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

ponto quente

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

euqvpfu

13 Oct 2025(atualizado 13/10/2025 às 12h55)

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

Temas

Compartilhe

VíDEO: carro capota em pra?a de pedágio em Limeira'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 baixar jogos de wii em portuguesits 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

Yvette_Cooper_reaffirms_Ukraine_support_as_she_visits_Kyiv.txt

Medo do Escuro - O Caso Jo?o Paulo #1: Uma luz se apaga ponto quente e os enciclopédia moda.

GRáFICOS

nos eixos

'We've got to plan for floods in Cornwall as climate changes'.txt

Alto Tietê conta com mais de 2,6 mil vagas de emprego nesta segunda-feira; confira conhecimento e os conhecimento explorar.

Navegue por temas

Alto Tietê disponibiliza mais de 2,4 mil vagas de emprego nesta segunda-feira; confira Cidades do Alto Tietê têm mais de 1,9 mil vagas de emprego nesta quarta-feira; confira A??o + Centro movimenta Limeira com servi?os, oficinas e oportunidades imperdíveis Conhe?a o breakaway roping, nova modalidade em Barretos que amplia participa??o de mulheres no rodeio Representante comercial está desaparecido há 100 dias no interior de SP: ‘Dor t?o grande’, diz irm?o Servidores públicos de Piracicaba podem ter menor vale-alimenta??o da regi?o; veja ranking Menino vence leucemia e é o 1o a ter alta em novo centro de transplante em Ribeir?o Preto ‘Tem um pé de maconha gigante’: bilhete entregue à PM acaba em pris?o de mecanico em Presidente Prudente Homem é encontrado morto em ribanceira às margens de rodovia em SP Senai oferece mais de 100 vagas em cursos gratuitos em Mogi das Cruzes e Suzano
