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

byb

13 Oct 2025(atualizado 13/10/2025 às 00h23)

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

Temas

Compartilhe

Assessor especial da Presidência deve receber embaixador da Venezuela na semana que vem – Noticias R7'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 quina concurso 5768its 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 fast fashion could end up as this beach trash.txt

Itamaraty critica ataque aéreo de Israel na Faixa de Gaza? – Noticias R7 explorar e os conhecimento foco.

GRáFICOS

nos eixos

You_are_under_digital_arrest_Inside_a_scam_looting_millions_from_Indians.txt

Assista à íntegra do Balan?o Geral DF deste sábado (6) – Noticias R7 explorar e os conhecimento conhecimento.

Navegue por temas

Embaixadas comemoram o Dia da áfrica, em Brasília – Noticias R7 Embaixada da índia comemora a chegada da primavera – Noticias R7 Evento de tecnologia e ciência, Campus Party, come?a nesta quarta – Noticias R7 Embaixadores repudiam atos racistas da Polícia contra filhos negros – Noticias R7 Motorista embriagado é preso ao tentar atropelar agente de transito e fugir de blitz – Noticias R7 Suspeitos s?o presos por aplicar golpe do falso consignado em vítima do DF – Noticias R7 Polícia monta esquema de seguran?a para depoimentos de integrantes de fac??o – Noticias R7 Santos articula novo estádio "com e sem" a participa??o da WTorre – R7 Esportes Asfalto da faixa exclusiva de ?nibus na W3 sul será trocado por piso de concreto – Noticias R7 Santos aguarda brecha para jogar mais uma vez em S?o Paulo – R7 Esportes
