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

bhfqe

10 Oct 2025(atualizado 10/10/2025 às 21h08)

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

Temas

Compartilhe

Produ??o e uso de energias renováveis avan?am por meio de parcerias e investimentos Transformando o amanh?. Juntos. Valor Econ?mico.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 musicas relacionadas a pokerits 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

York_City_4-0_Tamworth_-_BBC_Sport.txt

Produ??o de embalagens cresce no 1o semestre, mas proje??o para 2025 é revisada para baixo Empresas Valor Econ?mico.txt conhecimento e os entretenimento explorar.

GRáFICOS

nos eixos

Your_pictures_of_Scotland_Photographs_from_around_the_country.txt

Precisamos de dirigentes estadistas que iluminam Carreira Valor Econ?mico.txt lazer e os ponto quente moda.

Navegue por temas

Produtor antecipa boa safra, mas com margens apertadas Agronegócio Valor Econ?mico.txt Pre?o médio da gasolina chega a R$ 5,88 e registra alta em todas as regi?es do Brasil em mar?o.txt Premier_League_Football_-_Latest_news_results_stats_amp_transfers_-_BBC_Sport.txt Preserva??o depende de inclus?o social e produtiva Florestas Valor Econ?mico.txt Premier_League_Table_and_Standings_-_Football_-_BBC_Sport.txt Proibi??o de testes em animais deve impulsionar investimentos Empresas Valor Econ?mico.txt Primeiro-ministro da Grécia anuncia incentivos fiscais em meio à crise do custo de vida Mundo Valor Econ?mico.txt Primavera traz dividendos de Petrobras (PETR4), Vale (VALE3) e mais; confira a agenda de setembro Empresas Valor Investe.txt Programas preservam espécies amea?adas Biodiversidade Valor Econ?mico.txt Promo??o relampago F12bet: até 100 Giros Grátis no Tigre Sortudo.txt
