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

explorar

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

wpzbg

11 Oct 2025(atualizado 11/10/2025 às 00h07)

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

Temas

Compartilhe

Watch_Spinosaurus_fierce_fight_for_food_and_survival.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 jogo da vida de roletaits simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadcasting CorporationRegisterSign InHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveHomeNewsIsrael-Gaza WarWar in UkraineUS & CanadaUKUK PoliticsEnglandN. IrelandN. Ireland PoliticsScotlandScotland PoliticsWalesWales PoliticsAfricaAsiaChinaIndiaAustraliaEuropeLatin AmericaMiddle EastIn PicturesBBC InDepthBBC VerifySportBusinessExecutive LoungeTechnology of BusinessFuture of BusinessInnovationTechnologyScience & HealthArtificial IntelligenceAI v the MindCultureFilm & TVMusicArt & DesignStyleBooksEntertainment NewsArtsArts in MotionTravelDestinationsAfricaAntarcticaAsiaAustralia and PacificCaribbean & BermudaCentral AmericaEuropeMiddle EastNorth AmericaSouth AmericaWorld’s TableCulture & ExperiencesAdventuresThe SpeciaListTo the Ends of The Earth EarthNatural WondersWeather & ScienceClimate SolutionsSustainable BusinessGreen LivingAudioPodcast CategoriesRadioAudio FAQsVideoLiveLive NewsLive SportHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherNewsletters'Its strength is its simplicity': The benefits of cleaning with vinegar24 April 2025ShareSaveKatarina ZimmerShareSaveGetty Images(Credit: Getty Images)Katarina Zimmer put vinegar to the test as a cleaning product and discovered a wide range of benefits, for people and the planet.A few months ago in my new Berlin apartment, my toilet and I were at war. No amount of scrubbing or toilet cleaner would evict the limescale coating inside. Frustrated, I turned to Google and stumbled across a page recommending vinegar – something that the previous inhabitant had left behind in abundance. After dropping two tablespoons full of "Essigessenz" – essentially concentrated vinegar – into the toilet and waiting for half an hour, I scrubbed and the limescale came off in a moment. Since then, I've enthusiastically used vinegar to rid my world of limescale. I've found it even more effective than my regular kitchen spray cleaner for getting my sink sparkling. That includes the faucet, which I wrapped in a vinegar-soaked kitchen tissue – whereas my regular cleaning spray dribbled off. And rather than having to buy special tablets to clean my limescale-smothered glass kettle, I simply poured two tablespoons of concentrated vinegar inside and boiled it. As the limescale crackled off, it made a satisfying sizzling sound.I wondered if vinegar had other advantages. Did it also kill off bacteria and other germs? And, importantly, was this simple, natural product better for the environment and for my health than regular cleaning products? The internet is full of sustainability influencers and green cleaning blogs that advertise vinegar as a jack-of-all-trades and a safer and "greener" alternative to "toxic" cleaning products. These claims make sense on the surface; vinegar is after all just fermented alcohol and has long been used as a food preservative, in salad dressings, as well as a household cleaner – but I wanted evidence. After interviewing three experts, I learned that while some of these claims are true, the benefits of vinegar depend a lot on how it's used and the kind of grime you're trying to get rid of.Getty ImagesLimescale dissolves more easily in acidic fluids like vinegar (Credit: Getty Images)Reassuringly, Eric Beckman, a chemical engineer and emeritus professor at the University of Pittsburgh in Pennsylvania, told me that the best cleaning use for acetic acid – the main component of vinegar – is exactly what I had been using it for: as a descaler. Limescale – and rust, for that matter – consists of certain ions that dissolve more easily in acidic fluids like vinegar, he says. Beckman uses vinegar himself to get limescale off mirrors, while the microbiologist Dirk Bockmühl of Germany's Rhine-Waal University of Applied Sciences prefers using lemon juice, which contains citric acid, which he says is a more effective descaler and smells better. (Read more about why vinegar is such an effective cleaner.)That said, vinegar doesn't work on everything. Beckman says that soap does a better job at removing oily films on dishes, while baking soda is effective against processed oils that have stuck onto surfaces while cooking. (Read more about whether baking soda is environmentally friendly).However, Beckman expresses exasperation about a popular remedy of mixing vinegar together with baking soda. The mixture is chemically quite useless, he says, as the acid of vinegar and the base of baking soda effectively cancel each other out. "I use both, but not together," says Beckman. "Together, they give you nothing."   