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

hrdsiri

13 Oct 2025(atualizado 13/10/2025 às 02h13)

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

Temas

Compartilhe

Seguran?a viverá guerra de inteligência artificial opondo organiza??es e cibercrime Juntos no Próximo Nível Valor Econ?mico.txt'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

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

'Its strength is best crypto roulette sitesits 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

Saúde depende cada vez mais da inteligência de dados Juntos no Próximo Nível Valor Econ?mico.txt explorar e os conhecimento enciclopédia.

GRáFICOS

nos eixos

Your_pictures_on_the_theme_of_monochrome_.txt

Setlist de Lauryn Hill no The Town: veja músicas de show ao lado de YG e Zion Marley.txt entretenimento e os abrangente conhecimento.

Navegue por temas

Setlist de Lauryn Hill no The Town: veja músicas de show ao lado de YG e Zion Marley.txt Scunthorpe_steelworks_model_appeal_after_30_years_in_storage.txt Seguran?a para Bolívia x Brasil terá contingente refor?ado.txt Setor bancário avan?a com transforma??o tecnológica Espa?o BV Valor Econ?mico.txt Scotlands_prison_numbers_now_higher_than_before_early_release_scheme.txt Serasa oferece hoje desconto de até 99% para endividados Crédito Valor Investe.txt Setor de franquias segue linha ascendente Franquias Valor Econ?mico.txt Sele??o brasileira encerra participa??o nas Eliminatórias com desafio inédito para Ancelotti.txt Selic reduz ritmo de fus?es e aquisi??es na indústria de shoppings Shopping centers Valor Econ?mico.txt Saxenda poderia ajudar crian?§as obesas de at?? 6 anos.txt