妖精视频一区二区免费 | 精品久久久久不卡无毒 | 国产激情视频在线播放 | 天堂网在线看 | www.天天干| 男人的天堂av2024在线 | 国产在线观看免费视频在线 | 91福利国产在线观一区二区 | 国产亚洲中文日本不卡二区 | 亚洲色欲AV无码成人专区 | 中文字幕乱码中文乱码777 | 91色交视频 | 亚洲一区精品中文字幕 | 亚洲精品高清国产一线久久97 | 九九热这里只有国产精品 | 婷婷成人综合 | 真人做爰直播 试看 | 一二三四视频在线播放社区 | 色豆豆永久免费网站 | 乱子轮熟睡1区 | 免费观看添你到高潮视频 | 毛片无码一区二区三区A片视频 | 欧美一级日本a级v片下载 | 老师您的兔子好软水好多动漫 | 国产成人精品综合久久久软件 | 爽的毛片 | 最近中文字幕完整版视频 | 88av免费观看 | 成人无码精品1区2区3区免费看 | 少妇大乳妓女毛片A片 | 国产成人99 | 搡女人真爽免费视频网站 | 蜜臀AV色欲A片无码一区二区 | 91免费在线看 | 性瘾荡乳H古代 | 一本一道日韩一二三四区免费 | 欧美日韩v | 欧美日韩一二区旡码高清在线 | 国产欧美日韩不卡一区二区三区 | 男女做爰猛烈吃奶摸A片 | 国产在线无码不卡影视影院 | 大乐透23105晒票 | 孕妇孕妇aaaaa级毛片视频 | 老师好大乳好紧好深动态图 | 四虎影视2024最新址 | 风韵人妻丰满熟妇老熟女 | 日韩亚洲国产高清免费视频 | 欧美视频在线观看免费 | 国产精品亚洲玖玖玖在线靠爱 | 免费国产caob视频 | 五月综合激情久久婷婷 | 黑人大操白富美 内射 | 色毛片免费观看 | 人妻夜夜爽天天爽三区麻豆AV网站 | 国产ts在线视频 | 站长推荐国产精品视频 | 亚洲一级毛片视频 | 激情啪啪网站 | 国产一区二区三区不卡在线观看 | 一本久到久久亚洲综合 | 亚洲国产激情一区二区三区 | 2024精品手机国产品在线 | 在线观看国产三级视频 | 91蝌蚪国产 | 色婷婷我要去我去也 | 久久精彩在线视频6 | 亚洲丰满熟妇XXXX性A片 | 欧美群交在线播放1 | 亚洲激情a | 思思玖玖玖在线精品视频 | 黑人啪啪 | 91在线天堂| 四虎影视四虎在钱免费 | 久久久国产精品 | 真实国内老女人的露脸视频 | 黄色免费毛片 | 99久久久精品免费观看国产 | 亚洲精品久久YY5099 | 嘛逗传媒在线观看免费网站 | 99精品免费 | 一级欧美一级日韩片 | 日本三日本三级香港三级 | 亚洲 素人 字幕 在线 最新 | 亚洲精品久久久久久久不卡四虎 | 777奇米四色 | 国产无人区码卡二卡3卡4卡网站 | 天天插天天干天天射 | 好男人资源影院 | 欧美成人家庭影院 | 麻豆一姐视传媒短视频 | www亚洲精品| 精品丰满人妻AV久久久 | 好看的日本电影 | 果冻传媒九一制片厂 | 国产成人精品综合久久久软件 | 给我个可以免费看片的 | 亚洲无码一区二区 | 国内精品久久久久影院亚洲 | 嗯真紧又湿又软 | jizz日本大全 | 最近免费字幕中文大全视频 | 国产女人毛多水多A片视频 国产欧美精品一区二区三区-老狼 | 国产在线播放精品视频 | 久久蝌蚪| 国产SUV精品一区二AV18款 | 久久久久综合中文字幕 | 亚洲骚妇图片网 | 大陆精品自在线拍国语 | 成全免费高清观看在线 | 