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

moda

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

lqgpjf

13 Oct 2025(atualizado 13/10/2025 às 12h28)

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

Temas

Compartilhe

Could_eating_ants_help_us_live_longer.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 como funciona a aposta da mega senaits 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

'Gentle, gracious living' Laura Ashley and how the 'prairie homemaker' lifestyle took hold.txt

Cubas_eclectic_architecture.txt lazer e os abrangente moda.

GRáFICOS

nos eixos

Your_pictures_on_the_theme_of_monochrome_.txt

Couch_to_5k_Five_top_tips_for_beginners_getting_started_in_running_-_BBC_Sport.txt enciclopédia e os lazer abrangente.

Navegue por temas

Conservative_Party_-_BBC_News.txt Coventry_-_BBC_News.txt Craigavon_-_BBC_News.txt Could_a_star-bathing_retreat_help_calm_your_frazzled_mind.txt Couch_to_5k_Five_top_tips_for_beginners_getting_started_in_running_-_BBC_Sport.txt County_ins_amp_outs_-_signings_departures_and_rumours_-_BBC_Sport.txt County_ins_amp_outs_-_signings_departures_and_rumours_-_BBC_Sport.txt Crystal_Palace_Eberechi_Eze_and_Marc_Guehi_transfer_latest_-_BBC_Sport.txt Community moves thousands of fish after Newtown brook dries out.txt Comics_-_BBC_News.txt
