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

qlx

12 Oct 2025(atualizado 12/10/2025 às 06h08)

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

Temas

Compartilhe

Zayn Malik sugere que foi alvo de racismo no One Direction em nova música; leia versos'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 resultado do jogo do bayer livercurseits 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

Your_pictures_on_the_theme_of_winter_walks_.txt

Programas de diversidade est?o acabando? Entenda como o movimento dos EUA pode chegar ao Brasil foco e os moda conhecimento.

GRáFICOS

nos eixos

'Her vulnerability still resonates deeply' Why Madonna's Ray of Light is 2025's hottest album.txt

Planet Hemp critica 'sequestro da liberdade de express?o' por 'defensores da ditadura'; banda se prepara para turnê de despedida 'A última Ponta' foco e os entretenimento entretenimento.

Navegue por temas

Por mais seguran?a e conforto, Pra?a S?o Salvador, em Laranjeiras, recebe nova ilumina??o Por mais seguran?a e conforto, Pra?a S?o Salvador, em Laranjeiras, recebe nova ilumina??o Homenageada no Festival Negritudes Globo, Alcione fala sobre o combate ao racismo: ‘Temos que reagir’ Homenageada no Festival Negritudes Globo, Alcione fala sobre o combate ao racismo: ‘Temos que reagir’ 'Fico buscando o propósito de enfrentar tudo isso', diz Preta Gil sobre tratamento contra o cancer CasaFolha inicia meu projeto de dar aulas', diz ex-jogador Ra\u00ed, que estreia na plataforma Parada do Orgulho LGBT+ atrai turistas de outras regi?es do Brasil vindos