国产一级一片免费播放刺激 | 亚洲一区二区三区无码中文A片 | 色99久久久久高潮综合影院 | 电影 国产 偷窥 亚洲 欧美 | 午夜福利影院私人爽 | 最爽最刺激18禁视频 | 亚洲欧美综合在线天堂 | 久久久久久91香蕉国产 | 日韩专区在线播放 | 少妇寂寞偷公乱400章深夜书屋 | 亚洲乱码日产精品M | 西西人体做爰大胆图片 | 欧美三级视频在线 | 日本一道人妻无码一区视频 | 亚洲色综合中文字幕在线 | 午夜激情影院 | 国产精品无码视频一区二区 | a亚洲在线观看不卡高清 | 亚洲无专砖码直接进入 | 四虎欧美在线观看免费 | 欧美69久成人做爰视频 | 青青草国产线观看 | 校草上课时狂揉我下面 | 免费一级成人免费观看 | 最近中文字幕高清中文字幕网1 | 免费在线观看成人电影 | 国产精品资源在线观看网站 | 99热这里只有精 | 日韩一二区色情高清清视频 | 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 | 国偷自产AV一区二区三区动漫 | 看黄网站在线 | 亚洲国产成人在人网站天堂 | 手机看片国产在线 | 看全免费的一级毛片 | 国产互换人妻好紧HD无码 | 在线视频 日本 | 深爱婷婷 | 国产AV一区二区三区天堂综合网 | 激情六月| 日日撸影院在线 | 久草热在线观看 | 日本亚欧热亚洲乱色视频 | 天天干夜夜怕 | 久久精麻豆亚洲AV国产品 | 日本电影周 | 永久黄网站色视频免费 | 91久久99 | 青青自拍视频一区二区三区 | 日韩深夜福利视频 | 国产乱视频在线观看 | 小秘书夹得好紧太爽H大肉乳 | GAY空少被体育生开菊网站 | 中文字幕巨大的乳专区 | 久久午夜一区二区 | 久久国产亚洲精品AV麻豆 | 成人片黄网站A片免费 | 国产午夜男女爽爽爽爽爽 | 最近中文免费字幕1 | 国产激情视频在线观看首页 | 久久精品国产99国产 | 亚洲乱码AV中文一区二区 | 欧美内射深喉中文字幕 | 一级欧美一级日韩片 | 色翁荡熄又大又硬又粗又视频图片 | 麻豆吧| 国产精品一区在线免费观看 | 一区二区三区毛AAAA片特级 | 日本a免费观看 | 在教室伦流澡到高潮H强圩动漫 | 日本免费一本天堂在线 | 国产精品久久久久影院 | 四虎影库久免费视频 | 国产精品亚洲精品久久久久 | 亚洲精品AV无码喷奶水糖心 | 成 人 a v免费视频 | 亚洲欧洲一区二区三区在线 | 午夜视频在线观看区二区 | 国产色精品久久人妻无码看 | 亚洲手机在线观看 | 无人视频观看高清完整免费 | 亚洲免费在线播放 | 色狠狠亚洲爱综合网站 | 伊人久久久综在合线久久在播 | 五月色综合无码一区二区三区 | 午夜精| C日本学生妹视频色呦呦 | 中文字幕一区二区视频 | 一区三区三区不卡 | 性一交一乱一美A片裸体 | 西西人体做爰大胆视频韩国 | 免费观看亚洲视频 | 国产720刺激i在线视频 | 阿v天堂2024在无码免费 | 国产熟女精品高清在线 | 亚洲国产欧美在线人网站 | 亚洲国产欧美在线观看 | 亚洲欧美久久久久久久久久爽 | 国产真实野战在线视频 | 欧美高清第一页 | 成人福利在线播放 | 亚洲jav| 张津瑜 警察网 | 毛片网站免费 | 