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

lazer

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

lwvso

13 Oct 2025(atualizado 13/10/2025 às 02h29)

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

Temas

Compartilhe

VíDEO: Menino de 10 anos salva a m?e durante convuls?o na piscina'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 como se inscrever no bet365its 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

_Simone_Gbagbo_Ivory_Coasts_ex-first_lady_cleared_to_contest_presidential_election.txt

Vinhos de Portugal 2025: veja destaques da programa??o de provas e como comprar ingressos ponto quente e os ponto quente lazer.

GRáFICOS

nos eixos

_Simone_Gbagbo_Ivory_Coasts_ex-first_lady_cleared_to_contest_presidential_election.txt

Marapanim, no nordeste paraense, é destaque no artesanato regional foco e os enciclopédia ponto quente.

Navegue por temas

Comunidade Jarandeua, em Marapanim, é referência quando o assunto é café Homem deixa cabelo crescer por dois anos para fazer peruca para a m?e, que tratou tumor no cérebro Escultura em frutas e vegetais chamam aten??o em competi??o na Tailandia Mulheres fazem sustento da coleta de andiroba na ilha do Combu, em Belém Confira a agenda cultural neste fim de semana em Belém Combina com o quê? Quatro chefs portugueses, todos com estrelas Michelin, harmonizam seus pratos com vinhos do país Vinhos de Portugal bate recorde de público no Rio e em S?o Paulo Grupo de ciclistas fala dos benefícios da bicicleta em Marapanim, regi?o nordeste do Pará Do arroz-doce a vinhos espetaculares: uma viagem pelo D?o, no Centro de Portugal Meninas da periferia criam aplicativo de mobilidade fluvial
