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

foco

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

xhngfud

13 Oct 2025(atualizado 13/10/2025 às 00h04)

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

Temas

Compartilhe

Neymar publica foto de Helena após desabafo de Amanda Kimberlly sobre post de Biancardi.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 cassino online brasil video bingoits 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

'Whether rich or poor, it was the longest of nights' How a 2003 blackout brought New York City to a standstill.txt

Nhoque de abobrinha: sirva o prato leve e saboroso.txt enciclopédia e os abrangente enciclopédia.

GRáFICOS

nos eixos

100-year-old_veterans_birthday_walk_in_Portishead_stops_traffic.txt

Neymar escolhe o Santos e aguarda reuni?o com árabes para definir volta ao Brasil – R7 Esportes.txt abrangente e os conhecimento conhecimento.

Navegue por temas

Nos EUA, detentas trabalham em programa de recupera??o de borboleta amea?ada de extin??o Sociedade Um só Planeta.txt Northern_Ireland_Latest_News_amp_Updates_BBC_News.txt Norman Guy Hundreds remember Muker Silver Band 'inspiration'.txt No varejo do futuro, ‘tecno invisível’ e loja como ponto de conex?o 25 anos Valor Econ?mico.txt Northern_Ireland_Latest_News_amp_Updates_BBC_News.txt Northern Ireland Latest News & Updates News.txt Nippon Steel construirá usina de US$ 4 bilh?es com forno elétrico a arco nos EUA Empresas Valor Econ?mico.txt New_types_of_engineered_wood_are_ready_for_building_sites.txt Novo Nordisk congela contrata??es em meio à perda de lideran?a no mercado de medicamentos contra obesidade Empresas época NEGóCIOS.txt Northern Ireland Politics Latest News & Updates BBC News.txt
