频在线播放 | 亚洲 欧美 天堂 综合 | 日本h视频 | 久久久久久尹人网香蕉 | 国产日韩欧美另类重口在线观看 | 老湿影院色情下 | 在线观看高清影院WWW | 偷窥wc美女毛茸茸视频 | 91av影院| 2022国产毛片大全 | caoporn草棚在线视频 | 丰满岳乱妇一区二区三区 | 成人麻豆日韩在无码视频 | 欧美亚洲熟妇一区二区三区 | 久久天天综合 | 草草影院永久发布地址 | 五月婷婷激情网 | 天天干天天添 | 国产一级免费在线观看 | 丰满熟妇被掹烈进入高清片 | 国产精品久久久久久久久免费 | 香蕉伊人影院在线观看 | 国产三级精品三级在专区 | 人体女人xx | 一级无毛 | 国产精品久久久天天影视香蕉 | 国产精品日韩欧美一区二区三区 | 日本一品道无码免费专区在线观看 | 九热这里只有精品 | 亚洲A片无码一区二区蜜桃久久 | 日本不卡在线一区二区三区视频 | 又色又爽又黄的视频网站免费 | 欧美在线亚洲 | 国产精品一区二区在线观看 | 成人区人妻精品一区二欧美毛片 | 色中色成人导航 | 漂亮人妻被强中文字幕 | 好看的网站你懂的 | 亚洲区色情区激情区小说公 | 亚洲日产韩国一二三四区 | 国精品人妻无码一区二区三区牛牛 | 日本a视频在线观看 | 久久久久久久一线毛片 | 免费又黄又爽A片免费看 | 亚洲色图网 | 国产成人精品影视 | 亚洲操片| 亚洲 欧美 自拍 制服 另类图片 | 军人教官肉H | 日韩国产精品欧美一区二区 | 国产欧美一区二区日本加勒比 | 日韩黄色在线观看 | 无码乱人伦一区二区亚洲一 | 日韩A片无码一区二区五区电影 | 美女内射毛片在线看 | 婷婷电影网 | 国产WW高清大片免费看 | 日韩影片2 | 特级毛片AAAAAA| 国产一卡2卡三卡4卡免费网站 | 交换邻居波多野结衣中文字幕 | 高潮无遮挡成人A片在线看 高辣H文黄暴糙汉文H | 涩涩鲁亚洲精品一区二区 | 亚洲精品卡一卡三卡四卡乱码 | 日本日本熟妇中文在线视频 | 欧美日本道免费一区二区三区 | 中文字幕欧美日韩久久 | 狠狠老司机| 欧美多毛的大隂道 | 日本高清免费视频毛片 | 精品日韩在线视频 | 亚洲国产精品成人综合久久久 | WWW韩国免费视频在线播放 | AV色欲无码人妻中文字幕 | 久久精品国产福利国产秒 | 日韩欧美综合AV久久一区 | 国产欧美日韩灭亚洲精品 | 热久久中文字幕 | 国语熟妇乱人伦A片久久 | 亚洲精品嫩草AV在线观看 | 在线青草 | 综合色就爱涩涩涩综合婷婷 | 日韩美女福利视频 | 真人一级一级特黄高清毛片 | 欧美内射深插日本少妇 | 日韩久久一区二区三区 | 日韩中文视频 | 薰衣草影院 | 精品无码一区二区三区不卡 | 日本无码WWW在线视频观看 | 99热久久精品国产一区二区 | 97在线观免费视频观看 | 毛片网站在线观看 | 国产只有精品 | 日本高清一卡二卡三卡四卡免费 | 久99久热只有精品国产男同 | 欧美人妻WWW无码国产黄漫 | 6080新视觉理论在线观看 | 天天插狠狠干 | 性色欲情网站IWWW九文堂 | 久久99精品久久久久久首页 | 欧美乱妇狂野欧美在线视频 | 日韩在线视频精品 | 精品国产午夜福利在线观看 | 日日麻批免费视频播放高清 | 真大真粗真爽使劲好猛小说网 | 午夜精品A片一区二区三区 午夜激情在线观看 | 日韩一本在线中文字幕 | 高压监狱在线观看完整免费法剧 | 久久精品视频在这里16 | 伦理资源 | 97伦理97伦理2018最新 | 五月激情综合婷婷 | 中文字幕中文字幕在线 | 校园刺激全黄H全肉细节文 校园激情人妻古典武侠 | 日韩精品在线观看视频 | 国产又粗又大又黄 | 天美影视传媒 | 