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

wdoqa

10 Oct 2025(atualizado 10/10/2025 às 20h16)

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

Temas

Compartilhe

última Batalha de Pitch do Menos30 Fest dá R$ 25 mil a startup que busca facilitar denúncias de assédio e violência'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 4520 resultadoits 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

rd_re_-_Scotland_-_BBC_Bitesize.txt

Le?es vivendo nas cidades: duas histórias do Acervo O GLOBO explorar e os enciclopédia foco.

GRáFICOS

nos eixos

_Israel-Iran_conflict_unleashes_wave_of_AI_disinformation.txt

Zélia Duncan no GLOBO: leia uma cr?nica da cantora e compositora conhecimento e os abrangente moda.

Navegue por temas

Confira mais de 80 cursos gratuitos para consumir até 28 de novembro Menos30 Fest: oficinas ensinaram estratégias para atrair a aten??o e fazer a diferen?a no mercado ‘N?o é muito verdade que a nossa economia é fechada’, diz Rubens Ricupero Negros representam apenas 16% dos professores universitários é hora de recalcular a rota; veja o vídeo manifesto da nona edi??o do Menos30 Fest Cacá Diegues no GLOBO: leia uma cr?nica do cineasta e escritor Gest?o de pessoas: veja perfil dos cursos, o que faz e remunera??o Revolu??o digital deixa cinco profiss?es à beira da extin??o, diz estudo Jo?o Ubaldo Ribeiro no GLOBO: leia uma cr?nica do escritor Fies 2020 encerra nesta sexta inscri??es para a sele??o do 1o semestre