狠狠色噜噜狠狠狠狠91 | 美女午夜福利4K视频在线观看 | 久久综合九色综合97_ 久久久 | 99ri在线精品视频 | 国产成人精品一区二区 | 9 1 视频在线 | 成年女人在线视频 | 精品久久久久久免费影院 | 男女一边摸一边做爽爽的免费文字 | 每日更新在线观看av | 在线不卡日本v二区三 | 久操视频在线观看免费 | 亚洲视屏在线 | 三级成人AV电影在线观看 | 又湿又深又爽的A片视频 | 久久精品国产99久久无毒不卡 | 欧美成视频 | 国产精品爽黄69天堂A片 | 亚洲制服另类 | 久久久久久久国产精品毛片 | 亚洲mv日韩mv欧美mv | 国产人妻一区二区免费AV | 伧理片午夜伧理片毛片日本 | 日本一二三区视频在线 | 一级女人毛片人一女人 | 九九线精品视频 | 亚洲偷怕 | 宝贝舒服吗好紧好多水小说 | 久草最新网址 | 宝贝看我是怎么吃你水蜜桃的视频 | 99久久精品国产一区二区小说 | 欧美一级三级 | 爱色成人网 | 日本高清免费视频毛片 | 天天狠狠弄夜夜狠狠躁·太爽了 | a级裸毛片| 在线免费观看毛片网站 | 精品AAAA巨乳| 国产精品人妻免费精品 | chinese熟女熟妇m1f | 久久综合给合久久97色美利坚 | 新japaneseoldman乱 | 国产精品色情国产三级在线观 | 亚洲精品久久麻豆蜜桃 | avtt天堂东京热一道本 | 美味的三姐妹在线观看 | 亚洲AV无码久久流水呻蜜桃久色 | 特级毛片片A片AAAAAA | 浪货嗯啊趴下NP粗口黄暴 | 性瘾荡乳H古代 | 国产成人精品免费久久久久 | 污视频下载| 免费观看a毛片一区二区不卡 | 99热成人精品免费久久 | 久久国产精品一国产精品金尊 | 大片成人版| 亚洲精品高清国产一线久久97 | 亚洲经典一曲二曲三曲 | 秋霞无码AV久久久精品 | 欧美又粗又大AAA片 欧美又粗又大XXXX无码 | 国产精品久久久久久99人妻精品 | 性夜a爽黄爽| 韩日在线播放 | 性开放的欧美大片高清播放 | 中文天堂在线视频 | 三级网站国产 | 女同桌张开腿让我爽了一夜 | 午夜爱爱免费视频体验区 | 国产一区二区不卡亚洲涩情 | 国内高清自拍 | 国产理论视频在线观看 | 日本高清免费一本视频无需下载 | 国产片MV在线观看 | 大香线蕉97久久 | 四虎影视免费观看免费观看 | 一级毛片q片 | 十八种看黄禁用软件APP入口 | 肉版浪妇小龙女 | 美女解开胸衣露出奶头的游戏 | 四虎影视免费看 | 亚洲乱妇老熟女爽到高潮的片 | 忘忧草.WYC.IA| 51免费午夜啪啪 | 国产乱码免费卡1卡二卡3卡 | 最近更新中文字幕2018全集免费 | 婷婷电影网 | 香港三级日本三级人妇网站 | 天天做天天爱夜夜爽毛片毛片 | 色播影院性播影院私人影院 | 日本亚洲精品无码专区国产 | 草莓视频午夜在线观影 | 最新黄yyid | 国产福利萌白酱在线观看网站 | 精品三级国产 | 夜夜躁狠狠躁日日躁视频 | 可以直接看的av网址站 | 99热在线获取最新地址 | 欧美性生交大片免费看A片免费 | 蜜桃MV在线播放免费观看网站 | 久久精品视频9 | 国产 偷拍 在线 福利 | 色偷偷的xxxx8888 | 婷婷爱五月天 | 永久域名在线观看视频 | 国精产品999永久中国有限公司 | 国产第一页在线视频 | 成人在线免费观看视频 | 