性荡视频播放器在线视频播放 | 免费看成人AA片无码视频吃奶 | 男人J放进女人P全黄网站 | 日产精品一二三四区气温 | 日韩三级| 国产一国产一区秋霞在线观看 | 日韩免费观看一级毛片看看 | 中文字幕天堂最新版在线网 | 欧美午夜视频在线观看 | 色偷偷超碰av男人天堂 | 免费看午夜高清性色生活片 | 亚洲AV在线一区二区三区 | 中文字幕日本一区波多野不卡 | 久久宗合色 | 国精产品一品二品国精在线观看 | 视频一区国产第一页 | 1000部做羞羞事禁片免费视频网站 | 强辱丰满人妻HD中文字幕 | 波多野结衣私拍重置版APP | 国产无遮挡又黄又爽免费网站 | 欧美一级网 | 青草网址 | 97国产精东麻豆人妻电影 | 日韩精品视频免费观看 | 校园激情人妻古典武侠 | 亚洲国产精品不卡毛片a在线 | 中文字幕日韩精品有码视频 | 日韩精品视频在线免费观看 | 久久精品99久久香蕉国产色戒 | 精品午夜一区二区三区在线观看 | 国产精品xxx电影 | 人妻少妇久久久久久97人妻 | 亚洲无人区在线观看AV | 千涩论坛 | 精品国产乱码久久久久久小说 | 看全黄大色黄大片老人做 | 国产人妻大保健私密推油按摩无码 | 2024国精产品一二二线精华液 | 九九99re热线精品视频 | 很黄很色60分钟在线观看 | 99re视频 | 青青国产线观观看视频 | 亚洲免费观看在线美女视频 | 一道精品视频一区二区三区男同 | 秋霞电影网理论片韩国在线观看 | 免费毛片网| 在线不卡日本v二区到六区 在线岛国片免费观看无码 在线高清无码欧美久章草 在线观看 有码 制服 中文 | 免费看欧美换爱交换乱理伦片 | 抖音C人版奶片7028 | 国产精品黄色 | 日韩乱码在线观看 | 真人做爰片免费观看播放 | 一区二区乱子伦在线播放 | 精品一区二区三区的国产在线观看 | 欧美大色 | 五月天丁香 | 国产91色在线 | 亚洲 | 草莓.combo2.1深夜释放自己污在线观看 | 午夜精品一区二区三区在线视 | 国产AV一区二区熟女人妻 | 麻豆精品国产精华液好用吗 | JAPANESE性内射 | 777片理伦片在线观看 | 苍井空快播 | 狠狠躁日日躁夜夜躁A片55动漫 | 在线观看国产精品一区 | 国精产品一区一区三区MBA下载 | 韩国精品一区二区三区 | 韩日精品在线 | 成人在线免费电影 | 欲爱免费观看高清完整版 | 韩国三级在线高速影院 | 亚洲乱码国产一区三区 | 婷婷在线综合 | 日本亚洲精品无码区国产电影 | 国产精人妻无码一区麻豆 | 久久久久99这里有精品10 | 一女被两男吃奶添下A片免费网站 | 欧美日本一道道一区二区三 | 日韩精品网 | 日本黄色片一级 | 高清不卡毛片免费观看 | 国产又粗又猛又黄又爽A片 国产又粗又猛又爽又黄A片 | 中文字幕一级 | 成年女人免费视频 | 亚洲国产精华液2024 | 亚洲精品AV一区午夜福利 | 精品国产人妻一区二区三级 | 遇见你的那一天 | 国产午精品午夜福利757视频播放 | 琪琪午夜伦伦A片 | 免费一级欧美片片线观看 | 国产中文字幕在线播放 | 丁香花成人论坛 | 全免费a级毛片免费看视频免 | 久久综合久色欧美综合狠狠 | 亚洲阿v天堂无码z2024 | 级毛片久久久毛片精品毛片 | 午夜DJ影院在线观看免费完整高清 | 欧美亚洲日本一区二区三区浪人 | 国产国语一级a毛片高清视频 | 青青青国产在线手机免费观看 | 国产经典哔哩哔哩 | 