de caravanas para a celebra??o Conhe?a o 'príncipe' que ajudou a difundir religi?es afro a gaúchos e será tema enredo da Portela em 2026 Oscar 2024: veja FOTOS da premia??o Nata??o, corrida de rua e prova infantil: Rio se prepara para maratona de eventos esportivos
黄瓜污影院 | 色欧美| 国产com| 美国三级在线 | 99福利视频 | 黄网站在线播放 | se成人国产精品 | 日本免费一区二区在线观看 | 中文字幕卡二和卡三的视频 | 欧美变态味孕交 | 五月婷婷六月丁香激情 | 97色伦在线观看 | 六月丁香婷婷网 | 蜜臀91精品国产高清在线观看 | 丁香婷婷六月综合交清 | 成人高清| 亚洲精品做爰无码片麻豆 | 国产日韩亚洲精品视频 | 国产精品av免费观看 | 国产激情在线观看 | 最好的免费电影网站 | 久久久精品日本一区二区三区 | 含着不拔出来 H 1V1 | 闲人综合| 无码成人性爽XO视频在线观看 | 蜜桃视频m3u8在线观看 | 真人做爰片免费视频毛片中文 | 国第一产在线精品亚洲区 | 亚洲欧美偷拍视频一区 | 性欧美video另类hd亚洲人 | 色中色导航 | 国产人成精品香港三级古代 | 欧美亚洲啪啪 | 97se亚洲综合自在线尤物 | 黄a级网站在线观看 | 邓丽欣6分钟种子 | 日韩一区二区三区无码A片 日韩一区二区三区射精 | 亚洲第6页 | 国产黄色在线视频 | 欧美色人阁 | 99综合色 | 久久精品2 | 国产亚洲精品久久久性色情软件 | 国产在线欧美精品中文一区 | 免费真实播放国产乱子伦 | 中文字幕高清免费不卡视频 | h片免费观看 | 国产精品色拉拉免费看 | 五月婷丁香| WWW久久只有这里有精品 | 成人免费播放视频777777 | 免费做A爰片久久毛片A片 | 工口里番全彩无肉码3D啪啪 | 亚洲午夜精品A片久久不卡蜜桃 | 好硬啊进得太深了A片无码公司 | 四虎影视在线看免费完整版 | 大尺度哺乳福利视频 | 成人毛片18岁女人毛片免费看 | 日韩av线 | 欧美激情bd高清在线播放 | 小浪货你夹得我真紧 | 色网址在线观看 | 日本电影在线看正片 | 999精品国产人妻无码系列久久 | 免费成人论坛 | 欧日韩一区二区三区 | 一二三影院 | 色美妞 | videos欧美成人 | 日韩高清成人毛片不卡 | 男男野战爆了我的菊BL | 成免费播放观看在线视频 | 欧美成a人片免费看久久 | 看全色黄大色黄大片爽一次 | 一区二区三区不卡在线观看 | 成人午夜久久精品 | 欧美搡BBBBB搡BBBBB | 国产 欧美 亚洲 中文字幕 | 国产高清免费观看 | 97影院理论片手机 | 日本三级在线观影 | 亚洲欧美日韩国产一区图片 | 抖音成长人版 V2.3.1 无限观看版 | 一级做a爱视频 | 鲍鱼网站最新网名2021 | 少妇特黄A片一区二区三区免费看 | 欧洲成人| 国产一二三 | 国模左儿 | 亚洲清色| 成年在线观看免费高清完整版视频 | 成年人黄色网址 | 国产免费午夜a无码v视频 | 五月婷婷之综合缴情 | 色综合久久久久久久久久久 | 亚洲欧洲一二三区 | 香蕉AV久久一区二区三区 | 草草视频免费在线观看 | 一级爱 | 国产色婷亚洲99精品AV在 | 2021国产成人精品久久 | 少妇交换做爰6 | 2019最新久久久视频精品 | 国产精品久久久久久久免费A片 | 性躯干| 欧美精品乱码99久久蜜桃 | 四虎必出精品亚洲高清 | 成人午夜毛片在线看 | 熟女毛毛多熟妇人妻AV | 一卡二卡卡四卡免费高清欢迎您 | 婷婷亚洲五月 | 一本色道婷婷久久欧美 | 国内精品久久久久久久久久久久 | 亚洲欧洲一级 | 武侠艳妇屈辱的张开双腿 | 亚洲精品第一区二区APP | 精品国产手机视频在在线 | 全肉高黄高h的小说推荐 | 一个色成人导航 | 公交车艳妇系列1一40 | 波多野结衣久久国产精品 | 黄色网址免费观看 | 精品人妻无码一区二区三区下一页 | 国产精品久久久久无码人妻网站 | 秋霞午夜伦高清在线观看 | 国产精品日本不卡一区二区 | 国产高清国内精品福利色噜噜 | 夜色贵族图片 | 北女网 | 日本黄页网站免费 | 男女啪啪永久免费观看网站 | 女人被添全过程A片试看 | 亚洲中国精品精华液 | 亚洲黄色免费网站 | 色情综合另类小说图片 | 午夜欧美艳情视频免费看 | 日韩精品一区二区三区色欲AV | 国语乱码中文字幕 | 亚洲 欧美 自拍 美腿 卡通 | 大地影院日本韩国电影免费观看 | 波多野吉衣42部在线播放 | 欧美成人黄色网 | 宝贝看我是怎么吃你水蜜桃的视频 | 久久久久久久久毛片精品 | 色偷偷噜噜噜亚洲男人 | 在线免费观看日本视频 | 国产亚洲欧美在线 | 色翁荡熄又大又硬又粗又视频软件 | 乳色吐息在线观看全集免费观看 | 久久久国产精品免费A片蜜臀 | 抖抈app免费 | 国产色欲一区二区精品久久呦 | 精品久久久久久久久免费影院 | 老司机午夜免费福利视频 | 国产亚洲精品久久久久秋霞不卡 | 小秘书夹得好紧太爽H大肉乳 | 日韩免费视频 | 国产精品久久久久永久免费看 | 精品中字一卡2卡三卡4卡乱码 | 被伴郎的内捧猛烈进出H | 国产在线不卡免费播放 | 日韩欧美中文字幕送别 | 毛片A级毛片免费观看品善网 | 国产在线观看免费视频在线 | 亚洲成人国产 | 黄色a一级视频 | 91爱视频| 国产乱码精品一区二区三区四川 | 亚洲一区二区三区高清 | 丁香花视频免费播放 | 日韩欧美视频一区 | 欧美日本日韩 | 亚洲国产熟妇无码一区二区三区H | 午夜视频在线观看一区二区 | 无码欧美毛片一区二区三 | 久久国产精品系列 | 欧美xxxx做受欧美88bbw | 韩国最污禁网站免费观看 | 国内熟女精品熟女A片小说 国内揄拍国产精品人妻在线A片 | 国产不卡在线视频 | 啪一啪射一射插一插 | 国产精品久久毛片A片杨颖 国产精品久久人妻互换 | 天堂中文字幕在线 | 重返20岁 下载 | 无套内谢少妇毛片A片999 | 成年人免费网站视频 | 波多野结衣三级在线 | 青青青国产精品手机在线观看 | 又硬又粗进去好爽A片天美APP | 国产成人久久综合第一区 | 麻豆一区区三区四区产品麻豆 | 日韩不卡一卡二卡3卡四卡2021免费 | 久青草国产视频 | 国产精品电影久久 | 永久免费观看国产裸体美女 | 日产中文字乱码卡一卡二视频 | 乱公和我做爽死我了A片 | 国产亚洲日韩精品激情 | 国产一国产a一级毛片 | 99久久点在线精品 | 中文精品字幕电影在线播放视频 | 成全免费高清观看在线 | 色六月婷婷亚洲婷婷六月 | 六月婷婷啪啪 | 国产又色又爽又黄的免费站 | 日韩伊人网 | 日本黄在线| 在线不卡日本v二区三 | 最近中文字幕高清中文字幕8 | 韩国无删减| 天天曰夜夜操 | 国产鲁鲁视频在线播放 | 级R片内射在线视频播放 | 99久久精品免费观看区一 | 在线播放国产不卡免费视频 | 日韩在线视频观看免费网站 | 精品99卡1卡2卡3乱码 | 国产一级在线播放 | 