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

enciclopédia

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

zrmuukohgd

13 Oct 2025(atualizado 13/10/2025 às 12h49)

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

Temas

Compartilhe

Itamaraty critica ataque aéreo de Israel na Faixa de Gaza?.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 jogos de vestir e maquiar todas as princesas da disneyits 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

Zarb_The_Bedouin_answer_to_barbecue.txt

Institui??es financeiras apostam em gest?o compartilhada do autoatendimento Tecban Valor Econ?mico.txt ponto quente e os explorar entretenimento.

GRáFICOS

nos eixos

Your_pictures_on_the_theme_of_my_best_photo.txt

Italian_vegetable_oil_to_power_Cherwells_bin_lorries_.txt lazer e os explorar moda.

Navegue por temas

JBS impulsiona emprego e planeja promover 40 mil colaboradores em 2024 JBS Valor Econ?mico.txt Irriga??o eleva safra e já atinge 8,5 mil hectares Agronegócio Valor Econ?mico.txt Irm? de Bruna Marquezine curte The Town com ator que já foi affair de Anitta.txt Israel promete furac?o de ataques em Gaza para for?ar Hamas a aceitar rendi??o.txt Italys_undercover_pizza_detectives.txt Instituto Aegea potencializa a??es ESG e refor?a objetivo da Aegea de deixar legado águas do Rio, Aegea e Instituto Aegea Valor Econ?mico.txt Investidores em criptomoedas priorizam mais clareza regulatória e seguran?a robusta Binance Valor Econ?mico.txt Inteligência artificial redefine rotina jurídica no Brasil.txt Inteligência artificial vira o principal motor da transforma??o Inova??o Valor Econ?mico.txt Is_cold_water_swimming_good_for_you.txt