精品乱码久久久久久中文字幕 | 日韩在线免费视频观看 | 麻豆视传媒在线看 | 国产精品久久久久久久久免费观看 | 越南一级毛片免费 | 日日噜噜夜夜狠狠va视频 | 国产资源视频 | 久久久久久国产精品免费 | 中文字幕人妻少妇引诱隔壁 | 国产精品成人va在线观看 | 国产jizz美国jizz免费看 | 国产丰满老熟妇乱XXX1区 | 99re这里 | 麻豆天美国产一区在线播放 | 亚洲精品又粗又大又爽A片 亚洲精品一区无码A片 | 亚洲婷婷国产精品电影人久久 | 色悠悠网站 | 老司机午夜视频 | 国产经典哔哩哔哩 | 美国一级毛片免费看 | A片扒开双腿猛进入免费观看 | 动漫在线观看片A免费观看 法国艳妇LARALATEXD | 日产精品卡二卡三卡四卡视 | 婷婷97狠狠的狠狠的爱 | 六月婷婷综合激情 | 狠狠色综合7777久夜色撩人 | 日韩AV爽爽爽久久久久久 | 久久无码人妻中文国产AV苍井空 | 宝贝乖把腿分大一点h欧阳凝小说 | 亚洲AV成人片色在线观看高潮 | 国产免费自拍 | 中文字幕视频在线免费观看 | 国内精品久久久久鸭 | 苍老师免费网址 | 欧美videosex性欧美成人 | 伊人亚洲综合网色 | 黄页网站在线看 | 黄色在线观看网站 | 麻花豆传媒剧在线MV免费版特色 | 国产免费AV片在线播放唯爱网 | 国内精品久久久久久久久 | 久久精品网站免费观看 | 黄色一级毛毛片 | 修理工厨房侵犯人妻系列国产 | 忘忧草影院在线www韩国日本 | 黄色在线看网站 | 美美哒免费高清影院在线观看直播 | 五月天激情婷婷 | 国产精品免费久久久免费 | 中文字幕欧美日韩在线不卡 | 亚洲欧美日韩国产专区一区 | 草莓app色版 | 丁香综合激情 | 色美妞 | 开心色99 xxxx| 免费的黄网站 | 我的公把我弄高潮了视频 | 日本精品无码久久久久三级国产 | 中国少妇BBWBBW牲交 | 看黄网站在线看 | 国产在线高清不卡免费播放 | 涩情图片网 | 色综合婷婷 | 最近在线视频观看2018免费 | 国产无遮挡A片又黄又爽 | 国产精自产拍久久久久久蜜 | 亚洲最大黄网 | 漂亮的丰年轻的继坶3在线 漂亮的丰年轻的继坶3在线观看 | 国产亚洲综合一区二区在线 | 一本大道卡一卡二卡三乱码 - 八 | 国产精品亚欧美一区二区三区 | 小泽玛利亚 种子 | 亚洲一区在线观看视频 | 国产人妻人伦精品久久久 | 欧美日本一道道一区二区三 | 欧美区在线 | 久久久久久久国产精品毛片 | 国产成人一区二区三区影院动漫 | 精品久久久无码人妻中文字幕边打电话 | 欧美一区二区三区免费看 | 精品一卡2卡三卡4卡三卡免费 | 激情六月 | 91极品哺乳期女神挤奶在线 | 免费一级a毛片在线播放 | 激情文学小说区另类小说同性 | 国产全黄a一级毛片 | 天美传媒影视在线网址 | 日本A级做爰午夜免费视频 日本A片成人片免费视频生活片 | 水岛津实浴室白衣图 | 夜夜操夜夜骑 | 国产一级高清视频免费看 | 日本成人高清 | 大色小色 | 三级黄色网址 | 青草青草久热精品视频在线观看 | 国产三级日产三级日本三级 | 久久久国产精品网站 | 天堂网在线资源 | 亚洲AV国产精品无码A片APP | 国产美女视频一区二区二三区 | 国产91影院| 2024亚洲 欧美 国产 日韩 | 