女人18毛片a级毛片一区②区 | 欧美a色| 国产又黄又硬又湿又黄的A片小说 | 亚洲色噜噜狠狠站欲八 | 真实国内老女人的露脸视频 | 成人网导航 | JLZZJLZZJLZ老师好多的水 JLZZJLZZ亚洲乱熟在线播放 | 精品AV亚洲一区二区 | 国产精品一区二区在线播放 | 中文国产乱码在线人妻一区二区 | 蜜桃精品免费久久久久影院 | 午夜天堂一区人妻 | 伊人网综合网 | 樱花草无码专区日本 | 啊快进去好深用力啊使劲 | 蜜桃日本免费MV免费播放 | 爆乳隔壁人妻中文字幕 | 校园刺激全黄H全肉细节文 校园激情人妻古典武侠 | 日韩精品色情AV无码一区 | 国产麻豆放荡AV剧情演绎 | 亚洲 欧美 国产 日韩 中文字幕 | 日日摸天天爽天天爽视频 | 免费大片黄在线现看国语 | 日本又色又爽又黄的A片视频免费 | 久久草草亚洲蜜桃臀 | 色情AB又爽又紧无码网站 | 吉吉影音先锋av资源网 | 99蜜桃臀久久久欧美精品 | 开心四房色播网 | 色妞基地| 娇妻被交换粗又大又硬视频 | 中文字日产幕码三区的做法大全 | 欧洲丰满少妇做爰视频爽爽 | 777片理伦片在线观看 | 久久免费影院 | 国内自拍 在线 亚洲 欧美 | 曰曰鲁夜夜免费播放视频 | 污污的网站免费在线观看 | 国产www在线观看 | 日本无码特黄午夜视频在线观看 | 精品人妻无码一区二区三区50 | 97视频在线看| a级黄色片网站 | 香蕉成熟时 | WWW亚洲精品久久久无码 | AV亚洲AV永久无码精品网 | 撸一撸网| 欧美日韩在线视频不卡一区二区三区 | 黄色小说在线播放 | 亚洲第一天堂WWW网站 | 麻豆久久婷婷综合五月国产 | 在线不卡日本v二区 | 亚洲国产中文视频二区 | 免费国产a国产片高清不卡 免费观看一级欧美在线视频 | 一级黄色片免费看 | 日本wwwwww| 天海翼一区二区三区四区 | WWW亚洲色大成网络.COM | 人人做人人干 | 2024四虎影视最新在线 | 中文字幕亚洲乱码熟女在线萌芽 | a片网| 色综合久久98天天综合 | 欧美日韩国产一区二区三区不卡 | 欧美综合区自拍亚洲综合图 | 免费成人论坛 | 欧美一级久久久久久久大 | 99久久中文字幕 | 人善交zzzxxx另类 | 中文字幕免费播放 | 国产精品免费网站 | 性欧美久久| 亚洲精品久久国产高清小说 | 成人亚洲A片V一区二区三区日本 | 五月色播先锋在线丁香 | 日b免费视频 | 特黄A又粗又大又爽A片 | 亚洲免费无码中文在线 | 日本国产一卡二卡三新区 | 亚洲精品美女久久久久99 | 男JI大巴进入女人的视频 | 午夜日| 我被几个男的玩爽到死 | 国产精品伦一区二区三级视频 | 四虎影视国产精品永久在线 | 2分30秒不间断踹息声音频app | 大香网伊人久久综合网2021 | 国产精品国产三级国产专 | 橘梨纱star 409 | 国产色欲一区二区精品久久呦 | 把手戳进美女尿口里动态图 | 国产三级日本三级美三级 | 老头把我添高潮了A片视频 另类老太婆BBWBBW | 无码A片激情做爰视频在线观看 | 中文精品一区二区三区四区 | 久久综合桃花 | 束美阁影视传媒 | 最新高清无码专区在线视频 | 国产亚洲精品久久久久久入口 | 欧美成人香蕉网在线观看 | 国产免费看插插插视频 | 天天综合天天操 | 性爱视频在线播放 | 黄色国产网站 | 日本 欧美 国产 | 要狠狠撸| 性欧美精品xxxx| 特级精品毛片免费观看 | 日本好看的电影 | 日本成熟人妻理伦无码新片 | 美女国产毛片A区内射 | 亚洲无码一区二区 | 守寡的岳引诱我岳潮湿的肥厚 | 国产精品亚洲二线在线播放 | 