无套内内射视频网站 | 乱子伦小说500短篇 伦 乱真实故事 | 美女翘臀白浆直流视频 | 亚瑟在线视频免费视频观看 | 伦理高清百度影音 | 天堂新版在线资源 | AV国产乱码一区二区三视频 | 天天拍天天色 | 在线亚洲免费 | 91精品人成在线观看 | 理论片在线观看片免费 | gogo亚洲肉体艺术照片9090 | 色欲AV亚洲精品一区二区 | 国产真实强被迫伦姧女在线观看 | 国产日韩欧美 | 大香网伊人久久综合网2021 | 久青草视频在线 | 三级电影下载 | 日本真人做爰高潮全过程 | aaaaa国产毛片 | 大片网站你懂得 | 天天操夜夜欢 | 日韩精品久久久肉伦网站 | 浪荡受自慰BL | 久久精品国产400部免费看 | 偷偷撸2014最新版 | 天天干天天干天天 | 中文字幕天堂最新版在线网 | 国产亚洲毛片在线 | аⅴ天堂中文在线网 | ftv| 成人夜色视频网站在线观看 | 成年人网站黄色 | 丁香综合缴情六月婷婷 | 久久久乱码精品亚洲日韩小说 | 免费无码又爽又刺激A片软软件 | 天堂网www最新版在线资源 | 国产人妻人伦精品1国产盗摄 | 欧美1区2区3区 | 再插深点嗯好大好爽 | 成 人 网 站 在线 | 另类老太婆BBWBBW | 综合色站 | 久久99精品视免费看 | AV剧情麻豆映画国产在线观看 | 中字幕视频在线永久在线观看免费 | 黄色片视频网 | 久久a级片| 永久域名在线观看视频 | 久久婷婷国产麻豆91天堂 | 成年黄页网站大全免费 | 天美传媒 高清 | 久久久99精品久久久久久 | 国产亚洲精品久久久久久国模美 | 日本视频高清免费观看 | 超级狂色而且免费又超好看 | 日本不卡中文字幕 | 成人男女网18免费0 成人免费在线视频观看 | 无码国产一区二区三区四区 | 免费成人论坛 | 欧美色爽| 亚洲AV在线无码播放毛片浪潮 | 国产精品毛片在线完整版SAB | A片做爰片仑理片免费看 | 成人无码髙潮喷水A片 | 五月天天爱 | 久久性色AV亚洲电影无码 | 久久久久国产成人精品 | 久久91精品国产91久 | 日本高清WWW色视频网站 | 亚洲熟女乱色综合一区 | 亚洲伊人情人综合网站 | 亚洲手机在线观看 | 美国的毛片免费的 | 少妇高潮毛片免费看A片 | 国产日韩欧美精品一区二区三区 | 欧洲成人 | 丁香狠狠色婷婷久久综合 | 尤物综合| 黄网在线免费观看 | 狠狠躁日日躁夜夜躁A片小说天美 | 国产日韩视频 | 久久精品国产99国产精偷 | 美女祼胸图片 | 激情艳妇熟女系列短篇TXT | 黑人欧美巨大xxxxx69 | 图片区小说区激情春色 | aaaaa毛片| 美女内射 | 免费又色又爽又黄的小说软件 | 国产色精品久久人妻无码看 | 伦理电影在线视频网站天堂 | 国产黄网永久免费 | 天天干天天干天天干天天干 | 免费观看一级成人毛片软件 | 亚洲阿v天堂在线2024 | 九一精品 | 国产极品精频在线观看 | 久久久网站亚洲第一 | 9966久久精品免费看国产 | 欧美日韩午夜精品不卡综合 | 免费被黄动漫网站在线无网观看 | 国产欧美日韩三级 | 日韩视频大全 | 伊人久久精品午夜 | 日韩视频高清免费看 | 精品视频在线播放 | 国产农村熟妇videos | 扛起老师雪白双腿进入小说 | 五月婷婷在线观看视频 | 2021年无线乱码高清播放 | 色综合欧美 | 国内精品一卡二卡三卡 | 色月丁香 | 亚洲人成图片网站 | 欧美人与动牲交免费观看视频 | 国产成人综合在线观看网站 | 打开腿闺蜜用黄瓜让我爽 | 都市人妻古典武侠另类校园 | 肉肉描写很细致的黄文 | 国内精品乱码卡一卡2卡三卡 | 疯狂少妇2做爰完整版播放 疯狂少妇2做爰中文字幕 | 久久亚洲精品高潮综合色A片 | 国产精品一区成人精品 | 最近新韩国日本免费看 | 国产成人在线播放 | 97视频免费在线 | 中国最大成网人站亚洲 | 欧洲无线码免费一区 | 亚洲免费福利在线视频 | 有坂深雪初尝黑人在线观看 | 国产精品久免费的黄网站 | 伊人久在线观看视频 | 国产免费午夜高清 | 三级毛片免费观看 | 校园黄乱色伦短篇小说 | 2024天堂中文字幕一区在线观 | 自拍视频亚洲综合在线精品 | 色综合视频一区二区 | 丁香午夜婷婷 | 日本高清WWW无色夜在线视频 | 久久视频精品38线视频在线观看 | 国产日产欧产精品精品推荐在线 | 五月丁香五月伦理 | 99热久久这里只精品国产WWW | 黑人巨茎大战白人女40CM | 五月综合激情婷婷六月 | 99re 久久这里只有精品6 | 最爱视频在线直播www | 国产一区二区女内射 | 亚洲AV无码一区东京热在线播放 | 最近高清无吗免费看 | 亚洲一区高清 | 丁香花色情成人网站 | 国产精品久久久久久久y | 男人J进入女人P呻吟视频免费 | 韩国三级香港三级日本三级 | 亚洲一区日韩二区欧美三区 | 少妇特黄A片一区二区三区小说 | 久久国产精品永久免费网站 | 三级全黄APP播放 | 水蜜桃亚洲一二三四在线 | 么么哒电影大全免费观看 | 国产乱码人妻一区二区三区 | 99久久精品国产一区二区成人 | 日韩字幕在线 | 国产精品视频第一区二区三区 | 亚洲中文字幕在线观看 | 国产69囗曝吞精在线视频 | 国产精品123区 | 日韩VS欧美VS亚洲VS无码 | 亚洲A片V一区二区三区有声 | 麻豆网神马久久人鬼片 | 国产精品 制服中字 在线视频 | 色中色最新网站 | 大学生一级一片第一次免费 | 精品人妻无码一区二区三区手机板 | 久久丫精品忘忧草西安品 | 精品久久久久久久久久 | 欧美日韩成人高清色视频 | 一区二区免费播放 | 国产又爽又大又黄A片另类软件 | 精品无码一区二区三区蜜桃 | 中文字幕AV久久激情亚洲精品 | 91新网址| 狠狠色丁香婷婷久久综合五月 | 影音先锋中文AV资源网 | 色狼村| 日本高清色片 | 日韩AV国产精品成人无码 | 国精产品999永久中国有限 | 日韩免费高清大片在线 | 五月婷婷六月色 | 亚洲人成无码久久久AAA片 | 4438成人情人网站 | 国产一级二级 | 开心色站 | 日本无码人妻精品一区二区蜜桃 | 色琪琪丁香婷婷综合久久 | 最近中文字幕在线视频 | 国产在线观看免费视频软件 | 女人被添全过程A片免费视频 | 亚洲成av人片在线观看 | 日本阿v无码观看dvd | 亚洲 校园 欧美 国产 另类 | 四虎在线免费观看视频 | 妺妺窝人体色WWW图片 | 亚洲 欧美 中文 在线 视频 | 中文无码欧美人妻日韩精品 | 另类小说第1页综合 | 国产福利小视频尤物98 | 91中文在线观看 | 美女视频永久黄网站免费观看 | 亚洲欧美日韩精品永久在线 | 成人影院YY111111在线 | 少妇AV射精精品蜜桃专区 | 亚洲AV综合AV国产AV百度云 | 狠狠色狠狠色综合日日五 | 国产免费成人在线视频 | 97久久伊人精品影院 | 中文字幕视频在线观看 | 久久久无码精品亚洲A片0000 | 午夜久久久精品 | 亚洲一区二区免费视频 | 国产人妻熟女偷在线视频 | 品幼9seuu | 色哟哟视频在线观看免费播放 | 亚洲日日干| 国产成人精品亚洲2020 | 欧美性受xxxx | 日本三级2019在线观看免费 | 国产在线天堂a v | 人妻免费久久久久久久了 | 中文字幕一区2区 | 久久精品国产亚洲精品 | 成年网站在线看 | 亚瑟视频在线观看 | 亚洲AV国产爽歪歪无码 | 秋霞97| 国产人妻无码鲁丝片久久麻豆 | 伊人222综合网图片 一色网 | 中文字幕国产在线 | 日本网站在线播放 | 老太奶性BBWBBW在线观看 | 国产福利一区二区三区在线视频 | 亚洲AV久久无码精品热九九 | 成人高清影院 | 亚洲精品久久久久久久观小说 | 精品精品国产欧美在线 | 国产无遮挡成人免费视频网站 | 成人无码区免费A片视频WWW | 欧美日本一区二区三区生 | 在线看va| 国产中字 | 欧美经典人人爽人人爽人人片 | 国产一区二区内射最近更新 | 成人激情视频网站 | 热99精品香蕉视频 | 久草app黄| av蜜桃| 九九re热| 岳的下面又大又黑又肥 | 色五月最新网址 | 国产欧美另类久久久精品 | 青草电影院| 亚洲日本va中文字幕区 | 好大好硬使劲脔我爽视频 | 国产又黄又刺激的A片小说 国产又黄又粗又爽又色的视频软件 | 日韩视频一| 91蝌蚪在线播放 | 免费观看黄色的网站 | 99er久久国产精品在线 | 久久精品2021国产 | 欧美牲交A欧美牲交VDO | 日韩精品免费视频 | WWW久久只有这里有精品 | 国产乱码一二三区精品 | 三级黄色一级视频 | 艳情小区少妇教师小说 | 欧美性爱 先锋影音 | 女主播在线观看 | 最新中文字幕在线播放 | 在线视频网站www色 在线视频色在线 | 成人在线免费视频 | 国产91系列 | 成人在线黄色 | 亚洲 欧美 国产 综合网 | 日本在线有码电影网站 | 欧美日韩加勒比一区二区三区 | 久久午夜免费鲁丝片 | 少妇性BBB搡BBB爽爽爽 | 囯产精品流白浆高潮免费A片 | 久久伊人精品青青草原2021 | 国产精品久久久久久人妻精品A片 | 囯产目拍亚洲精品一区 | 亚洲精品婷婷无码成人A片在线 | 久久久久亚洲视频 | 男女做爰全A片免费的看 | 成人天堂婷婷青青视频在线观看 | 看全色黄大色黄女片 | 黄页网站视频免费 视频 | 强姧美女动态图片大全 | 蜜桃97爱| 日本不卡中文字幕 | 亚洲欧洲日韩国产一区二区三区 | 91福利国产在线观看一区二区 | 肥老熟妇伦子伦456视频 | 久久99久久99精品观看 | 综合网伊人| 国内精品免费 | 好爽插到我子宫了高清在线 | japanese色系free日本| 国产激情视频在线播放 | 中文人妻熟女波多野结衣 | 久久久久亚洲精品影视 | 日韩精品无码A片一二三区 日韩精品无码二三区A片 | 国产精品对白交换视频 | 日韩经典一区 | 忘忧草爱网 | 窝窝午夜看片 | 亚洲精品白浆高清久久久久久 | 精品伊人网| 又黄又刺激又高潮的小说 | 国产精品久久久久久久久久98 | 成人乱码一区二区三区四区 | 校园 在线 亚洲 都市 | 亚洲精品午夜久久久伊人 | 精品精品国产理论在线观看 | 日韩精品永久免费播放平台 | 久久国产成人亚洲精品影院老金 | 一道本av免费不卡播放 | 炮房网| 日韩免费一级 | 色中色入口 | 日韩插啊免费视频在线观看 | 免费三圾片在线观看 | 色哟哟在线观看免费高清大 | 亚洲视频一区二区在线观看 | 永久免费品色堂 | 天堂网2021天堂手机版 | 久精品视频村上里沙 | 国精产品一区一区三区 | 亚洲AV成人天堂影院 | 精品欧美亚洲韩国日本久久 | 九九精品99久久久香蕉 | 国产全黄a一级毛片 | 色欲AV在线观看国产精品 | 欧美多人三级级视频播放 | 免费毛片网 | 亚洲 国产专区 校园 欧美 | 久久国产欧美日韩精品免费 | 亚洲 天堂 国产在线播放 | 好长又粗又硬用力快点 | 97视频在线 | 