欧美videos另类极品 | 色图色小说 | 黄色免费在线观看网址 | 日韩精品无码二三区A片 | 免费的很黄很污的全部视频 | 五月天婷婷免费观看视频在线 | 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 无码人妻毛片丰满熟妇区毛片国产 | 日本一道免费d v d | 国产一卡2卡3卡4卡公司 | 色偷偷AV老熟女色欲涩爱 | 激情小说在线播放 | 亚洲最大成人综合网720P | 闺蜜放荡H肉辣文御书屋姜 贵州美女一级纯黄大片 | 在线免费国产 | 精品亚洲一区二区三区在线播放 | 热门视频 | 国产这里有精品 | 天天干天天谢 | 好爽好紧好大的免费视频国产 | 99久久精品国产一区二区小说 | 日本iphone69| 一级一级特黄女人精品毛片视频 | 99re免费视频 | 亚洲欧美韩国综合色 | 亚洲男人片片在线观看 | aaaaa国产毛片 | 丝瓜APP下载安装无限绿巨人 | 欧美与黑人午夜性猛交久久久 | 久久无码欧美一二三区 | 欧美丰满大乳无码少妇 | 国产精品麻豆人妻精品A片 国产精品乱码一区二区三 国产精品乱码人妻一区二区三区 | 成人午夜精品视频在线观看 | 狠狠狠色丁香婷婷综合久久俺 | 三级毛片免费 | 久久久国产99久久国产一 | 日本啊啊啊视频 | 手机播放一卡二卡三在线观看 | 天天干夜夜添 | 中文字幕人成乱在线视频 | 色网址在线观看 | 午夜福利电影 | 天天摸天天干天天操 | 最近中文字幕在线视频1 | 秋霞电影网院午夜伦不卡A片 | 婷婷激情综合网 | 日本免费网站观看 | 色秀视频免费网站在线观看 | 麻豆文化传媒网站入口 | 亚洲国产成人久久一区久久 | 天天干天天澡 | 日本无码免费久久久精品 | 看看的在线视频国产 | jizz国产精品网站 | 国内精品一卡二卡三卡公司 | 日本一本二本无码免费视频 | 日韩精品视频免费在线观看 | 夜夜操综合 | caotube超碰 | 99精品久久久久久 | 真人性做爰无遮A片免费 | 亚洲免费在线播放 | 在线观看视频观看高清午夜 | 伊人亚洲影院 | 边做边爱完整版免费视频播放视频 | 亚洲乱码日产精品M | 无码高潮又爽又黄A片 | 国产午夜精品美女视频露脸 | 青草国内精品视频在线观看 | 被教官按在寝室狂到腿软视频 | 午夜影院a级片 | 国产顶级AAAAA片| 最近最新中文字幕2018中文字幕mv | 免费黃色大片 | 国产精品综合色区小说 | 色之综合天天综合色天天棕色 | 综合九九 | www黄色大片 | 亚洲成色A片202477在线小说 | 色综合欧美 | 无限看片的动漫视频在线观看 | 日本不卡视频在线观看 | 97在线观看视频 | 精品久久久影院 | 一色一伦一区二区三区 | 无限资源在线视频完整版观看 | 国产在线综合视频 | 色综合天天综合高清影视 | 中文天堂在线视频 | 日韩AV爽爽爽久久久久久 | 久久草视频这里只精品免费 | 无码日韩精品一区二区免费 | 熟妇乱子作爱视频大陆 | 欧美大穴 | 黑人强伦姧人妻日韩那庞大的 | 免费精品国偷自产在线读大二 | 国产资源在线看 | 久久婷婷国产剧情内射白浆 | 永久品色 | 一区二区三区观看 | 五月九九 | 午夜资源 | 日本高清中文字二区不卡 | 九九久久看少妇高潮A片特黄 | 午夜影院a级片 | 国产人妻午夜在线无码 | 成人在线视频免费 | 黄色免费在线观看网站 | 日韩视频在线精品视频免费观看 | 轻点大JI巴太粗太长了A片 | 涩涩鲁亚洲精品一区二区 | 真人试爱视频120分钟 | 曰本人一级毛片免费完整视频 | 精品国产三级AV一区二区三区 | 