And while vinegar is often touted as a powerful antimicrobial, Bockmühl says, the truth is more nuanced. In a 2020 study, Bockmühl and his colleagues put vinegar to the test against a selection of disease-causing bacteria, viruses and fungi. While many internet recommendations suggest adding a dash of vinegar into a bucket of water for cleaning, Bockmühl found that its anti-microbial effects only kick in at an acetic acid concentration of 5% – its concentration in pure vinegar. And it was only fully effective at distilled concentrations of 10%  – to which the researchers added a dash of citric acid – in killing off five common bacteria, including Escherichia coli and Staphylococcus aureus, as well as a mould, a yeast and a weakened strain of the vaccinia virus. Other studies have found that similar concentrations also work against Sars-CoV-2, the virus that causes Covid-19.  But even these concentrations didn't work against the MRSA bacterium, an especially stubborn strain of Staphylococcus aureus that's resistant to certain antibiotics, while countless bacteria remain untested. Many bacteria – including the ones that ferment alcohol into vinegar – thrive in acids, Beckman adds: "Then they'll be like, 'ooh, yay, vinegar.'" Some moulds, too, are resistant to acetic acid while some viruses – like norovirus – might be, too, Bockmühl suspects. Beckman says that soaps are more effective against bacteria, while standard disinfectants work better against viruses and moulds. Harsh treatments like bleach will definitely kill everything, Beckman says – although bleach can be unsafe if used incorrectly.Getty ImagesVinegar is less effective against processed oils that have stuck onto surfaces during cooking (Credit: Getty Images)Bockmühl stresses that, even for the germs that vinegar does kill, a relatively high concentration is needed. The concentration won't be adequate "if you just put a teaspoon of vinegar into your cleaning solution", Bockmühl says. However, the higher the dose of acetic acid, the more irritating it can be on the skin, he adds. It is harmful if it gets into your eyes. Surfaces can suffer, too: vinegar corrodes natural stone and metals like copper, bronze and brass, according to the Italian chemist Dario Bressanini's book The Science of Cleaning. And in dishwashers or washing machines, it can harm the rubber gaskets used to seal them, while it could also damage coffee machines and strip away the coating on tiles and grout, Bressanini writes. But Bockmühl assures me that it's fine to use vinegar on glass and ceramic surfaces – like my toilet – and stainless steel sinks.The trouble that Bockmühl sees with using homemade cleaning products is that they don't come with instructions or safety recommendations. "They might be safe if you know what you're doing," he says, "but there are a lot of really stupid and absurd recommendations on the internet".More like this:? Are you cleaning your water bottle enough?? Why you might want to change your bedclothes more often? Seven proven ways to help the planet in 2025 To learn more about how the health risks of vinegar compare with those of conventional cleaners, I called up Nicola Carslaw, professor of indoor air chemistry at the University of York in the UK. Her concern is how cleaners disrupt the air in our homes and buildings. It's known that professional domestic cleaners tend to have higher rates of asthma than other occupational groups, although it's proven difficult to pin that on any single product or ingredient.In a recent study, Carslaw and her colleagues tested 23 different cleaning products including dishwasher fluid, washing up liquid and spray products, and found that many of them released volatile chemical compounds (VOCs). Some of these compounds, like terpenes, are often added to give