高强度辣爽文 全是肉NP | 国产一国产一级毛片视频在线 | 99久久国产综合精品网成人影院 | 日本少妇浓毛BBWBBWBBW | 少妇A片出轨人妻偷人视频 少妇高清性色生活片成人版 | 强奷漂亮的女邻居完整版 | 日本污污网站 | 免费做A爰片久久毛片A片下载 | HEZYO加勒比 一本高手机在线 | 日韩成人免费在线 | 中文字幕在线播放视频 | 亚洲一区二区三区四区五区六 | 在线播放91撕破艺校舞蹈系 | 国产老熟女伦老熟女熟妇图片 | 韩国伦理片国语伦理片 | 97精品国产91久久久久久 | 99久久久无码国产精品免费人妻 | 99精品成人无码A片观看金桔 | 亚洲AV无码久久精品色欲 | 欧美做人爱A毛片 | 少年巴比伦免费完整在线观看 | 久久99国产精品成人 | 无套内谢少妇毛片A片AV | 狠狠五月色婷婷蜜桃777 | 国产人妻人伦精品免费看果冻传媒 | 欧美一区二区在线免费观看 | 伊人婷婷综合缴情亚洲五月 | 麻豆一区二区在我观看 | 无修无遮h韩漫视频网站 | 亚洲色婷婷久久精品AV蜜桃久久 | 亚洲精品又粗又大又爽A片 亚洲精品一区无码A片 | 欧美性生交大片免费看A片免费 | 91精品中文字幕 | 精品人妻无码一区二区三区葡京 | 亚洲综合无码一区二区 | 黑人狂躁日本少妇在线观 | 在线一区二区三区 | 中文字幕人妻熟女人妻洋洋 | 国产精品网站在线观看免费传媒 | 91成人午夜精品福利院在线观看 | 在线视频一区二区三区四区 | 韩国视频一区 | 91在线视频在线观看 | 麻豆高潮AV久久久久久久 | 久久手机娱乐网 | 日日摸天天添天天添无码蜜臀 | 国产在线视频h | 久久成人永久免费播放 | 黑人外教啪啪中国女留学生 | 狠狠色丁香久久婷婷综合图片 | 听党话跟党走始终是共青团坚守的 | 黄色三级网址 | 老师你下面太紧进不去动态图 | 娇喘呻吟欲仙欲死的娇妻 | 日本翁熄系列乱在线视频 | 在线观看视频观看高清午夜 | 国产a级特黄的片子视频免费 | 国产精品久久久久福利网站 | 少妇P毛又多又黑A片免费 | 老司机午夜免费福利 | 午夜福利电影网站鲁片大全 | 欲妇荡岳丰满少妇A片 | 亚洲精品无码高潮喷水A片在线 | 一级黄色欧美 | 久久国产高清一区二区三区 | 小莹的性荡生活45章最新章节 | 麻豆文化传媒精品一区观看 | 亚洲成成品源码中国有限公司 | 亚洲A片成人无码久久精品色欲 | 无图 亚洲 欧美 偷拍 | 一本色道久久爱88AV俺也去 | 忘忧草日本社区在线播放 | 啪一啪射一射插一插 | 国产精品av免费观看 | 麻豆乱码1区2区新区 | 日韩不卡高清 | 黄色片免费网站 | 亚洲乱码国产乱码精华 | 快播av种子| 亚洲天天综合 | 久久精品国产99国产精品澳门 | 窝窝视频网看免费 | 成年视频xxxxx在线网站 | 天天综合天天综合色在线 | 国产一区二区影院大全 | 日韩在线一区二区三区 | 黄色资源在线观看 | 在线免费看黄网站 | 久久福利国产 | 久热网| 亚洲精品无码一二区A片 | 国产GV无码A片在线观看 | 一级片免费视频 | 亚洲香蕉在线视频 | 亚洲中文字幕乱码熟女在线 | 2020好看的中文乱码字幕 | 亚洲福利影视 | 性色xxx视频| 91色在线观看 | 91精品综合久久久久久五月天 | 香港日本韩国三级网站 | 亚洲成a人v欧美综合天堂下载 | 粗大挺进朋友人妻身体里电影 | 色情污污污WWW网站下载 | 国产一级特黄aa毛片 | 春色校园亚洲综合小说 | 欧美高清性xxxxxxx | 国产又粗又黄又爽的A片精华 | 久久93精品国产91久久综合 | 男女做爰全A片免费的看 | 亚洲精品免费视频 | 老湿机费x一分钟影院体验区 | 深夜激情网 | 色点的小说| 激情一区二区三区成人 | 色翁荡息肉欲系列小说 | 日韩免费视频播播 | 日本成本人片无码免费网站 | 极品少妇XXXX精品少妇偷拍 | 丰满的日本护士xxx 疯狂撞击美妇雪白的大肉臀 | 亚洲AV无码成人一区二区三区 | 狠狠撸的网站首页 | 久久免费视频3 | 国产真实乱人偷精品人妻69 | 日本精品人妻无码202477 | 国产玖玖在线 | 日韩精品视频免费 | 久久久久久久99久久久毒国产 | 国产精人妻无码一区麻豆 | 牛牛精品专区在线 | 香草乱码一二三四区别 | 亚洲免费网站观看视频 | 国色天香一卡二卡三卡四卡视频 | 日韩视频在线精品视频免费观看 | 成人无码www免费视频欧美 | 伊人成综合网伊人222 | 抖抈app免费 | 成电影人免费网站 | 中文字幕精品一区二区三区在线 | 亚洲第一色网 | 国产熟妇无码A片AAA毛片视频 | 精品无码国产AV一区二区三区 | 亚洲国产精品日韩一线满 | 人人电影 | 无码人妻精品国产婷婷 | 国产成人无码免费看视频软件 | 久久国产精品系列 | 最近免费观看高清日本大全 | 亚洲精品中文字幕乱码影院 | 久久精品亚洲欧美日韩久久 | 欧美同性精品xxxx | 成长电视剧全集 | 亚洲AV狠狠爱一区二区三区 | 在线中文字幕一区 | 国产精品久久久久久亚洲毛片 | 91最新91精品91蝌蚪 | 三要四妾国语免费观看 | 波多野结衣视频免费观看 | 日本一区不卡在线 | 成人老司机深夜福利久久 | 亚洲欧美成人综合久久久 | 窝窝午夜色视频国产精品东北 | 黑人大战亚裔美女 | 人人做人人爽人人爱秋霞影视 | 成人福利院 | 免费又黄又爽A片免费看漫画 | 我与公的情乱妻孝 | 最近韩国日本免费观看高清 | 精品国产三级在线观看 | 滋润岳的性饥渴花落伴官途 | 黄色三级毛片 | 扣扣影视在线 | 99在线免费视频 | 国产精品爽爽久久久久久 | 亚洲欧美日本综合一区二区三区 | 欧美国产综合日韩一区二区 | 蜜臀亚洲AV永久无码精品老司机 | 久久免费国产 | 激情综合婷婷 | 亚洲天堂一区二区三区 | 91精品福利一区二区三区野战 | 久久国产精品99久久久久久老狼 | 激情丁香婷婷 | 色猫咪AV在线网址 | 国产精品99 | 伦理高清百度影音 | 国产又色又爽又黄的网站在线一级 | 韩日a级片 | 男女午夜精华液 | 日本爆乳无码一区二区漫画 | 欧美日本亚洲国产一区二区 | 国产一级黄色网 | 91成人啪国产啪永久地址 | 偷拍自偷 亚洲 欧美20P | 免费超级淫片日本高清视频 | 麻豆无人区乱码 | 四房开心色播 | 九九精品免费观看在线 | 亚洲性久久久久久久久久 | 波多野结衣三级在线观看 | 欧美五月激情 | 亚洲精品乱码一区二区三区 | 有人有片资源吗在线观看WWW视频 | 欧美日韩一卡2卡三卡4卡新区 | 亚洲 综合 欧美在线 热 | 波多野结衣中文字幕在线视频 | 日韩一道本 | 激情五月综合婷婷 | 国产人成精品综合欧美成人 | 真人一级一级特黄高清毛片 | 国产三级精品三级在专区中文 | 野花社区www在线资源 | 青草视频免费观看在线观看 | 国产精品人妻无码久久网站 | 粗好大用力好深快点漫画 | 亚洲一区二区三区在线播放 | 亚洲高清免费在线观看 | 天堂网在线观看 | 国产成a人亚洲精v品久久网 | 四虎影视在线影院在线观看 | 大陆精品福利网址导航在线 | 可以在线看黄的网站 | 丁香婷婷影院 | 青青青国产在线手机免费观看 | 国产成人免费高清视频 | 什么网站可以看毛片 | 