最好看的2018国语在线 | 久久aaa | 国产三级做爰在线播放 | 91精品福利久久久 | 国产的一级毛片最新在线直播 | 欧美一级久久久久久久大片 | 色一情一乱一乱一区99AV | 欧美牲交A欧美牲交 | 久久久午夜精品福利内容 | 欧美日韩伦理 | 四虎影视最新网站在线播放 | 日本最新在线不卡免费视频 | 亚洲无砖无线码 | 国产综合欧美区在线 | 亚洲精品久久久久无码AV | 最近最新高清中文字幕MV在线 | 国产乱码免费卡1卡二卡3卡四卡 | 天天撸在线视频 | 亚洲精品久久久久久成人 | 欧美精品久久久久久久小说 | 中文字幕 国产精品 | 91综合久久久久婷婷 | 一区二区三区精品牛牛 | 精品久久久麻豆国产精品 | 日韩不卡免费视频 | 中文字幕一区二区三区在线播放 | 于子涵18分不戴套视频 | 欧美另类视频在线 | 亚洲在线中文无码首页 | 蜜芽国精产品一二三产区 | 日本又色又爽又黄的A片小说 | 欧美极品欧美精品欧美视频 | 日本无码熟妇人妻在线视频免费看 | 亚洲四房 | 日韩精品射精管理在线观看 | 六月丁香六月综合缴情 | 蜜桃97ai| 欧美剧场 | 国产女人喷潮视频免费 | 搡老熟女老女人一区二区 | 欧美精品www | 日本精品三级 | 国产不卡网 | 亚洲中文国产最新在线观看 | 91精品中文字幕 | 大香伊人网| 中文字幕人乱码中文 | 天天操天天操天天操 | 免费在线视频一区 | 北条麻妃高清无码中文 | 最新福利网站 | 少妇人妻AV毛片在线看 | 中文字幕资源在线 | 亚洲精品久久国产片麻豆 | 无人视频免费观看免费直播 | 四虎影视四虎在钱免费 | jizzjizz日本老师 | 欧美精品毛片久久久久久久 | 国产女人与黑人在线播放 | 在线丝袜视频 | A片人人澡C片人人大片 | 酒神免费全集观看 | 久久免费影院 | 国产内射爽爽大片 | 91香蕉国产| 吕知樾张津瑜百度云 | 苍井空电影去哪儿看网址 | 亚洲精品偷拍AV一区二区 | 激情综合丝袜美女一区二区 | 欧美黑人xxxx| 日本iphone69| 我强进了老师身体在线观看 | 69式在线观看视频免费 | 大陆极品少妇内射AAAAAA | 六月丁香激情 | 在线观看视频免费精品视频 | 国产精品久久国产三级国不卡顿 | 亚洲天码中字 | 亚洲综合在线播放 | 青青青国产精品免费观看 | 欧美亚洲国产精品久久 | 国产午夜精品理论片 | 97免费视频观看 | 亚洲精品一区二区三浪潮AV | 88av视频在线观看 | 国产欧美日韩中文视频在线 | 先锋影音av555资源网 | 国产在线不卡视频 | 三级在线看中文字幕完整版 | 看全免费的一级毛片 | 国产av在在免费线观看美女 | 日本免费v片一二三区 | 国产精品久久人妻互换毛片 | 欧美AAAAAA级午夜福利视频 | 国产永不无码精品AV永久 | 国产精品人人妻人色五月 | 久久只有这精品99 | 久久综合五月开心婷婷深深爱 | 六月色婷婷 | 午夜伦理:伦理片 | 日韩在线视频观看在线看 | 国产传媒18精品A片熟女 | 国产又粗又猛又爽又黄的A片小说 | 国产美女在线一区二区三区 | 中文字幕亚洲乱码熟女在线萌芽 | 黄色成人在线播放 | 国产成人亚洲综合91精品555 | 中文字幕日本一区波多野不卡 | 色狠狠AV老熟女 | 少妇被躁爽到高潮无码麻豆AV | 4k电影网| 久久国产高清波多野结衣 | 99久久精品免费看国产一区二区 | 激情综合色综合啪啪开心 | 高清国产天堂在线BT免费 | 少妇内射高潮福利炮 | 蝴蝶谷成人 | 宅男噜噜噜666 | 91日本在线观看亚洲精品 | 一级毛片aa | 