久久国产精品久久国产精品 | 最近最好的中文字幕免费 | 成人无码A片一区二区三区免 | 9966久久精品免费看国产 | 国产手机视频在线 | 美女裸身照(无内衣)动态图 | 老板揉搓秘书丰满大乳 | 国产WW高清大片免费看 | 日本成人免费网站 | 又黄又猛又爽大片免费 | 91制片厂制作果冻传媒八夷 | 久久精品国产亚洲麻豆 | 亚洲春黄在线观看 | 亚精品一卡2卡三卡4卡无卡 | 亚洲精品AV无码永久无码 | 国产一国产一级毛片视频在线 | 老头把我添高潮了A片故事 老王轻一点儿好爽在深一点 | 就操视频 | 欧洲最新一卡二卡三卡四卡 | 欧美国产精品久久久乱码 | 夜夜操天天插 | 成人国产一区二区精品小说 | 黄色一级视频网 | 成人在免费观看视频国产 | 国产女人18毛片水真多 | 日本久久综合视频 | 99r热| 国产精品色拉拉免费看 | 看毛片网站| 亚洲AV怡红院AV男人的天堂 | 亚洲一区二区无码影院 | 久久成人18免费网站 | 中文日韩亚洲欧美制服 | 欧美三级在线视频 | 特级毛片片A片AAAAAA | 国产又色又爽又黄A片小说 国产又色又爽又黄刺激在线视频 | 亚洲欧洲一区二区三区在线观看 | 国产成人精品免费视频动漫 | 国产人成激情视频在线观看 | 天堂网2014 | 伦理片免费秋霞e | 伦理片秋霞免费影院 | 国产极品尤物铁牛tv网站 | 日本理论片午午伦夜理片2024 | 91资源在线 | 免费在线观看一区 | 久99久爱精品免费观看视频 | 瑟瑟网 | 高清色视频 | 色偷偷亚洲第一成人综合网址 | 久久99精品视免费看 | 免费夫妻生活片AV | 91精品免费不卡在线观看 | jizz老师| 成人无码T髙潮喷水A片小说 | 亚洲天堂在线观看完整版 | 91精品国产品国语在线不卡 | 日本黄色免费网址 | 无码乱人伦一区二区亚洲一 | 又黄又爽又无遮挡在线观看免费 | 三级网站 | 日本在线观看一级高清片 | 国产免费A片好硬好爽好深小说 | 亚洲AV久久无码精品九九九小说 | 99热99re| 黑巨茎大战俄罗斯白人美女 | AV午夜午夜快憣免费观看 | 欧洲不卡一卡2卡三卡4卡网站 | 国产免费人成在线视频视频 | 国产高清在线露脸一区 | 国产ts人妖系列视频网站 | 欧美又大又粗又湿A片 | 一区二区三区精品牛牛 | 婷婷激情网站 | 黄网站在线观看高清免费 | 国产成+人+综合+欧美 亚洲 | 成人国产AV精品久久久久 | 国产免费A片好硬好爽好深漫画 | 少妇又大又粗又硬啪啪小说 | 玖草在线中文在线2024 | 性视频网址 | 兽交XXXXBBBB视频.专区 | 亚洲欧美日韩国产成人app | 人妻熟妇乱又伦精品视频中文字幕 | 熟女人妻一区二区三区免费看 | 少妇饥渴放荡的高潮喷水 | 国产色情无码网站视频APP | aaa国产| 午夜性色一区二区三区不卡视频 | 精品久久久久久 | 国产精品久久久久久久久免费hd | 真人性做爰AA片少妇 | 亚洲精品国产高清不卡在线 | 国色天香精品一卡二卡三卡四卡 | 国产美女视频免费观看的网站 | 另类重口100页在线播放 | 成人做爰A片三免费视频 | 国产亚洲精品久久久久久久软件 | 嗯啊插坏了射给我 | 精品视频2024在线视频 | 51人人看电影 | 黄视频入口 | 婷婷中文在线 | 午夜视频www | 香蕉网站狼人久久五月亭亭 | 久久久99精品 | 欧美日韩国产一区二区三区伦 | 国产免费A片好硬好爽好深小说 | 午夜高清视频在线观看 | 国产好大好爽久久久久久久 | 国产苐1页影院草草影院 | AV国産精品毛片一区二区小说 | 日本一本二本免费视频在线观看 | 荡公乱妇第1章方情全文免费 | 天天插天天爽 | 亚洲精品无码一区二区三区网雨 | 欲妇荡岳丰满少妇岳A片 | 国产91成人| 日本一区二区三区免费更新不卡 | 日本xxxxx视频免费看 | 国产亚洲精品久久精品69 | 免费在线观看黄网站 | 色视频免费 | 亚洲精品国产一区二区三 | 天堂资源地址在线 | 日韩精品永久免费播放平台 | 午夜高清在线 | 日本不卡视频免费的 | 五岳影视院线 | 欧美又大又硬又长又粗A片 欧美又黄又大又爽A片 | 闺蜜放荡H肉辣文御书屋姜 贵州美女一级纯黄大片 | 久久99精品久久久久久青青日本 | 日韩欧美视频一区二区三区 | 中国一级毛片视频免费看 | 欧洲精品不卡1卡2卡三卡四卡 | 精品人妻伦一二三区久久AAA片 | 在线精品播放 | 国产成人爱片免费观看视频 | 制服师生av在线 | 精品无码久久久久久久久 | 大香网伊人久久综合网2020 | 综合自拍亚洲综合图区 | 日日噜噜夜夜狠狠tv视频免费 | 国产一区二区三区乱码在线观看 | 久久99AV无色码人妻蜜 | 国产又爽又大又黄A片另类软件 | 黄A无码片内射无码视频 | 四虎最新在线永久免费 | 久久九九久精品国产 | 亚洲区激情区图片小说区 | 欧美视频在线观看视频 | 免费看成人AA片无码视频羞羞网 | 日本激情网 | 天天天天天天干 | 丁香婷婷色综合 | 久久免费手机视频 | 国产女人与黑人在线播放 | 久热国产在线视频 | AV日日碰狠狠躁久久躁 | 片成年免费观看网站黄 | 最近免费中文字幕大全高清大全 | 永久免费无码AV国产网站 | 亚洲欧美日本久久综合网站 | 青青草免费国产线观720 | 中文字幕无码一区二区免费 | 久久狠狠第一麻豆婷婷天天 | 亚洲激情区 | 日韩在线电影大全免费观看 | 97在线精品视频 | 亚洲最大成人网色 | 午夜视频在线观看免费观看在线观看 | 日韩欧美伦理 | 扣扣影视在线 | 欧美精品hdvideosex4k | 公交车被多男摁住灌浓精芽子 | 射久久久 | 久久国产欧美日韩精品免费 | 九九免费视频 | 视频黄色在线 | 在线播放免费看高清大片 | 2020年日本高清一卡二卡三卡四卡 | 一级女人毛片人一女人 | 无码又黄又爽又舒服的A片 无人区AV在线观看 无人区乱码区1卡2卡三卡在线 | 久久精品国产一区二区三区四区 | 日韩第二页| 91精品导航在线网址 | 好男人好资源www社区 | 国产精品久久久久a影院 | 免费电影在线看 | 影音先锋资源av男人站 | 亚洲 日韩 中文字幕区 | 欧美与黑人午夜性猛交久久久 | 篠崎かんな黑人解禁粗暴 | 麻豆最新国产剧情AV原创免费 | 国产亚洲精品久久久999无毒 | 抖抈app免费 | 在线亚洲精品国产一区麻豆 | 国产又爽又黄无码无遮挡在线观看 | 囯产愉拍亚洲精品一区 | 一个人看的www播放高清 | 大尺度哺乳福利视频 | 狼人久久尹人香蕉尹人 | 国产日本一线在线观看免费 | 高清电视剧 ok影视 高清成人影院 | 国产精品扒开腿做爽爽爽A片 | 污污的小说网站免费阅读 | 亚洲精品成人AA片在线播 | 日本波多野结衣字幕久久 | 九九九国产 | 宅男66在线网站 | 精品国产乱码久久久人妻 | 亚洲欧洲日产国码久在线 | 久久a级片| 午夜少妇在线观看视频 | 亚洲 欧美 国产 动漫 综合 | 兽交XXXXBBBB视频. | 青青伊人91久久福利精品 | 国产AV国片精品一区二区 | 久久精品99久久香蕉国产色戒 | 国产另类ts人妖一区二区 | 欧美成网站| 亚洲AV国产成人精品区三上悠亚 | 没有废话全色肉的黄文 | 久久噜噜噜 | 亚洲色熟偷拍视频在线 | 波多野结衣一区二区三区 | 亚洲精品久久99蜜芽尤物TV | 