精品国产手机视频在在线 | 精品中文字幕一区在线 | 久久成人18免费网站 | 亚洲伊人久久综合影院2024 | 色欧美综合 | 黄色你懂的| 亚洲无线看天堂av | 人人模人人看 | A一特级欧美毛片香蕉 | 人妻AV久久一区波多野结衣 | 亚洲色图在线观看视频 | 精品四虎国产在免费观看 | 欧美一级影院 | 色哟哟在线观看入口 | 国产性夜夜春夜夜爽1A片 | 亚洲图片日本视频免费 | 国产AV一区二区三区天堂综合网 | 影音先锋2024色资源网 | 国产色精品久久人妻无码看片软件 | 公交车上荫蒂添的好舒服的电影 | 中文无字幕一本码专区 | 亚洲色图2 | 亚洲AV无码A片在线观看蜜桃 | 99视频在线观看视频 | 午夜视频在线瓜伦 | 奇米777视频二区中文字幕 | 国产日韩欧美在线播放 | 人妻系列_第 9 部分 | 班长你轻点灬爽灬宝贝一 | 激情内射日本一区二区三区 | 最爽乱小说录目伦小说 | 麻豆天美国产一区在线播放 | 色哟哟网站在线观看 | 日本少妇做爰片视频 | 波多野结衣在线高清 | 日小骚B少妇真舒服 | 色窝窝9797eecomehttp最新 | 亚洲午夜精品久久久久久app | 国产v片在线播放免费观 | 色网站在线视频 | 久久精品麻豆日日躁夜夜躁妓女 | 中文字幕熟女人妻伦伦在线 | 久久久久国产精品免费网站 | 欧美性xxxx极品高清3d | 女色综合 | 秋霞伊人| 2015天堂网| 17C丨国产丨精品入口永久地址 | 国产99久久久国产精品免费看 | 韩国精品一区二区三区在线观看 | 88av网站| 清晨被舔醒的NP小说 | 久久精品AV无码一区二区小说 | 国产精品久久久久久久久久久搜索 | 日本黄A级A片国产免费 | 区久久AAA片69亚洲 | 91精品国产亚洲爽啪在线观看 | 五月色婷婷综合开心网 | 国产v片在线观看 | 在镜头里被CAO翻了H | 免费国产成人午夜在线观看 | 中文字幕不卡视频 | 色百度网址大全 | 欧美一线a观看 | 日本特爽特黄特刺激大片 | 最近免费中文视频2018 | 亚洲A片不卡无码久久 | 亚洲巨乳日本无码一二三区 | 欧美精品无码一区二区三区老鸭窝 | 小SAO货边洗澡边CAO你 | 娇小娇小与黑人tubevideos | 日本免费无码A专区在线观看 | 久久精品99久久香蕉国产色戒 | 五月色综合网天天综合网 | 日韩欧美伦理 | 国产悠悠视频在线播放 | 狠狠色色综合网站 | 在线看片中文字幕 | 狠狠干天天 | 四虎影视影院免费观看 | 国产精品99在线观看 | 国产一级高清视频 | 国产精品色欲AV亚洲三区软件 | 精品人妻无码一区二区三区葡京 | 最新欧美人妖hdxxxx | 国产一区二区三区乱码在线观看 | 三级毛片免费 | 日韩高清免费观看 | 国产SUV精二区69 | 在线观看免费黄色小视频 | 国产另ts另类人妖 | 九九九久久久 | 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 | 德永千奈美快播 | 影音先锋全部av女资源 | 国产亚洲精品字幕在线观看 | 久久www成人看片 | 国产精品久久久久精 | www.