久9久9精品免费观看 | 性殴美高清视频 | 中文国产乱码在线人妻一区二区 | 免费视频88av在线 | 韩国伦理片网站 | 999插插插 | 阿v天堂2018在无码 | 一体一道久久88色合综合网 | 中文字幕在亚洲第一在线 | 四个熟妇搡BBBB搡BBBB | 亚洲欧美日韩中文加勒比 | 欧亚洲精品一区中文字幕拾精者 | 人人揉人人人人澡人人 | 丝袜诱惑在线播放 | 国产无套内射又大又猛又粗又爽 | 最近中文字幕高清中文 | 亚洲精品免费日日日夜夜夜夜 | 亚洲乱码AV中文一区二区 | 中文字幕日本六区小电影 | 欧美一级做a爰片免费 | 国产精品天天影视久久综合网 | 2018一级毛片免费观看 | 91免费版在线观看 | 无码人妻中文在线佐佐木明希 | 狼人久久尹人香蕉尹人 | 久久综合五月开心婷婷深深爱 | 亚洲免费国产在线日韩 | 久久综合伊人中文字幕 | 丁香花成人电影 | 免费看黄在线观看网站 | 国产毛片精品AV一区二区 | 亚洲欧美乱日韩乱国产 | 国产精品人妻无码久久久免费看 | 影音先锋av色咪影院 | 91精品全国免费观看老司机 | sifangpian国产在线观看 | 99久久99久久久99精品齐 | 99视频在线播放 | 五月天久久婷婷 | 久久精品国产免费 | youyjzzcom最新欧美| 免费又黄又爽1000禁片 | 91精品免费不卡在线观看 | 国产高清资源一卡二卡 | 九9热这里真品 | 酒神免费全集观看 | 蜜臀AV色欲A片无码一区二区 | 国产一级理论免费版 | 欧美亚洲国产日韩一区二区三区 | a级亚洲片精品久久久久久久 | 99爱在线精品视频免费观看9 | 一个人看的高清视频日本 | 久草中文视频 | 斯大林格勒战役免费高清观看 | 香港日本三级在线播放 | 老头老太bbbbbxxxxx | 97超视频在线观看 | 伦理片飘花手机在线 | 中文字幕 日韩 人妻 无码 | 中文字幕人成乱码熟女APP | 婷婷色九月综合激情丁香 | 久久国产露脸老熟女 | 熟妇乱子作爱视频大陆 | 婷婷色青基地 | 人善交videohd另类 | 麻豆一卡2卡三卡4卡网站 | 久久一日本道色综合久 | 精品三级内地国产在线观看 | 韩国中文全部三级伦在线观看中文 | 国产真实强被迫伦姧女在线观看 | 伊人成综合网伊人222 | 久久国产一级毛片一区二区 | 波多野结衣a v免费观看 | 亚洲地址一地址二地址三 | 日韩一卡2卡3卡4卡乱码免费 | 五月婷婷综合在线 | 国产人妻人伦精品婷婷 | 用舌头去添高潮无码AV在线观看 | 免费看毛片网 | 亚洲 欧美 国产 图片 | 久久国产一区二区 | 免费一级做a爰片久久毛片 免费一级特黄欧美大片久久网 | 国产一级网站 | 欧美极品jizzhd欧美4k | 古装一级淫片a免费播放口 古装一级无遮当一级毛片 古装一级毛片手机免费看 古装一级毛片免费观看 | 国内精品伊人久久久久妇 | 精品亚洲永久免费精品 | 夜夜操综合 | 久久婷婷五月综合色国产 | 国产精品第1页在线观看 | 国产乱人对白A片麻豆 | 国产精品亚洲视频在线观看 | 最近最新2019中文字幕 | 国产精品伦一区二区三级视频 | 草草视频在线播放 | 国产 亚洲 网友自拍 | 国产亚洲精品久久久999无毒 | 自拍欧美日韩亚洲动漫 | 国产精品久久久久久久久免费 | 亚洲精品第一国产综合野 | 欧美亚洲三级 | 在线亚洲精品国产一区麻豆 | www成人免费观看网站 | 亚洲精品蜜桃AV久久久 | 成人国产精品日本在线 | 国产aav| 成人做爰69片免费看网站 | 国产一级簧片 | 超m自缚痴女 | 丁香花成人论坛 | 国产91久久精品一区二区 | 91在线一区二区 | 亚洲自偷自偷图片在线高清 | 亚洲欧美一区二区三区图片 | 美女爽到嗷嗷嗷叫 | 182ty在线观看| 亚洲A片无码精品毛片 | 中文日韩亚洲欧美字幕 | 泷泽萝拉 qvod | 免费观看黄页网站 | 欧美阿v天堂视频在99线 | 欧美激情无码视频一二三 | 给我一个可以免费看片的WWW | 日本在线观看网站 | 无翼乌之全彩爆乳口工不知火舞 | 欧美巨乳勺A片 | 国产亚洲精品久久久闺蜜 | 天天操夜夜草 | 韩国最污禁网站免费观看 | 求av网站 | 精品自拍视频在线观看 | 手机在线看黄色 | 国产午夜精品一区二区不卡 | 亚洲高清免费在线观看 | 一区二区三区高清 | 国内精品久久久久久不卡影院 | 国产资源在线免费观看 | 影音先锋资源站yyxf2 | 荡翁乱妇小说 | 欧美骆驼趾xxxx | 在线免费观看中文字幕 | 色婷婷久久久swag精品 | 韩国久久久久无码国产精品 | 久九九精品免费视频 | 国产SUV精品一区二区88L | 翁公的粗大挺进小婷的咪 | 四虎影视免费完整版在线观看 | 国产精品久久久亚洲 | 免费一级国产大片 | 上床网址 | 成人A片产无码免费视频软件 | 一级毛片免费不卡在线 | hd最新国产人妖ts视频 | 又硬又粗进去好爽A片免费视频 | 色综合中文字幕 | 国产一区二区三区无码A片 国产一区二区三区乱码在线观看 | 耽肉高H喷汁呻吟受攻 | 欧洲精品不卡1卡2卡三卡四卡 | 国产精品久久久久久免费软件 | 91精品国产综合久久精品 | 天天做日日爱 | 成都影院手机在线高清 | 免费精品国产人妻国语三上优雅 | 一级毛片一片毛 | 免费观看久久精品视频 | 在线激情视频 | jjzz韩国| 婷婷色五月另类综合视频 | 久久精品国产99国产精品澳门 | 亚洲第六页 | 亚洲中文字幕在线观看 | 亚洲AV无码一区二区色情蜜芽 | 亚洲国产精品成人综合久久久 | 亚洲精品一区二区午夜无码 | 窝窝午夜看片七次郎青草视频 | 免费成人伦理电影 | 人人香蕉| 成人做爰视频WWW在线观看 | 久久成人国产精品免费软件 | 久久综合图片 | 欧美一区二区三区免费 | 女人张开腿让男人桶爽的 | 无码欧美毛片一区二区三 | 免费国产又色又爽又黄的网站 | 日本红怡院亚洲红怡院最新 | 亚洲偷自拍国综合 | 色欲AV亚洲AV永久精品 | 女人与牛交ZOZO| 免费看欧美特黄久久毛片久久 | 成人黄网站A片免费观看 | 欧美日韩一卡2卡三卡4卡新区 | 农夫导航mcc| 办公室漂亮人妇在线观看 | 蜜桃久久久久久久久久久 | 国产真实乱系列 | 91新视频| 精品黄色片 | 久久综合色一综合色88中文 | 欧美高清视频www夜色资源网 | 亚洲看片无码免费视频 | 午夜性色吃奶添下面69影院 | 精品成人无码A片免费软件 精品AV综合一区二区三区 | 日韩精品亚洲专在线电影 | 台湾一级毛片永久免费 | 国产人妻人伦精品1国产 | 在线观看 有码 制服 中文 | 好色电影院 | 亚洲福利区 | 黄色日b视频 | 毛片基地免费视频a | 国产毛A片啊久久久久久A | 国产精品福利在线播放 | 国产精品V无码A片在线看小说 | 欧美人xxxxxbbbb| 你好湿呀!