亚洲A片无码精品毛片 | 国产亚洲精品久久综合阿香 | 邓丽欣6分钟种子 | 国产成人18黄网站免费 | 五月色电影| 欧美激情视频一区二区免费 | 午夜影院06o6tv | 女医学护士一级毛片 | 色噜噜狠狠色综合欧洲selulu | 国产黄在线观看免费观看 | 异族tube欧美疯狂xxx | 性欧美黑人 | 亚洲综合色婷婷六月丁香 | 午夜性做爰A片免费看 | jizzjizzjizz丝袜老师 | 亚洲日本韩国在线 | 少妇被躁爽到高潮无码久久 | 久久精品国产精品亚洲蜜月 | 守寡的岳引诱我岳潮湿的肥厚 | 日本 影院| 日本高清免费不卡在线 | 蜜桃网怎么打不开了 | 亚洲一区二区女搞男 | 公交车上荫蒂添的好舒服的电影 | 国产亚洲精品久久久久婷婷图片 | 欧美亚洲国产精品久久 | 亚洲欧洲日本国产专区一区 | 日韩欧美群交P片內射中文 日韩欧美中 | 国产乱码免费卡1卡二卡3卡 | 男女做羞羞的事视频免费观看无遮挡 | 精品一区二区三区高清免费观看 | 永久域名18勿进永久域名3XCC | 在线看片亚洲 | 天天干天天弄 | 色资源二区在线视频 | 射精区-区区三区 | 天天操天天干天天爱 | 四虎影视四虎在钱免费 | 欧美wwwwxxxx| 真人性做爰88式免费视频 | 丝袜性爱视频 | 99RE久久爱五月天婷婷 | 九九亚洲视频 | 最近更新中文字幕完整版视频 | 长篇肉戏香艳完本小说排行榜 | 久久国产精品久久久久久 | 午夜视频网站在线观看 | 做爰高潮A片在线播放 | 亚洲欧美日韩精品久久 | 日韩欧美综合AV久久一区 | 成年人黄色片网站 | 色吧电影网| 三级毛片三级毛片 | 亚洲日本香蕉视频观看视频 | 欧美性xxxx极品hd欧美 | 自拍欧美日韩亚洲动漫 | 欧美日韩亚洲区久久综合 | 国产精品亚洲二线在线播放 | 国产福利2021最新在线观看 | 免费毛片视频网站 | 91制片厂果冻传媒余丽 | 日韩高清在线中文字带字幕 | 又硬又粗进去好爽A片免费多人玩 | 国模左儿 | 日韩视频在线一区 | 米奇影院888奇米色99在线 | 开心色播在线电影 | 熟女人妻久久中文字幕一二区 | 久久精品一区二区 | 性瘾日记百度影音 | 成人福利在线观看免费视频 | 内射爽无广熟女亚洲 | 精品三级内地国产在线观看 | 精品福利资源在线导航网址 | 99je全部都是精品视频在线 | 四房播播 快播 | 精品一卡二卡三卡四卡视频区 | 麻豆免费看 | 玩高中女同桌肉色短丝袜脚文 | 国产精品国产三级国产普通 | 日日夜夜狠狠 | 国产精品久久久久人妻无码网址 | 国产成人精品一区 | 精品久久久久久久一区二区伦理 | 免费成人在线电影 | 麻豆一区区三区四区产品麻豆 | 国产欧美日韩中文视频在线 | 欧美黑人性受xxxx精品 | 99精品中文字幕 | 精品国产一区二区三区四区在线看 | 无码日本亚洲一区久久精品 | 麻豆视频免费观看 | 欧美特黄一级高清免费的香蕉 | 天天躁日日躁狼狼超碰97 | 免费99精品国产人妻自在线 | 欧美黄色一级网站 | 波多野结衣中文字幕在线视频 | 大陆精品自在线拍国语 | 黄色成人免费网站 | 免费成人电影在线 | 五月情天 | 好涨好爽好大视频免费 | 日本黄色一级网站 | 92看看福利1000集合集免费 | 亚洲欧洲日本无在线码播放 | 波多野结衣一区在线 | 色爽黄1000部免费软件下载 | 校园春色综合网 | 日日踫夜夜爽无码久久 | 人与兽黄色毛片 | 国产欧美日本 | 亚洲国产成人久久一区久久 | YASEE亚瑟中文网在线 | 国产成人亚洲精品91专区手机 | 亚洲欧美激情精品一区二区 | 日韩在线观看视频免费 | 免费妞干网 | 天天天 | 午夜免费国产体验区免费的 | 91精品一区二区三区久久久久 | 国产99久久九九免费精品无码 | 夜夜看电影网 | 男人边吃奶边做愛视频 | 一区二区三区四区国产 | 国产crm系统91| 99久热这里精品免费 | 天天操天天干天天拍 | 99久久国产露脸国语对白 | 亚洲国产精品日本无码小说 | 性欧美高清短视频免费 | 日韩国产无矿砖一线二线图 | 狠狠色很很鲁在线视频 | 国产乱码卡一卡2卡三卡四 国产乱码一卡二卡3卡4卡网站 | 性做久久久久久久久浪潮 | 国产激情视频 | 日韩精品一区二区在线观看 | 日日猛噜噜狠狠扒开双腿小说 | 阳茎伸入女人阳道视频 | 97免费视频观看 | 色偷偷资源网 | 攻强行往受屁股里放大东西 | 98色精品视频在线 | 亚洲色图13p | 中文字幕5566看片资源 | 黄色网免费观看 | 毛片小说| 亚洲高清最新av网站 | 国产成在线观看免费视频 | 欧美人与动牲交免费看 | 欧美黑人xxx| 无码国产一区二区三区四区 | 無码一区中文字幕少妇熟女网站 | 国产五月色婷婷六月丁香视频 | 无码AV亚洲一区二区毛片 | 97国产在线视频 | 国产精品久久久久久久久久久久久久 | 中文字幕乱偷无码AV蜜桃 | 最近日本韩国高清免费大全 | 毛片a区| 亚洲精品久久无码AV片麻豆 | 囯产愉拍亚洲精品一区 | 另类免费视频 | 色柚视频网站ww色 | 在线观看黄网站 | www.五月婷婷 | 无码激情做A爰片毛片A片蜜桃 | 日韩欧美成人免费中文字幕 | 亚洲久悠悠色悠在线播放 | 2024四虎www网址2 | 最近中文字幕免费完整版2019 | 国产精品一区二区人妻无码 | 午夜精品一区二区三区免费视频 | 少妇高潮毛片免费看A片 | 粉嫩大学生无套内射无码卡视频 | 最新韩国r剧2019在线观看 | 美味三姐妹在线观看 | 激情婷婷网 | 色婷婷色综合 | 成年网站在线播放 | 免费看的一级毛片 | 69精品视频| 幻女FREE性ZOZO交喷水 | 久久亚洲国产高清 | 亚洲一二区视频 | 日本三级韩国三级三级a级按摩 | 四色777| ACG全彩绅士口工侵犯漫画 | 无码国产伦一区二区三区视频 | 日本在线不卡免费视频 | avi电影| 久久激情免费视频 | 亚洲 欧美 日本 国产 高清 | 国产春色| 日本一卡二卡三卡四卡免费观 | 欧美性啪啪 | 日韩无| 拔擦拔擦8X永久华人免费播放器 | 91制片厂果冻传媒首页 | 天堂国产在线观看 | 久久精品久久精品国产大片 | 55大东北熟女啪啪嗷嗷叫 | 欧美孕妇乱大交xxxxx | 97色伦图片97色伦图影院久久 | 艳妇乳肉豪妇荡乳a亚洲 | 欧美高清一级 | 亚洲国产激情一区二区三区 | 天天噜夜夜操 | 中文字幕不卡在线播放 | 九九精品在线视频 | 亚洲国产精品无码成人A片小说 | 强姧美女动态图片大全 | jizz曰本 | WWW国产精品内射老师 | 国产传媒在线观看视频免费观看 | 亚洲一级毛片免观看 | 综合伊人| 国产情侣激情 | 国产精品人人爽人人做我的可爱 | 久久免费视频6 | 无遮挡高清一级毛片免费 | 国产91色在线 | 亚洲 | 日韩精品无码A片一二三区 