欧美黄色| 国产视频a| 最新本道高清无码av | WWW色情成人免费视频软件 | 日韩亚洲欧美日本精品va | 黄色片免费网站 | 日韩在线观看视频免费 | 就要干| 午夜性色一区二区三区不卡视频 | 97在线观看在线观看 | 国产卡一卡二卡3卡4乱码 | 思思99re66在线精品免费观看 | 性欧美精品xxxx | 国产一级一国产一级毛片 | 中文字幕乱人伦视频在线 | 日日噜噜夜夜狠狠视频 | 亚洲视频自拍 | 日产乱码卡一卡2卡三卡四麻豆 | 手机在线国产精品 | 欧美黄色网络 | 久久久久久久国产精品影院 | 青草草在线观看免费视频 | 国产精品V无码A片在线看小说 | 好吊色青青青国产在线播放 | av在线观看 | 在线 丝袜 欧美 日韩 制服 | 欧美亚洲免费久久久 | 国产亚洲精品久久久久久白晶晶 | 中文字幕乱码熟妇五十中出 | 久久视频在线视频观看 99 | 艳妇臀荡乳欲伦1 | 神马电影dy888午夜我不卡 | 天美传媒免费观看 | 香港一级淫片高清视频 | 国产h视频在线观看高清 | 狼人 成人 综合 亚洲 | 欧美成人精品第一区二区三区 | 日本 欧美 国产 | 国产在线视精品在亚洲 | 天天干天天射天天操 | av蜜桃| 毛片视频网址 | 国产午夜福利100集发布 | 国产又粗又长又硬又猛A片 国产又大又粗又硬的A片 | 久久这里的只有是精品23 | fryee性欧美18 19| 免费日本视频 | 一区二区三区四区免费视频 | 国产黄色片91 | 激情偷乱人成视频在线观看 | 国产成人综合亚洲 | 欧美三级视频在线 | 色网站在线播放 | 日本啊啊啊视频 | 丰满熟妇被掹烈进入高清片 | 一级做a爱过程免费观看 | 色老头老太xxxxbbbb | 色综合成人网 | 波多野结衣系列在线 | 亚洲国产天堂久久精品网 | 日本调教网站 | 国产精品久久久久久亚洲影视 | 免费一级a毛片在线播放 | 高潮影院 | 日韩一级免费毛片 | 亚洲一区黄色 | 麻花传媒MD01 | 永久免费看啪啪网址入口 | 国产一区二区无码蜜芽精品 | 青青青国产在线手机免费观看 | 欧美极品欧美日韩 | 久久久一本波多野结衣 | 毛片自拍| 日韩精品无码久久一区二区三 | 一本久道综合在线无码 | va天堂va亚洲va影视中文字幕 | 日日麻批免费视频播放高清 | 伊人久久精品AV一区二区 | 亚洲精品久久久久中文字幕二区 | 国产亚洲日韩欧美视频 | 免费看黄页 | 五月激情综合婷婷 | 国产黄色片网站 | 国产WW高清大片免费看 | 狠狠干狠 | 伊人网在线视频 | 国产情侣久久精品 | 日韩色情无免费高清在线视频 | 亚洲v天堂 | 国产免费a | 黄到下面流水的爽文很污的情话 | 日本一道一区二区视频 | 伊人久久大香线蕉亚洲 | 精品国产VA久久久久久久冰 | 午夜影院一区二区 | 精品1区2区3区产品乱码 | 国产伦精品一区二区三区妓女下载 | 公交车上无耻挖阴 | 欧美97色伦影院在线观看 | 女色综合| 免费观看全黄做爰大片 | 成人妇女免费播放久久久 | 狠狠综合欧美综合欧美色 | 久久综合气久久狠狠狠97色 | J8又粗又硬又大又爽又长A片 | 双性受高H公车地铁公交 | 国内自拍视频在线观看 | 午夜一区欧美二区高清三区 | 婷婷四房播播 | 涩涩网站在线看 | 操女模特 | 又大又爽又黄无码A片小说 又大又硬又粗做大爽A片 | 婷婷日日夜夜 | 久久久网站亚洲第一 | 无码一区二区三区 | 久久精品美女 | 亚洲 欧美 唯美 国产 伦 综合 | 麻豆国产巨作AV剧情 | 综合五月天婷婷丁香 | 久久97精品久久久久久清纯 | 亚洲色婷婷久久精品AV蜜桃久久 | 六月伊人 | 班长坐在我的腿上娇喘 | 蜜桃传媒一区二区亚洲AV | 成人无码髙潮喷水A片 | 狠狠色噜噜狠狠狠狠色综合久 | 五月天婷婷综合网 | 小辣椒导航精品福利视频 | 