久久精品视频在线直播6 | 日本视频免费在线 | 亚洲伊人情人综合网站 | 91精品国产高清久久久久 | 国产真实自拍 | 日韩色情无码免费A片 | 亚洲一区二区三区四区五区六区 | 师尊被掐着腰做到潮喷纯肉GB | 色狠狠AV老熟女 | 美女大乳图片 | 欧美在线视频一区在线观看 | 好骚综合在线 | 天天色天天射综合网 | 99精品视频免费 | 欧美在线一区二区 | 亚洲男人的天堂A片我要看 亚洲免费久久 | 国产精品久久久久久免费 | 黄色三级视频在线观看 | 日本爆乳无码一区二区漫画 | 色妹子影院 | 成人午夜视频在线观看 | 一级毛片免费在线观看网站 | 婷婷丁香五月缴情视频 | 性生交大全免费看 | h色网站| 久热re在线视频精品免费 | 日本三级韩国三级韩级在线观看 | 狠狠干狠狠操视频 | 草草国产| 亚洲精品午睡沙发系列 | 狠狠丁香| 俺去也官网 | 看黄免费在线 | 久久九九热 | 欧美一区二区三区视频在线 | 亚洲a级大片 | 在线观看 有码 制服 中文 | 影音先锋男人在线资源资源网 | 4虎在线永免费最新 | 一区二区人妻精品无码A片 一区二区人妻无码欧美 | 日本ww色 | 涩涩动漫网站入口 | 玖玖国产在线 | 人妻夜夜爽天天爽三区麻豆AV网站 | 国产亚洲精品97在线视频一 | 在线观看高清黄网站免费 | 波多野吉衣一区二区三区四区 | 成人亚洲欧美日韩在线观看 | 成片一卡三卡四卡免费网站 | 草草视频免费在线观看 | 成人全黄A片免费看 | 成人不卡视频 | 国产视频福利一区二区 | 日韩内射美女片在线观看网站 | 五月六月丁香婷婷激情 | 全黄H全肉禁乱公 | 日本高清免费毛片大全 | 一区二区三区美女视频 | 在线高清国语成人网站 | 单亲真实乱子伦免费视频 | 天天综合天天综合色在线 | 成人免费播放视频777777 | 可以直接看的av网址站 | 亚洲国产中文字幕 | 久久成人国产精品免费 | 国产对白国语对白 | 8050网午夜一级毛片免费不卡 | 国产三级在线观看 | 狼狼躁日日躁夜夜躁A片 | 色老头AV亚洲一区二区男男 | 三级视频网址 | 中文字幕在线观看网站 | 午夜影院网站 | 亚洲欭美日韩颜射在线二 | 日本最新免费的一区二区 | 久久国产精品无码视欧美 | 亚洲国产精品久久精品成人 | 欧美一级夜夜爽 | 无码人妻中文在线佐佐木明希 | 伊人成综合网伊人222 | 天天操夜夜操狠狠操 | 日韩国产精品欧美一区二区 | 精品国产成人AV在线看 | 五月综合色婷婷影院在线观看 | 精品国产午夜福利精品推荐 | 亚洲无人区电影国产 | v天堂中文在线 | 天天操夜夜操夜夜操 | 久久精品全国免费观看国产 | 黄色毛片视频免费 | 成熟YIN荡美妞A片视频麻豆 | 在线毛片片免费观看 | 娇妻被朋友玩得呻吟在线电影 | 国产高清精品91在线 | 久久精品国语 | 美女裸身照(无内衣)动态图 | 麻豆国产巨作AV剧情 | 成熟妇女A片高潮免费看 | 在线观看欧美一区 | 多人交换做爰波多野结衣图片 | 日韩欧美成人免费中文字幕 | 国产91精品新入口 | 中字幕视频在线永久在线 | 亚洲综合色婷婷六月丁香 | 亚洲欧美一区二区三区麻豆 | 91po国产在线高清福利 | 在线成本人动漫视频网站 | 久久免费看少妇高潮A片JA | 免费一级国产大片 | 最新国产福利 | 欧美又大又粗又爽无码视频 | 日韩欧美伦理片 | 国产又黄又爽胸又大免费视频 | 东京道一本热中文字幕 | 性欧美videos高清喷水 | 日韩精品卡4卡5卡6卡7卡3卡 | 伊人久久亚洲精品一区 | 日韩精品一区二区三区中文字幕 | 另类网站 | A级毛片内射免费视频 | 激情五月婷婷色 | 黑人巨茎大战俄罗斯美女 | 国精品午夜不卡福利 | 性一交一乱一交A片久久四色 | 黄桃AV无码免费一区二区三区 | 91在线中文字幕 | 精品无码一区二区三区中文字幕 | 亚洲骚妇图片网 | 91久久线看在观草草青青 | 双乳被老汉玩弄A级毛片A片小说 | 九九热视频免费观看 | 免费国产一级特黄久久 | 天海翼一区二区三区四区 | 国自产拍偷拍精品啪啪AV | 2018天天拍拍天天爽视频 | 美日韩在线观看 | 免费看成人AA片无码视频吃奶 | 窝窝午夜看片成人精品 | 肉多NP 巨H校园 | 久久综合久综合久久鬼色 | 99国产精品久久人妻 | 黄色你懂的 | 国产精品福利尤物youwu | 最爽的亂倫A片中国国产 | 精品国产香港三级 | 国产精品人妻无码久久网站 | 激情文学小说区另类小说同性 | 精品久久久一二三区 | 8x成人在线 | 亚洲欧洲日韩国产一区二区三区 | WWW亚洲精品久久久无码 | 2021国产成人综合亚洲精品 | 校园舂色另类小说经典色 | 五月丁香综合啪啪成人 | 亚洲毛片大全 | 在线播放zljzljzljzlj | 国产99久久久国产精品免费看 | 亚州老熟女A片AV色欲小说 | 亚洲精品一区二区三区精品 | 一本色道婷婷久久欧美 | 182tv在线看 1769国内精品观看视频 | 午夜性啪啪A片免费AAA毛片 | 日韩一区二区不卡 | 中文字幕人妻丰满熟女 | 无码日本精品一区二区三 | 免费观看日韩大尺码观看 | 国产69精品久久久久99不卡 | 色婷婷六月亚洲婷婷丁香 | 国产1区2区三区不卡 | 国产另类ts人妖一区二区 | 日韩三级一区二区三区 | 丝袜诱惑在线视频 | 拔擦拔擦8X永久华人免费播放器 | 国产精品久久久久久久久久直 | 麻豆吧| 男男腐文污高干嗯啊快点1V1 | 色爱区综合激月婷婷激情五月 | 成年妇女免费播放 | 中文字幕日韩精品一区口 | 日本一区二区三区视频在线观看 | 日韩熟女精品一区二区三区 | 69看片| 成年人在线免费网站 | 亚洲国产天堂久久精品网 | 又色又爽又黄的在线视频免费看 | 国产精品伦理久久久久 | 麻豆精品国产精华精华液好用吗 | 日本无码熟妇人妻在线视 | 免费的毛片视频 | 狼人综合狼人综合 | 精品久久一区二区三区 | 三个馊子伦着玩小说冫 | 亚洲最大的熟女水蜜桃AV网站 | 成人做爰A片三免费视频 | 性久久久久久久久波多野结衣 | 日韩视频免费一区二区三区 | 中文字幕不卡一区 | 国产AV一区二区三区传媒 | 国产成人青草视频 | 日韩欧美视频一区二区三区 | 精品伊人久久久久网站 | 色综合久久久久综合体桃花网 | a篇片在线观看 | 一本大道一卡二卡三网站 | 97青草最新免费精品视频 | 丁香五月啪激情综合 | 亚洲一区二区三区在线播放 | 好男人视频社区精品免费 | 丰满多毛少妇做爰视频 | 国产综合无码一区二区色蜜蜜 | 素人约啪第五季 | 国产毛多水多女人A片 | 一区二区三区在线 | 四川一级片 | 日韩色情无码一本二本三本 | 中字幕视频在线永久在线 | 极品成人 | 久久五月综合婷婷中文云霸高清 | 无翼乌之全彩爆乳口工不知火舞 | 毛片新网址 | 在线视频 日本 | 亚洲成人黄色片 | 国产视频中文字幕 | 日日摸天天摸97狠狠婷婷 | 欧洲-级毛片内射 | 日韩精品视频免费 | 香港三级日本三级韩国三级韩 | 最近免费中文字幕MV | 2024国精产品一二二线精华液 | 欧美一级影院 | 最近的中文字幕免费完整版 | 色五月小说 | 亚洲黄色网址大全 | 视频搜索 | 伦理电院网 | 国产午夜AV亚洲欧美小说 | 999www成人免费视频 | 国产在线二区三区熟女A级 国产在线播放精品视频 | 国内揄拍国产精品人妻门事件 | 日韩三级国产 | JLZZJLZZ亚洲乱熟在线播放 | 四虎成人网| 古风一女N男到处做高H | 高清一区二区亚洲欧美日韩 | 在线91色| 抖音成长人版破解 | 深夜特黄a级毛片免费播放 深夜日韩 | 中国毛片网站 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 啪啪婷婷 | 日日摸天天添天天添无码蜜臀 | 成年女人免费看一级人体片 | 粉泬毛多水多30岁女人都是水 | chinese乱子伦xxxx国语对白 | 97精品一区二区视频在线观看 | 色婷婷色综合缴情网站 | 午夜视频在线观看国产 | 免费国产黄色片 | 永久无码日韩A片免费看麻豆精品 | 免费中文字幕日产乱码 | 日本一卡二卡三卡四卡免费观 | 被工地工人轮着上雯雯 | 男女做爰猛烈动高潮A片色情 | 一区二区三区日韩免费播放 | 高潮无遮挡成人A片在线看 高辣H文黄暴糙汉文H | 苏小妍直播漏内裤 | 久久人妻精品国产一区二区 | 在线视频一区二区三区四区 | 麻豆国产精品AV色拍综合 | youjizzxxx在线观看| 可以看三级的网站 | 欧美日韩一区二区三区四区在线观看 | 三级视频兔费看 | 美女视频永久黄网站免费观看 | 福利视频99 | 影音先锋 av天堂 | 性做久久久久久蜜桃花 | 亚洲综合社区 | 少妇无码吹潮久久精品AV | 91色视频在线观看 | 人妻女警官痴汉电车在线 | 亚洲 欧美 日韩 国产 视频 | 玉蒲团5之初入桃源洞2 | 久久精品国产亚洲麻豆 | 欧美一级黄色片 | 水蜜桃视频在线播放下载 | 麻豆视频在线观看完整版 | 国产亚洲麻豆精品AA片在线观看 | 欧美丰满熟妇BBB久久久 | 91精品国产免费久久久久久 | 99在线观看视频 | 毛片三级在线观看 | 亚洲精品高潮久久久久久日本 | 欧美日韩高清在线观看 | 国产成人禁片免费观看视频 | 搭讪的法则迅雷下载 | 国产香线蕉手机视频在线观看 | 香蕉成人啪国产精品视频综合网 | 麻豆AV久久无码精品久久 | 欧美性xxxx极品hd欧美 | 91久久网| 91宅男噜噜噜66在线观看 | 沈清秋屁股扒开臀缝调教 | 色图色小说 | 酒色网小说 | 无套内谢少妇毛片A片软件 无套内谢少妇毛片A片小说色噜噜 | 少妇我被躁爽到高潮A片 | 色情无码永久免费视频网站APP | 国产xx肥老妇视频奂费 | 亚洲ci网 | 日本成人福利 | 欧美日本高清动作片www网站 | 咪咪久久 | 西班牙一级特级毛片dvd | 人人草97| 成年在线影视免费观看 | 欧美色网络 | 欧美叉叉叉BBB网站 欧美成 人 网 站 免费 | 疯狂揉小泬到失禁高潮在线 | 女同桌张开腿让我爽了一夜 | 久久精品视频在这里16 | 老司机午夜精品 | 欧美高清一区二区三 | 一本色道久久综合狠狠躁 | 免费观看电影 | 日本网站av地址 | 精品久久久久久久无码久中文字幕 | 日韩精品第1页 | 精品成人资源在线观看 | 日日干日日草 | 成年女人免费播放影院 | 另类电影专区 | 午夜亚洲精品 | 黄色网页在线看 | 日韩 视频在线播放 | 终结的炽天使动漫免费观看第一季 | 久久免费看视频 | 中国一级特黄大片毛片 | 