pleasant aromas, such as lavender or pine oil, but they're highly reactive in the atmosphere. Terpenes for instance, easily react with ozone in the air, creating miniscule particles. In general, inhaling particles of this size has been linked to lung and heart disease."Your nose is a really good filter for the big particles, but the smaller ones can get all the way into your lungs [and] into the bloodstream," Carslaw says. Interestingly, in her study she found that cleaning products marketed as "natural" or "green" didn't seem any healthier in this regard. "The natural/green ones had as many, if not more VOCs as the standard cleaners, and in many cases they were more reactive," she says.Vinegar passes muster on any sustainability scale because it's simple and it's degradable – Eric BeckmanBut vinegar, by contrast, only consists of water and acetic acid (and a few other substances that make the difference between red and wine vinegar, for instance). As such, "it's just not going to be chemically reactive in the same way", Carslaw says. Another advantage of vinegar is that it's usually applied on a cloth to wipe surfaces rather than used as a spray, Carslaw adds. Research shows that cleaning products applied in spray form have more harmful effects on the respiratory system than liquids and wipes. (Read more about the health risks associated with cleaning products in Jessica Bradley's story). "When you spray something, you're turning the chemical into a form that's much easier to breathe [in] than if you have the liquid," Carslaw says. That said, she always advises gloves when there's risk of skin contact, good ventilation and avoiding excessive cleaning, whatever product is used. (Read more about whether we're cleaning too much for our own good).Getty ImagesVinegar quickly breaks down and therefore its environmental impact is low (Credit: Getty Images)This all left me with one remaining question: is using vinegar more environmentally friendly than conventional cleaners? That's a hard question to answer, says Beckman. Ideally, there would be life cycle analyses for cleaning products which track impacts from cradle to grave, tracing each ingredient back to its source, how it's produced, transported, packaged and eventually disposed of. But very few companies do that thoroughly, even if they do brand their products as "green", Beckman says. "But I will say this about vinegar. [Its] strength is its simplicity," Beckman says. Conventional cleaners can consist of more than a dozen different ingredients, many of them industrially manufactured in energy-consuming processes, he says. Acetic acid is born through the natural, yeast-driven fermentation of alcohol, which itself comes from the natural fermentation of sugar. The biggest environmental impact of vinegar-making is where the sugar came from – whether it's grapes, apples, grains, potatoes, or rice – which are largely renewable resources. Bockmühl cautions that this only applies to naturally fermented vinegars, the ones typically sold as food products; there are also synthetic vinegars which are derived from fossil fuels, meaning they come with all the environmentally harmful impacts of oil and gas extraction.  Even at the very end of its life, vinegar has little impact. While many ingredients in soaps are tough molecules and don't easily biodegrade, sometimes continuing to kill organisms once they're in the environment, vinegar quickly breaks down, Beckman says. "Vinegar passes muster on any sustainability scale because it's simple and it's degradable," he says. After discovering all of this, I felt even better about using vinegar. I probably won't rely on it for ridding my surfaces of germs, but I'll keep using it to remove limescale and look forward to trying it out on the next rusty item I find. I'm happy to put up with the smell, knowing that I'm using a sustainable product that's likely better for my health. --For essential climate news and hopeful developments to your inbox, sign up to the Future Earth newsletter, while The Essential List delivers a handpicked selection of features and insights twice a week.For more science, technology, environment and health stories from the BBC, follow us on Facebook, X and Instagram.EarthSustainability on a ShoestringHygieneHealthSustainabilityEnvironmentClimateScienceFeaturesWatchExplaining how a touchscreen works with a sausageBritish mathematician Hannah Fry digs into the science of touchscreens.4 Aug 2025ScienceSeven images that transformed our world viewWatch how the maps and images of our planet from above have changed over the last two millennia.30 Apr 2025EarthTen striking images of an Earth scarred by humansFrom a shipwrecking yard in Bangladesh to a river of iron dioxide in Canada, a deep dive in Ed Burtynsky's work.16 Apr 2025EarthWhat's inside a black hole?Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.9 Apr 2025ScienceUsing bubbles to remove forever chemicals from our waterBBC Click visits a UK research team working on a solution to remove toxic chemicals known as PFAS from water.27 Mar 2025ScienceHow sex with Neanderthals changed us foreverWe find out what we gained when Homo sapiens mated with Homo neanderthalensis many thousands of years ago.18 Mar 2025ScienceTheory of Evolution: How did Charles Darwin come up with it?The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.12 Feb 2025ScienceRaja the elephant asking for a road tollIn Sri Lanka, a charming elephant cheekily halts traffic for treats. 29 Jan 2025EarthInside the hidden world of rhino romanceWatch two rhinoceroses involved in a game of 'kiss and chase'.24 Jan 2025EarthThe power of hugs for reducing inflammation in the bodyDr. Lisa Dahlgren discusses the effect human touch has on our health and wellbeing.22 Jan 2025HealthA mother tiger on a fierce hunt to feed her cubsWhile her three offspring take a leisurely bath, this Bengal tiger mother must find food for the entire family.16 Jan 2025EarthHow foxes outsmart world's heaviest raptor in quest for foodWatch red foxes challenge the Steller's sea eagle, the world's heaviest raptor, as they search for food in Japan.8 Jan 2025EarthHomo juluensis: Possible 'new ancient human' identifiedResearchers may have identified a new human species that lived around 300,000 years ago in Asia.6 Jan 2025ScienceMum saves baby seal with a clever trickWatch as David Attenborough reveals the unique behaviour of a mother seal to protect her pup in icy waters.31 Dec 2024EarthHow Arctic communities protect themselves from avalanchesBBC Click finds out how local communities in Svalbard use technology to combat avalanches and heavy snowfall.31 Dec 2024ScienceMountain goats: A death-defying battle to mateWatch the world's largest species of goat fight for the right to mate, teetering on the edge of perilous drops.17 Dec 2024EarthThe near miraculous escape of a cave swiftThe Tam Nam Lod Cave is home to over a quarter of a million swifts. But there are hidden dangers.12 Dec 2024EarthMeet the mudskipper: The remarkable fish that lives on landThe mudskipper is a fish that can leap with a flick of its tail. Watch a particularly agile specimen in action.3 Dec 2024EarthWatch the dramatic escape of tiny fish from deadly sharksThe Moorish idol, a dramatic little fish with dazzling stripes, adopts a clever strategy to save its life.27 Nov 2024EarthEarth tides: Why our planet's crust has tides tooHow do they differ from the ocean? A geophysicist breaks it down for us.28 Sep 2024Weather & scienceMore from the BBC3 hrs agoFarmer, 37, dies after missing out on new treatment Robin Elcock was unable to access new treatment for brain tumours as he did not have the necessary tissue.3 hrs ago4 hrs agoDementia suits show how tricky daily tasks can beThe simulation suits are helping health staff understand the frustration patients face every day.4 hrs ago4 hrs agoBlood cancer treatments come on 'leaps and bounds'A Wiltshire woman, who is now in remission, says new treatments are also much gentler on the body. 4 hrs ago8 hrs agoPostcode lottery for new cancer treatments, doctors warnExperts say bureaucracy is "stifling innovation" and that applying for funding to pay for new treatments can be "cumbersome".8 hrs ago8 hrs agoDr Xand: Stress is normal. Here's how to manage it betterStress, in small doses, can be good for us. Here are five simple, science-backed ways to manage it better. 8 hrs agoBritish Broadcasting CorporationHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherBBC ShopBritBoxBBC in other languagesFollow BBC on:Terms of UseAbout the BBCPrivacy PolicyCookiesAccessibility HelpContact the BBCAdvertise with usDo not share or sell my infoBBC.com Help & FAQsContent IndexCopyright 2025 BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. 