日韩精品无码二三区A片 | 草草CCYY免费看片线路 | 美国三级毛片 | 伊人久久精品亚洲午夜 | 青草视频免费观看在线观看 | 99九九精品国产高清自在线 | 夜夜躁狠狠躁日日躁2024 | 亚洲18岁禁止 | 99在线精品国自产拍 | 成年人黄视频在线观看 | 欧美性猛交aa一级 | A片太大太长太深好爽A片视频 | 欧美猛交XXX无码黑寡妇 | 97密挑| 青青草大香焦在线综合视频 | 精品国产片一区二区三区 | 毛片在线看片 | 欧美一区二区三区成人看不卡 | 免费国产小视频 | 久久免费看少妇高潮A片特黄多 | 在线观看免费国产成人软件 | 亚洲精品www | 亚洲一区二区三区麻豆 | 国产精品黄在线观看免费软件 | 上课时男同桌狂揉我下面污文 | 99热在线免费播放 | 久久久久久久蜜桃 | 黑人强伦姧人妻日韩那庞大的 | WWW国产亚洲精品久久小说 | 精品综合久久久久久99 | 综合一和综合二 | 欧美伦理片 | 色成人在线 | 成人乱码一区二区三区四区 | 自拍日韩亚洲一区在线 | 亚洲你我色 | 天天综合亚洲国产色 | 精品无码欧美黑人又粗又 | 亚婷婷洲AV久久蜜臀无码 | 国产成人福利 | 亚洲欧洲日产国无高清码图片 | 国精产品999一区二区三区有限 | 精品国精品国产自在久国产应用 | 久久无码AV亚洲精品色午夜 | 中文字幕无线手机在线 | 国产SUV精品一区二区883 | 日日夜夜天天干干 | 人人搞人人 | 国内偷拍2019在线偷拍视频 | 久久综合久久鬼色 | 国产成久久免费精品AV片天堂 | 好硬啊进得太深了A片无码视频 | 一区二区亚洲精品国产精华液 | 色中色最新域名 | 一区二区传媒有限公司 | 边做边爱免费完整版视频播放 | 爱草网| 黄色激情视频网址 | 日韩精品AV一二三区在线 | 秋霞伦理片 | 久久久无码精品亚洲欧美 | 公和我做爽死我了A片AAB | 中国乱码一二三区别免费 | 四虎影视最新2024在线观看 | 天天综合网色中文字幕 | 国产亚洲精品久久7777777 | 国产人妻出轨26P | 欧美性另类 | 亚洲色婷婷久久精品AV蜜桃 | 精品一区 二区三区免费毛片 | 久久WWW免费人成一看片 | 最近更新中文字幕大全免费 | 经典国产乱子伦精品视频 | 最近中文国语字幕在线播放 | 国产亚洲精品久久久久婷婷图片 | 外国成人网址 | 亚洲AV在线一区二区三区 | 六月婷婷国产精品综合 | 久久久久久久一精品 | 伊人久久国产免费观看视频 | 99久久精品免费看国产 | 日本熟妇乱人免费视频 | 97色伦图片在线观看 | 国产男女猛烈无遮挡A片软件 | 国产在线综合视频 | 欧美精品亚洲精品日韩专区 | 国产精品福利短视在线播放频 | 97视频免费在线观看 | 在线播放国产精品 | 人人干人人澡 | 亚洲精品一区二区三区四区久久 | 8x华人永久 | 乱录目伦短篇小说 | 国产黄的网站免费 | 粗大的内捧猛烈进出A片小说 | 波多野结衣教师中文字幕 | 国产精品免费久久久久影院 | 亚洲精品AV中文字幕在线 | 成年美女xx网站高清视频 | 强奷乱码欧妇女中文字幕熟女 | 日本污视频在线观看 | 国产男女猛烈无遮挡A片游戏 | 学生妹被爆插到高潮无遮挡 | 草久视频在线观看 | 色噜噜狠狠色综合欧洲 | 欧美中文字幕在线视频 | 天堂在线最新资源 | 亚欧三级 | 狠狠色噜噜狠狠狠狠色综合网 | 国产成人综合精品一区 | 久久国产露脸老熟女 | 色综久久 | 古装a片| 国产丰满人妻一区二区电影 | 国产在线免 | 亚洲avi| 亚洲一区二区三区夜色 | 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 