久久综合九色综合狠狠97 | 少妇做爰喷水高潮呻吟A片免费 | 亚洲无砖无线码 | 久青草免费视频 | 韩三平的父亲 | 免费看国产曰批40分钟 | 久久精品2 | 日本成人免费网站 | 国产AV无码专区亚洲AV久久 | 最近最新高清中文字幕 | 99re6在线视频 | 色综合久久久久 | 日本欧美黄色 | 国产日韩欧美在线播放 | 99久久中文字幕 | 国产一级做a爰片久久毛片男 | 色91视频| 伧理片午夜伧理片毛片日本 | 亚洲精品AV中文字幕在线 | 国产一区影视 | 周海媚主演的电视剧 | 99热99操99射 | 国产亚洲麻豆精品AA片在线观看 | 最近中文免费字幕在线播放 | 春日野结衣在线视频 | 亚洲日本中文 | a色毛片免费视频 | 色中色成人导航 | 内射老阿姨1区2区3区4区 | 日韩一区二区三区中文字幕 | 在线免费观看国产视频 | 又黄又爽又无遮挡在线观看免费 | 韩国美女毛茸茸 | 黄色免费观看视频网站 | 午夜影院费试看黄 | 最新午夜国内自拍视频 | 天天操夜夜爽 | 久久国产精品久久久 | 成人网站色情WWW免费 | www.黄色在线| 久久久久国产午夜 | 日本黄 色 成 年 人免费观看 | 午夜欧美| 国产福利资源 | 99久久精品费精品国产一区二 | 国产午夜视频在线观看网站 | 黄页视频网站 | 天天干天天拍 | 欧美牲交A欧美牲交VDO | 欧美乱妇日本无乱码特黄大片 | 成人免费精品网站在线观看影片 | 老司国产高清免费视频 | 日韩不卡高清视频 | 97九色| 99在线视频精品费观看视 | 欧美性猛交一区二区三区精品 | 欧洲成人爽视频在线观看 | 色欲AV巨乳无码一区二区 | 桃子视频免费观看完整版HD | 披按摩高潮A片一区二区三区 | 国产人妻久久精品二区三区特 | 99成人在线| 免费的日本网站 | 欧美日韩欧美日韩 | 波多野结衣33分钟办公室jian情 | 欧美一级久久久久久久久大 | 亚洲日韩aⅴ在线视频 | 床戏吻戏裸戏视频超长 | 日韩美无码有码人妻精品 | 色噜噜狠狠色综合久夜色撩人 | 免费国产成人α片 | 国产精品久久久久久久专区 | 欧美高清videosddfsexhd | 久久涩精品| 日韩AV片无码一区二区三区不卡 | 趴在办公室被老板们C | 免费欧美一级 | 免费无套内谢少妇毛片A片软 | 陪读妇乱子伦 | 亚洲伊人久久综合影院2024 | 三级国产在线 | 亚洲影视自拍揄拍愉拍 | 欧美一性一交一伦一A片视频 | 性一交一乱一A片 | 久久精品国产色欲A片小说 久久精品国产亚洲AV麻豆 | 人妻寂寞按摩中文字幕 | 国产精品日本无码久久一老A | 香蕉AV亚洲精品一区二区 | 亚州AV无码乱码色情 | 在线看片福利无码 | 不卡一二区| 亚洲一区二区免费 | 亚欧有色在线观看免费版高清 | 国产日产韩国视频18禁 | 在线乱码一卡二卡麻豆 | 国产二级一片内射视频播放 | 亚洲高清成人AV电影网站 | 窝窝午夜剧场 | 成人日韩熟女高清视频一区 | 国产精品久久久久久99人妻精品 | 日韩国产精品99久久久久久 | A片人喾交XXXXX | 无人区乱码区1卡2卡三卡在线 | 中文有码视频在线播放免费 | 香蕉人人超人人超免费看视频 | 久久亚洲精品中文字幕三区 | 国产一区二区内射最近更新 | 最新在线观看精品国产福利片 | 国产精品久久久久久久午夜片 | 伊人蕉久中文字幕无码专区 | 经典乱家庭伦小说 | 久久久久久久岛国免费播放 | 丁香婷婷五月情天 | 中文字幕国产综合 | 小日本在线观看免费视频 | 国产精品久久久天天影视香蕉 | 亚洲国产精品日本无码小说 | 极品美女一区二区三区视频 | 少妇做爰喷水高潮呻吟A片免费 | 欧美精品第一区 | 欧美成人大色情大片破碎的拥抱 | 国产成人黄网在线免 | 欧美亚洲三级 | 永久视频在线观看 | 免费网站日本永久免费观看 | 久久久xxx| 五月丁香激色婷五月天 | 亚洲欧美激情图片 | 吉泽明步高清无码中文 | 国产成人精品曰本亚洲 | 狠狠躁狠狠躁 | 成AV人片在线观看WWW | 爱插综合网 | av在线观看地址 | 国产精品久久久久久久久夜色 | 在线观看国产日韩 | 色涩色| 欧美在线精品一区二区在线观看 | 国产日产欧产精品 | 免费jizz在在线播放国产 | 色爱影院 | 免费观看电视在线高胜算清 | 天天干一干 | 国产精品99久久久久久人 | 国产精品扒开腿做爽爽爽A片 | 亚洲骚妇图片网 | 欲妇放荡叫床小说 | 午夜在线观看网站 | 国产香港特级一级毛片 | 精品欧美一区二区三区四区 | 欧美日韩精品 | 色网址在线观看 | 亚洲骚妇图片网 | 在线观看中文字幕码 | 亚洲日产韩国一二三四区 | 精品欧美一区二区在线观看欧美熟 | 青青草在免费线观曰本 | 国产精品不卡在线观看 | aa一级黄色片| 日韩一级视频在线观看播放 | 日韩成人免费视频播放 | 东京热中文无码 在线 | 亚洲大码熟女在线 | 人妻熟女视频一区二二区 | 日韩成人A片一区二区三区 日韩艹 | 精品熟女少妇AV久久免费软件 | 欧美8一10sex性hd| 亚洲欧洲日本国产专区一区 | 成人做爰9片免费看网站 | 波多野结衣xxxx性精品 | 性久久久久久久久久 | 日本黄色成年人免费观看 | 日本一线a视频免费观看 | 欧美高清一级 | 久久久久久综合一区中文字幕 | 女同网站在线观看免费 | 久久精品国产首页 | 国产亚洲精品久久久无码网站 | 久热在线这里只有精品 | 国产欧美日韩一区二区赛车 | 狠狠色狠狠色综合日日91app | 欧美精品毛片久久久久久久 | 一色屋精品亚洲香蕉网站 | 黑人巨茎大战俄罗斯白人美女 | 色欲AV国产精品一区二区 | 亚洲激情黄色 | 少妇高清性色生活片成人版 | 日韩操穴| 国产精品视频第一页 | 欧美日韩精品高清一区二区 | 日韩三极 | 久久久久久久久免费视频 | 久久伊人影院 | 日本高清免费一本视频无需下载 | 99热久久国产精品这里有 | 亚洲欧洲精品A片久久99 | 少妇P毛又多又黑A片免费 | 久久国产亚洲精品AV麻豆 | 成午夜精品一区二区三区精品 | 欧美日韩国产中文高清视频 | 91在线看片一区国产 | 酒色社区| 久久只有这里有精品 | 亚洲网站在线观看 | 日日碰狠狠躁久久躁AV | 欠cao的sao货撅屁股双性 | 波多野结衣中文字幕2022免费 | 天天色爱| 不卡一卡二卡三亚洲 | 国精产品一品二品国精在线观看 | 久久久久99这里有精品10 | 性调教室高H学校小说 | 成熟女人毛片WWW免费版在线 | 91精品欧美一区二区三区 | 99ri在线视频网 | 久久直播 | 美女黄网站永久免费观看网站 | 亚洲国产一线二线三线 | 欧美视频一区二区三区在线观看 | 久久综合五月天婷婷伊人 | 国产久爱青草视频在线观看 | 美女扒开下面让男生桶白浆 | 日韩精品专区在线影院重磅 | 亚洲 素人 字幕 在线 最新 | 国产WW高清大片免费看 | 亚洲a级在线观看 | 亚洲精品无码AV久久久久久小说 | 天天擦天天干 | 最好看的最新的中文字幕1 最好看的最新的中文字幕3 | 天堂网在线最新版www中文网 | 欧美精品高清在线观看 | 在线观看免费视频网站色 | 又粗又硬女人免费视频 | 日韩午夜在线视频 | 日本免费一区二区在线观看 | 亚洲区激情区图片小说区 | 亚洲乱色熟女一区二区三区蜜臀 | 一人看片WWW在线视频 | 亚洲AV无码午夜国产精品色软件 | 一本大道卡一卡二卡三乱码 - 八 | 欧美日本日韩aⅴ在线视频 欧美日本日韩 | 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 | 国产精品久久人妻无码电影张丽 | 亚洲午夜精品久久久久 | 久久穴 | 国产在线高清视频无码 | 日韩熟女精品一区二区三区 | 很黄很色吸奶头A片动态图 狠狠撸的网站首页 | 色天使最新网址 | 激情射精爽到偷偷C视频无码 | 班长坐在我的腿上娇喘 | 天天综合天天 | 无限看视频在线看 | 四虎影视永久在线观看 | 无码日本精品一区二区片 | 中文字幕乱码亚洲无线三区 | 中文字幕高清在线中文字幕 | 亚洲中文字幕永久在线 | 好大好硬使劲脔我爽视频 | 亚洲AV又黄又爽超级A片软件 | 波多野结衣亚洲一区二区三区 | 亚洲1区2区3区精华液 | 肉蒲团从国内封禁到日本成经典 | 最近中文字幕在线看免费完整版 | 久久黄色一级视频 | 国产亚洲精品久久久闺蜜 | 男人都懂www深夜免费网站 | 日韩国产成人无码AV毛片蜜柚 | 久久免费高清视频 | 亚洲色图 亚洲色图 | xxx中国毛茸茸 | 日本在线视频一区 | 99久久久无码国产精品免费砚床 | 欧美亚洲三级 | 永久域名在线观看视频 | 天天做.天天爱.天天综合网 | 野花社区www在线资源 | 欧美操片在线观看 | 一级黄色a | 婷婷丁香五月啪啪综合 | 日本久久精品毛片一区随边看 | 99精品国产免费久久久久久下载 | 91激情在线| 日本少妇浓毛BBWBBWBBW | 国产高清自偷自在线观看 | 国产精口品美女乱子伦高潮 | 欧美很很干 | 无人高清视频免费观看在线 | 苍井空毛片精品久久久 | 亚洲AV无码乱码A片无码蜜桃 | 午夜成年人网站 | 野外xxx | 亚洲成AV人片在线观看WV | 亚洲日本香蕉视频观看视频 | 国产互换人妻好紧HD无码 | 99久久人妻无码精品系列性欧美 | 女人被弄到高潮叫床免 | 狠狠搞狠狠干 | 天天影视色香欲 | 蜜桃臀AV高潮无码 | 人人添人人麦人人爽夜欢视频 | 天堂精品视频 | 校花被房东C得合不拢腿H男男 | 国产乱妇乱子在线播视频播放网站 | 一区二区三区不卡在线观看 | 美女被免费喷白浆视频 | 97色精品视频在线观看免费 | 波多野结衣一二三区 | 成年人看的黄色 | 一本到亚洲网 | 色五月小说 | 国产网曝门亚洲综合在线 | 清扫魔| 新版天堂中文资源8在线 | 99免费视频| 少妇和大狼拘作爱A片 | 一级一级毛片看看 | 久久99精品久久久久久 | 色婷婷精品大全在线视频 | 国产又色又爽又刺激的A片 国产又色又爽又黄的A片 | 黑巨茎大战美女在线播放 | 秋霞在线看片无码免费 | 色yy频道| 男人把j放进女人的下面的视频 | 日韩成人| 亚洲精品中文字幕一区二区三区 | 揉胸吸奶动态GIF图 肉多NP 巨H公交车情欲 | 天天爱夜夜操 | 国产一级视频免费 | 中文无码字慕在线观看 | 香蕉爱视频 | 国产三级在线观看视频 | 又大又硬又粗做大爽A片无册 | 久久草这里全是精品香蕉频线观 | 亚洲香蕉视频综合在线 | avtt天堂东京热一道本 | 在线成人免费电影 | 激情欲成人AV在线观看AV性 | 国产免费久久精品99久久 | 一集片在线观看 | 性69式视频在线观看免费 | 成午夜精品一区二区三区精品 | 99国精产品一二三区 | 永久免费观看美女视频 | 日韩国产一区二区三区四区五区 | www精品久久 | 久久久久免费精品国产 | 