好大好硬使劲脔我爽视频 | 第四色播日韩AV第一页 | 91短视频版在线观看www免费 | 苍井空A级在线观看网站 | 国产四虎精品8848hh | 中文字幕日本不卡一二三区 | 日日噜噜夜夜爽爽 | 超碰97av 在线人人操 | 亚洲精品一区二区午夜无码 | 麻豆传煤官网入口免费进入 | 日本肉肉口番工全彩动漫 | 久久国产精品99国产精 | 午夜视频在线观看区二区 | 国产手机在线自在拍 | 日本精品无码特级毛片 | 成人激情视频在线 | 色干干| 亚色九九九全国免费视频 | 97久久超碰中文字幕 | 日韩在线视屏 | 永久品色堂| 精品国产不卡一区二区三区 | 影音先锋中文5566资源 | 亚洲精品黄| 久久女人被添全过程A片 | 男女啪啪永久免费观看网站 | 在线看片v免费观看视频777 | 妻子的背叛免费看 | 柳文文被肉干高H潮文不断 擼一擼AV网站 | 中文字幕亚洲欧美一区 | 亚洲精品无码成人A片在线小说 | 色情成人影院欧美激情 | 97国产精品人妻无码久久久 | 欧美精品亚洲精品日韩专区 | 天天看片天天干 | 忘忧草在线影院日本图片 | 日韩欧美高清一区 | 国产第一页浮力影院草草 | 精品久久成人免费第三区 | 色视频网站2 | 国产成人亚洲综合a∨婷婷 国产成人亚洲综合91精品555 | 少妇又紧又爽又丰满A片小说 | 日韩大片在线永久免费观看网站 | 色婷婷狠狠 | 葫芦娃.combo3.0深夜释放自己 | 欧美日韩精品一区二区三区高清视频 | 色戒汤唯梁朝伟七分频视频 | 一区二区三区A片无码视频不卡 | 韩国乱理片中文字幕在线播放 | 国产精品乱码久久久久久软件 | 菠萝蜜麻豆一区 | 久操手机在线视频 | 亚洲欧美日韩国产手机在线 | 欧美精品无码一区二区三区老鸭窝 | 51社区精品视频 | 91精品欧美综合在线观看 | 少妇厨房愉情理9伦片视频 少妇大叫太大太粗太爽了A片 | 中文字幕在线最新在线不卡 | 一个人的高清视频www | 色婷婷在线播放 | 日日夜人人澡人人澡人人看免 | 亚洲AV成人精品网站在线播放 | 野花社区wwW高清视频 | 亚洲高清中文字幕免费 | 亚洲乱码伦小说区 | 激情综合婷婷 | 精品国精品国产自在久国产不卡 | 日韩精品AV一二三区在线 | 麻豆TV入口在线看 | 久久99精品久久久66 | 国产精品久久久久免费视频 | 玖玖色在线 | 狼人综合网| 偷拍亚洲另类无码专区 | A片A三女人久久7777 | 欧美videos人牛交 | 黑人大棒日俄罗斯美女 | 久久99这里只有精品国产 | 把她日出水来太爽太紧了 | 人人欧美 | A片免费观看一区二区三区 A片粗大的内捧猛烈进出在线 | 91精品三级在线观看播放 | 日本里番大全无码工口 | 少妇饥渴偷公乱AV在线观看涩爱 | 97视频精品全国在线观看 | 菊色宫快播电影 | 撕开胸罩胸奶头玩大胸动态图片 | 免费羞羞午夜爽爽爽视频 | 最近免费2019中文字幕大全 | 西西人体做爰大胆视频韩国 | 西西人体大尺度nte 西西人体大胆牲交PP6777 | 在线播放一区二区精品产 | 狠狠躁日日躁夜夜躁A片小说天美 | 在线视频 国产精品 中文字幕 | 欧美在线天堂 | 最近最新中文字幕MV免费 | 天天干天天色综合网 | 国产麻豆AV一区二区三区 | 国产网曝门亚洲综合在线 | 艳妇臀荡乳欲伦1 | 色婷婷六月亚洲婷婷丁香 | 日韩首页| 亚州久久久久区1区2少妇 | 992tv国产精品福利在线 | 欧美精品videosex极品 | 99精品视频在线观看 | 国产精品第100页 | 激情视频综合网 | 国产理论视频 | 永久免费看www色视频 | 成人在线视频观看 | 精品夜夜澡人妻无码AV | 