色噜噜狠狠狠色综合久 | 国产免费人成在线视频视频 | 666夜色666夜色国产免费看 | 亚洲中文字幕婷婷在线 | 2018生活片性色生活片 | 手在线播放波多野结衣 | 伊人久久亚洲精品一区 | 第九色影院 | 欧美在线视频一区在线观看 | 亚洲人成一区二区不卡 | 最近手机中文字幕大全首页 | 天堂国产 | 婷婷色爱区综合五月激情韩国 | 黄色亚洲网站 | xxxx色| 国产露脸无码A区久久蘑菇 国产乱对白刺激视频 | 国产亚洲精品久久久一区 | av色图| 精品爽爽久久久久久蜜臀 | 欧美性生交大片免费看A片 欧美性生交大片免费看A片免费 | 99热久久是有精品首页 | 日本视频免费观看 | 天堂在线v| 成人乱码一区二区三区AV0 | 天堂视频在线视频观看2018 | 韩国高清不卡一区二区 | 亚洲精品日韩一区二区电影 | 四虎家庭影院 | 亚洲精品中文字幕乱码影院 | 国产精品久久人妻互换 | 无码国产欧美日韩精品 | 影音先锋2017av天堂 | 日韩欧美三级在线 | 色情五月亚洲中文字幕 | 国产精品免费视频能看 | 黄页在线观看免费 | 亚洲aⅴ久久久噜噜噜噜 | 国产成人久久久精品毛片 | 天美视频在线观看 | 国产午夜视频在线观看网站 | 成年视频xxxxx在线网站 | 丁香五月综合缴情电影 | 日韩欧美成末人一区二区三区 | 粗大的内捧猛烈进出A片黄 粗大的内捧猛烈进出A片小说 | 丝袜诱惑在线视频 | 国产一区二区三区不卡在线观看 | 调戏床上美女 | 再深点灬舒服灬太大了动态图 | 人人在线碰碰视频免费 | 古装级a毛片免费观看 | 蜜桃精品成人影片 | 亚洲精品一卡2卡3卡四卡乱码 | 日韩在线小视频 | 美女69xxxxx的视频 | 日本人伦一区二区三区 | 国产人成精品香港三级在 | 免费在线视频日本 | 欧美视频日韩视频 | 三级成年网站在线观看 | 99爱视频精品免视看 | 色播视频网站 | 欧美日韩精品一区二区免费看 | 国内视频自拍 | 国产午夜亚洲精品区 | 亚洲 日韩 国产 中文视频 | 欧美三圾片在线观看 | 中文字幕日产乱码国内自 | 九九视频免费观看 | 国产又色又爽又黄的A片 | 波多野结衣在线资源 | 99国模沟沟茂密的黑森林 | 又大又硬又粗再深一点 | 久久福利资源网站免费看 | 女主播在线观看 | 精品无人区麻豆乱码1区2区新区 | 天天看片天天干 | 日本精品久久无码影院 | 日韩久久网 | 日韩免费一级毛片 | 成人做爰WWW | 99热在线这里只有精品 | 色婷婷网 | 久久精品国产亚洲麻豆小说 | 亚洲色女图 | 日本女同在线观看 | 午夜时刻免费入口 | 欧美制服丝袜在线 | 麻豆亚洲精品中文字幕一麻豆 | 风韵丰满熟妇啪啪区老老熟女百度 | 久久亚洲AV成人无码电影A片 | 狠狠色狠狠色综合日日92 | 日韩观看| 免费毛片a在线观看67194 | 日韩精品免费视频 | 中央工作组赴宜春督导锂矿开采 | 日本一本无码中文字幕 | 天天综合网天天综合色 | 中文字幕在线综合 | 爆操欧美 | 2020国产成人精品免费视频 | 汗だく爆乳中出しプレスめぐり | 伦理电影下载网站 | 奇米影色777四色在线首页 | 啪啪内射少妇20241028 | 国产视频a | 伊人二区 | 免费高清视频免费观看 | 无码人妻丰满熟妇A片护士电影 | 亚洲aⅴ久久久噜噜噜噜 | 日本BBW丰满牲交片 日本bbw激情bbw | 古装一级毛片手机免费看 | 丁香婷婷影院 | 高清无码v视频日本www | 国产色精品久久人妻无码看片软件 | 精品免费tv久久久久久久 | 女人色极品影院 | 在线观看的黄色网址 | 欧美在线看欧美高清视频免费 | 性xxxxbbbb免费播放视频 | 欧美操日韩 | 中文字幕一区二区三区在线不卡 | 国产在线精品视频二区 | 国产日韩欧美在线视频一本到 | 日本国产精品无码一区免费看 | XL上司带翻译带中文 | A片娇妻被交换粗又大又硬V | 国产精品专区免费观看 | 玖玖啪 | 中文字幕巨大的乳专区 | 日韩亚洲欧洲在线rrrr片 | 视频一本大道香蕉久在线播放 | 99精品久久久久中文字幕 | 亚洲精品乱码久久久久蜜桃 | 国产乱对白刺激视频 | 日韩系列在线 | 久久久精品久久 | 国产精品人妻无码免费A片导航 | www.五月天| 日韩草逼| 久久国产精品999 | 最近新韩国日本免费看 | 99SE久久爱五月天婷婷 | 操屁股 | 在线观看中文字幕码2024不用下载 | 九九精品成人免费国产片 | 久久精品成人无码A片小说 久久精品国产色欲A片小说 | 军婚H全肉辣文 | 从零开始的异世界生活第一季 | 亚洲精品久久久久无码精品 | 欧美多毛的大隂道 | 成熟少妇AV片在线观看 | 欧美视频日韩视频 | 国产成人禁片在线观看 | 把女人弄爽特黄A大片片 | 狠狠色丁香久久婷婷综合_中 | 久久精品国产99国产精2020丨 | 99热这里| 国产剧情在线精品视频不卡 | 亚洲熟女片嫩草影院 | 欧美黄色一级网站 | 高清自拍亚洲精品二区 | 97SE亚洲精品一区 | 色老妈 | 翁公的巨物挺进了我密 | 欧美极品视频 | 国内美女自拍在线视频观看 | 久久澡人人澡狠狠澡 | 人妻体内射精一区二区三四 | 欧美三级真做在线观看 | 日本福利视频导航 | 色情大尺度吃奶做爰在线观看 | 国产精品午夜免费观看网站 | 最近免费字幕中文大全在线观看 | 五月亭亭六月丁香 | 色欲AV亚洲午夜精品无码 | 欧洲性xxxx | 九九精品视频在线 | 乱子轮熟睡1区 | 2024天堂中文字幕一区在线观 | 色欲AV亚洲A片永久无码精品 | 手机av在线播放 | 伦理电影在线视频网站天堂 | 超碰97人人做人人爱网站 | 伊人第四色 | 日韩一卡2卡3卡4卡乱码在线 | 在线免费观看毛片 | 人人草97 | 三级在线网站 | 国产综合成人亚洲区 | 毛片不卡一区二区三区 | 国产无遮挡A片又黄又爽漫画 | ririai99在线视频观看 | 狠狠躁日日躁夜夜躁A片小说免费 | 人善交zzzxxx另类 | 国产精品婷婷五月久久久久 | 狠狠色噜狠狠狠狠 | 日韩在线视屏 | 久久亚洲欧美 | 人妻熟女斩五十路0930 | 国产精品乱码久久久久软件 | 国产一级特黄在线播放 | 一级一级毛片免费播放 | 亚洲精品久久无码一区二区大长腿 | 在线视频久久只有精品第一日韩 | 十八禁啪漫动漫在线看 | 99视频免费播放 | 内射女校花一区二区三区 | 黄色片在线观看网站 | 4色播| 美女视频大全视频a免费九 美女三级毛片 | 亚洲国产激情一区二区三区 | 中文字幕 无码亚洲 | 一级毛片不卡 | 麻豆精品一区二正一三区 | 一人看片WWW在线视频 | 国产精品内射久久久久欢欢 | 麻花豆传媒剧在线MV免费版特色 | 牛牛社区| 夜色约爱网站 | 国产精品AV无码毛片久久 | 免费护士一级毛片 | 老师解我胸罩让我去他办公室 | 日本免费专区在线观看中破初 | 久见久热 这里只有精品 | 中文无码乱人伦中文视频播放 | 三A级做爰片免费观看春光乍泄 | 亚瑟电影在线观看免费国语 | 国精产品自偷自偷综合下载 | 亚洲免费综合色视频 | 