99蜜桃臀久久久欧美精品网站 | 精品91精品91精品国产片 | 日韩成人三级 | 日韩色小说 | 日本中文字幕有码在线视频 | 欧美亚洲天堂网 | 国产69精品久久久久人妻 | 天天躁狠狠躁 | 日韩免费视频播播 | 色窝窝亚洲AV在线观看 | 日本欧美一区二区三区免费不卡 | 国产AV精国产传媒 | 免费a级网站 | 五月色婷婷中文开心字幕 | 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 久色亚洲 | 免费观看久久精品视频 | 日韩免费视频播放 | 亚洲国产精品日本无码网站 | 脱了在阳台趴着去H | 爱你几何在线观看 | 两根一起用力挺进宫交 | 国精产品一区一区三区MBA下载 | 日本在线你懂的 | 欧美日韩精品在线 | 开心网四房播播 | 波多野结衣中文丝袜字幕 | 国产福利在 线观看视频 | 日韩 高清 无码 人妻 | 奇米影视777四色米奇影院 | 中出内射颜射骚妇 | 国产亚洲玖玖玖在线观看 | 色播成人网 | 日本少妇内射视频播放舔 | 四虎紧急自动转跳在线视频 | 亚洲欧美日韩国产精品第不页 | chinese spank网站| 影视AV久久久噜噜噜噜噜三级 | 日本一区二区三区在线看 | 久久一日本道色综合久 | 女同69式互添视频在线看 | 亚洲AV成人无码久久精品A片 | A片好大好紧好爽视频免费 A片女女女女女女BBBB | 天天干天天干天天干 | 中文字幕人妻A片免费看 | 日韩亚洲国产高清免费视频 | 久久亚洲国产高清 | 亚洲一区二区三区秋霞秋理 | 欧美成人免费在线观看 | 亚洲欧美在线观看一区二区 | 成人免费精品网站在线观看影片 | 奇米四色奇米四色444影视盒 | 国产内地激情精品毛片在线一 | 亚洲香蕉视频综合在线 | 久久精品国波多野结衣 | 色中色导航| 天天毛片| 亚洲欧美天堂网 | AV色欲无码人妻中文字幕 | 欧美劲爆婷婷五月久久 | 亚洲欧洲日本天天堂在线观看 | 凸凹视频在线 | 久久五月综合婷婷中文云霸高清 | 在线观看黄网视频免费播放 | 久久厕所精品国产精品亚洲 | 四虎国产免费 | 特级做A爰片毛片免费看无码 | mcc聚色导航 | 99视频在线免费观看 | 欧美一级片网站 | 欧美又粗又长A片XXOO在线看 | 欧美一级三级 | 久久九九色 | 日b在线观看 | 天天躁日日躁成人字幕aⅴ 天天躁日日躁aaaaxxxx | 国产精品久久久久久日本 | 劲爆欧美精品13页 | 天天在线综合网 | 牛牛影视精品一区二区在线看 | 看一级 | 韩国成人理伦片免费播放 | 欧洲乱码一卡2卡三卡4卡高清 | 99re66热这里只有精品免费观看 | 中午字幕在线观看 | 成人性化生活视频 | 丝瓜污视频 | 精品国产一区二区三区四区精华液 | av手机在线播放 | 一本二本三本AV亚洲电影 | 免费的很黄很污的全部视频 | 天堂网在线最新版官网 | 国产乱人对白A片麻豆 | 最新网站网址永久发布 | 国产又粗又猛又爽又黄的A片小说 | 在线播放国产不卡免费视频 | 蝌蚪网在线视频 | 好好的日视频www | 婷婷综合久久狠狠色成人网 | 免费无码毛片一区二区A片 免费无码精品黄AV电影 | 伊人大香人妻在线播放 | 再次出发 电影 | 久久国产一久久高清 | 91中文字幕在线播放 | www.