欧美jizzhd精品欧美高清 | 波多野结衣在线中文 | 欧美videos另类极品 | 免费精品国偷自产在线在线 | 午夜免费视频 | 日本不卡视频在线观看 | 亚在线观看免费视频入口 | 欧美日韩有码 | 91成人免费观看网站 | 大尺度哺乳福利视频 | 天堂在线亚洲 | 狠狠精品干练久久久无码中文字幕 | 久久这里只有精品无码3D | 99久久99久久久99精品齐 | 91网站在线播放 | 国产网站91 | 黑人大战白人欧美系列 | 8x免费视频 | 精品人妻无码一区二区三区在线 | WWW亚洲色大成网络.COM | 2021手机日本卡一卡二新区 | 性欧美极品另类 | 色妞网站 | 国偷自产一区二区免费视频 | www.日韩视频 | 欧美乱妇高清正版在线观看 | 一本色道久久88一综合 | 免费黄色三级网站 | 男女无遮挡猛进猛出免费观看视频 | 在线播放精品 | 欧美性高清极品猛交 | 欧美日韩精品一区二区三区高清视频 | 客客色成人网 | 精品国产三级 | 自拍 亚洲 偷拍 青涩 | 国产美女被爽到高潮激情免费A片 | 女的毛片毛片毛毛片毛毛毛毛片 | 91精品国产高清久久久久久 | 免费啪视频观免费视频 | 精品人妻无码一区二区三区下载 | 强壮公弄得我次次高潮A片强视频 | 97青草最新免费精品视频 | 免费国产一级特黄aa大片在线 | 国产精品久久永久免费 | 日本成人免费网站 | 日本高清一区二区三区无码 | 国产精品免费小视频 | 麻豆精选2021 | 乱肉杂交怀孕系列小说BL | 边啃奶头边躁狠狠躁AV | 中文字幕视频免费在线观看 | 久久99国产精品二区不卡 | 点击进入好看的电影网站 | 中国黄色www| 91免费视频播放 | 97sese图片| 国产免费一级视频 | 夜夜天天 | 国产亚洲精品福利 | 手机在线毛片免费播放 | 国产亚洲自拍一区 | 99在线播放视频 | 日本v片免费一区二区三区 日本v片 | 国产午夜精品久久久久 | A片粗大的内捧猛烈进出AV | 日韩一区二区三区中文字幕 | 日本免费一区二区视频 | 最近中文字幕MV国语免费下载 | 欧美日本韩国亚洲 | 亚洲欧美丝袜制服 | 久久久久久毛片免费观看 | 日本一区二区三区免费高清在线 | 国产涩涩视频在线观看 | 受喷汁红肿抽搐磨NP双性 | 亚洲午夜免费 | 亚洲精品123区在线观看 | 久久精品少妇高潮A片免费观 | 少妇无码吹潮久久精品AV网站 | 拔擦拔擦8X永久华人免费播放器 | 18禁无遮挡爽爽爽无码视频 | 亚洲国产五月综合网 | 欧美午夜在线视频 | 丝瓜污视频 | 老司机综合网 | 综合色就爱涩涩涩综合婷婷 | 日本真人做爰高潮全过程 | 国产重口老熟妇 | 中文字幕精品一区二区三区在线 | 国产ts| 隔着内裤进去了H | 色欲AV久久一区二区三区 | 纯肉无码AV在线看免费看 | 少妇毛又多又黑A片欧美 | 四虎影视8848a四虎在线播放 | 免费黄色成人 | 国产色精品久久人妻无码看 | 九九九九热 | 丰满岳乱妇一区二区三区 | 免费播放大片免费观看视频 | 花房姑娘免费观看8集电视剧高清 | 欧美成人精品区综合A片 | 全身无赤裸裸美女 | 免费网站在线观看人数在哪网站 | 国产69精品久久久久观看软件 | 眉间雪电视剧全集在线观看 | 午夜黄视频 | 五月婷婷 六月丁香 | 日本免费一本天堂在线 | 日韩三级伦理 | 欧美黄无码无遮挡大开眼戒 | 久久免费大片 | 美女脱裤衩扒开尿口给男子摸 | 色综合天天综合网站中国 | 久久久国产精品无码人妻 | 亚洲欧洲中文日韩久久AV乱码 | 日韩一区二区A片免费观看 日韩一级视频 | 欧美性爱天天影视 | 抖抈APP| 中文字幕一区二区三 | 李玲大尺度 | 亚洲深夜福利视频 | 国产99精品视频 | 日日夜夜综合 | 亚洲一区二区在线视频 | 涩涩动漫网站入口 | 一级毛片美国一级j毛片不卡 | 国产午夜精品一区二区不卡 | 欧美剧场成人精品午夜 | 亚洲 图片 另类 综合 小说 | 中文字幕精品AV一区二区五区 | 性色无码AV久久蜜臀 | 欧美日韩一区二区综合在线视频 | 色情内射少妇兽交 | 韩国乱码片免费看 | 久久久免费看少妇高潮A片特黄 | 福利视频网址 | 中文字幕乱码熟女人妻水蜜桃 | 久久精品国产亚洲AV影院 | 又大又硬又爽18禁免费看 | 少妇高清性色生活片成人A片 | 校园H所有人随时随地做 | 囯产丰满肉体A片 | 国产日韩精品欧美一区喷水 | 中文字幕国产精品 | 亚洲国产在线资源网 | 狠狠色婷婷日日综合五月 | 91亚洲国产成人久久精品网址 | 国产成人福利在线视老湿机 | 日本护士视频xxxxxwww | 四虎永久免费地址入口 | 水蜜桃成视频人在线播放 | 99蜜桃在线观看免费视频网站 | 十八种看黄禁用软件APP入口 | 中文有码人妻字幕在线 | 激情文学综合丁香 | 无码国产精品一区二区色情男同 | 天美影视传媒高清免费完整版 | 最新国产精品自拍 | 午夜亚洲乱码伦小说区69堂 | 久久精品免费 | 一级做a爱片在线播放 | 日韩在线高清视频 | 国产亚洲福利在线视频 | 日韩在线视屏 | 日本中文字幕网站 | 亚洲色拍偷拍精品一区二区麻豆 | 大香伊人中文字幕精品 | 欧美阿v高清资源不卡在线播放 | 成人做爰69片免费看网站 | 国产女人18毛片水真多1 | 色婷婷综合缴情综六月 | 六月成人 | 永久国产 | 亚洲人成网站999久久久综合 | 国产成人亚洲欧美激情 | 看看色播| 医生别摸啊摁摁 | 殴美影院 | 日韩伦理三级 | 国产精品久久久久久99人妻精品 | 99精品久久毛片A片 99精品免费久久久久久久久日本 | 99九九热| 活大器粗NP高H一女多夫 | 青草电影院 | 麻豆文化传媒官方网站入口免费 | 91新视频| 好爽好紧好大的免费视频国产 | 精品国精品国产自在久国产应用 | 狠狠精品干练久久久无码中文字幕 | 伊人大查蕉亚洲 | 九九久久国产精品免费热6 九九久久国产精品大片 | 亚洲精品拍拍央视网出文 | 97精品国产91久久久久久 | 亚洲女人影院想要爱 | 狼狼色丁香久久女婷婷综合 | 国产三级级在线电影 | 国产亚洲精品久久久久久鸭绿欲 | 国产在线观看免费一级 | 荡公乱妇翠翠 | 亚洲欧美中文v日韩v在线 | 亚洲区激情区图片小说区 | 99精品久久秒播无毒不卡 | 阿娇艳Z门照片无码AV4I | 成人免费aaaaa毛片 | 开心色播在线电影 | 偷亚洲偷国产欧美高清 | 插插插色欲综合网 | 又大又爽又硬的曰皮视频 | 国产综合无码一区二区色蜜蜜 | 国内偷拍2019在线偷拍视频 | 久久AV亚洲精品一区无码 | 黄色免费网站在线看 | 亚洲高清在线观看视频 | 国产麻豆乱子伦午夜视频观看 | 国产精品综合色区小说 | 色情狠久久AV五月综合五月 | 人妻体内射精一区二区三四 | 日韩成人免费视频 | 午夜电影播放器 | 2024最新国产不卡a国内2024 | 偷看洗澡好多毛 | 秋霞在线观看视频一区二区三区 | 国产色精品久久人妻无码看片软件 | 伊人亚洲影院 | 日韩卡1卡2 卡三卡2021老狼 | 最新黄色在线 | 亚洲一区在线观看无码欧美 | 国偷自产一区二区免费视频 | 热re99久久精品国99热 | 性一交一乱一美A片69XX | 99久久精品一区二区三区 | 久久国产精品免费 | 最新精品视频2019在线视频 | 亚洲毛片一级带毛片基地 | 欧美第一视频 | 国产一卡2卡3卡4卡有限公司 | 超碰caoporen国产 | 中文字幕在线观看 | 国产熟妇搡BBBB搡BB七区 | 忘忧草日本在线社区WWW电影 | 99热导航 | 国语自产拍在线观看偷拍在 | 成人在无码AV在线观看一 | 国产成人免费高清在线观看 | 韩国羞羞秘密教学子开车漫书 | 99热影视| 日本 韩国 三级 国产 欧美 | 国产特黄特级AAAAA片 | 无码人妻丰满熟妇啪啪网不卡 | 狠狠色噜噜狠狠狠888奇米 | 色欲一区二区三区精品A片 色欲综合视频天天天 | 亚洲A片无码一区二区三区公司 | 特级做A爰片久久毛片A片喷水 | 亚洲精品午夜一区人人爽 | 佐伯ゆきな | 成人午夜亚洲影视在线观看 | 国产亚洲精品久久久久久无99 | 少妇性L交大片免 | 蜜色欲多人AV久久无码 | 婷婷丁香九月 | 久久久久久电影 | 午夜影院06o6tv | 毛片在线网址 | 伊人影院蕉久影院2 | 欧美一级欧美一级在线播放 | 奇米在线777在线视频 | 久精品视频 | 免费日韩精品 | 天天拍夜夜操 | 性色在线视频 | 无人视频在线观看播放免费 | 日韩三级 | 国产人妻精品一区二区三区不卡 | 日本高清另类videohd | 亚洲性免费 | 优雅美妇疯狂迎合娇吟 | 国产单亲乱子伦视频 | 综合亚洲桃色第一影院 | 久久久久久一品道精品免费看 | 亚洲午夜免费 | 最好看最新中文视频在线观看 | 老王午夜69精品影院 | 国产资源视频在线观看 | 欧美又粗又硬又大久久久 | 欧美孕妇xxxxhd高清 | cao美女视频在线观看 | 19国产精品麻豆免费观看 | 免费最新看电影的网站 | 1024国产欧美日韩精品 | 黄色毛片视频免费 | 成人无码区免费A片视频韩国 | 久久久九九精品国产毛片A片 | 国产日产综合 | 奇米狠狠一区二区三区 | 国产男女猛烈无遮挡A片游戏 | 老师好大乳好紧好深 | 高清欧美性xxxx成熟 | 加勒比AV一本大道香蕉大在线 | 国内自拍第五一页 | 级毛片久久久毛片精品毛片 | 国产黄色一级毛片 | 国产真实乱人偷精品人妻图片 | 久久国产亚洲精品麻豆 | 九九久久精品国产免费看小说 | 顶级少妇做爰视频在线观 | 成人高清视频在线观看 | 88av在线视频| 最近最新中文字幕MV在线1 | 青青青国产在线观看手机免费 | 网红思瑞一区二区三区 | 秋霞电院影伦理 | 卯月麻衣作品 | 亚洲色四在线视频观看 | 人人操在线播放 | 国产乱妇无码大黄AA片 | 久久精品99 | 免费在线观看黄网站 | 久久视热在线视频精品 | 人人爱夜夜爽日日做视频 | 欧美精品1 | 国产极品JK白丝玉足喷白浆 | 乱肉怀孕系列小说 | 国产在线永久视频 | 精品无码国产一区二区日本 | 亚洲 欧美 视频 手机在线 | 成人无码精品1区2区3区免费看 | 娇妻被交换粗又大又硬视频 | 最新中文字幕日本 | 久久99精品久久久久久综合 | 亚洲伊人色综合网站 | 国产无遮挡A片又黄又爽 | 一个人看的视频在线观看高清 | 国产91网 | 六月婷婷综合 | 蜜桃97ai| 在线观看网站黄 | 一区二区三区无码高清视频 | 女同桌张开腿让我爽了一夜 | 久久国产偷 | 久久se视频精品视频在线 | 亚洲制服丝中文字幕 | 最近最新免费中文字幕MV | 夜色99视频多人聊天室 | 免费又色又爽又黄的视频 | 成人亚洲色欲色一欲WWW | 亚洲免费福利在线视频 | 无人在线观看视频高清视频 | 天美传媒AV成人片免费看 | 国产黄A片免费网站免费 | 男女午夜精华液 | 天天干夜夜玩 | 99久久精品国产一区二区小说 | 精品成人 | 中文字幕在线视频网 | 丁香wyt | 欧美hdjzz| 国产成人精品日本亚洲网址 |