日本欧美午夜 | 免费黄色三级 | 天堂在线资源最新版 | 精品无人妻一区二区三区 | 性一交| 91精品国产欧美一区二区 | 精品国产乱码久久久久久浪潮小说 | 精品国产一区二区三区四区在线看 | 麻豆91av | 久久久久九九精品影院 | 日本少妇浓毛BBWBBW | 91免费国产在线观看 | 日本在线高清视频 | 被群CAO的合不拢腿H小说 | 国产视频网| 含紧一点H边做边走动免费视频 | 国产自产自拍 | 伊人久久大香线蕉免费视频 | 97青草最新免费精品视频 | 日本三级免费 | 日韩大片免费看 | 69福利视频 | 成人高清视频在线观看 | 欧美在线观看第一页 | 2019中文字幕乱码免费 | 偷拍自偷 亚洲 欧美20P | 免费看成人频视在线视频 | 成人网站免费大全日韩国产 | 色婷婷精品大全在线视频 | 中文字幕乱码 电影在线观看 | 俺去也anquye.com | 亚洲高清无码在线 视频 | 欧美香蕉人人人人人人爱 | 欧美激情视频一区二区免费 | 天天草天天 | 国语熟妇乱人乱A片久久 | 伊人久久综在合线亚洲91 | 国产三級三級三級A片视频 国产三级在线观看免费 | 免费永久观看美女视频网站网址 | 91精品国产91热久久p | 在线精品视频免费观看 | 嗯啊抵在墙上H失禁受男男 嗯啊灬别停啊灬用力灬快 嗯啊快拔出来我是你老师 嗯啊在线观看 | 男人把我添到了高潮A片 | 国产人妻久久精品一区 | 成人国产三级在线播放 | 原来新神马电影手机版 | 亚洲AV久久无码精品夜夜挺 | 欧美性生交XXXXX无码小说 | 日本高清在线视频手机 | 天天干一干 | 亚洲AV久久无码精品热九九 | 在线免费视频 | 乱理片 最新乱理片2024 | 欧美同性精品xxxx | 大胸年轻继坶2韩伦影院 | 韩国伦理电影播放伦理电影网站 | 在线黄网观看 | 免费理论片高清在线观看 | 乱码视频午夜在线观看 | 欧美zzzo00另类高清 | linode日本iphone强汉视频 | 波多野结衣视频一区二区 | 国产资源视频 | 成人深夜 | 牛和人交videos欧美冫3d | 黄视频在线观看www 黄视频网站在线看 | 小泽玛利亚 种子 | 噜噜噜噜私人影院av线观看 | 99精品影视 | 在线黄视频网站 | 乌龙院1国语免费完整版 | 国产清纯91天堂在线观看 | 国产精品国产三级国产AV剧情 | 特黄A又粗又大又黄又爽A片软件 | 精东视频影视传媒制作精品免费版 | 亚洲欧美国产日本 | 一个人看的视频在线观看高清 | 亚洲一二区视频 | 天天综合网久久 | 彩色h中文漫画 | 国产农村熟妇出轨VIDEOS | 2020年日本高清一卡二卡三卡四卡 | 成年午夜免费影院 | 成人三级做爰视频在线看 | 久久草资源费视频在线观看 | 黄页视频在线观看免费 | 2020天天干| 中文字幕无码无卡视频 | 天天操夜夜操夜夜操 | 亚洲色图欧美激情 | 色翁荡熄又大又硬又粗又视频软件 | 国产在线观看免费观看不卡 | 亚洲热久久 | 死尸videosdeexotv| 国产精品成人四虎免费视频 | 国产精品国产三级国AV在线观看 | 国产精品久久久久久久久免费 | 国产精品国产高清国产专区 | 黄色成年视频 | 日韩欧美综合在线二区三区 | 少妇高清精品毛片在线视频 | 夹震蛋玩到失禁PLAY调教 | 人人精品久久 | 中文字幕亚洲欧美一区 | 日本视频免费观看的网站 | a一级毛片视频免费看 | 激情综合五月天丁香婷婷 | 欧美日韓性视頻在線 | 2019偷偷狠狠的日日 | 亚洲二区在线 | 久草最新网址 | 免费无码又色又爽的视频软件 | 亚洲AV成人无码一二三在线观看 | 欧美日韩精品一区二区免费看 | 国产 亚洲 中文字幕 在线 | 天天色综合图片 | 国产日产亚洲系列最新 | 免费国产成人午夜在线观看 | 四虎影视在线影院在线观看观看 | 欧美色99| 99re8在线精品免费观看 | 影音先锋影院中文无码 | 久久久这里只有精品免费 | 欧美操女人 | 欧美乱码卡一卡二卡四卡免费 | 老司机免费午夜精品视频 | 久久这里只有热精品18 | 琪琪电影午夜理论片77网 | 囯产A片又粗又爽免费视频 囯产丰满肉体A片 | 国产三区视频 | 国内自拍视频在线观看 | 真实露脸国产熟妇熟年妇人视频 | 高清无码中文字幕影片 | 亚洲午夜精品A片久久WWW慈禧 | 69国产成人网站 | 国产麻豆VIDEOXXXX实拍 | 亚洲 欧美 字幕 一区 在线 | 日本高清免费在线视频 | 大战丰满老熟妇重囗味视频 | 国产精品久久久久无码人妻网站 | 欧美日韩在线看 | 宅男噜噜噜66 | 国产午夜精品片一区二区三区 | 亚洲天天一色综合AV | 激情视频app | 亲亲动漫网 | 国产老熟女伦老熟妇视频 | 四虎影视永久免费观看 | AV剧情麻豆映画国产在线观看 | 香蕉网站狼人久久五月亭亭 | 在线2018免费观看高清视频 | 中文字幕一级 | A级成人毛片免费视频高清 a天堂v | 精品国产人妻一区二区三区免费 | 香蕉人妻AV久久久久天天 | 久青草国产手机在线视频 | 色秀影院 | 国产天天射 | 囯精品人妻无码一区二区三区99 | 欧美成人高清在线视频大全 | 国产护士一区二区三区 | 能在线观看的一区二区三区 | 午夜视频网 | 麻豆国产成人AV在线 | 久久精品少妇高潮A片免费观 | 青青草A在在观免费线观看 青青草成人费观看 | 国产国产精品人在线观看 | 九九精品国产亚洲A片无码 九九操视频 | 人人干人人澡 | 国产黄色片免费看 | 少妇饥渴无码高潮A片爽爽小说 | a国产视频| 国产乱码卡一卡2卡三卡四 国产乱码一卡二卡3卡4卡网站 | 免费观看成人久久网免费观看 | 韩国日本三级三级人 | 亚洲国产剧情中文视频在线 | 成人一区视频 | 日本一区二区在免费 | 国产精品国产香蕉在线观看网 | 国产真实乱人偷精品人妻69 | 欧洲色情三级欧美三级视频 | 欧美孕交videofree巨大 | 色偷偷亚洲女人天堂观看欧 | 欧美一级va在线视频免费播放 | 都市人妻古典武侠另类校园 | 国产欧美二区综合 | 涩涩视频下载 | 欧美成年免费a级 | 免费无码又爽又刺激A片小说 | 日本妈妈黄色片 | 欧美另类高清 | 免费无码又爽又刺激A片软软件 | 久在线观看福利视频 | 日本丝瓜着色视频 | 日韩精品在线播放 | 国产一区二区三区成人久久片 | 欧美日韩国产一区三区 | 久久福利院 | 草草视频在线观看最新 | 丁香激情小说 | 亚洲国产香蕉视频欧美 | 国产精品成人四虎免费视频 | 制服丝袜 快播 | 欲妇荡岳丰满少妇A片 | 校园黄乱色伦短篇小说 | 亚洲精品无码一区二区卧室 | 国产又色又爽又黄的视频免费看 | 91精品国产欧美一区二区 | 日韩精品免费一区二区三区 | 国产精品福利影院 | 宅男午夜大片又黄又爽大片 | 在线看国产| 久久天堂成人影院 | 国产日韩精品一区在线观看播放 | 先锋五月婷婷丁香草草 | 自拍视频一区二区 | 人人做人人干 | 国产在线是视频有精品 | 免费国产黄网站在线观看动图 | 色情无码鲁鲁A的电影 | 农村黄a三级三级三级 | 又白又紧大屁贵妇的肥水 | 国产精品久久久久久一级毛片 | 中文天堂在线视频 | 看真人视频一级毛片 | 午夜免费在线观看 | 