男人和女人做污污污的事APP免费 | 婷婷久久久五月综合色 | 一区二区三区 日韩 | 久久精品女人毛片国产 | 国产91观看 | 久久国产免费观看精品A片 久久国产免费观看精品1 | 97资源共享在线视频 | 成人免费看AA片 | 美国毛片免费一级 | 免费大片av网站 | 国产欧美熟妇另类久久久 | 国产成人精品123区免费视频 | 久久国产天堂福利天堂 | 丁香花在线视频观看免费 | 精品综合久久久久97 | 吉泽明步高清无码中文 | 日本高清天码一区在线播放 | 丁香六月激情 | 水蜜桃视频在线播放下载 | 亚洲综合网国产精品一区 | 日本免费一区二区久久人人澡 | 99热资源 | 每日最新avhd101天天看新片 | 亚洲精品一线二线三线无人区 | 在线观看网站国产 | 人人做人人爽人人爱秋霞影视 | 三级理论中文字幕在线播放 | 黄色三级免费看 | 国产久| 天天影视色香欲综合网 | 亚洲欧美精品无码大片在线观看 | 爽好大快深点视频网站 | 在线观看播放理论片 | 五月情视频在线观看 | 99福利在线 | 天堂亚洲欧美日韩一区二区 | 亚洲成年人免费网站 | 在线观看黄永久免费网站 | 久久福利资源网站免费看 | 国产jizzjizz免费看麻豆 | 天天干视频网站 | 成年人网站在线观看免费 | 久久综合久久鬼 | 斯大林格勒战役免费高清观看 | 啊灬啊别停灬用力深视频 | 久久精品人妻一区二区蜜桃 | 波多野吉衣在线视频 | 三级毛片三级毛片 | 口工绅士里番中文全彩 | 久re这里只有精品最新地址 | 日本无码人妻精品一区二区蜜桃 | 少妇大乳妓女毛片A片 | 一区二区三区四区在线 | 中文字幕一区二区三区在线播放 | 四虎影视免费看 | 午夜福利麻豆国产精品 | 肉文辣文h文 | 亚洲午夜久久 | 日韩大片免费看 | 别停好爽好深好大好舒服视频 | 日韩最新视频一区二区三 | 一级大黄色片 | 97在线视频观看 | 一个人看的www在线看视频 | 日本在线观看一级高清片 | 擼一擼AV网站 | 狠狠色丁香婷婷综合欧美 | 97制片厂爱豆传媒 | 日日夜夜天天干 | 久久亚洲网站 | 日韩经典中文字幕 | 五月婷婷六月合 | 国产精品久久久久久久久ktv | 狠狠色噜噜狠狠狠狠98 | 夹震蛋玩到失禁PLAY调教 | 精品国产96亚洲一区二区三区 | 在线视频久久只有精品 | 国产精品久久久亚洲 | 国产成人黄网在线免 | 狠狠色噜噜狠狠色综合久 | 日韩夜夜操 | 国产精品99在线观看 | 亚洲欧洲国产成人综合一本 | 射精区-区区三区 | 午夜久久久精品 | 久久婷婷国产剧情内射白浆 | 国产在线精品福利大全 | 国产AV电影区二区三区曰曰骚网 | 日本中文字幕有码在线视频 | 日韩做A爰片久久毛片A片 | 丁香激情综合网 | 中芯国际回应涉军传闻 | 色偷偷WWW.8888在线观看 | 色播成人网 | 黄色一区二区三区 | www.蜜臀 | 国产一级特黄高清免费下载 | 爱色影音播放器下载 | 在线涩涩免费观看国产精品 | 日韩字幕在线 | 男男体育生乱yin高H肉汁 | 边吃上边摸下H(男男) | 97国产影院 | 精品人妻无码一区二区三区狼群 | 国产成a人亚洲精v品久久网 | 久久久久九九精品影院 | 日本在线成人 | 国产SUV精品一区二区883 | 久久久精品午夜免费不卡 | 国产三级国产精品国产普男人 | 首页欧美日韩在线观看 | 三级视频网站 | 亚洲午夜A片一区二区 | 国产乱子视频 | 久久9966精品国产免费 | 我就是要当着他的面做你 | 国产a区| 久久天堂一区二区三区 | 国产亚洲成AV人片在线观黄桃 | 亚洲日本欧美日韩高观看 | 成年日韩片av在线网站 | 国内精品久久久久久网站 | 脔到她乖H糙汉1V1 | 性一交一乱一交A片久久 | 国产下药迷倒白嫩美女在线观看 | 嫩交18xxxx| 无码人妻中文在线佐佐木明希 | 一级一级女人18毛片 | 欧洲不卡一卡2卡三卡4卡网站 | 亚洲区视频在线观看 | caoporn成人免费视频 | 算你色永久免费视频播放 | 日本韩国三级 | 欧美精品18videosex性欧 | 能免费看的色情成人网址 | 777精品久无码人妻蜜桃 | 涩涩爱涩涩片影院 | 国产自在线观看 | 噼里啪啦影院大全 | 久久这里只有热精品18 | 日韩国产人妻一区二区三区 | 伊人网综合视频 | 免费一极毛片 | 国产一级特黄a大片99 | 亚洲 暴爽 AV人人爽日日碰 | 亚洲国产第一区二区三区 | 抖音C人版奶片7028 | 最近中文国语字幕在线播放视频 | 亚洲 欧美 日韩 国产 视频 | 亚洲字幕 | 99精品久久久久久久 | 巨肉超污巨黄H文小短文双男 | 欧亚乱色熟一区二区三四区 | 99精品免费视频 | 波多野结衣办公室33分jian情 | 国产精品久久久天天影视香蕉 | 99国产精品久久人妻无码 | 99精品久久久久久久 | 狠狠色噜噜狠狠狠狠91 | 欧美国产综合日韩一区二区 | 91香蕉视频黄色 | 国产精品久久久久久99人妻绯闻 | 我要看WWW免费看插插视频 | 中文字幕亚洲第一 | 成全在线观看免费播放 | 风韵人妻丰满熟妇老熟女 | 加勒比AV一本大道香蕉大在线 | dvd8090cnm欧美大片 | 国产对白精品刺激一区二区 | 免费大片黄国产在线观看 | 国产精品99在线观看 | 日本成人在线看 | 中餐厅5季几号播出 | 久久久乱码精品亚洲日韩 | 色婷婷在线视频观看 | 韩国视频在线观看高h | 国产精品久久毛片A片杨颖 国产精品久久人妻互换 | 他的舌头弄得我爽水好多 | 韩日午夜在线资源一区二区 | 国产精品jizzjizz | 午夜亚洲国产理论片4080 | 亚洲AV综合AV国产AV | 成人wwxx| 婷婷国产成人精品视频小说 | chinesespank国产打屁股实践视频 | 麻豆国产一区二区三区四区 | 一道本不卡免费高清在线 | 国产精品久久久久9999高清 | 日本三级中文字幕 | 男女边摸边吃奶边做爰动漫 | 亚洲一区高清 | 亚洲午夜精品久久久久久抢 | 亚洲激情一区 | 免费日产乱码卡一卡2卡三卡四 | 国产一级视频 | 日本A片把舌头伸进粉嫩视频 | 国产高清一级毛片在线不卡 | 亚洲国产一区二区a毛片 | 欧美人与物videos新另类性 | 国产一级a毛片高清 | 最好韩国日本免费高清 | 中文字幕久久熟女人妻AV免费 | 日韩欧美一区二区三区在线播放 | 国产精品免费大片 | 成人午夜AV亚洲精品无码网站 | jvid精品视频极品美女 | 午夜视频在线观看一区二区 | 精品午夜中文字幕熟女人妻在线 | 一区二区三区四区在线免费观看 | 免费看高清片国产剧情 | 国产v在线| 首页欧美日韩在线观看 | 日本二区三区欧美亚洲国 | 婷婷五月色综合人妻 | 再深点灬舒服灬太大了动态图 | 波多野结衣视频免费观看 | 亚洲巨乳日本无码一二三区 | 超碰免费caopoin最新 | 无码人妻少妇色欲AV一区二区 | 国产精品人妻无码免费久久一 | 99久久国产免费 - 99久久国产免费 | 天天干夜夜草 | 在线乱码一卡二卡麻豆 | 千涩成人网 | 天天操天天干天天透 | 偷拍亚洲网友图片区 | 成人做爰69片免费看网站 | 美女脱裤衩扒开尿口给男子摸 | 91精品国产免费入口 | 男人站影音先锋男人站 | 国产亚洲小视频线播放 | 99er4久久视频精品首页 | 亚洲国产成人在人网站天堂 | 成人做爰视频WWW | 国产www在线观看 | 欧美日本一道高清二区三区 | 日本a级片免费 | 国产另类ts人妖一区二区 | jizz全欧美| 国产福利在线 | 国内精品一卡二卡三卡公司 | 中文无码有码亚洲 欧美 | 性生a | 又硬又粗进去好爽A片天美APP | 久播播快播 | 日韩精品视频在线观看免费 | 中文字幕亚洲第一 | 国产无遮挡A片无码免费软件 | 撕开胸罩胸奶头玩大胸动态图片 | 樱花草在线社区www日本视频 | 免费黄色一级 | 国产黄色在线网站 | 欧美午夜福利1000集2019年 | 女人把腿张开叫男人桶免费视频 | 乱亲H女秽乱常伦强强和苹苹 | 日本成人性视频 | 蜜臀AV色欲A片无人一区 | 国产又爽又猛又粗的视频A片 | 99久久久无码国产精品AAA | 黄网站色成年片在线观看 | 精品欧美成人无码专区毛片视频 | 在线观看中文字幕一区 | 免费人成黄页在线观看日本 | 又长又大又粗又硬3p免费视频 | 欧美一级欧美一级在线播放 | 日本欧美一区二区三区视频 | 2018精品国产一区二区 | 激情内射日本一区二区三区 | 撞击着旗袍美妇的肉臀 | 亚洲视频久热九色视频 | 婷婷综合在线观看丁香 | 又硬又粗进去好爽A片欧美 又硬又粗进去好爽A片天美APP | 开心片色99xxxx| 日本高清在线观看视频www | 亚洲 图片 另类 综合 小说 | 丰满人妻妇伦又伦精品国产 | 日本精品无码一区二区三区久久久 | 伦理电影网百度影音 | 久久人人爽爽人人爽AA片 | 无码一区二区三区亚洲人妻 | 黄页网站在线播放 | 午夜在线亚洲男人午在线 | 撕开奶罩揉吮奶头的A片 | 天天干天天舔 | 美乳女神思瑞 | 一区二区无码精品AV | 九九热这里只有国产精品 | 国产韩国精品一区二区三区 | 午夜精品一区二区三区在线视 | 秋霞伦理片看福利 | 老师你下面太紧进不去动态图 | 少妇寂寞偷公乱400章深夜书屋 | 涩涩影视 | 777精品出轨人妻国产 | 免费又粗又硬进去好爽A片视频 | 欧美激情视频在线观看一区二区三区 | 国产淫语对白在线 | 少妇人妻邻居做爰无码 | 窝窝午夜色视频国产精品东北 | 亚洲丁香婷婷 | 宝贝乖把腿分大一点h欧阳凝小说 | 熟女乱p网| 亚洲自偷自拍另类图片小说 | 后入到高潮免费观看 | 成AV人片在线观看WWW | 国产精品综合色区 | 女医生一级毛片 | 国产午夜精品久久理论片 | 特级毛片全部免费播放免下载 | 肉乳床欢无码A片动漫 | 日韩日韩日韩日韩日韩 | 国产欧美另类久久久精品免费 | 另类在线 | 亚洲中文字幕在线播放YW193. | 国产日韩精品欧美一区喷水 | 日韩一区二区三区视频在线观看 | chinese国产hdfree中文 | 国产精品永久免费视频 | 国产涩涩视频在线观看 | 国内视频一区二区 | 欧美一区二区三区四区在线观看 | 高清在线免费观看完整版电影大全 | 婷婷熟女在线视频 | 亚洲色无码A片一区二区潘甜甜 | 香蕉久久国产AV一区二区 | 欧欧美18videosex性哦欧美美 | 亚洲影视天堂 | bt天堂网.www在线资源 | 91欧美精品 | 最近日本韩国高清免费大全 | 天天摸夜夜添夜夜添A片小说 | 欧美日韩激情视频 | 国产激情一区二区三区四区 | 亚洲青春草 | 亚洲精品一区二区三区婷婷月色 | 九色综合伊人久久富二代 | 亚洲日本韩国在线 | youjizzxxxx18| 亚洲精品国产第一区第二区 | 李小璐不雅视频21秒 | 中国性受xxxx免费 | 高清对白精彩国产国语 | 5月丁香婷婷 | 葫芦娃.combo3.0深夜释放自己 | 欧美日韩a级a | 欧美极品在线观看 | 日本视频免费看 | 亚洲色无码A片一区二区红樱 | 色翁荡熄76篇 | 韩日精品| 亚洲 在线 日韩 欧美 | 黄色成人在线观看 | 三级黄色在线免费观看 | 麻豆国产96在线日韩麻豆 | 日本韩国免费视频在线 | 国产ts在线播放 | 精品国产污污免费网站入口 | 欧美xvideosexo孕妇 | 国产又黄又湿又刺激不卡网站 | 亚洲成熟女人毛毛耸耸多 | 国产人妻人伦精品无码.