NEWSLETTER GRATUITA

Nexo | Hoje

Your_pictures_on_the_theme_of_monochrome_.txt

We_cant_watch_back_our_slot_on_Eurovision.txt conhecimento e os enciclopédia abrangente.

GRáFICOS

nos eixos

'It's like being in a farm from outer space'.txt

Watch_How_the_Trump-Putin_summit_unfolded_in_under_2_minutes.txt enciclopédia e os explorar enciclopédia.

Navegue por temas

Watch_How_the_Trump-Putin_summit_unfolded_in_under_2_minutes.txt Watch_the_UKs_last_Victorian_steam_mill_in_operation.txt Watch_Twin_waterspouts_merge_near_Italian_coastline.txt Watch_dramatic_moment_monkey_family_defends_baby_from_python.txt Watch_Moment_avalanche_is_triggered_by_explosives_in_New_Zealand.txt Watch_Key_moments_from_Chinas_military_parade.txt Watch_Key_moments_from_RFK_Jrs_heated_Senate_hearing.txt Watch_NASA_and_SpaceX_launch_crew_to_the_ISS.txt Watch_rare_Gobi_bears_reaction_to_finding_water.txt Watch_Russian_volcano_erupts_after_500_years.txt
中文字幕在线不卡视频 | 色一情一乱一伦一区二区三区 | 久久五月天婷婷 | 在线亚洲精品国产一区麻豆 | 国产色XX群视频射精 | 精品婷婷乱码久久久久久日日 | 欧美成 人 网 站 免费 | 在线免费看黄网站 | 五月天婷婷在线观看高清 | 成人超级碰碰免费视频 | 晓雪老师我要进你里面好爽 | 亚洲国产精品色情777777 | 人妻AV久久一区波多野结衣 | 日本一区三区二区最新 | 麻豆影视国产TV在线观看 | 久久不卡视频 | 日本私人vps高清在线观看 | 中文字幕日韩在线观看 | 级R片内射在线视频播放 | 啪啪免费视频在线观看 | 美女大战巨茎黑人 | 97视频福利 | 91免费视 | 国产成人十八黄网片 | 亚洲精品国产SUV | 午夜看片免费 | 日本在线不卡免费视频 | 久久久久久久久久久久久久久久久久久久 | 国产高清免费观看 | 色综合伊人色综合网站 | 国产一区二区三区影院 | 国产真实乱人偷精品人妻 | 麻豆一区产品精品蜜桃的广告语 | 激情综合五月开心婷婷 | 三级免费毛片 | 嗯啊抵在墙上H失禁受男男 嗯啊灬别停啊灬用力灬快 嗯啊快拔出来我是你老师 嗯啊在线观看 | 蜜臀91精品国产高清在线观看 | 国产偷窥熟妇高潮呻吟 | 欧美久久久无码精品亚洲日韩小说 | 99精品视频在线观看 | 日韩一级视频在线观看播放 | 四虎必出精品亚洲高清 | 久久精品av | 午夜DJ国产精华日本无码 | 欧美人与zoxxxx视频 | 777爽死你无码一区二区 | 久久视频在线视频观看99 | 成年福利片在线观看 | 久久伊人中文字幕 | 麻豆高潮AV久久久久久久 | 99久久精品免费看国产漫画 | 国产三级视频在线 | 色妇视频 | 日韩精品第一区 | 成熟交BGMBGMBGM在线看 | 久久免费视频精品在线 | 久久96国产精品久久久 | 青草热久精品视频在线观看 | 亚洲va在线va天堂va手机 | 视频一区免费 | 亚洲欧美日韩中文综合v日本 | 日本最黄网站 | 天堂√在线中文资源网 | 欧美一区视频 | 亚洲国产成人久久精品动漫 | 视频一区 中文字幕 | 在线观看欧美一区 | yy啪啪啪视频 | 亚洲精品久久区二区三区蜜桃臀 | 麻豆国产| 麻豆文化传媒官方网站 | 奇米影视一区二区三区 | 日韩视频大全 | 