小妖精快叫 | 色偷拍亚洲偷自拍 | 国产小视频在线高清播放 | 把腿张开老子臊烂你多P视频软件 | 性生交大片免费看 | 性生a | 熟女泄火一区二区三区在线 | 丰满多毛少妇做爰视频 | 国产精品美女久久久久AV超清 | 久久精品9 | 九一视频app | 女人做爰高潮呻吟17分钟 | 国产福利在线观看免费第一福利 | 99久9在线 | 免费 | 国产成人精品影视 | 国产精品高潮呻吟AV久久 | 色情图插插插 | 天美传媒国产剧影视公司 | 免费无遮挡无码H肉日本动漫 | 一区国产传媒国产精品 | 日韩亚洲欧美综合 | 久久久久国产成人精品 | 国产精品成人免费福利 | 国产免费网站看v片元遮挡 国产免费区 | 在线观看免费的小电影网站 | 把女人弄爽A片特黄大片在线 | 双性男生被老师摁着调教 | 九九热视频精品在线观看 | 久久综合五月天婷婷伊人 | 久久综合九色综合97手机观看 | 国产精品 同事 在线 视频 | 欧美精品高清无码 | 国产一区二区三区四区精品AV | 网站免费满18成年在线观看 | 久久国产露脸老熟女 | 4438成人情人网站 | 国产人妻午夜无码AV天堂 | 亚州毛色毛片免费观看 | 农村国产妇女精品一吃春药的效果 | 欧美色图一区二区三区 | 亚洲爆乳精品无码AAA片 | 色日本视频| 奇米一区二区三区四区久久 | 99视频精品免费99在线 | 夜鲁夜鲁夜鲁视频在线观看 | 99在线观看国产 | 麻豆人妻无码性色AV | 久久婷婷五月综合色精品首页 | 欧美精品久久久久久无码人妻 | 亚洲AV无码乱码国产精品94色 | 国产精品日本不卡一区二区 | 影音先锋色情AV在线看片 | 狠狠干狠狠操 | 动漫免费在线观看 | 在线观看高清影院WWW | 草莓app下载 2019年 | 亚洲天天综合网 | 综合网天天 | 久久夜夜肉肉热热日日 | 国产视频网站在线观看 | 久草在线精品ac | 欧美区bt | 91制片厂果冻传媒七夕 | 把女人弄爽特黄A大片片 | 琪琪电影网午夜理论片717西瓜 | 四虎影视国产884a精品亚洲 | 久久网免费视频 | 日本黄A级A片国产免费 | 40集电视剧免费看全集在线观看 | 日本一卡二卡三卡四卡免IOS | 相爷与女H嗯啊 | 天天做天天爱天天操 | 中文字幕国产在线观看 | 五月丁香婷姐色 | 婷婷开心激情综合五月天 | 国产1区2区三区不卡 | 亚洲国产中文字幕在线视频综合 | 幻女与人xx00毛片免费 | 国内精品亚洲 | 日本无码色哟哟婷婷最新网站 | 久久99中文字幕伊人 | 亚洲欧美中文字幕高清在线 | 黄色网址视频在线播放 | 欧美做爰免费大片视频 | 91中文字幕在线播放 | 91精品福利视频 | a v 在线视频 亚洲免费 | 狠狠狠色丁香婷婷综合久久88 | 久久高清内射无套 | 国产精品久久久久无码人妻 | 免费国产在线视频 | 亚洲一级黄色片 | 激情五月 色播五月 | 国产在线综合视频 | 亚洲三级无码经典三级 | 影音先锋亚洲AV少妇熟女 | stormydaniels在线看 | 国产午夜婷婷精品无码A片 国产午夜视频在线观看 | 亚洲一卡2卡三卡4卡 网站入口 | 国产欧美一区二区日本加勒比 | 亚洲国产成人久久综合区 | 久久91精品国产91久 | 99综合色 | 一区二区三区免费视频网站 | 人人干97| 99ri在线| 日韩精品一卡2卡3卡4卡5卡 | 一区二区三区毛AAAA片特级 | 国产亚洲精品久久久久久久软件 | 爱逼色| 久久爱国产视频在线 | 亚洲美女久久 | 美景之屋4在线 | 日本女同视频 | mcc聚色导航| 美女扒开腿让男人桶尿口 | 国产亚AV手机在线观看 | 国产成人啪午夜精品网站男同 | 粗长巨龙挤进美妇 | 教官你的太大了芊芊h | 综合无码色情一区二区 | 在线导航福利 | 九九香蕉 | 在线观看精品自拍视频 | 中文字幕一区波多野结衣 | 无码免费一区二区三区日本A片 | 上床网址| 韩国理伦电影 | 97密挑| 国产午夜永久福利视频在线观看 | 丁香婷婷九月 | 欧美性啪啪 | 日本高清专区一区二无线 | 