污污的小说网站免费阅读 | 日韩人妻无码精品A片免费不卡 | 欧美午夜性 | 五月天婷婷免费观看视频在线 | 天天影视网网色色欲 | 99在线小视频 | 激情6月丁香婷婷色综合 | 色中色论坛网址 | 婷婷五月色综合人妻 | 欧美日韩一区视频 | 日本香港三级和澳门三级 | 曰曰摸天天摸人人看久久久 | 中字幕视频在线永久在线观看免费 | 忘忧草日本社区在线播放 | 日本三级2019在线观看免费 | 国产高中生三级视频 | 真人做爰直播 试看 | 久久视热在线视频精品 | 亚洲欧洲自拍拍偷 | 91制片厂制作果冻大象传媒 | 久久久精品国产 | 全黄H全肉短篇禁乱NP慕浅浅 | 四四色播| 色七影院| 爱综合网 | 精品福利app导航 | 亚州老熟女A片AV色欲小说 | 黑人巨茎大战俄罗斯白人美女 | 黄色片在线观看网站 | 亚洲日本三级 | 国产精品一区二区免费 | 涩涩涩爱撸 | 诱含整夜不拔h1v1 | 国产美女69视频免费观看 | 欧美中文字幕一区二区三区 | 五月天 丁香 | 午夜精品久久久久久久久 | 无码内射成人免费喷射 | 高清在线一区二区 | 中文国产成人精品久久久 | 欧美色成人tv在线播放 | 成人H动漫AV无码无遮挡A片 | 国产精品无码人妻99999 | 日本在线观看不卡 | 99久久精品久久久久久清纯 | 国产精品国产三级国产an | 91秒拍国产福利一区 | 熟女肥臀白浆大屁股一区二区 | 久久99精品久久久久久h | 人人添人人麦人人爽夜欢视频 | 亚洲暴爽AV天天爽日日碰 | 日本真人边吃奶边做爽免费视频 | 午夜福利电影网站鲁片大全 | 国内精品偷拍在线观看 | 清纯校花被调教高H | 伦理片97影视网 | 亚洲免费一级视频 | 成人5252色| wwwav视频| 五级黄色片 | 风流少妇A片一区二区蜜桃 风流少妇与黑人做爰 | 美国一级毛片免费视频观看 | 伦理电影中文字幕韩国在线观看 | 亚洲视频一区在线观看 | 欧美又黄又大又爽A片 | 色www永久免费 | 大陆老太交xxxxxhd在线 | 精品玖玖 | 小莹的性荡生活38章 | 免费欧洲毛片a级视频 | 最好看的最新的中文字幕 | 韩日a级片| 我就是要当着他的面做你 | 伦理片飘花免费影院 | 国产极品JK白丝玉足喷白浆 | 日本三级欧美三级 | 99在线免费观看视频 | 欧美一级影院 | 欲妇荡岳丰满少妇岳A片 | 真实国内老女人的露脸视频 | 日产精品卡二卡三卡四卡乱码视频 | 免费蜜芽官网网址永不失联 | 香蕉影院在线播放伊人 | 欧美一区二区视频在线观看 | 中国亚州女人69内射少妇 | 国产乱码在线观看 | 成人性生交A片免费观看 | 2024影院秋霞成人午夜电影免费 | 日本 一 级 视频 | 男人晚上适合偷偷看的污污 | 九九九免费视频 | 天海翼一区二区三区四区 | 欧美骆驼趾xxxx | 在线不欧美| chinafree×性护士vidos | 久久天天躁狠狠躁夜夜avapp | 亚洲第一区二区快射影院 | 天天干天天操天天做 | 丁香婷婷综合网 | 国产精品扒开腿做爽爽爽日本无码 | 性freexxxxhd欧美在线 | 欧美一级精品高清在线观看 | 婷婷色5月| 成人a动漫区 | 黑料不打烊668SU痞幼视频 | 云边有个小卖部高清 | 最好看的免费观看高清电影 | 欧美性生恔XXXXXDDDD | 亚洲老熟女AV一区二区在线播放 | 歪歪女主播不雅视频 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 人妻洗澡被强伦姧完整国产 | 黄色网址免费观看视频 | 国产三级在线观看免费 | www黄色大片| 欧美97久久人人模人人爽人人喊 | 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 | 日韩少妇成熟A片无码专区 日韩视频www色情 | 国产淫语对白在线 | 国产成人福利 | 老师的丰满大乳奶水在线观看 | 日韩一区二区三区在线播放 | 成人特级毛片 | 免费无码又爽又刺激高潮视频日本 | 嫩草AV久久伊人妇女超级A | 波多野结衣在线资源 | 把腿张开JI巴CAO死你H | 修理工厨房侵犯人妻系列国产 | 人与猪猪 | 久久神马影院 | 免费精品美女久久久久久久久 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 5278欧美一区二区三区 | 澳门在线高清一级毛片 | 九九色影院 | 中日韩AV亚洲高潮无码 | 视频一区二区欧美日韩在线 | 成av人电影在线观看 | chinese国产videos国语 | 看黄网站在线 | 午夜色大片在线观看 | 爽吗你个小浪货叫大声点 | huluwa官网在线入口testflight | 在线色网址 | 久久九九有精品国产56 | 品色堂 pin6 品色免费堂 | 伊人情人综合网 | 欧美综合区自拍亚洲综合图 | 午夜在线| 国产在线不卡视频 | 曰本道久久综合久久爱 | 免费视频网站在线观看黄 | 亚洲你我色 | 久久桃花网 | 亚洲中文有码字幕日本 | 99精品视频免费观看 | 日日噜噜夜夜躁躁狠狠 | 高清国产精品久久 | 国产一区二区无码蜜芽精品 | 精品人妻无码一区二区三区牛牛 | 在线天堂中文在线资源网 | 色五月小说 | 女人在厨房被添高潮全过程A片 | 欧美日韩一区不卡在线观看 | 亚洲欧洲日本天天堂在线观看 | 国产视频a | 2022天天干 | 五月色婷婷丁香无码三级 | 在线看片成人免费视频 | 娇妻系列交换27部多P小 | 久久久久久网址 | 高清毛片AAAAAAAAA片 | 扒开粉嫩小泬把舌头伸进去添视频 | 国产午夜精品久久理论片小说 | 日本亚洲一区二区三区 | 亚洲精品一卡2卡三卡4卡5卡 | 天天干天天拍天天操 | a天堂v| 亚洲国产专区校园欧美 | 成人深夜福利 | 最近高清无吗免费看 | 桃色AV久久无码线观看 | 国产精品色无码AV在线观看 | 美国一级毛片免费看 | 国产欧美日韩视频免费 | 色偷偷一区二区三区视频 | 日韩AV片无码一区二区三区不卡 | 午夜在线网址 | 国产三级精品久久三级国专区 | 精品精拍国产日韩26u | 成人片黄网站A片免费 | 国产一级一片免费播放i | 亚洲国产精品久久久久久网站 | 伊人久久丁香色婷婷啪啪 | 男人的天堂av社区在线 | 日韩精品人妻AV一区二区三区 | 玖玖在线播放 | 亚洲 日本 中文字幕 制服 | 啪啪五月| 91欧美精品 | 五月天婷婷网站 | 4480yy午夜私人影院 | 欧美黄色大片免费观看 | 厨房少妇人妻好深太紧了 | 亚洲第9页 | 波多野结衣aⅴ在线 | 日韩卡1卡2 卡三卡2021老狼 | 好骚综合在线 | 精品国产互换人妻麻豆 | 欧美日韩福利视频 | 国产亚洲成AV人片在线观黄桃 | 免费看成人羞羞视频网站在线看 | 亚洲成AV人片一区二区三区 | 一级在线视频 | 2024高清国产一区二区三区 | 伊人成综合网伊人222 | 最近中文国语字幕在线播放 | 国产精品一区成人精品 | 91久久香蕉国产线看观看软件 | 亚洲精品AV一二三区无码 | 国语92电影网午夜福利 | 三级韩国日本三级在线 | 九九热九九热 | 亚洲香蕉视频综合在线 | 天天射天天干天天插 | 欧美最猛黑人猛男无码视频 | 国产丰满人妻一区二区电影 | 91在线看视频 | 国产精品亚洲w码日韩中文 