五月花555| 国产v片在线观看 | 日韩不卡免费视频 | 精品卡一卡三卡四卡乱 | 国产成人一区二区三区在线观看 | 国产一在线 | 国产精品色情国产三级小说 | 国产精品久久国产三级国电话系列 | 色爱区综合激情五月综合激情 | 三级网站在线 | 一区二区三区高清不卡 | 日本一本无码中文字幕 | 天天操夜操 | 国产色情伦在线观看 | 久久一日本道色综合久 | 五月天丁香激情 | 在线观看国产精选免费 | 影音先锋中文字幕无码资源站 | 999国产精华是正规产品吗 | AV剧情麻豆映画国产在线观看 | 香港一级淫片高清视频 | 国产又粗又猛又爽又黄A片 国产又粗又猛又爽又黄A片漫 | 日韩精品视频在线免费观看 | 最近韩国日本免费观看 | 色爱区综合激情五月综合色 | 两个人免费视频在线观看直播 | 高清欧美性xxxx成熟 | 日韩欧美 亚洲视频 | 草草在线视频 | 深夜a级毛片免费视频 | 日韩美一区二区三区 | 波多野结衣一区二区三区88 | 欧美日韩亚洲一区二区三区 | 亚洲人成电影网站在线观看 | 国产成人精品综合久久久软件 | 国产片91| 好紧好湿太硬了我太爽了文字 | 久久国产精品久久精 | 人妻体内射精一区二区三四 | 玖玖爱视频在线观看 | 99热这里只有精品免费国产 | 风流少妇A片一区二区蜜桃 风流少妇与黑人做爰 | 日本欧美视频在线观看三区 | 免费A级毛片无码无遮挡 | 国产91一区二区在线播放不卡 | 综合伊人 | 精品综合久久久久97 | 日韩VS欧美VS亚洲VS无码 | 99在线在线视频免费视频观看 | aa一级黄色片 | 欧美野外疯狂做受XXXX高潮 | 在线观看黄的网站 | 日韩一区二区三区在线 | 好男人WWW神马社区在线观看 | 欧美老熟妇又粗又大 | 色综合一区二区三区 | 国产精品久久久久一区二区三区共 | 夜夜骑夜夜操 | 国产精品日本一区二区在线播放 | 99精品久久毛片A片 99精品免费久久久久久久久日本 | 日韩黄色小说 | 嗯啊灬别停啊灬用力灬快 | 福利区体验区120秒免费 | 日本毛片久久国产精品 | 亚洲地址一地址二地址三 | 窝窝社区精品免费视频 | 中文字幕在线日本 | 45分钟级毛片免费视频 | 狠狠躁日日躁夜夜躁A片小说免费 | 美女写真福利视频网站 | 黄色在线免费观看网站 | 亚洲高清毛片一区二区 | 天堂资源中文在线 | 国产欧洲野花视频WWW | 99自拍视频在线观看 | GAY空少被体育生开菊网站 | 日本精品人妻无码免费大全 | 2019最新久久久视频精品 | 久久精品视频免费 | 伊人久久大香线蕉观看 | 好爽又高潮了毛片免费下载 | 精品日本亚洲一区二区三区 | 97公开视频| 校园高H校草深一点H | 国产最新自拍 | 久久九九少妇免费看A片 | 国产亚洲日本精品无码电影 | 亚洲人成在线播放无码 | 成人网导航 | 激情综合色综合啪啪开心 | 德永千奈美快播 | 精东视频影视传媒制作精品免费版 | 国内美女自拍在线视频观看 | 中文字幕在线视频免费观看 | 男女做羞羞的事视频免费观看无遮挡 | 天天综合网天天综合色不卡 | XL上司带翻译不打马赛 | 日本少妇内射视频播放舔 | 天美传媒国产剧影视公司 | 日韩在线免费观看视频 | 中文字幕亚洲激情 | 久久久综合九色合综国产 | 极品少妇高潮啪啪AV无码 | 久久精品国产亚洲麻豆 | 一级毛片人与动免费观看 | 国产高清乱码又大又圆 | 日本高清中文字幕 | 日本一本免费线观看视频 | 91精品国产亚洲爽啪在线观看 | 美女内射 | 国产SUV精品一区二区6 | 香港aa三级久久三级不卡 | 国产日本一线在线观看免费 | 近親五十路六十被亲子中出 | 日韩精品视频网 | 五色网| 国产极品精频在线观看 | 好爽快点我受不了了国产 | 激情做a全过程片A | 久久精品国产一区二区三区四区 | 桃子视频在线高清免费观看 | 精品国产一区二区三区久久影院 | 天堂8在线天堂资源bt | 武侠古典91色综合 | 中文毛片无遮挡高潮免费 | 色宅男午夜电影网站 | 综合啪啪 | 在线观看h片| 99久久精品免费看国产一区二区三区 | 水蜜桃传媒 | 在线欧美中文字幕农村电影 | 国产真实乱对白精彩 | 亚洲va在线va天堂成人 | 最近电影大全免费 | 有没有看片的免费资源 | 高清国产天堂在线BT免费 | 王伟忠周梦莹最新章节 | 亚洲欧洲日本无在线码天堂 | 网址在线观看你懂的 | 亚洲se吧 | 男女又黄又刺激B片免费网站 | 开心动漫网 | 伊人中文字幕波多野结衣 | 欲香欲色天天影视大全 | 黄色一级片在线 | 亚洲暴爽AV天天爽日日碰 | 2024夜夜干天天骑日日日 | 少妇被躁爽到高潮无码文 | 成人午夜福利视频镇东影视 | 在线永久看片免费的视频 | 欧美一级高清在线观看 | 国产成人久久综合热 | 成人黄色在线观看 | 日本阿v视频高清在线中文 日本成熟少妇高潮A片 | 最近中文字幕完整视频 | 国产精品久久久久无毒 | 国产精品蜜臂在线观看 | 成人午夜18免费看 | 色草视频 | 日本aaaaa高清免费看 | 色情成人小说一区 | 国产精品久久久久久久久久久威 | 桃子视频在线观看免费完整版 | 2019毛片| 欧美一道本 | 久久九九久精品国产尤物 | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 亚洲最大天码AV在线观看 | 日本三级香港三级乳网址 | 苍井空a 集在线观看网站 | 日本黄色免费网站 | 欲求不満の人妻松下纱荣子 | 国产免费看片 | 免费一级淫片aaa片毛片a级 | 亚洲色图迅雷高速 | 综综综综合网 | 小骚货 爽不爽 | 亚洲、国产综合视频 | 四虎影视在线地址最新 | 1区2区3区4区产品在线线乱码 | 亚洲女同在线观看 | 种地吧少年第一季 | 国产精品扒开腿做爽爽爽视频 | 蝌蚪免费视频在线观看 | 欧美日韩一区二区三区韩大 | 波多野给衣一区二区三区 | 亚洲国产成人精品无码区99 | 欧美精品3atv一区二区三区 | 亚洲精品第一页中文字幕 | 无码日本精品一区二区片 | 草草免费观看视频在线 | 国产亚洲日本精品无码电影 | 高潮迭起AV乳颜射后入 | 麻豆优品 | 久久好在线视频 | 不良女警免费看 | 欲色AV无码一区二区人妻 | 97一期涩涩97片久久久久久久 | 国产精品 欧美在线 另类小说 | 免费看啪啪人A片AAA片玩具 | 无人区卡一卡二卡网站 | 成人黄网18免费观看的网站 | 蜜桃臀在线成人亚洲 | 99视频30精品视频在线观看 | 丁香花在线影院观看在线播放 | 亚洲人大战欧洲人A片 | 91蝌蚪论坛 | 激情男女高潮射精AV免费 | 另类国产ts人妖系列 | 免费成人在线观看 | 免费观看黄视频网站 | 短篇H爽文小说集大全 | 亚洲字幕 | 欧洲VIDEOS重口变态深 | 欧美一级视频精品观看 | 亚洲2023无矿砖码砖区 | 91在线视频观看 | 国精产品99永久中国有限公司 | 巨乳水多后入抽插 | 四色777| 亚洲欧美综合在线天堂 | 成AV人片在线观看WWW | 97视频人人 | 性69式视频在线观看免费 | 深夜福利成人 | 狠狠色丁香婷婷综合欧美 | 国产情侣一区二区 | 国产网曝手机视频在线观看 | 一个色综合亚洲色综合 | 中文字幕不卡在线播放 | 国产免费a级片 | 欧美视频在线高清在线观看 | 欧美日韩福利视频一区二区三区 | 在线观看黄色网页 | 久久精品国产精品亚洲艾 | 永久免费品色堂 | 蜜桃五月天 | 日本无码专区亚洲麻豆 | 涩涩电影网 | xxx日本在线 | 成人性生交大片免费看中国A片 | 