国产精品99久久久久久宅男 | 日韩在线视频观看在线看 | 久久国产精品免费观看 | 亚洲成成品网站源码中国有限 | 久操精品视频 | 日本免费网站观看 | 日韩做A爰片久久毛片A片毛茸茸 | 午夜一区二区免费视频 | 狠狠撸电影 | 色中色域名 | 99热最新网址 | 特级黄国产片一级视频播放 | 久久婷婷激情 | 亚洲精品第一区二区APP | 2022精品福利在线小视频 | 亚洲国产中文字幕在线视频综合 | 又长又粗又硬宝贝想要爽 | 亚洲精品无码高潮喷水A片软 | 久久国产精品自线拍免费 | 国产毛片又爽又大A片 | 日本污污视频在线观看 | 欧美一级片在线视频 | 91制片厂制作果冻传媒麻豆 | 久久国产成人精品Av | 欧美人成一本免费观看视频 | 日本成熟少妇高潮A片 | 99视频99| 中文字幕天堂中文 | 国产日韩在线欧美视频 | 最近日本韩国高清免费大全 | 一级女性全黄久久生活片免费 | av天堂.com | 国产特黄特色a级在线视频 国产素人自拍 | 依人九九 | 一道本二区视频不卡 | 91在线视频福利 | 人色网| 小片网 | 香港理论 | 婷婷97狠狠的狠狠的爱 | 女人18毛片a级毛片一区二区 | 小黄文纯肉污到你湿 | 69成人| 亚洲乱码卡3卡4卡新区 | 女医生一级毛片 | 久久精品免费人成人A片 | 日日碰狠狠躁久久躁综合网 | 国精产品自偷自偷综合下载 | a91ac ma果冻传媒 | 成熟妇女免费看A片视频 | 国产无限免费观看黄网站 | 成人免费久久精品国产片久久影院 | 三级高清 | 8x成人永久免费视频 | 免费又粗又硬进去好爽A片 免费又色又爽又黄的视频 免费中文字幕囯产在线网站 | 最好在线观看免费韩国日本电影 | 国产专区_爽死777 | 欧美日韩在线观看视频 | 久久久A片精品一区二区 | 国产hd高清freexxxx | 亚洲精品国产成人无码区A片 | 欧美一级第一免费高清 | 亚洲精品国产精品乱码不卡 | 欧美网站黄 | 色婷婷综合激情 | 欧美高清视频在线高清观看 | 精品三级内地国产在线观看 | 日韩手机在线 | 国精品无码一区二区三区在线A片 | 孕妇孕妇aaaaa | 亚洲天堂中文字幕在线观看 | 人妻少妇被粗大爽9797PW | good神马电影伦理午夜 | 国产成人精品男人免费 | 丁香九月婷 | 婷婷丁香五月激情综合站 | 日本二区三区欧美亚洲国 | 苏伊士运河堵物价涨 | 欧美xxxxhd videos| 久久精品国产免费 | 九九香蕉 | 69国产精品久久久久久人妻 | 91高清免费国产自产拍2021 | 久久久乱码精品亚洲日韩小说 | 男主是军人的肉肉H | 黄色的视频网站在线观看 | 久久久精品3d动漫一区二区三区 | 欧美视频在线观看网站 | 最新jizz欧美| 同性男打屁股spank网站 | 中文字幕 日韩 人妻 无码 | 国产人妻人伦精品久久久 | 最近免费的中文字幕一 | 成人爽a毛片在线视频网站 成人首页 | 内射爽无广熟女亚洲 | 久久久久久久国产视频 | 99视频在线看观免费 | bl文H全肉 | 人民的名义 未删减版 | 调教美女校花 | 国产熟妇久久精品亚洲熟女图片 | 狠狠色噜狠狠狠狠色综合久 | 真实国内老女人的露脸视频 | 99思思久热在线视频 | 成 人 黄 色 免费 网站无毒 | 在线观看成人网站 | 日本国产成人精品无码区在线网站 | 日本免费视频费观看在线 | 四虎影视在线观看2024a | 精品一级毛片 | 亚洲 欧洲 视频 伦小说 | 一级生活毛片 | 久久精品国产在热久久2024 | 免费电| 欧美伦理三级 | wwwwxxxxx日本| 色老板亚洲视频在线观 | 亚洲国产精品无码成人A片小说 | 丁香五月天的最新地址 | 久久精品免视看国产成人2021 | 丰满老熟女白浆直流 | 欧美性另类 | 2019色 亚洲 日韩 国产 在线 | 最近中文字幕高清中文字幕网1 | 麻豆久久久9性大片 | 大香伊蕉在人线国产手机看片 | 国产片91 | 国产精品视频h | 污网站在线观看 | 第一福利视频导航 | 美国三级日本三级久久99 | 国产精品久久人妻无码电影张丽 | 八匹狼影院 | 国精产品一二二区传媒有哪些 | 日本一区二区三区在线网 | 日韩欧美一区二区三区免费看 | 精品人妻无码一区二区三区9 | 日本视频中文字幕 | 免费无码一区二区三区A片下载 | 少妇做爰片AA | 国产精品大尺度尺度视频 | 少妇被躁爽到高潮无码A片小说 | 国产第一页浮力影院入口 | 婷婷综合激情 | 免费无码又黄又爽又刺激 | 久久久久久久国产免费看 | 久久久91精品国产一区二区 | 天堂tv亚洲tv日本tv不卡 | 免费的av不用播放器的 | 国产成人亚洲综合a∨婷婷 国产成人亚洲综合91精品555 | 伦韩国理片在线观看 | 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 | 国产精品a无线 | 久久受www免费人成_看片中文 | 国产在线拍揄自揄视频菠萝 | 国内精品影院久久久久 | 国产超级乱淫视频播放免费 | 国产日产亚洲欧美综合另类 | 伊人第四色 | 成人国产AV精品久久久久 | 亚洲色妞 | 日韩 视频在线播放 | 黄色免费网站在线播放 | 免费无码又爽又黄又刺激网站 | 国产一级 黄 片 | 色99在线| 色阁阁| 美国色吧影院 | 国产手机在线自在拍 | 成人性大片免费观看网站YY | 亚洲AV久久无码精品九九小说 | 国产精品一区二区四区 | 女体拷问研究所下载 | 最近完整中文字幕大全高清3 | 激情一区二区三区成人 | 免费看成人羞羞视频网站在线看 | 免费性爱视频 | 86版农场主三个女儿 | 97久久久久国产精品嫩草影院 | 95国产精品人妻无码久 | 在线久色| 人妻精品久久无码区新狼窝 | 国产无人区码卡二卡3卡4卡网站 | 三级免费网| 三级成人AV电影在线观看 | 国语对白久久 | 在线观看 日韩 | 一道本在线观看视频 | 麻豆乱码国产一区二区三区 | 丁香四房播播 | 毛篇片在线观看地址 | 久久大香伊蕉在人线国产昨爱 | 国产欧美日韩灭亚洲精品 | 色视频免费网站 | 五月婷婷激情第五季 | 亚洲人成色777777精品音频 | 特级毛片全部免费播放免下载 | 国产做国产爱免费视频 | 欧美精品第三页 | 国产精品白浆一区二小说 | 久久日本片精品AAAAA国产 | 高清无码专区av | 果冻传媒破解版 | 久久日本无码一区二区三区 | 国产精品人成视频免费999 | 天天综合天天射 | 日本视频免费观看 | 2020中文字幕乱码免费 | 亚洲永久精品日本无码 | 人妻熟女一区二区AV | 涩涩网站在线观看 | 免费电影院 | 午夜精品A片一区二区三区 午夜激情在线观看 | 亚洲产国偷V产偷V自拍A片 | 图片区 亚洲 在线视频 | 日韩在线高清 | 久久久这里有精品 | 亲胸吻胸添奶头GIF动态图免费 | 日日摸夜夜摸狠狠摸97 | 99RE久久爱五月天婷婷 | 在线97| 国产精品第1页在线观看 | 井上真央av | 天天舔天天爽 | 国产亚洲精品成人AA片小说 | 少妇护士放荡激情嗯啊小说 | 97在线观看视频 | 欧美一级精品 | 一级毛片视频免费 | 医生别摸啊摁摁 | 久久成人小视频 | 国内久经典AAAAA片 | 国产黄大片在线观看 | videos欧美成人 | 