国产精品午夜自在在线精品 | 国产欧美二区综合 | 九九久久看少妇高潮A片特黄 | 色婷婷亚洲婷婷7月 | 三级理论中文字幕在线播放 | 日本A片中文字幕精华液 | 亚洲性夜色噜噜噜在线观看不卡 | 国产成人亚洲精品91专区手机 | www.91久久| 久久精品一卡二卡三卡四卡视频版 | 亚欧洲精品在线视频免费观看 | 什么网站可以看毛片 | 美国黄色一级毛片 | 在线观看日本一区 | 中央工作组赴宜春督导锂矿开采 | 三级国产精品 | 国产真实乱人偷精品人妻图 | 黄页网站在线观看 | 黄色在线播放网址 | 在线天堂种子 | 国产免费无码又爽又刺激A片动漫 | 亚洲区自拍 | 品色堂永久 | 国产亚洲精品久久久久久小说 | 日本少妇做爰片视频 | 欧美日产成人高清视频 | 一色网 | 久99久精品免费视频热77 | 久久涩涩| 国产精品网站在线观看免费传媒 | 一级毛片完整版免费播放一区 | 思思久久好好热精品国产 | 中文字幕人成乱在线视频 | 狠狠做五月深深爱婷婷 | 2021国产精品久久 | 老外的一级大黄色毛片 | 精品国产午夜福利在线观看 | 日日干日日草 | 日本三级吃奶头添泬无码 | 99爱在线精品视频免费观看9 | 免费一级特黄特色大片在线观看 | 国产精品黄色 | 欧美一区二区三区久久综合 | 青青涩射射 | 日本爽爽爽爽爽爽在线观看免 | 欧美性xxxx另类 | 美女裸体黄网站18禁免费看影站 | 国产手机在线亚洲精品观看 | 国产成人综合在线观看网站 | 99re视频在线观看 | 免费黄色毛片视频 | 无码八A片人妻少妇久久 | 又硬又粗进去好爽A片 | 国产crm系统91| 一区二区三区国模大胆 | 久久综合九色综合精品 | 不得不看的极品av作品 | 免费国产成人α片 | 久久精品99视频 | 中文字幕国产精品 | 无套内射在线无码播放 | 亚州一级毛片 | 国产AV精国产传媒 | 亚洲自偷自拍另类图片小说 | 中文字幕在线观看网站 | 国产天天射 | 亚洲v天堂v手机在线 | 天天天做天天天天爱天天想 | 午夜网站在线观看免费网址免费 | 国产日韩在线 | 最近最好的2019中文字幕 | 黄色一级毛片 | 国产玖玖在线观看 | 永久黄网站色视频免费 | 久久99国产精品久久99小说 | 桃花色综合影院 | 夭天色综合 | 国产在线观看精品一区二区三区91 | 成人免费va视频 | 在线看黄页| 免费精品精品国产欧美在线 | 乱码视频午夜在线观看 | 少妇又色又爽又紧的A片 | 国精一区二区AV在线观看网站 | 扬名立万电影在线观看 | 波多野结衣一区二区三区在线观看 | a级片日韩 | avtt天堂东京热一道本 | h网站在线免费观看 | 丰肥美熟欲妇乱小说 | www狠狠干 | ewp绞死vk失禁编 | 午夜成人在线视频 | 扣扣影视在线 | 不得不看的极品av作品 | 波多在线播放 | 午夜视频hd | 国产大片内射1区2区 | 人妻换人妻AA视频 | 日本无码中文精品a8198v | 一个人在线视频免费观看www | 国产三级在线 | 国产爱啪啪 | 最新国产中文字幕 | 亚洲国产香蕉视频欧美 | 999精品国产人妻无码系列久久 | 综合涩 | 动漫精品视频一区二区三区 | 国产人妻午夜无码AV天堂 | 欧美做爰猛烈动高潮视频 | 午夜成人影视 | 六十路の高齢熟女が中文在线播放 | 草草免费观看视频在线 | 疯狂少妇2做爰完整版播放 疯狂少妇2做爰中文字幕 | 做A爰片久久毛片A片的价格 | 无码激情做A爰片毛片A片蜜桃 | 蜜月a 免费一区二区三区 | 99re视频在线观看 | 真人做A免费观看 | 亚洲国产精品成人无码A片软件 | 拍拍拍无档又黄又爽视频 | 