精品国产91乱码一区二区三区 | 97色女| 无码中文字幕热热久久 | 色综合第一页 | 日本视频一区在线观看免费 | 色秀影院| 91一区二区午夜免费福利网站 | 国产一级第一级毛片 | 四虎在线观看一区二区 | 国产成人深夜福利在线观看 | 美女强奷到抽搐在线播放 | A片扒开双腿猛进入免费观 A片好大好紧好爽视频免费 | 久久国产精品99久久久久久牛牛 | 黄色免费在线观看网站 | 玖玖在线播放 | 国产91青青成人a在线 | 在线高清国语成人网站 | 伊人狠狠 | 国产精品一区二区精品视频导航 | 福利视频导航网址 | 免费毛片基地 | 麻豆传媒在线完整视频免费 | 欧美视频在线观看xxxx | 日本毛片久久国产精品 | 久久永久免费 | 国精产品888 | 欧美激情A片久久久久久 | 男人把女人桶到喷白浆的软件免费 | 高黄H文各种姿势PLAY道具1V1 | 成人美女黄网站色大色费 | 日韩精品电影在线 | 一人上面2人试看60 一色桃子中文字幕人妻熟女作品 | 亚洲精品偷拍AV一区二区 | 你好湿呀!小妖精快叫 | 国产亚洲精品久久无亚洲 | 曰韩少妇内射免费播放 | 狼人社区 | 亚洲欧美日本国产综合在线 | 思思久久好好热精品国产 | 一起探恋爱综艺在线观看第八期 | 中文字幕国产视频 | 高清乱码一区二区三区 | 久久女人被添全过程A片 | 日本欧美中文字幕人在线 | 国精产品999永久中国有限公司 | 中文字幕极速在线观看 | 四虎影视四虎在钱免费 | 国产伦精品一区二区三区免.费 | 一个人在线观看的免费视频 | 成人无码A片一区二区三区免 | 人人叉人人 | 人人操在线播放 | 免费看18污黄 | www.毛片在线观看 | 夜夜操天天插 | 一区二区三区不卡视频 | 色情A片成人网站免费看视频 | 色综合亚洲一区二区小说 | 天天碰免费视频 | 性饥渴的漂亮女邻居BD视频 | 日本一道无马二区日本道专区 | 九九99re热线精品视频 | 99久久久精品免费观看国产 | 秋霞论理片 | 狠狠色丁香久久综合婷婷 | 在线免费观看日本视频 | 日韩亚洲国产中文字幕欧美 | 进去粗粗硬硬紧紧的好爽免费视频 | 蜜臀91精品国产免费观看 | 一级毛片一级毛片一级毛片一级毛片 | 少妇AV射精精品蜜桃专区 | 欧美激情在线播放一区二区三区 | 九一视频免费看 | 少妇做爰片AA | 第四色婷婷墓地 | 午夜视频在线观看免费观看在线观看 | 99久久精品免费看国产一区二区三区 | 99re热视频在线 | 久久久久久99 | 天堂√在线中文资源网 | 中文字幕精品波多野结衣 | 亚洲国产三级在线观看 | 最新无码国产在线视频9299 | 日本不卡在线观看免费v | 国产强伦姧人妻一区二区 | 在线色 | 国语乱码中文字幕 | 俺也去官网 | 日本大胆欧美人术艺术 | 97成人碰碰在线人妻少妇 | 免费在线黄网 | 波多野结衣在线一区二区 | 欧美三级视频在线 | 国产超级乱淫视频播放免费 | 免费搞逼视频 | 在线免费观看日韩视频 | 91导航福利| 国产啪精品视频网免费 | 国产做A爰片久久毛片A片软件 | 又大又粗成人A片免费看 | 性色小视频 | 波多野一区| 少妇A片出轨人妻偷人视频 少妇高清性色生活片成人版 | 国产三级在线观看免费 | 8x在线播放| 插老师进去了好大好舒服小说 | 亚洲色综合成人 | 国产成人无精品久久久久国语 | 国产精品视频在线观看 | 日韩精品AV一区二区三区 | 五月天婷婷丁香 | 色涩色 | 日本无码免费AAAAAA片 | 色情AV亚洲精品一区二区 | 成人无码A片视频播放 | 韩国三级在线高速影院 | 欧美一级在线全免费 |