99久久无码一区人妻A片竹菊 | 国产精品不卡在线 | 亚洲一区AV在线观看红楼梦 | 琪琪电影网午夜理论片717西瓜 | 精品在线播放 | 中文精品一卡2卡3卡4卡国色 | 亚洲高清国产拍精品5g | 黄网址免费 | freesex呦交群乱 | 黄网站在线观看 | 九九视频九九 | 五月天亚洲 | 亚洲国产天堂 | 影音先锋av色噜噜影院 | 色翁荡熄又大又硬又粗又视频软件 | 星野亚希 快播 | 久久久91精品国产一区二区三区 | 亚洲AV成人无码一二三在线观看 | 丰满岳乱妇一区二区三区 | 亚洲午夜在线播放 | 欧美午夜精品久久久久久浪潮 | 久久人人精品 | 国内揄拍国产精品人妻在线A片 | 色护士精品影院www 色狠狠色综合吹潮 | 91久久网| 国产人碰人摸人爱免费视频 | 毛茸茸xxx| 欧美成人免费A片爽爽爽 | 直接看毛片 | 国产乱码卡二卡三卡老狼在线观看 | 日本成人在线免费观看 | 亚洲h视频在线 | 久久黄色影片 | 成人A片产无码免费视频软件 | 天天操天天干天天拍 | 一个人的高清视频www | 手机在线亚洲国产精品 | 国产精品网站在线观看免费传媒 | 日本一区二区高清免费不卡 | 91尤物国产尤物福利 | 99久热这里精品免费 | 99热手机在线观看 | 国产午夜视频在线观看网站 | 40集电视剧全部免费 | 偷窥国产亚洲免费视频 | 久久草这在线观看免费 | 欧美黄www免费 | 另类专区av无码 | 大菠萝福利污下载APP | 欧美日韩国产一区二区三区 | 在线看片免费观看 | 高辣H小黄文 | 国产aaaaa一级毛片无下载 | 中文字幕最新 | 四虎影视永久在线精品 | 少妇内射视频播放舔大片 | 天天看片天天干 | 97玖玖| 男女啪啪永久免费观看网站 | 久久久综合久久 | 爱城 亚洲区 | 国产精品玖玖玖在线观看 | 看亚洲人配人配人种jizz | 国产麻豆精品传媒AV国产在线 | 黄色a一级 | 校园黄乱色伦短篇小说 | 幼香阁网站 | 水蜜桃文化传媒网站 | 欧美肥老女人 | 一级人做人a爰免费视频 | 亚瑟在线视频 | 国产一区二区三区成人久久片 | 免费无套内谢少妇毛片A片软件 | 免费看国产黄线在线观看 | 国产制服丝袜91在线 | 泷泽萝拉快播地址 | 91香蕉视频在线 | 亚洲国产女人aaa毛片在线 | 婷停五月深爱五月 | 国产亚洲精品第一综合另类 | 国产极品JK白丝喷白浆在线观看 | 亚洲欧美日韩精品久久亚洲区 | 在线观看国产精选免费 | 乖女H文纯肉芊芊 | 亚洲AV久久久噜噜噜噜 | 日韩精品AV一区二区三区 | 久久精品国产精品亚洲蜜月 | 人妻免费久久久久久久了 | 国产精品久久久久久久人人看 | 亚洲日本中文字幕 | 久久久久久极精品久久久 | 国产精品久久久久久人妻香蕉 | 久草在线草a免费线看 | 歪歪女主播不雅视频 | 国产成人精品福利网站人 | 国产成人A片免费观看 | 亚洲三级网站 | 一级做a爰全过程免费视频毛片 | 欧美在线视频一区二区三区 | 天堂资源在线最新版 | 日韩精品中文字幕视频一区 | 国产素人自拍 | 欧美精品免费xxxxx视频 | 欧美 亚洲综合在线一区 | 欧美精品高清在线观看 | 成电影人免费网站 | 欧美高清在线视频一区二区 | 亚洲一卡2卡3卡4卡5卡乱码 | 一本久到久久亚洲综合 | 视频在线观看一区二区三区 | 日本vs欧美一区二区三区 | videos欧美成人 | 国产精品系列在线观看 | 最近中文国语字幕在线播放视频 | 可以免费观看的电影网 | 久久国产成人亚洲精品影院老金 | 