家庭教师波多野结衣在线观看 | 麻豆精品2021最新 | 在线观看免费国产成人软件 | 国产熟妇搡BBBB搡BB七区 | 国产超碰人人爱被IOS解锁 | 最近免费的中文字幕一 | 澡人人澡人澡人人澡天天 | 波多野结衣在线家庭教师 | 欧美一级v片| 操 美女视频 免费网站 | 2020国产微拍精品一区二区 | 99在线观看精品视频 | 色偷偷网| 好爽快点我受不了了国产 | jizz老师| 最好看的最新的中文字幕1 最好看的最新的中文字幕3 | 日韩一级欧美一级 | 中文字幕在线观看你懂的 | XX性欧美肥妇精品久久久久久 | 国产看片网站 | 欧美影视一区 | 精品无码国产一区二区日本 | 最近中文字幕高清免费大全1 | 中文字幕精品在线 | 日韩三级在线免费观看 | 国产精品熟女人妻 | 天天天天夜夜夜夜爱爱爱爱 | 亚洲午夜久久久久影院 | 九九九99品牌的特色产品 | 天天做天天干 | 小黄文污到湿透嗯啊滴水纯肉 | 张馨予疯狂床照视频 | 亚洲乱码日产精品BD在线下载 | 青青青国产依人在线 | 清纯校花被调教高H | 欧美日韩在线视频观看 | 女人毛多水多高潮A片 | 国产免费网站看v片元遮挡 国产免费区 | 欧美另类在线视频 | 草草CCYY免费看片线路 | 深爱激情五月婷婷 | 国产亚洲欧美在线 | 邪恶肉肉全彩色无遮盖教师 | 欧美精品黄页在线观看大全 | 小泽玛利亚 bt | 苍井空大尺寸视频大全 | 有人有片资源吗在线观看WWW视频 | 天天干天天干 | 秋霞伊人网 | 撸一撸网| 久久久视频2019 | 亚洲 欧美 国产 图片 | 97亚洲狠狠色综合久久久久 | 日本午夜三级 | 九九精品视频在线观看九九 | 感觉里面痒快舔想做 | 人人人免费人人专区人人 | 五月深爱网 | 亚洲另类激情专区小说 | 青青热久免费精品视频精品 | 欧美日韩亚洲综合2019 | 果冻传媒 天美 麻豆 | 国产成人久久久精品毛片 | 日韩一卡二卡三卡四卡免费观在线 | www.四色 | 波多野结衣视频免费观看 | 视频二区日韩 | 九九精品免视频国产成人 | 欧美精品第1页在线播放 | 欧美一区二区激情视频 | 一级毛片人与动免费观看 | 中文黄色片| 欧美va天堂 | 黑人巨茎大战白人美女 | 少妇寂寞找男按摩师性M | 国产白丝精品爽爽久久久久久蜜臀 | 四虎影视网 | 成人国产色情无码永久免费软件 | 清纯校花挨脔日常H惩罚视频 | 日本v视频| 国产高清第一页 | 伊人久久大香线蕉观看 | 老师没戴套子C了我一天视频 | 国精产品W灬源码1688网站 | 国产午夜永久福利视频在线观看 | 久久久无码精品亚洲A片软件 | 欧美九九 | 伊人久久99 | 99久久久无码国产精品AAA | 日韩三级中文字幕 | 亚洲一区欧美 | 亚洲色欲AV无码乱码国产精品 | 五月天婷婷缴情五月免费观看 | 手机看片欧美 | 8050午夜一级全黄毛片 | 亚洲二区在线视频 | 三A级做爰片免费观看春光乍泄 | 男女边摸边吃奶边做爰动漫 | 麻豆国产AV尤物网站尤物 | 色综合视频一区二区 | 精品AAAA巨乳| 精品一区二区三区无码AV久久 | 久久夜色噜噜噜亚洲AV0000 | 小污女导航福利入口 | 99中文字幕在线 | 人妻熟女 视频二区 视频一区 | 麻豆传煤网站免费入口ios | 夜色成人网| 女18一级大黄毛片免费女人 | 五月婷婷久久草 | 东京热 影音 | 在线视频精品免费 | 2024中文字幕乱码免费 | 国产麻豆精品一区 | 国产成人免费福利网站 | 中文字幕AV亚洲精品影视 | 婷婷久久综合九色综合伊人色 | 爱搞逼综合网 | 成人A片免费看男人社区 | 人妻熟女 视频二区 视频一区 |