夫妻性姿势真人做视频 | 亚洲综合色在线视频久 | 午夜伦理片 | 97精品国产高清在线看入口 | 午夜精品久久久久久久99 | 亚洲AV久久无码精品夜夜挺 | 日韩毛片高清免费 | 国产SUV精品一区二区五 | 视频一区国产 | 一个好妈妈7中字头强华驿 一二三影院 | 三级国产精品 | 亚洲色图在线观看视频 | 韩国伦理片网站 | 国语高清精品一区二区三区 | 欧美日韩国产另类一区二区三区 | 激情区小说区偷拍区图片区 | 美女下面揉出水免费视频 | 久草这里只有精品 | 久久香蕉影院 | 五月婷婷综合在线 | 大菠萝福利污下载APP | 香港黄页精品视频在线 | 精品无人区一区二区三区 | 这里只有精品在线观看 | 五月激情综合婷婷 | 国产免费无码又爽又刺激A片动漫 | 三男一女伦奷A片 | 久久国产精品高清一区二区三区 | 我和闺蜜在公车被cao污文 | 丰满人妻妇伦又伦精品APP国产 | 看看色播 | 69精品国产久热在线观看 | 午夜4k最新福利 | 国产电影一区二区三区爱妃记 | 亚洲欧美偷拍视频一区 | 日韩精品在线视频观看 | 免费 电影 | 精品无人码麻豆乱码1区2区 | 色情成人影院欧美激情 | 国产艳情熟女视频 | 年轻的馊子8HD中文字幕 | 女主床戏被进高H | 久久精品视频15人人爱在线直播 | 久久久久99 | 免费羞羞午夜爽爽爽视频 | 久久99精品久久只有精品 | 成人全黄三级视频在线观看 | 女日韩优在线 | 欧洲免费极品videos | 亚洲国产欧美另类 | 国产在线无码不卡影视影院 | 色婷婷基地 | XX色综合 | 亚洲最大天码AV在线观看 | 免费久久精品 | 2021国产成人综合亚洲精品 | 少妇高潮无套内谢 | 欧美日韩精品高清一区二区 | 啊灬啊别停灬用力啊A片 | 久久精品夜夜春 | 亚洲AV國產国产久青草 | 总攻男主被C得合不拢腿 | 国产50岁熟妇露脸 | 婷婷综合亚洲 | 国产精品久久久久久日本一道 | 天天操天天干天天爱 | 欧美激情一区二区三区视频 | 三级毛片在线播放 | 综合自拍亚洲综合图区Av | 簧色女人bi图片大全 | 国产精品色无码AV在线观看 | hd成人免费电影 | 九一精品国产 | 亚洲4p | 欧美另类色图片 | 久久99精品久久久久久国产越南 | 亚洲精品久久久无码一区二区 | 中文字幕无码无卡视频 | 激情综 | 日产中文乱码字幕无线观看 | 很黄很肉很刺激的小说在线阅读 | A片A三女人久久7777 | 综合自拍亚洲综合图区Av | 欧美 亚洲 在线播放 | 秋霞伦理片看福利 | 一日本道伊人久久综合影 | 麻花传剧mv在线看高清 | 欧美日韩视频在线第一区二区三区 | 丁香视频在线 | 色欧美色| 2021国产成人综合亚洲精品 | 国产人妻人伦精品1国产 | 国产精品无码人妻99999 | 国产成人亚综合91精品首页 | 黄色毛片网站 | 97色五月 | 国内午夜免费鲁丝片 | 色婷婷综合缴情综六月 | 亚洲人成影院在线播放 | 欧美 xxxx18性欧美 | 国产欧美va欧美va香蕉在线观看 | 韩国片黄18以上在线观看 | 黑巨人与欧美精品一区 | 永久免费精品精品永久-夜色 | 图片区 日韩 欧美 亚洲 | 91网站在线免费观看 | 亚洲人成一区二区不卡 | 什么网站可以看毛片 | 色情无码WWW视频无码小说 | 麻豆高清免费国产一区 | 性生交大全免费看 | 九色欧美 | 黄网页在线观看 | 在线观看欧美一区 | 一级毛片免费在线播放 | 午夜影视在线视频观看免费 | 国产日韩高清一区二区三区 | 精品免费国产一区二区三区四区 | 国产97色在线 | 日韩 | 欧美精品一区二区黄A片 | 99久久无码一区人妻A片蜜 | 亚洲第一区二区快射影院 | 亚洲欧美中文日韩v在线 | 97福利视频精品第一导航 | 拔插拔插视频在线观看 | 天天干天天玩天天操 | 2021手机日本卡一卡二新区 | 精品在线播放 | 蜜桃精品AV无码喷奶水小说 | 丰满人妻无码AV系列 | 中文字幕在线视频免费 | 熟女视频一区二区在线观看 | 亚洲国产精品综合久久2007 | 亚洲成av人影院 | 国产婷婷午夜无码A片 | 国产小视频免费看 | 91po国产在线精品免费观看 | 最新中文字幕免费视频 | ACG里番全彩侵犯本子色情福利 | 日本精品不卡 | 色播五月激情五月 | 国产AV精品一区二区三区小说 | 黄色网址在线视频 | 中文幕无线码中文字蜜桃 | 坐在男人嘴上让他添在线视频 | 久久强奷乱码老熟女 | 欧美日韩在线观看区一二 | 精品国产人妻一区二区三区久久 | 美国三级在线观看 | 大奶肥臀| 国产精品夜夜春夜夜爽久久小说 | 亚洲日本香蕉视频观看视频 | 久久精品极品盛宴观看 | 天天色踪合 | 午夜精品久久久久久久久日韩欧美 | 欧美精彩狠狠色丁香婷婷 | 四虎2024最新免费观看 | 国产精品入口果冻 | 性配久久久| jizz国产精品网站 | 在线观看黄网 | 日本wwwwww| 高清性色生活片免费播放网 | 九九久久亚洲综合久久久 | 午夜精品射精入后重之免费观看 | 四虎免费在线观看 | 又硬又粗进去好爽A片 | 欧美97久久人人模人人爽人人喊 | 免费的又色又爽又黄的视频软件 | 免费观看又色又爽又黄的校园 | 成人片毛片A片免费观看欧美 | 四房播播网址 | 香蕉成人伊视频在线观看 | 日产精品乱码卡一卡2卡三 日产精品卡二卡三卡四卡乱码视频 | 亚洲一线二线三线品牌精华液久久久 | 花唇扒开(H)双性 | 成人乱码一区二区三区A片 成人乱人乱一区二区三区 成人区人妻精品一区二欧美毛片 | 色拍拍欧美视频在线看 | 午夜插插插| 亚洲精品国产一区二区三 | 高树玛利亚qvod | 99热这里只就有精品22 | 又大又爽又黄无码A片小说 又大又硬又粗做大爽A片 | 色婷婷激婷婷深爱五月小说 | 国内自拍区 | 娇喘潮喷抽搐高潮麻豆A片 娇喘呻吟欲仙欲死的娇妻 娇妻被朋友玩得呻吟在线电影 | 国产精品原创永久在线观看 | 国产免费不卡v片在线观看 国产美女一级做视频爱 | 日韩精品免费一区二区 | 德永千奈美快播 | 男人午夜免费视频 | 国产美女视频免费观看的网站 | 国产精品无码一区二区在线A片 | 里番本子侵犯肉全彩A片视频一区 | 最近最新中文字幕大全高清版 | 夭天干天天做天天免费看 | 欧亚乱色熟一区二区三四区 | 日本高清视频在线无吗 | 骚宝宝把我夹射好不好?年上 | 亚洲午夜网站 | 蝌蚪在线播放视频 | 老司机深夜福利在线观看 | 国产午夜高潮熟女精品AV | 三级色网 | 国产欧美一区二区精品仙草咪 | 国产精品系列在线观看 | 乌龙院1国语免费完整版 | 国产精品亚洲欧美动漫卡通 | 视频色www永久免费 视频黄页在线观看 | 99se亚洲综合色区 | AV天堂午夜精品一区二区三区 | 国产真人无码AV在线观看APP | 成年福利片在线观看 | 荡翁乱妇小说 | 精品人妻无码一区二区三区GIF | 色婷婷欧美在线播放内射 | 亚洲男人片片在线观看 | 国产九九视频在线观看 | 将军边走边挺进她H树林 |