24小时更新视频在线观看免费 | 亚洲图片日本视频免费 | 欧美三级经典免费播放 | 久久六| 欧美性猛交A片索多玛120天 | 丁香五月亚洲中文字幕 | 再深点灬舒服灬受不了了视频 | 在线网站黄色 | 日本欧美亚洲中文在线观看 | 西瓜精品国产自在现线 | 欧美中文字幕 | 高清3d肉蒲团 | 亚洲日韩在线视频 | 影音先锋资源站yyxf2 | 亚洲成A人无码亚洲成WWW牛牛 | 亚洲精品无码高潮喷水A片在线 | 在教室伦流澡到高潮H强圩电影 | 亚洲天天| caoporn免费在线视频 | 窝窝在线视频 | 婷婷草 | 少妇扒开粉嫩小泬视频 | 中文字幕2区 | 欧美日本国产VA高清CABAL | 不卡无在线一区二区三区观 | 日韩一区二区三区免费 | 成人性视频免费网站在线 | 粗大挺进朋友人妻身体里电影 | 97精品国产91久久久久久久 | 国产三级日产三级日本三级 | 一本大道一卡二卡入口2021 | 香蕉97| 国产中文字幕在线播放 | 亚洲欧美日本综合一区二区三区 | 免费女性裸身照无遮挡网站 | 国产瑜伽白皙一区二区 | 真实国产熟睡乱子伦视频 | 无修无遮h韩漫视频网站 | 在线观看亚洲欧美视频免费 | 岳艳的胯下做爰岳艳小说 | 一级做a爱 一区 | 国产一区二区三区在线看片 | 一点色成人网 | 99久久国产露脸人妻精品 | 高树玛利亚qvod | 亚洲AV无码专区国产精品麻豆 | 国产亚洲精品AV片在线观看播放 | 国产99精品一区二区三区免费 | 性做久久久久久坡多野结衣 | 成人福利 | 日本护士做xxxxx视频 | 亚洲色无码播放 | 国产一区二区无码蜜芽精品 | 欧美性受一区二区三区 | 精品无人区麻豆乱码1区2区 | 图片区小说区激情春色 | 丁香最新网址 | 日韩欧美激情兽交 | 欧美天天综合 | 第四色网站最新地址 | 欧日韩美香蕉在线观看 | 免费三级网站 | 思思99re66在线精品免费观看 | 亚洲精品国产一区二区精华液 | 老师你下面太紧进不去小黄文 | 天堂网2021天堂手机版丶 | 日韩一区二区三区不卡 | 亲胸吻胸添奶头GIF动态图免费 | 日韩高清成人 | 伊人69| 精品无人区乱码1区2区3区免费 | 无码日本精品一区二区三 | 亚洲国产日韩欧美一区二区三区 | 国产精品爱久久久久久久小说 | 国产人妻一区二区免费AV | 青草青草久热国产精品 | 婷婷丁香五月啪啪综合 | 精品国产一区二区三区四区勃大卷 | 久久这里只精品99百度 | 日产精品卡2卡三卡乱码网站 | 波多野结衣日韩 | 成人国产欧美大片一区 | 男人j进女人j的图片 | 国产精品人妻午夜福利 | 亚洲男人天堂网2014av | 国产免费一区二区在线A片 国产目拍亚洲精品一区 | 免费的好黄的漫画 | 国产aⅴ片 | 99je全部都是精品视频在线 | 少妇内射视频播放舔大片 | 中文字幕乱偷无码AV蜜桃 | 国产情侣作爱视频免费观看 | 亚洲第一欧美 | 天天射天天操天天干 | 国产99小视频 | 亚洲午夜影视 | 国产精品VIDEOSSEX久久发布 | 亚州AV无码乱码色情 | 亚洲熟妇色自偷自拍另类 | 羞羞答答APP安装以后在手机哪里 | 欧美成人精品一区二区免费 | 尹志平吮小龙女乳 | 毛片不卡一区二区三区 | 国产高潮抽搐在线观看 | 青青久在线视频免费视频 | 日韩精品一区二区三区在线观看 | 久久A情A片一区二区三区无码 | 亚洲精品久中文字幕 | 鸥美毛片| 波多野结衣免费免费视频一区 | fryee性欧美18 19| 欧美日韩加勒比一区二区三区 | 中文天堂在线观看 | 欧洲美女高清一级毛片 | free chinese 国产精品 | 国产亚洲精品AV片在线观看播放 | 熟女人妻水多爽中文字幕 | 97久久精品国产成人影院 | 日韩精品毛片 | 美女图片脱空一点不露 | 成人在免费观看视频国产 | 让杜雅尔丹| 天天爽夜夜操 | 刺激第一页720lu久久 | 少妇系列之白嫩人妻 | 香蕉人妻AV久久久久天天 | 日干夜干天天干 | 在线视频你懂得 | 欧美丝袜女同 | 婷婷六月激情 | 美女扒开尿道让男人捅 | aaaaaaa一级毛片 | 天天曰天天干 | 天堂а√中文最新版地址 | 亚洲AV久久婷婷蜜臀无码不卡 | 久久九九免费看少妇高潮A片 | 在线视频网站你懂的 | 我可以再往深处一点吗视频 | 中文在线免费不卡视频 | 一级女性全黄久久生活片免费 | 闫凤娇bt种子 | 水蜜桃免费视频看爱如潮水 | 麻豆传煤官网APP入口 IOS | 中文字幕精品无码一区二区 | 女人毛多水多高潮A片 | 2018天天干天天操 | 国产高清在线91福利 | 一道本不卡免费高清在线 | 日本无码V视频一区二区 | 91天堂最新在线观看 | 韩国美女激情视频一区二区 | 日本最新免费网站 | 天天干天天插天天 | 爽吗你个小浪货叫大声点 | 色综合一区二区三区 | 伊人久久大香线蕉免费视频 | 黑人大操白富美 内射 | 欧洲每年百万吨电子垃圾流向亚非 | 免费观看美女被cao视频 | 亚洲精品精华液一区二区 | 欧洲免费极品videos | 日本高清免费一本视频在线观看 | 国产一国产一区秋霞在线观看 | 欧美同性精品xxxx | 欧美性受xxxx极品 | 免费精品一区二区三区A片在线 | 婷婷丁香五月缴情视频 | 色网快播 | 亚洲精品深夜AV无码一区二区 | www视频在线观看天堂 | 中文字幕人妻丰满熟女 | www.日本三级| 国产手机在线观看精品视频 | 国产电影在免费播放在线观看 | 花唇扒开(H)双性 | 国产精品久久久久久久A片冻果 | 亚洲AV久久久久久久无码 | 国产AV亚洲精品久久久久久小说 | 大好深啊把腿开开污文腐 | 开心色站 | 久久人人 人人澡 人人澡 | 男人大JI巴做爰好爽视频 | 在线免费观看日本视频 | 日本 欧美 在线 高清 | 久9久9精品视频在线观看 | 日本中文字幕在线观看 | 欧美精品高清无码 | 久久视频这有精品63在线国产 | 韩国青草视频 | 久久免费精彩视频 | 99精品成人无码A片观看 | 综合区亚一洲线观看免费 | 欧美在线视频免费观看 | 欧美性A片又硬又粗又大暴力 | 九一精品国产 | 欧美午夜精品一区区电影 | 久久午夜精品 | 狼人 成人 综合 亚洲 | 五月婷婷综合在线视频 | 日日弄| 国产深夜福利在线观看网站 | 夜夜操综合 | 无码专区久久综合久综合字幕 | 国内色图 | 浪潮AV在线观看高清 | 免费99精品国产自在在线 | 黄色在线观看视频 | 黄色免费网站在线播放 | 一级黄色毛片免费看 | 国产AV天堂亚洲AV麻豆 | 亚洲国产精品二区久久 | 宝贝乖H调教跪趴SM 宝贝乖把腿分大一点h欧阳凝小说 | 一级毛片免费在线观看网站 | 亚洲 欧美 视频 手机在线 | 日本特黄特色视频 | 超碰伊人久久大香线蕉综合 | 女主床戏被进高H | 欧美精品一区二区在线观看 | 国产亚洲精品久久777777 | 一级毛片在线看在线播放 | 免费高清特色大片在线观看 | 国产免费观看黄A片又黄又硬小说 | 18成人在线观看 | 91免费视 | 亚洲AV永久综合在线观看尤物 | 日韩美一区二区 | 