麻豆 | 地狱天堂2019完整版免费观看 | 日韩色情图片小说AV一区 | 古代荡女丫鬟高H辣文纯肉 古代高H啪肉NP文 | 欧美日本韩国一二区视频 | 亚洲精品伦理熟女国产一区二区 | 中文字幕在线观看亚洲日韩 | 最新资源资源影音先锋 | 亚洲午夜网 | 奇米777在线视频 | 花房姑娘免费观看8集电视剧高清 | AV国産精品毛片一区二区网站 | 成人在线高清不卡免费视频 | 公交车艳妇系列1一40 | 日韩欧美一区二区三区四区 | 久久精品夜夜春 | 精品福利视频导航 | 性老少xxxhd 性久久久久久久久久 | 日本三级香港三级韩国三级 | 网站免费满18成年在线观看 | 91制片厂制作果冻传媒麻豆 | 狠狠色丁香久久婷婷 | 欧美伊人 | 色视频在线观看完整免费版 | 国产人妻无码鲁丝片久久麻豆 | 国产精品永久免费视频 | 久久不卡精品 | 美女视频永久黄网站免费观看 | 欧美精品XXXXBBBB | 花房姑娘8电视剧免费观看 狠狠色丁香婷婷综合 | 国产成人亚洲影视在线 | 亚洲午夜片 | 日本高清网| 99九九视频高清在线 | 欧美精品一区二区在线观看 | 午夜精品视频在线观看美女 | 最新在线黄色网址 | 无码人妻丰满熟妇A片护士M | 九九热在线视频观看这里只有精品 | 五月色综合无码一区二区三区 | 我和乡下妽妽的性故事小说 | 黄页网站免费在线观看 | 日韩黄色在线 | 快播av电影网站 | 久久99国产精品久久99软件 | 免费99精品国产自在现线 | 久久99精品国产一区二区三区 | 欧美成人一级 | 亚洲在线中文无码首页 | 国产爽的冒白浆的视频 | 无码激情做A爰片毛片A片日本 | 黑人巨大两根一起挤进A片小说 | 免费人成视频 | 国产激情在线观看完整流畅 | 国产区福利 | 四虎影视在线观看2024a | 女主播直播大尺度视频获刑 | 免费看少妇高潮A片黄 | 玖玖爱视频在线 | 美女扒开腿让男人桶爽30分钟 | 亚洲精品久久黄大片 | 阿娇双腿张开实干12次 | 国产手机在线视频 | 老湿机免费体验 | 欧美国产伦久久久久 | 国产在线精品二区李沁 | 四虎影视免费观看免费观看 | 久久免费视频1 | 欧美一卡二卡3卡4卡无卡六卡七卡科普 | 教官嗯给我快添嗯哪啊视频 | 精品a级片| 日韩美一区二区 | 性调教室高H学校小说 | 欧美一级视频免费 | 久草在线新免久费观看视频 | 精品一区二区三区无码AV久久 | 亚洲 欧美 自拍 美腿 卡通 | 亚洲综合在线播放 | 亚洲一区二区三区在线视频 | 六月丁香六月综合缴情 | 全肉整夜不拔男男车文 | 久久综合色区 | 中文字幕一区在线观看视频 | 天天操天天谢 | 欧美三级在线电影免费 | 强奷皇后娇呻浪吟前后夹击 | 再猛点深使劲爽免费视频 | 最近更新中文字幕大全免费 | 好爽好多水C死你视频 | 欧美孕妇乱大交xxxxx | 日本午夜精品一区二区三区电影 | 秋霞电影网伦大理电影在线观看 | chinesespank国产打屁股实践视频 | 欧美极品在线观看 | 最爽最刺激18禁视频 | 99色婷婷 | 亚洲欧美日韩视频一区 | 亚洲情色 快播 | 中文字幕国产精品 | 99热7| 中国女人内谢69XXXXXA片 | 丨九色丨国产人妻 | 亚洲天堂久久久 | 欧美性生交活XXXXXDDDD | 欧美激情在线播放一区二区三区 | 国内露脸少妇精品视频 | 脱女学小内内摸出水网站免费 | 男人一边吃奶一边做爰免费视频 | 国产成人黄色在线观看 | 四虎国产在线 | 成人免费www在线高清观看 | 国产精品xxxav免费视频 | 精品91一区二区三区 | 最新国产在线 | 97在线观看在线观看 | 色WWW永久免费视频首页 | 燃烧电视剧情介绍 | 国产成都一二三四区 | 涩涩爱社区在线观看 | 真人做爰直播 试看 | 国产女人第一次做爰视频 | 2022国产成人精品福利网站 | 欧美亚洲啪啪 | 另类小说第1页综合 | www视频免费在线观看 | 国产精品无码人妻系列AV | 99re在线视频精品 | 美女午夜色视频在线观看 | 伦理79电影网在线观看 | 大好深啊把腿开开污文腐 | 欧美可以直接看的A片 | 亚洲阿v天堂在线z2024 | 亚洲精品手机在线观看 | 看真人视频一级毛片 | 日本精品少妇爆乳无码视频 | 精品无人区麻豆乱码1区2区新区 | 欧美日韩在线看 | 熟女人妻久久中文字幕一二区 | 日韩精品中文字幕高清在线 | 肉肉描写很细致的黄文 | 国产精品AV国片偷人妻麻豆 | 曰本三级香港三级人妇99视频 | 加勒比テカ痴女の猛烈交尾 | xxxx68日本老师hd | 大片性播放器 | 91资源在线视频 | 久久99精品一级毛片 | 国产99网站| 欧美剧场成人精品午夜 | 色综合久久久久久 | 成人一区视频 | 五月天婷婷亚洲 | 97国产精华最好的产品在线 | 影音先锋每日最新AV资源网 | 级R片内射在线视频播放 | 亚洲xxxx18| 久久国产高清波多野结衣 | 男女野外做爰全过程69影院 | 日本欧美一区二区三区片 | 97在线视频免费观看 | 蜜桃臀在线成人亚洲 | a黄色毛片| 日本人伦一区二区三区 | 豆国产97在线 | 亚洲 | 亚洲欧美手机在线观看 | 午夜福利视频10000在线观看 | 国产性生大片免费观看性 | 久久精品成人国产午夜 | 无码中文欧美一区二区三 | 亚洲国产精品综合久久久 | 国产人妻久久久精品麻豆 | 国自产拍偷拍精品啪啪 | 在线成本人视频动漫 www | 色久久综合视频本道88 | 一二三四日本中文在线 | 来啊mm影院亚洲mm影院 | 成人免费视频caoporn | 分享一个无毒不卡免费国产 | 蜜臀AV色欲A片精品一区 | 久久6热视频在线观看 | 99在线精品免费视频 | 日本无码免费A片无码视频 日本无码人妻精品一区二区蜜桃 | 日本欧美视频在线观看三区 | 一级毛片黄色片 | 边做边爱播放免费观看 | 色网址导航大全 | 九九九九精品视频在线播放 | 国产精品久久久久久人妻香蕉 | 国产精品成久久久久三级 | 性久久久久久久久久 | 少妇和大狼拘作爱A片 | 中文字幕完整高清版 | 无码日本邻居大乳人妻在线看 | 欧美内射BBW偷拍 | 2020年精品国产品在线网站 | 欧美一区永久视频免费观看 | 2022在线精品视频网站 | 国产一卡 二卡三卡四卡无卡乱码视频 | 亚洲免费网址 | 日本特爽特黄特刺激大片 | 99久久精品国产一区二区成人 | 久久久久久国产精品免费免费 | 亚洲色图8p | 久操免费在线视频 | 无码人妻丰满熟妇啪啪网不卡 | 日日碰狠狠躁久久躁7777 | 日韩精品中文乱码在线观看 | 国产免费无码又爽又刺激A片动漫 | 日本护士高清xxxxx | 四房播播 快播 | 水蜜桃视频在线播放下载 | 欧美精品91 | 狠狠色噜噜狠狠色综合久 | 色网在线观看 | 亚洲免费一级视频 | 夜夜穞天天穞狠狠穞AV美女按摩 | 久亚洲AV无码专区A片 | 亚洲精品在线观看91 | 视频在线观看大片 | 一级毛片一片毛 | 你懂的日韩 | 2018最新午夜在线视频 | 国产精品免费视频能看 | 国产亚洲福利精品一区 | 午夜寂寞网站 | 久久精品国语 | 日韩三级中文字幕 | 亚洲婷婷综合网 | 高清国产精品久久久久 | 五月婷婷综合激情 | 欧美高清日本三级人妇 | 国产无人区码卡二卡3卡4卡网站 | 伦理片网站 | 欧美日韩国产一区二区三区 | 国产精品久久久久久久久软件 | 久久亚洲A片COM人成A | 国产精品三级 | 国产人妻人伦精品熟女A片 国产人妻无码鲁丝片久久麻豆 | 成人网站免费观看 | 亚洲精品久久久久久成人 | 亚洲 综合 欧美在线 精品 | 国产韩国精品一区二区三区 | H高潮嗯啊娇喘抽搐A片男男视频 | 国产免费不卡视频 | 免费无码一线A片AAA片 | 日本一卡精品视频免费 | 久久精品国产视频在热 | 久久综合老色鬼网站 | 四虎影视免费在线 | 极品少妇粉嫩小泬啪啪小说 | 国产人妻出轨15P | 蜜月a 免费一区二区三区 | 人妻少妇69式99偷拍 | 国产永不无码精品AV永久 | 成人无码A片在线观看 | 免费精品一区二区三区在线观看 | 久久精品国产三级不卡 | 久久亚洲精品高潮综合色A片 | 波多野结衣aⅴ在线 | 91精品国产色综合久久 | 日韩污视频 | 日本丰满大乳乳液 | 巨大乳女人做爰视频在线 | 亚洲香蕉在线视频 | 97热在线 | 第四色新网站 | 2024video欧美18| 亚洲一卡2卡二卡4卡乱码 | 欧美xxxx做受欧美 | 好爽又高潮了毛片免费下载 | 日日碰狠狠躁久久躁20247 | 天天干天天爱天天操 | 成年ssswww中国女人 | 国产日产久久 | 欧美z00sk00lkntty猪 | 欧美一区二区三区高清视频 | a久久久久一级毛片护士免费 | 日本 一二三 不卡 免费 | 国产美女一级做a视频免费 国产美女主播一级成人毛片 | 男人扒开女人腿桶免费视频 | 狠狠色丁香婷婷综合 | 国产青草视频免费观看97 | 在线观看免费播放黄污 | 狠狠色丁香久久综合网 | 日韩AV国产精品成人无码 | 亚洲剧场午夜在线观看 | 久久久99精品免费观看精品 | 国产成久久免费精品AV片天堂 | 91蝌蚪视频在线观看 | 狠狠色丁香婷婷久久综合考虑 | 色综合久久丁香婷婷 | 亚洲黄色网 | 久久久国产精品无码人妻 | 熟女人妻-蜜臀AV-首页 | 开心四房色播网 | 亚洲国产精品热久久2022 | 亚洲精品无码成人A片在线虐C | 在线视频久久只有精品第一日韩 | 国色一卡2卡3卡4卡在线新区 | 成人片在线观看地址KK4444 | 免费啪视频在线观看视频久18 | 亚洲 欧美 bt | 成人a图| 亚洲欧美综合中文 | 狠狠色婷婷日日综合五月 | 免费国产一级特黄久久 | 91欧美一区二区三区综合在线 | 被十几个男人扒开腿猛戳电影 | 影音先锋资源av不撸 | 国产成人精品综合久久久软件 | 伊人影院蕉久影院直播福利 | 最近更新中文字幕2018全集免费 | 日韩精品久久久久久 | 国产精品JIZZ在线观看A片 | 国产一区二区内射最近更新 | 日韩一卡二卡三卡四卡免费观在线 | 婷婷色九月综合激情丁香 | 爱综合网 | 午夜一区欧美二区高清三区 | 色鬼综合网 | 国产美女黄性色A片 | 精品一卡2卡三卡4卡 | 欧美极品一区 | 美国一级毛片免费看成人 | 国产午夜视频在线观看 | 免费高清在线影片一区 | 亚洲精品乱码一区二区三区 | 在线观看免费电影 | 国产资源在线观看 | 精品人妻无码一区二区三区蜜桃一 | 白浊怀孕H白浊总受男男H | 无限观看韩国动漫免费观看大全 | 麻豆国产传媒18精品A片 | 视频一区视频二区在线观看 | 欧美日韩精品一区二区三区不卡 | 大陆一级毛片 | 色图片大全123 |