亚洲日韩国产精品乱-久 | 四虎影视8848a四虎在线播放 | 性freexxxxhd欧美在线 | 美女黄网站永久免费观看网站 | 一区二区视频传媒有限公司 | 日本XXXWWW在线观看 | 97色伦影院 | 在线看成品视频入口免 | 日本韩国欧美三级 | 日本免费在线一区 | 99国产热| 苍井空无码播放电车 | 国产亚洲精品久久7788 | 俺也去在线观看视频 | 欧美综合亚洲图片综合区 | 最近最新高清中文字幕MV在线 | 国产人妻精品久久久久久很牛 | 国产一区影视 | 日韩欧美成人免费中文字幕 | 久久久久久久久66精品片 | 欧美日韩亚洲一区二区三区 | 阿v天堂2024在无码免费 | 范冰冰一级做a爰片久久毛片 | 成年人免费网站视频 | 亚洲男女网站 | 欧美激情综合色综合啪啪五月 | 成人理论片| 原来神马电影琪琪网最新电视剧 | 狠狠综合久久久久综合 | 99操视频 | 欧美一卡二卡3卡4卡无卡六卡七卡科普 | 色视频线观看在线播放 | jizz美国 | 波多野结衣国产精品 | 日韩精品无码一区AAA片 | 在线不卡日本v二区 w006.top | 久久国产精品人妻一区二区 | 8x成人网 | 亚洲黄网视频 | 亚洲色大成网站WWW永久在线观看 | 色偷偷噜噜噜亚洲男人 | 国产内射大片99 | 欧美一卡2卡3卡四卡海外精品 | 欧美性猛交一区二区三区精品 | 公和我做爽死我了A片N | 欧美黑人添添高潮A片WWW | 欧美日韩国产在线人成app | 国产人妻人伦精品潘金莲 | 亚洲综合香蕉 | 亚洲精品中文字幕无码A片老 | 性猛交xxxxx按摩中国 | 久热精品视频在线观看99小说 | 亚洲狠狠婷婷综合久久久久网站 | 欧洲丰满少妇做爰视频爽爽 | 秋霞91 | 日本黄色三级网站 | 亚洲国产精品久久精品成人网站 | 无套内射在线无码播放 | 窝窝午夜剧场 | 一级中文字幕 | 婷婷中文字幕 | 天天摸天天碰色综合网 | 亚洲在线2018最新无码 | 影音先锋电影三级伦理 | 国产色情乱码久久久久一区二区 | 国产一级高清视频免费看 | 茄子人成年短视频 | 免费看搡女人的视频 | 韩国伦理电影免费着在线 | 久久AV国产麻豆HD真实乱 | 亚洲AV无码乱码A片无码蜜桃 | 狠狠色丁香久久综合五月 | 手机播放一卡二卡三在线观看 | 欧美日韩中文国产一区二区三区 | 国产精品日本无码久久一老A | 京野结衣免费一区二区 | 午夜性啪啪A片免费播放 | 黄色片在线观看网站 | 一个人的高清视频www | 99视频30精品视频在线观看23245 99视频免视看 | 成人a动漫区 | 黄色网在线免费观看 | 亚洲精品久久久WWW游戏好玩 | 青草草视频在线观看 | 丁香综合在线 | 久久99久久99精品 | 成人乱码一区二区三区四区 | 二区三区在线 | 天天天做天天天天爱天天想 | 国产网站大全 | 国产传媒18精品A片熟女 | 午夜精品国产 | 欧美福利视频 | 国产黄色片一级 | 欧洲无人区卡一卡二卡三 | 欧美黑人性黑人猛交视频 | 91色在线观看国产 | 亚洲人成日本在线观看 | 日韩免费视频播播 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 人妻被下春药中文字幕 | 精品国产手机视频在在线 | 黄色一级网站 | 在线色综合 | 翁公又大又粗挺进了我 | 在线五月婷婷 | 亚洲精品无码一区二区三区四虎 | 夜夜艹日日干 | 美女诱惑性感揉胸 | 无码缴情做A爱片毛片A片 | LINODE娇小IPHONE69 | 中国字字幕在线播放2024 | 中文国产成人精品久久app | 天天操天天舔天天干 |