四虎最新免费网址 | 天天操夜夜操夜夜操 | 欧美电影在线观看 | 国产熟妇另类久久久久婷婷 | 久久国产精品免费网站 | 人妻丰满精品一区二区A片 人妻换人妻AA视频 人妻激情综合久久久久蜜桃 | 天天综合网色中文字幕 | 婷婷激情五月AV在线观看 | 久9久9精品免费观看 | 亚洲天堂网在线观看视频 | 波多野结衣下载 | 日产乱码免费一卡二卡 | 午夜成人亚洲理伦片在线观看 | 手机久草视频分类在线观看 | 国模欢欢高清炮交图片 | 日本精品人妻无码免费大全 | 性欧美人 | 亚洲中文字幕永久在线 | 一级高清毛片免费a级高清毛片 | 国产AV亚洲AV麻豆专区 | 欧美人妖ts| 国产午睡沙发客厅25分钟 | 国产激情无码激情A片软件 国产激情无码激情A片免费软件 | 顶级欧美做受xxx000 | 性夜黄A片爽爽免费视频 | 色涩网| 中文字日产幕码三区的做法大全 | 国产成年无码V片在线 | 精品熟女少妇AV久久免费A片 | 福利视频在线播放 | 国产成人综合在线观看网站 | 亚洲国产成人久久精品动漫 | 开心片色99xxxx | A片好大好紧好爽视频 | 国产又色又爽又高潮免费视频麻豆 | 日产乱码一二三四五 | 国产免费观看大片黄 | 免费啪视频在线观看视频久18 | 裸体BBBBBBBBB | 欧美成人h版整片合集 | 天美麻豆精东果冻天美传媒 | 蜜桃在线观看无码免费 | 请以你的名字呼唤我 电影 请以你的名字呼唤我 | 偷拍亚洲网友图片区 | 无码人妻精品一区二区三区蜜臀 | 国产综合成人亚洲区 | 人妻体内射精一区二区三四 | 亚洲国产中文字幕在线观看 | 成 人 网 站毛片 | 色综合久久精品亚洲国产消防 | 工口里番全彩无肉码3D啪啪 | 国产一区日韩二区欧美三区 | 一级v片 | 亚洲色无码A片一区二区红樱 | 亚1州区2区3区产品乱码 | 波多野吉衣一区二区三区四区 | 久久久精品中文字幕麻豆发布 | 人妻无码AV一区二区三区 | 五月婷婷激情综合网 | 久久天天躁狠狠躁夜夜躁2014 | 亚洲精品一区二区精华液 | 亚洲春色视频 | 精品国产一区二区三区久久影院 | 国产特黄特级AAAAA片 | 九九热线有精品视频99 | 精品国产乱码久久久久久小说 | 91亚洲国产成人久久精品网站 | 一区二区人妻无码欧美 | 亚洲国产美女视频 | 成人黄色在线 | 新版天堂资源中文在线 | 视频一区国产 | 最近中文字幕完整视频高清1 | 成人无码在线视频区 | 日韩 在线视频精品 | 久久免费99精品久久久久久 | 午夜福利1000集无码 | 久久亚洲精品中文字幕三区 | 成年在线观看免费高清完整版视频 | 欧美一区二区三区不卡免费 | 99热黄色| 日本在线高清不卡免v | 新版天堂中文资源8在线 | 亚洲精品女同中文字幕在线 | 好爽插到我子宫了高清在线 | 国产97色在线 | 日韩 | 国语高清精品一区二区三区 | 欧美videos娇小| 中文字幕乱倫视频 | 国产刺激熟女短视频在线观看 | 久青草网站 | 美女扒开尿口让男生添 | 工口里番h彩色无遮挡全彩 工口里番全彩全彩无遮挡 工口里番全彩无肉码3D啪啪 | 韩国电影甜性涩爱 | 久99视频精品免费观看福利 | 亚洲成人免费电影 | 国产麻豆 | 中文字幕熟女人妻偷伦在线视频 | 色丁香婷婷 | 美女扒开下面让男生桶白浆 | 无码精品一区二区三区视频色欲网 | 成人免费在线视频 | 成人性爱视频在线观看 | 亚洲色欲色欲202477小说 | 色导站 | 欧美在线视频二区 | 中文成人在线 | 亚洲天天网综合自拍图片专区 | 国产寡妇性视频 | 毛片免费下载 | 最色影院 | 国产单亲乱子伦视频 | 美国毛片网 | 少妇我被躁爽到高潮A片 | 久综合色| 蜜桃色情在线观看 | 国产精品成人免费 | av国产精品 | 免费人成A片在线观看免费 免费视频精品38 | 软玉娇香多肉1V3 | 无码又爽又刺激A片涩涩动漫软件 | 欧美性福 | 蜜桃色欲AV久久无码精品软件 | 色播视频在线观看 | 66成人网 | 永久免费观看的毛片的网站下载 | 激情婷婷综合 | 东京热中文无码 在线 | (无码)中文在线 | 国产高清第一页 | 免费的成品短视频app推荐 | 成年男人裸j免费网站 | 丰满五十老女人性视频 | 五月婷婷开心深深爱 | bbbbbbbbb毛片视频| 成人日韩熟女高清视频一区 | 美女国产毛片A区内射 | 在线播放精品视频 | 国产精品扒开腿做爽爽青涩情侣 | 黄色在线观看网站 | 暗卫把王爷做爽翻H | 久99视频精品免费观看福利 | 国产免费久久爱久久啪 | 日韩在线永久免费播放 | 亚在线观看免费视频入口 | 亚洲最大激情中文字幕 | 一区二区三区视频在线观看 | 四房婷婷在线视频播放 | 激情影院费观看 | 国产免费又黄又爽又色毛 | 2019天天操夜夜操 | 午色影院| 久久狠狠第一麻豆婷婷天天 | 色偷偷色偷偷色偷偷在线视频 | 亚洲国产精品毛片∧v卡在线 | 免费在线视频一区 | 欧美伊久线香蕉线新在线 | 综合自拍亚洲综合图区 | 色综合第一页 | 亚洲精品久久久WWW游戏好玩 | 四四色播 | 少妇大叫又粗又大太爽A片 少妇大乳妓女毛片A片 | 中文字幕无码一区二区免费 | 久久99麻豆婷婷AV1区2区 | 亚洲A片永久无码精品 | 成人片在线视频 | 伊人综合在线 | 囯产精品宾馆在线精品酒店 | 最近免费2019中文字幕大全 | 日本3级网站 | 亚洲免费人成 久久 | 色欲人妻AAAAAAA无码 | 欧美操穴视频 | 久久最新网址 | 成人福利网站 | 久久综合色区 | 激情A片久久久久久久 | 在线看黄色的网站 | 无码欧美黑人又大又 | 天堂资源在线中文 | 日韩无码一道v | 中文字幕日本特黄AA毛片 | 丁香花五月| 免费看a毛片 | 琪琪热码在线中文字幕 | 国产精品久久久久久人妻精品A片 | 无码高潮又爽又黄A片软件 无码激情做A爰片毛片A片日本 | 四房色播手机版 | 97人人添人人澡人人澡人人澡 | 成人小视频在线观看 | 眉间雪电视剧全集在线观看 | 秋霞一区二区三区 | 成人片黄网站A片免费 | 美女扒开腿让男人桶尿口 | 97色精品视频在线观看免费 | 亚洲乱妇老熟女爽到高潮的片 | 欧美伦理三级 | 激情五月 色播五月 | 丁香综合网 | 3d肉蒲团观看地址 | 日韩欧美视频一区二区 | 日韩一级免费毛片 | 国产日韩欧美在线视频一本到 | 日韩精品午夜视频一区二区三区 | 免费jizz在线播放视频 | 国产中文欧美日韩在线 | 激情综合网五月激情 | WWW亚洲精品久久久无码 | 四虎必出精品亚洲高清 | 就去色网站 | 2020精品国色卡一卡二 | xxxx日本在线| 中文在线日韩亚洲制服 | 日韩avdvd| 在线免费视频国产 | jizz国产在线播放 | 老师的丰满大乳奶水在线观看 | 免费无码又爽又刺激A片小说在线 | 国产日韩精品一区在线观看播放 | 96精品专区国产在线观看高清 | 国产11一12周岁女毛片 | 精品久久久爽爽久久久AV | 免费国产黄网站在线观看可以下载 | 日韩免费一区 | 直接看毛片 | 国产成人爱片免费观看视频 | 五月婷婷开心 中文字幕 | 国产成人精品123区免费视频 | 日本毛片的免费高清视频 | 国产一二三四区在线观看 | 日本波多野结衣在线 | 97av在线| 天美传媒新剧国产剧影视公司 |