国内精品久久久久久久久 | 最新亚洲国产手机在线 | 九九久久精品国产免费看小说 | 久久最新免费视频 | 日本阿v视频高清在线 | 网站在线| 欧洲色情三级欧美三级视频 | 国产无吗一区二区三区在线欢 | 欧美97欧美综合色伦图 | 五十路一区二区三区视频 | 一级毛片免费下载 | 娇喘呻吟欲仙欲死的娇妻 | 欧美a极品极品欧美 | 天天干天天射天天操 | 中文天堂www资源 | 欧美在线色 | 色天天综合网色鬼综合 | 日本高清网 | 亚洲国产熟妇无码一区二区 | 日本一区二区三区在线视频观看免费 | 91香蕉在线视频 | 亚洲一区二区三区无码中文A片 | 日本老妇乱子伦中文视频 | 一级毛片不卡片免费观看 | 久久aa毛片免费播放嗯啊 | 欧美精品在线观看 | 成人综合国产乱在线 | 黄页网站在线视频免费 | 亚洲精品做爰无码片 | 国产午夜爽爽窝窝在线观看 | 日韩在线观看精品 | 妻子免费高清电视剧 | 色情狠久久AV五月综合五月 | 国产AV一区二区三区人妻 | 97色在线视频 | 亚洲国产综合另类视频 | 亲胸揉胸膜下刺激视频午夜小说 | 欧美大陆日韩一区二区三区 | 色丁香在线视频 | 无人区AV在线观看 | 国产色精品久久人妻无码看片软件 | 亚洲乱码国产乱码精华 | 亚洲五月综合 | ts人妖在线| 欧美三级A做爰在线观看 | 欧美高清视频看片在线观看 | 久久一级 | 一区二区三区不卡在线 | 男人一边吃奶一边做爰免费视频 | 日本一本免费线观看视频 | 亚洲H成年动漫在线观看不卡 | 狠狠色噜噜狠狠狠狠69 | 国产亚洲精品97在线视频一 | 中文字幕精品AV一区二区五区 | 天天拍夜夜操 | 亚洲综合伦理 | 看片免费黄 | 欧洲成人在线观看 | 美女裸乳裸体无遮挡免费A片软件 | M字腿绑椅子玉势笔撑夹住双小说 | 黄色资源在线观看 | 成人午夜特黄AAAAA片男男 | 91网站免费看 | 91黄色大片 | 最近中文字幕国语免费完整 | 中文字幕中文字幕在线 | 99er久久国产精品在线 | 国产揄拍国产精品 | 亚洲国产精品久久久久秋霞影院 | 日韩 欧美 国产 师生 制服 | 欧美极品video粗暴 | LINODEIPHONE孕妇视频欢迎你 | 国产毛A片啊久久久久久保和丸 | 中文国产成人精品久久下载 | 日韩一级一欧美一级国产 | 欧美高清 hd videotv | 色偷偷男人的天堂a v | 国产小视频国产精品 | 久久久人精午夜精国 | 欧美zzzo00另类高清 | 在线中文天堂 | 2024一級特黃色毛片免費看 | 国产精品国产三级国产专区不 | 高清在线一区二区 | 老师解我胸罩让我去他办公室 | 总裁呻吟双腿大开男男H | 久久国产精品免费视频 | 久久九九免费看少妇高潮A片 | 亚洲精品久荜中文字幕 | 大香网伊人久久综合网2021 | 五月色播影音先锋丁香 | 免费看午夜高清性色生活片 | 亚洲欧美中文日韩二区一区 | 丝瓜视频未满十八严禁 | 美女露出尿口让男人揉动态图网站 | 国产乱妇无码大黄AA片 | 色悠久久久久综合欧美99 | 成人高清影院 | 国产美女视频一区二区三区 | 伊伊人成亚洲综合人网 | 国产成人深夜福利在线观看 | 色欲AV久久一区二区三区 | 一二三区乱码不卡手机版 | 我要色播网 | A片放荡少妇高潮喷水小说 A片高潮抽搐揉捏奶头视频 | 巜疯狂的少妇4做爰 | 久久综合九色综合 | 麻豆视传媒免费版 | 欧美日韩视频二区三区 | 韩国三级精品 | 99成人 | 色天天综合网色天天 | 日韩视频一| 91最新网站免费 | 日韩精品视频观看 | 狠狠色婷婷 | 色哟哟精品网站在线观看 | 云边有个小卖部高清 | 美国毛片毛片全部免费 | 美女脱内衣露出了奶头无马赛克图片 | 久久这里只精品热在线99 | 黄色一级性生活视频 | 成年女人毛片免费播放视频m | 波多野结衣三区 | 男人边吃奶边摸边做刺激情话 | 国产又黄又爽又色视频免费软件 | 欧美重囗味成人无码区 | 最好看的2018中文在线观看 | 黄色片网站在线观看 | 四房播播网址 | 精品午夜中文字幕熟女人妻在线 | 有一婷婷色| 农村黄a三级三级三级 | 久久草色播| 日韩人妻无码精品系列 | 2021国产成人精品久久 | 国产99久久九九免费精品无码 | 亚洲阿v天堂无码在线 | 中文无码人妻在线一区不卡 | 又污又黄又无遮挡网站 | 日日夜夜天天干 | 日本大片高清免费视频 | 天堂资源在线最新版 | 亚洲精品一区二区三区四区久久 | 国产日产国无高清码2020 | 男人J进入女人P呻吟视频免费 | 在线不卡日本v二区到六区 在线岛国片免费观看无码 在线高清无码欧美久章草 在线观看 有码 制服 中文 | 久久黄网 | 长泽雅美av | 国产女人水真多18毛片18精品 | 在线永久看片免费的视频 | 老司机综合网 | 天天射天天干天天插 | 久久久久久久尹人综合网亚洲 | 玖欧美性生交XXXXX无码 | 亚洲综合久久成人A片红豆 亚洲综合激情小说 | 精品久久看| 成人自偷拍一区二区 | 国产a高清| 天天躁日日躁狠狠躁中文字幕 | 黄色网址分享 | 日韩一区二区三区不卡 | 性欧美丰满xxxx性久久久 | 国产又色又爽又黄的网站在线一级 | 国产亚洲日韩精品激情 | 2021天天躁狠狠燥 | 成人午夜精品 | 嗯啊灬别停啊灬用力灬快 | 老师的丰满大乳奶水在线观看 | 国产精品久久久久成人免费 | 在线成人免费观看国产精品 | 日本亚洲精品久久蜜臀 | 老师的兔子好软水好多无弹窗 | 亚洲永久精品ww47 | 午夜宅宅伦电影网中文字幕 | 亚洲区视频| 美女精品久久久久久国产潘金莲 | 韩国三级日本三级美三级 | 在线观看免费av网站 | 4虎影院网址大全 | 国产手机在线精品 | 蜜桃色情在线观看 | 成人国产欧美大片一区 | 欧美性受xxxx黑人xxxx | 2020最新国产自产精品 | 亚洲日本一区二区一本一道 | 亚洲欧美手机在线观看 | 九九热在线免费 | 热热色原网站 | 高清av电影 | 日韩国产精品视频 | 日韩精品久久久毛片一区二区 | 三妻四妾免费播放电视剧大全 | 成人福利网 | 欧美一区视频在线 | 婷婷精品视频 | 久久视频在线视频 | 日韩欧无码一区二区三区免费不卡 | 欧美xxxxx在线观看 | 鲁一鲁综合 | 日本电影经典影院 | 在线观看国产三级视频 | 午夜免费观看 | 青草精品 | 日日噜噜夜夜狠狠久久aⅴ 日日噜噜夜夜狠狠扒开双腿 | WWW国产精品内射老师 | 99热在线免费观看 | 动漫精品视频一区二区三区 | A片试看120分钟做受视频 | 中文在线不卡 | 黑人影院| 精品香蕉99久久久久网站 | 第四色俺去也在线视频 | 天天操天天干天天射 | 四虎影视高清视频在线观看 | 日本高清免费中文字幕不卡 | 国产精品国产三级国产潘金莲 | 天堂√在线官网 | 星野亚希快播 | 精品福利资源在线导航网址 | 日产亚洲一区二区三区 | 无码国产69精品久久久久 | 亚洲一区欧美 | 一级毛片全部免 | 国产成人无码AA片免费看 | 婷婷五色| 久热精品视频在线观看99小说 | 一本一道日韩一二三四区免费 | 波多野结衣一区二区三区在线观看 | 大陆一级毛片 | 2018天天拍拍天天爽视频 | 国产精品久久久久久久久99热 | 免费观看添你到高潮视频 | 日韩美女大全视频在线 |