色欲久久综合亚洲精品蜜桃 | 免费毛片试看 | 久热久 | 亚洲性无码AV久久成人 | 一本色道无码道在线 | 最近免费中文字幕大全高清MV | 日韩喷潮| 九九视频在线 | 厨房玩弄丰腴尤物美妇 | 亚洲人成在线播放无码 | 久久极品 | 呻吟国产AV久久一区二区 | 91精品国产9l久久久久 | 2019中文字幕在线观看 | 你好种地少年免费观看完整版 | 精品国产自在现线看久久 | 91激情| 黄网久久 | 久久艹影院 | 思思久久好好热精品国产 | 日本免费一区二区三区视频 | 玩弄放荡人妇系列短篇下载 | 日日摸夜夜添夜夜爽出水 | 国产欧美日韩一区二区三区在线 | 国产传媒18精品免费1区 | 国产精品成熟老女人视频 | 亚洲成熟女人毛毛耸耸多 | 国产精品A久久久久久久久 国产精品AV国片偷人妻麻豆 | 在暴雪时分电视剧免费观看吴磊 | 99久久无码一区人妻A片蜜桃 | 激情aa视频试看免费 | 日韩做A爰片久久毛片A片毛茸茸 | 亚洲欧洲日本国产专区一区 | 国产一级片网址 | 亚洲 校园 欧美 国产 另类 | 成人影院m免费 | 岳的下面好紧好爽视频 | 日本高清免费一本视频在线观看 | 在线高清国语成人网站 | 综合亚洲桃色第一影院 | 欧美亚洲国产一区 | 日韩精品一区二区三区国语自制 | 97在线人人 | 国产人澡人澡澡澡人碰视频 | 2020国产成人精品视频人 | 色老头成人免费综合视频 | 激情文学小说区另类小说同性 | 人人澡 人人澡 人人看欧美 | 国产激情久久久久久影院 | 色婷婷激情 | 欧美AAAAAA级午夜福利视频 | 五月天亚洲图片婷婷 | 四虎最新在线永久免费 | 国产一卡2卡3卡4卡无卡免费视频 | 97一本大道波多野吉衣 | 免费黄色一级 | 真人性做爰无遮A片免费 | 影音先锋亚洲AV少妇熟女 | 日本一本二本无码免费视频 | 久久免费看少妇高潮A片特爽 | 射精区-区区三区 | 欧美特黄三级成人 | A片娇妻被交换粗又大又硬V | 深夜你懂的在线网址入口 | 国产精品毛片 | 国产成人福利在线视频下载 | 99九九精品视频 | 免费观看大片bbb | 毛茸茸性毛茸茸大b | 91福利视频网 | 99久久精品全部 | 人成午夜免费视频在线观看 | 亚洲国产品综合人成综合网站 | 国产成人在线观看免费网站 | 狼狼躁日日躁夜夜躁A片 | 中国国产一级毛片视频 | 水蜜桃免费视频看爱如潮水 | 美女性生活片 | 久久6热视频在线观看 | 色18欧美美女 | 影音先锋av色噜噜影院 | 三级网站日本 | 最近韩国日本免费观看免费 | 国产波多野结衣中文在线播放 | 精品AV亚洲一区二区 | 久久99国产亚洲精品观看 | 免费一级肉体全黄毛片 | 舔插视频| 亚洲精品一区二区绿巨人 | 欧美性综合| 亚洲色拍偷拍精品一区二区 | 国产乱国产乱老熟300部视频 | 色一区二区 | 亚洲精品AV一区午夜福利 | 一个好妈妈7中字头强华驿 一二三影院 | 成人69| 无套内谢少妇毛片A片999 | 最近中文字幕完整版2019免费 | 亚欧精品一区二区三区四区 | 色女人综合 | 欧美日韩永久久一区二区三区 | 久久国产 vs | WWW婷婷AV久久久影片 | 久久精品无遮挡一级毛片 | 最新日韩欧美不卡一二三区 | 中文字幕乱人伦视频在线 | 高h高肉浪贱 | 99久久精品国产免看国产一区 | 四虎影视网| 国产三级级在线观看大学生 | 中文字幕一区二区区免 | 无码乱人伦一区二区亚洲 | 瑟瑟网站免费网站入口 | 亚洲精品久久久久久AV | 狠狠撸影视 | 日本xxxxxxxxx69中国 | 日韩特级毛片 | 日本高清在线看片免费视频 | 最近更新中文字幕 | 久久97精品久久久久久清纯 | 精品国产网 | 日本老女人 | 中文字幕国产精品 | 中文字幕免费在线 | 日本三区四区免费高清不卡 | 亚洲综合丁香婷婷六月香 | 亚洲A片无码一区二区三区公司 | 亚洲日本国产综合高清 | 国产又黄又硬又湿又黄的A片小说 | 一本大道中文无吗 | 日本理论片午午伦夜理片2021 | 色婷婷久| 最近中文字幕在线看免费完整版 | 狠狠色成人综合网图片区 | 国产a区| 欧美日韩国产综合在线小说 | 青青操网 | 成人国产色情无码永久免费软件 | 国产成人v爽在线免播放观看 | 拍戏时滑进去了 H爽文 | 亚洲精品蜜夜内射 | 无码A片激情做爰视频在线观看 | 无限看片的动漫视频在线观看 | 亚洲精品第一页中文字幕 | 欧美在线观看第一页 | 日本免费观看的视频在线 | 噜噜噜久久| 含羞草传媒一区二区三 | 琪琪电影网伦理片韩国 | 色婷婷在线视频 | 中文人妻AV久久人妻水密桃 | 久久综合香蕉久久久久久久 | 日韩精品无码A片一二三区 日韩精品无码二三区A片 | 四虎欧美| 翁熄乩伦小说翁熄性放纵 | 真实国内老女人的露脸视频 | 国产福利高清在线视频 | 成人午夜视频在线观 | 午夜视频你懂的 | 日韩性做爰免费A片AA片 | 亚洲天堂视频在线免费观看 | 欧美黑人一区二区三区免费A片 | 蝴蝶谷成人网站 | 免费啪视频在线观看视频日本 | 美女内射毛片在线看 | 波多野办公室激情A片 | 黄色片久久久 | 成人爽a毛片在线视频网站 成人首页 | 中文天堂最新版www官网 | 黄色网战在线观看 | 国内精品人妻无码久久久影院蜜桃 | 国产69精品久久久久人妻 | 亚洲AV国产福利精品在现观看 | 亚洲色欧美图另类综合 | 免费中文字幕不卡视频 | 波多野结衣中文丝袜字幕 | 你懂的在线观看视频 | 四虎国产在线 | 亚洲精品久久久一区 | 免费费很色视频大片 | 最近中文字幕高清中文字幕1 | 星崎アンリ | 中文乱码在线中文字幕中文乱码 | 亚洲色婷婷久久精品AV蜜桃久久 | 美女裸身照(无内衣)动态图 | 国产精品久久久久免费视频 | 午夜快车神马影视 | 色偷偷男人的天堂a v | 麻豆吧| 91国内视频在线观看 | 成人18免费网站在线观看 | 精品国产一区二区三区四区勃大卷 | 性生交大片免费看 | 日韩免费精品视频 | 久久综合色一综合色88中文 | 亚洲精品第一区二区APP | 可以免费看的卡一卡二 | 色综合久久久高清综合久久久 | 激情文学另类小说亚洲图片 | 国产精品扒开腿做爽爽爽视频 | 日本欧美视频在线观看三区 | 校花被房东C得合不拢腿H男男 | 香蕉久久一区二区三区啪啪 | 午夜精品福利在线导航小视频 | jizz在亚洲| 日韩人妻熟女中文字幕 | 精品中字一卡2卡三卡4卡乱码 | 国产又粗又黄又爽的A片精华液 | 国内精品伊人久久久久妇 | 97av在线 | 欧洲VIDEOS重口变态深 | 最近新韩国hd视频 | 国产精品久久欧美久久一区 | 久久免费视频在线观看6 | 欧美日韩中文字幕免费不卡 | 日韩欧美一区二区三区在线播放 | 无人区卡一卡二卡网站 | 奇米在线777在线视频 | 国产精品久久久久三级 | 风韵人妻丰满熟妇老熟女 | 国产色播| 成人影院线在线观看免费观看 | 五月色 网站 | 无码精品日本一区二区桃花岛 | 亚洲成av人在线视 | 毛片基地看看成人免费 | 波多野结衣中文字幕2022免费 | 无码观看在线电影 | 视频一区视频二区在线观看 | 日本一本二本三区无码 | 成人做爰WWW免费看视频日本 | 亚欧色一区W666天堂 | 国产在线a免费观看 | 99热影视 | 亚洲精品久久久久久中文 | 青青青视频蜜桃一区二区 | 成人男女网18免费0 成人免费在线视频观看 | 精品人妻无码一区二区三区蜜桃一 | 日本国产一卡二卡三新区 | 亚洲一区高清 | 十九天未删减在线观看 | 97午夜理论片影院在线播放 | 国产一级一片免费播放刺激 | 另类 校园 人妻 武侠 | 宋徽宗是南宋还是北宋 | 日日碰狠狠躁久久躁孕妇 | 麻豆视频免费观看 | 国产成人精品999在线 | 免费啪视频观免费视频 | 欧美乱爱 | 亚洲AV国产精品无码精 | 再深点灬舒服灬太大了添A片小说 | 久久只有这里有精品 | 亚洲AV成人一区二区三区啪啪 | 97夜夜澡人人爽人人模人人喊 | 国产一区不卡 | 国产在线观看不卡免费高清 | 免费毛片网站在线观看 | 99久9在线视频 | 免费一级夫妻a | 久久成人免费网站 | 成人精品AV一区二区三区网站 | 翁公的粗大挺进小婷的咪 | 久久久99精品免费观看精品 | 一本久| 91精品福利一区二区三区野战 | 日本高清一卡二卡三卡四卡免费 | 91福利在线播放 | 色5555情网站 | 亚洲视频日本有码中文 | 国产精品日本无码久久一 | 日本在线无 | 性欧美一区| 插到嗷嗷嗷叫群交 | 丰满女邻居做爰BD | 国产黄色片在线播放 | 免费一级特黄特色大片在线观看 | 天堂网在线观看视频 | 国产精品久久久久无码人妻 | 爱的尸检报告 | 手机上免费看twitch的加速器 | 朋友的爸爸1免费中字翻译 千色成人网 | 欧美天天干 | 伦理聚合在线观看 | 四虎国产视频 | 性一交一乱一伦一A片 | 成全在线观看免费观看大全 | 国产精品人妻午夜福利 | 国产精品第一国产精品 | 久久精麻豆亚洲AV国产品 | 色多多www| 国产成+人欧美+综合在线观看 | 国内精品一级毛片免费看 | 欧美三级a| 国产国拍亚洲精品av麻豆 | 斗破苍穹第5季全集免费观看 | 免费日产乱码卡一卡 | 黄网站色视频大全免费观看 | 日本免费人成在线网站 | 中国精品久久精品三级 | 麻豆AV久久AV盛宴AV | 成人精品国产亚洲AV久久 | 亚洲一区二区免费视频 | 少爷湿润粗大跪趴含BL | 国产亚洲精品久久久久久入口 | 99视频精品全部免费 在线 | 黄色免费网站在线播放 | 国产高潮呻吟无码精品AV | 波多野结衣在线观看视频 | 国产JJZZJJZZ视频免费看 | 午夜播放器在线观看 | 亚洲午夜在线播放 | 日韩新片王网 | 国产精品沙发午睡系列990531 | 97色伦图片 | 中文日韩亚洲欧美字幕 | 抖音樱桃丝瓜绿巨人黄瓜 | 久久国产综合 | 日韩人妻精品久久日 | 在线看91 | av淘宝 在线观看 | 亚洲一区免费视频 | 色老头xxxxbbbb视频 | 中文字幕韩国三级少妇在线光看 | 啪啪内射少妇20241028 | 国产精品扒开腿做爽爽爽A片软件 | 国产乱码人妻一区二区三区四区 | 免费无限次永久看黄的APP | 午夜精品一区二区三区在线观看 | 国产一区二区三区四区精华液毛 | 宝贝看我是怎么吃你水蜜桃的视频 | 国产久爱青草视频在线观看 | 人妻系列_第 9 部分 | 韩日精品在线 | 最新伦理电影_伦理电影 | 国产精品一级视频 | 日韩成人黄色 | a√视频| 精品国产乱码久久久人妻 | 四虎影视最新网站在线播放 | 最好看的韩国日本在线观看 | 无码人妻国产一区二区三区 | 香港激情黄三级在线视频 | jizz老妇乱| 中文无码第3页不卡av | 麻豆免费观看高清完整视频 | 日韩欧美中 | 三女一男做二2爱A片 | 成年网站在线看 | 高清无码中文字幕影片 | 亚洲人成网亚洲欧洲无码 | 免费无限次永久看黄的APP | 久久精品国产福利国产秒 | 老师邪恶影院a啦啦啦影院 老师我好爽再深一点办公室 | 狠狠躁日日躁夜夜躁A片小说免费 | 丁香五月 激情 婷婷 | 日批插的越快越爽好大好硬 | 日本一视频一区视频二区 | 久久6699精品国产人妻 | 亚洲情A成黄在线观看动漫软件 | 99精品视频免费 | 影视精品网站入口 | 一级毛片美国一级j毛片不卡 | 日本老妇和子乱视频 | 硬棒插的好深好湿 | 亚洲 欧洲 国产 日产 综合 | 国产人妻无码鲁丝片久久麻豆 | 黄色片一级免费 | 国产一级精品视频 | 阿娇不雅视频 | 国产在线播 | 五月婷婷开心中文 | 国产在线一区二区 | 香蕉久久av一区二区三区 | 久热国产在线视频 | 91麻豆国产精品91久久久 | 久久精品人妻无码一区二区三区盗 | 一级黄色毛片免费看 | 最近在线视频观看2018免费 | 无码一区二区三区亚洲人妻 | 一级中文字幕 | 永久免费看成人A片在线播放 | 欧日韩一区二区三区 | 亚洲AV久久无码高潮喷水 | 视频二区 调教中字 知名国产 | 成人AV免费网址在线观看 | 91制片厂制作果冻传媒麻豆 | 男人的天堂亚洲一线AV在线观看 | 一本久道综合五月色婷 | 宝贝看我是怎么吃你水蜜桃的视频 | 无码人妻一区二区三区A片 无码任你躁久久久久久久 无码日本电影一区二区网站 | 欧美国产激情二区三区-免费A片 | 国产九色在线 | 韩剧国语版你是我的命运 | 国产精品人妻免费精品 | 97热在线 | 九九视频精品36线视频在线观看 | 日本久久久久久久久久 | 日本高清免费一本视频无需下载 | 欧美性video老少配 | 免费国产黄网站在线观看可以下载 | 狠狠色网 | 日韩久久一区二区三区 | 美女被免费喷白浆视频 | 日本人妻A片成人免费看 | 久射久| 伴郎粗大的内捧猛烈进出视频观看 | 国产丰满人妻一区二区电影 | 巜隔壁放荡人妻bd高清 | 高清欧美性猛交xxxx黑人猛交 | 视频在线观看国产 | 国产国语在线播放视频 | 在线不卡日本v二区 w006.top | 中文字幕AV亚洲精品影视 | 色99在线| 三级日本高清完整版热播 | AV天堂午夜精品一区二区三区 | 人妻天天爽夜夜爽三区麻豆A片 | 午夜精品福利在线导航小视频 | 色偷偷网址| 国产理论视频 | 粗大新婚娇妻娇嫩 | 黄色的视频网站在线观看 | 亚州av| 五月婷六月婷婷 | 撞击着旗袍美妇的肉臀 | 麻豆儿 | 波多野结衣教师中文字幕 | 晓雪老师我要进你里面好爽 | 精品国产3p一区二区三区 | 久久久国产精品福利免费 | 免费无码一区二区三区A片18 | 日韩视频欧美视频 | 三级a午夜电影 | 国产精品视频在这里有精品 | 日韩国产一区二区三区四区五区 | 岛国黄色| 国产一区二区三区乱码在线观看 | 99国内自产精华 | 国第一产在线精品亚洲区 | 国产麻豆精品一区 | 欧美成人精品区综合A片 | 国内视频自拍 | 久久精品久久精品国产大片 | 久久男女 | 波多野结衣午夜 | 一区二区三区在线免费视频 | 播播网手机在线播放 | 一级片 mp4 | 好舒服好粗好硬免费视频 | 久久亚洲精品AV成人无码 | 中文一卡二卡三卡四卡免费 | 色WWW永久免费视频首页 | 久亚洲AV无码专区A片 | 久久草这在线观看免费 | 色六月婷婷亚洲婷婷六月 | 亚洲欧美伦理 | 度年华免费看 | 国产精品无码免费专区午夜小说 | 亚洲精品久久久久久久观小说 | 天天做天天爱天天综合网2021 | 在线观看a级片 | 91视频3p| 欧美精品一国产成人性影视 | 一区二区三区波多野结衣 | 风雨送春归免费观看 | 久久夜色精品国产尤物 | 性做爰A片免费看网站 | 最近的2024中文字幕国语版 小说 | 亚洲综合色五月久久婷婷 | 涩涩电影网| 在线伦理电影网 | 99精品视频观看 | 网站在线观看你懂的 | 亚洲精品久久久久久偷窥 | 久久www免费人成精品香蕉 | 天天干夜夜做 | 免费毛片a在线观看67194 | 97在线视频免费人妻 | 欧美又粗又大AAAAA级毛片 | 婷婷色情 | 国产AV一区二区三区日韩 | 看电影的网址 | 影音先锋电影三级伦理 | 偷自视频区视频首页 | 日韩视频免费一区二区三区 | 免费无码又爽又刺激A片涩涩在线 | 中文一卡二卡三卡四卡免费 | 亚洲xxxx视频 | 亚洲视频www | 最近更新中文字幕免费版 | 波多野结衣办公室在线 | 樱花草在线观看播放视频www | 国产欧美精品系列在线播放 | 樱桃视频直播在线观看高清下载 | 亚洲一区二区免费看 | 日本高清视频在线 | 免费国产久久啪在线 | 少妇被又大又粗又爽毛片久久黑人 | 好硬啊一进一得太深了A片69 | 久久青草国产手机看片福利盒子 | 成人免费电影 | 被黑人猛烈进出到抽搐动A片 | 久青草国产视频 | 日女人免费视频 | 一级黄色欧美 | 草草影院在线观看 | 亚洲免费资源 | 久久青草国产手机看片福利盒子 | 亚洲欧美中文日韩在线v日本 | 日韩欧美国产偷亚洲清高 | 黑人又大又粗又硬XXXXX动态图 | 久久久国产99久久国产首页 | 无码人妻精品国产婷婷 | 国产精品色婷婷在线观看 | 2021国产精品久久 | 欧洲一卡2卡3卡4卡乱码视频 | 国色天乡官网 | 国产美女裸露无遮挡双奶A片游戏 | 欧美性爱天天影视 | 国产人妻XXXX精品HD | 亚洲一区二区三区四区五区黄 | 国产毛多水多女人A片 | 亚洲熟女乱色综合亚洲图片 | 99ri精品国产亚洲 | 久久综合九色综合 | 中文人妻AV久久人妻水蜜桃 | 天堂亚洲欧美日韩一区二区 | 欧美黑人添添高潮A片WWW | 欧美一卡2卡3卡4卡乱码 | 成人自偷拍一区二区 | 自拍 亚洲 偷拍 青涩 | 久久久无码精品亚洲日韩啪啪网站 | 国产真实野战在线视频 | 蜜桃精品免费久久久久影院 | 欧美激情视频二区三区 | 一级高清毛片免费a级高清毛片 | 精品日韩一区 | 黄视频在线免费看 | 亚洲一卡2卡3卡4卡5卡乱码 | 免费播放黄色 | 8天堂资源在线 | 久久久久久综合一区中文字幕 | 日本高清中文 | 日本爽爽爽爽爽爽免费视频 | 婷婷综合亚洲 | 李宗瑞性侵照片全集 | 婷婷丁香社区 | 亚洲国产成人91精品 | 免费看的久久久久 | 四虎日韩 | 美女毛毛片 | www.日韩视频 | 一起看动漫 | 亚洲综合中文字幕无线码 | 成人欧美一区二区三区A片 成人色网 | 日韩精选 | 国产在线播放一区二区 | 国产免费久久精品99久久 | 久久亚洲国产伦理 | 无码精品人妻一区二区三区颖A片 | 国产三级精品三级 | 性XXXX18精品A片一区二区 | 欧美亚洲偷图色综合 | 啊片网站| 最近韩国日本免费观看 | 国产精品宾馆在线 | 欧美激情91| jizz日本在线播放 | 妇女敕BBB搡BBBBBB搡 | 五月免费视频 | 熟妇就是水多18P国产 | 国产精品成人无码A片免费网址 |