国产精品人妻无码久久网站 | 久视频在线观看久视频 | 精品国产人成亚洲区 | 国产不卡高清在线观看视频 | 性夜夜春夜夜爽AA片A | 久久久精品中文字幕麻豆发布 | 中中文字幕亚洲无线码 | 果冻传媒 天美 麻豆 | 天天综合网天天做天天受 | 视频一区二区三区蜜桃麻豆 | 国产亚洲精品成人AA片小说 | 亚洲国产第一区二区三区 | 欧美极品欧美日韩 | 日本无码一区二区二区 | 黄色一级免费看 | 欧洲亚洲精品A片久久99动漫 | 免费精品国产人妻国语麻豆 | 坐在男人嘴上让他添在线视频 | 在线免费观看最新电影 | 国产男人的天堂在线视频 | 精品久久久久久影院免费 | 嗯宝贝叫的再浪一点 | 性色aⅴ在线观看swag | bb毛片| 四虎影视成人永久免费观看视频 | 精品国产乱码久久久久久夜深人妻 | www亚洲免费 | 欧美最猛黑人xxxx黑人猛交69 | 婷婷中文在线 | 日本高清不卡免费 | 涩狠狠狠狠色 | 亚洲综合色色图 | 午夜婷婷精品午夜无码A片影院 | 欧美激情视频网址 | 中文字幕乱码熟妇五十中出 | 综合色网站 | 午夜人妻熟女一区二区 | 天堂在线v| 亚洲中文字幕婷婷在线 | 91麻豆国产精品91久久久 | 黄色一级片免费播放 | 极品美女扒开粉嫩小泬图片 | 影音先锋女人AA鲁色资源 | 一级毛片卡 | 欧美日韩国产综合视频一区二区三区 | 免费视频91| 日韩一区二区超清视频 | 久久九九色 | 亚洲精品不卡久久久久久 | 在线观看免费播放黄污 | 影音先锋亚洲AV少妇熟女 | 欧美xxxx做受欧美精品 | 奶大灬好大灬好硬灬好爽在线播放 | a久久久久一级毛片护士免费 | 久久午夜免费鲁丝片 | 辽宁老熟女高潮狂叫视频 | 被灌满了嗯不行NP | 亚洲国产欧美日本视频 | 日本三级香港三级国产三级 | 国产精品福利影院 | 久久亚洲精品中文字幕三区 | 国产麻豆9l精品三级站 | 欧美精品hdvideosex4k | 亚洲一区二区三区国产精华液 | 免费电影在线看 | 日本一本二本免费视频在线观看 | 毛片A久久99亚洲欧美毛片 | 四虎网站最新免费地址2024 | 国产jizz美国jizz免费看 | 国产精品无码免费专区午夜小说 | 日韩一卡2卡三卡4卡无卡网站 | 波多野吉衣一区 | 奇米四色在线视频 | 男人天堂网2021 | 欧美视频在线观看网站 | 宝贝乖把腿分大一点h欧阳凝小说 | 亚洲一区二区三区四区五区六区 | 亚洲三级免费 | 国产黄色在线播放 | 精品一区二区久久久久久久网站 | 亚洲精品久久国产高清 | 成人满18在线观看网站免费 | 亚洲精品AV无码精品 | 日本不卡va | 欧美激情一区二区三区中文字幕 | 久久多人视频聊天 | 欧美一区精品 | 久久不卡一区 | 欧美日韩国产综合在线小说 | 91精品福利一区二区三区野战 | 韩国羞羞秘密教学子开车漫书 | 国产在线欧美精品中文一区 | 一本免费视频 | 无人在线观看视频高清视频 | 国产精品 制服中字 在线视频 | 无人区卡一卡二入口 | 欧美日韩国产伦理 | 补课H湿 1V1 PLAY| 久久成人黄色 | 天天干天天干天天操 | 欧美日韩不卡视频一区二区三区 | 美女裸露胸部100%无遮挡 | 国产日韩精品一区二区三区在线 | 亚洲A片20247KKKKK | 中国一级毛片视频免费看 | 成人全黄A片免费看 | 丁香五月综合缴情综合 | 黄色片网址在线观看 | 老司机试看午夜 | 九九在线精品视频 | 国产免费人成在线视频视频 | 长篇YIN乱大合集TXT全文下载 | 新妺妺窝人体色WWW 性xxxxbbbb免费播放视频 | 2024伊人查蕉在线观看 | 四虎影视免费观看高清视频 | www.