老女老肥熟国产在线视频 | 青草网址 | 成人教育av | 少妇无套内谢久久久久 | 光棍影院鬼父1一16 观月雏乃种子 | 日本人jizz | 波多野吉衣一区 | 9999在线视频 | www国产91| 最近新中文字幕大全高清 | 父皇轻点插好疼H限 | 日韩黄色一级视频 | 婷婷丁香五月缴情视频 | 青青青国产精品免费观看 | 精品AV一区二区三区久久 | 丁香五月网久久综合 | 欧美日韩免费播放一区二区 | 夜夜躁狠狠躁日日躁2021 | 亚洲国产精品毛片∧v卡在线 | ofozy99国产| 色综合久久久久久888 | 亚洲欧美视频 国内自拍 | 日日猛噜噜狠狠扒开双腿小说 | 网站免费满18成年在线观看 | 性影院 | 欧美一区二区三区不卡免费 | 麻豆亚洲一区 | 欧美日韩看看2015永久免费 | 自怕偷自怕亚洲精品 | 激情电影色影音先锋 | 久久久久久久免费 | 最新国产精品精品视频 | 三级电影下载 | 国外人成人色视频在线 | 亚洲经典一曲二曲三曲 | 欧美激情视频二区 | 精品亚洲一区二区在线播放 | 国产综合成人亚洲区 | 日本成人免费在线观看 | 国产日产欧产美韩系列影片 | 一级一毛片a级毛片 | 午夜欧美艳情视频免费看 | 99re在线这里只有精品 | 天天色天天综合 | 再次出发 电影 | 国产网站91 | 嫩草国产露脸精品国产软件 | 国产熟女系列丰满熟妇 | 双腿挂他肩上撞击轻哼 | 日韩最新视频一区二区三 | 看全黄大色黄大片老人做 | 99国产揄拍国产精品人妻蜜 | 国产成人精品视频一区 | 国产成人精品综合在线 | 8x在线播放 | 中文字幕免费观看视频 | 朱竹清把我夹得又紧又爽 | www..com黄| 亚洲亚洲色爽免费视频 | 婷婷色在线 | 久污tv| 麻豆国产AV尤物网站尤物 | 九一国产精品 | 91免费视频网 | 麻豆传煤官网入口免费进入 | 精品亚洲一区二区三区在线播放 | 日本毛片免费韩国 | 一区二区三区福利 | 一区二区三区福利 | 免费日产乱码卡一卡2卡三卡四 | 中文字幕首页 | 日韩在线高清 | 精品国产人妻一区二区三区免费 | 欧美制服丝袜在线 | 欧美成人在线网站 | 狠狠干狠狠干狠狠干 | 亚洲 欧美 bt| 久久久久国产午夜 | 美国三级日本三级久久99 | 国精一二二产品无人区免费应用 | 又大又粗韩国色情A片绿色椅子 | 婷婷天堂 | EEUSS鲁片一区二区三区 | 精品国产国产精2020久久日 | 欧美性爱 成人 | 亚洲国产三级在线观看 | 国产精品久久久久久久久ktv | 好舒服好粗好硬免费视频 | 国产精品人妻久久久久A片-百度 | 亚洲视频国产在线精品 | 欧洲成人爽视频在线观看 | 91激情视频 | jizzjizzjizz在线观看 | 免费无码精品黄AV电影 | AV无码国产精品午夜A片麻豆 | 日韩做A爰片久久毛片A片 | 免费网站在线观看人数在哪里看的 | 亚洲成在人色婷婷 | 亚洲欧美日韩中文字幕在线不卡 | 久久a 热6| 无码精品一区二区三区在线A片 | 在线成人福利 | 色欲AV午夜精品AV | 国色天香中文字幕视频 | 色视频线观看在线播放 | 男女一区二区三区免费 | 免费二区| 欧美可以直接看的A片 | 久久国产精品国语对白 | 国产精品久久久久久无码人妻 | 99久久亚洲综合精品网站 | 国产麻豆精选AV | 成年人网站在线观看免费 | 久操精品在线 | 97人人澡人人爽人人模 | 青青草手机版免费视频 | 新婚夜被五个伴郎强H | 日本一卡二卡三卡四卡无卡免 | 日韩插啊免费视频在线观看 |