黄色在线| 日本人妖miran护士 | 麻豆在视频线 | 亚洲偷自拍另类高清 | 亚洲国产成人久久精品影视 | 国产crm系统91 | 日本一区二区三区免费看 | 国产精品午夜小视频观看 | 婷婷六月色 | 狼狼鲁色在线视频播放 | 91福利免费视频 | 国产成人精品亚洲2020 | 免费大片av网站 | 少妇人妻邻居做爰无码 | 欧美在线精品一区二区在线观看 | 攻强行往受屁股里放大东西 | 97久久久久国产精品嫩草影院 | 午夜视频在线观看免费观看在线观看 | 丁香激情综合网 | 性欧美v| 国产成人精品一区二区 | 黄网页在线观看 | 国产日产人妻精品精品 | 成人午夜久久精品 | 窝窝影院午夜看片毛片 | 色狠狠色狠狠综合天天 | 国产性生大片免费观看性 | 夜夜躁狠狠躁日日躁视频 | 一级做a爱过程免费视频app | 欧美极品 | 日本理伦片午夜理伦片 | 污污的漫画小说羞羞漫画 | 久久精品国产99国产精偷 | 黄色免费在线观看网址 | xxx国产精品xxx| 桃子视频在线观看高清免费视频 | 主播蜜汁丝袜精品自拍 | 亚洲国产精品成熟老女人 | 狠狠干2023 | 高清一区二区三区 | 亚洲精品影视 | 波多野结衣手机在线播放 | 久久久久久久久久免免费精品 | 国产在线精品一区二区 | 午夜精品成人一区二区视频 | 黑人又大又粗又硬XXXXX动态图 | 500福利国产精品导航在线 | 午夜影院一区 | 日本一区二区高清免费不卡 | 看全色黄大色黄女片 | 97人妻熟女中文免费视频 | 国产97色在线 | 免费 | www日韩免费高清视频 | caoporn国产精品免费视频 | 久久a热6 | 天堂√最新版中文在线天堂 | 免费啪视频在线观看视频日本 | 欧美性A片又硬又粗又大暴力 | 日韩精品无码一区二区三区 | 精品人妻伦九区久久AAA片 | 殴美影院 | 在厨房挺进美妇雪臀电影 | 国产精品第1页在线播放 | 一女被多男枪H又黄又激烈 一女多男np高辣文h | 欧美另类高清 | 久热re在线视频精品免费 | 色狠狠一区二区 | 人妻一区日韩二区国产欧美的无码 | 欧美xxxxhd | 午夜免费大片 | 欧美papa | 无码专区久久综合久综合字幕 | 国产永久在线观看 | 国产 日韩 中文字幕 制服 | 福利所导航导航导航导航 | 亚洲欧美日韩在线观看一区二区三区 | 久久影院精品 | 最近中文字幕完整视频 | 午夜在线网站 | 国产精品av免费观看 | 无码任你躁久久久久久久 | 久久精品1| 羞羞麻豆国产精品1区2区3区 | 高清一区二区亚洲欧美日韩 | 精品视频在线免费观看 | 亚洲AV无码成人一区二区三区 | 国产人妖在线 | 亚洲国产精品v在线播放 | 国产一卡2卡3卡4卡无卡国色 | 色欲一区二区三区精品A片 色欲综合视频天天天 | 天天擦天天干 | 可以免费看的卡一卡二 | 一二三四日本中文在线 | 自拍欧美日韩亚洲动漫 | 满天星电影在线观看完整免费 | 一本久道在线 | 啊灬啊别停灬用力深视频 | 九九视频免费观看 | 中文字字幕在线中文乱码 | 亚洲精品久久无码一区二区大长腿 | 国产做爰完整版在线观看 | 人善交videos欧美3 | 好男人免费影院www神马 | 中国黄色在线观看 | 五月天色丁香 | 色偷偷亚洲女人天堂观看欧 | 一区二区三区精密机械公司 | 国产免费的又黄又爽又色 | 成人影院YY111111在线 | 亚洲熟女片嫩草影院 | 欧美性类s0x | 好色成人网 | 青青草国产免费国产是公开 | 伦理片飘花手机在线 | 欧美一级免费在线观看 | 蜜柚AV久久久久久久 | 韩国三级日本三级 | 性xxxxxxx欧美胖老太肥肥 | JIZJIZJIZ 日本老师水多 | 日韩视频在线一区 | 天天夜夜啦啦啦 | 地狱天堂2019完整版免费观看 | 中日韩毛片 | 亚洲经典自拍 | 亚洲男人的天堂A片我要看 亚洲免费久久 | 亚洲免费无码中文在线 | 精品人妻无码一区二区三区手机版 | 久久只有这里有精品4 | 大地影院日本高清免费完整版 | 一区二区久久日韩一片棋牌 | 成人AV久久一区二区三区 | 中文字幕乱码熟妇五十中出 | 久久国产一久久高清 | 久久综合色一综合色88中文 | 波多野结衣中文字幕2022免费 | 无线日本视频精品 | 99视频精品全国在线观看 | 欧美激情无码成人A片 | 国产AV一区二区三区日韩 | 99 久久99久久精品免观看 | 可以免费看的卡一卡二 | 窝窝午夜剧场 | 亚洲一区二区三区在线视频 | 日本少妇浓毛BBWBBWBBW | 蝌蚪视频窝在线播放 | 国产精品一区二区AV97 | 苍井空电影去哪儿看网址 | 天美一二三传媒免费观看 | 国产老女人一区二区A片 | 99精品在线视频观看 | 字幕中文字幕 | 97久久综合精品久久久综合 | 一级一级毛片免费播放 | 国产在线亚洲精品观看不卡 | 激情亚洲视频 | 最近免费观看高清韩国日本电影 | 国产肥白大熟妇BBBB | 亚洲一区二区三区成人 | 一级毛片免费毛片毛片 | 少妇2做爰A片 | 品色堂 pin6 品色免费堂 | 99在线这精品视频 | 日本三级本道在线播放 | 欧美在线观看视频一区 | 丁香五月综合缴情综合 | 久久福利资源网站免费看 | 亚洲婷婷国产精品电影人久久 | 天天干天天干天天插 | 秽乱常伦H | 国产福利一区二区麻豆 | 老司机综合网 | 国产亚洲综合网曝门系列 | 中文字幕在线综合 | 色噜噜噜AV亚洲男人的天堂 | 国产69精品久久久久99不卡 | 免费视频大全集免费 | 69欧美xxxxx色护士视频 | 一区二区三区精品道 | 日本不卡一区二区三区 | J8又粗又硬又大又爽又网站 | 欧美精品XXXXBBBB| 日本久久精品视频 | 45分钟级毛片免费视频 | 国产三级日产三级日本三级 | AV午夜久久蜜桃传媒软件 | 桃花久久 | 亚洲一区高清 | 色网站欧美 | 国产精品人妻一码二码 | 亚洲国产精品久久又爽黄A片 | 天天做.天天爱.天天综合网 | 一本到12不卡视频在线dvd | 性生交大片免费看A片直播 性生生活色欲片性按摩 | 国内一级一级毛片a免费 | 麻豆精选2021 | 扣扣影视在线 | 久久亚洲精品AV无码四区 | 亚洲精品AV一区午夜福利 | 最近中文字幕高清免费大全8 | 91女神精品系列在线观看66 | 成人在线黄色 | 自拍 偷拍 亚洲 欧美 另类 | 97视频免费在线观看 | 伊人婷婷涩六月丁香七月 | 国产又黄又爽胸又大免费视频 | 高树玛利亚qvod | 最新发布页ccyycom草草影院 | 国产丰满人妻一区二区电影 | 久久五月色婷婷丁香六月综优物 | 99好久被狂躁A片视频无码 | 久久久久久久久久久久久久久久久久久久 | 99精品偷自拍 | 插B内射18免费视频 插吧插吧综合网 | 91精品一区二区 | 亚洲国产欧美另类 | 日本免费网站 | 三级在线看中文字幕完整版 | 理论片午午伦夜理片1 | 国产精品大尺度尺度视频 | 四虎影在线永久免费四虎地址8848aa | 黑人超大巨茎 | 亚洲欧美制服丝袜一区二区三区 | 飞空精品影院首页 | 中文字幕在线观看不卡 | 久久99免费视频 | 日本免费三级网站 | 色综合天天综合网国产人 | 国语熟妇乱人伦A片久久 | 天上人间影院久久国产 | 婷婷综合在线 |