亚洲精品成人无码A片在线 亚洲精品1卡2卡三卡4卡乱码 | www日本在线观看 | 欧美性色xo影院在线观看 | 中文字幕日本最新乱码视频 | 修理工厨房侵犯人妻系列国产 | 日韩欧美二区在线观看 | 在线亚洲精品福利网址导航 | 韩国理论片中文线播放最新 | 日韩一区二区三区视频在线观看 | 亚洲一级毛片视频 | 亚洲精品色情APP在线下载观看 | 网红思瑞一区二区三区 | 亚洲欧美日韩中文在线制服 | 尹志平吮小龙女乳 | 久久久综合香蕉尹人综合网 | 国产精品99精品久久免费 | 新版天堂资源在线官网8 | 色欲AV久久人妻蜜臀绯色 | 国产入口在线观看 | 帅哥摸舔美女全身视频 | 免费看黄的网站在线看 | 午夜性啪啪A片免费播放 | 直接看毛片 | 亚洲男人天堂网2014av | 色四播播| 国产无码av | 国产精品对白刺激久久久 | 中文字幕奈奈美被公侵犯 | 久久久综合九色合综国产 | 秋霞成人国产理论A片 | 国产女人毛片好多水 | 国产精品乱码人妻一区二区三区 | 欧美精品v欧洲精品 | 日韩不卡手机视频在线观看 | 色先锋 | 色宅男午夜电影网站 | 精品精品国产理论在线观看 | 比较刺激的H公共场合小说 边吃奶边狠狠躁日韩A片 | 欧美一区二区视频在线观看 | 色点的小说 | 日韩精品一 | 天天做夜夜做久久做狠狠 | 上司揉捏人妻丰满双乳电影 | 91久久青青青国产免费 | 天天操天天干天天插 | 亚洲国产成人在人网站天堂 | 国产精品丰满人妻AV麻豆 | 巜隔壁放荡人妻bd高清 | 狠狠躁天天躁小说 | 伊人日日夜夜 | 日本 影院| 国产在线精品一区二区在线看 | 久久精品视频在线看99 | 成年18网站免费视频网站 | 国产精品艺校美女校花在线 | 无限看片的动漫视频在线观看 | WW.国产人妻人伦精品 | 欧洲亚洲精品 | 三a毛片 | 嗯好舒服嗯好猛嗯好大不要 | 亚洲精品一区二区三区婷婷月色 | 日韩午夜网站 | 24小时更新视频在线观看免费 | 雨天车站H肉动漫在线观看 玉女jy荡小说 | 色情成人吃奶激情视频在线播放 | 亚洲第一国产 | 国产情侣一区二区 | 亚欧视频在线观看 | 国产熟睡乱子伦视频在线观看 | 日本少妇内射视频播放舔 | 在线观看免费国产成人软件 | 亚洲天天做日日做天天看2018 | 在线视频你懂 | 久99久热只有精品国产99 | 一级片网站在线观看 | 伊人影院亚洲 | 91热久久免费频精品黑人99 | 激烈娇喘叫床声床震爽文 | 欧美韩国日本一区 | 在线观看网站黄色 | 国产日韩精品一区二区三区在线 | 日韩精品亚洲专在线电影 | 欧美午夜精品A片一区二区HD | 伊人久久99 | 激情小说综合网 | 成人免费www在线高清观看 | 精尽人亡乱肉合集乱500小说 | 码A片国产精品18久久久... | 污视频软件app下载 污视频下载 | 国产AV电影区二区三区曰曰骚网 | 香蕉久久国产AV一区二区 | 打开美人妻的两腿 | 欧洲亚洲精品A片久久99动漫 | 欧美日韩高清不卡一区二区三区 | 国产又黄又猛又粗又爽的A片 | 亚洲高清国产拍精品动图 | 精品久久久久久久无码久中文字幕 | 国产精品第一综合首页 | 日本毛片免费韩国 | 激情六月| 完美世界动漫在线视频免费观看 | 国产艳情熟女视频 | 欧美成人精品一区二区免费 | 精品成人一区二区 | 日日夜夜天天干 | 最刺激的乱l仑小说 | 在线影视网站 | 国产第一综合另类色区奇米 | 97精品国产综合久久 | 日本色网址 | 久久AV亚洲精品一区无码 | AV性色AV久久无码AI换脸 | 免费观看情趣v视频网站 | 中文字幕一区二区在线播放 | 日韩精品射精管理在线观看 | 黑人肉大捧进出全过程动态 | 成人午夜AV亚洲精品无码网站 | 人妻被粗大猛进猛出69国产 | 日本高清视频色wwwwww色 | 久久久久久久一线毛片 | 欧美又粗又长又爽做受 | 啊灬啊灬高潮来了视频直播A片 | 最近免费的中文字幕一 | 伊人久久国产免费观看视频 | 狼人社区 | 国产九九精品 | 久久精品1 | 亚洲人成影视 | 亚洲视频aaa | 久久免费手机视频 | 青青草免费国产线观720 | 强被迫伦姧惨叫小说 | 久久国产精品视频 | 天天久久综合网站 | 国产成人无码免费看片色哟哟 | 希岛爱理中文字幕 | 日本亚洲精品久久蜜臀 | 97久久国产露脸精品国产 | 国产国产东北刺激毛片对白 | 无码精品一二三四区A片 | 国产人妻XXXX精品HD | 色柚视频网站ww色 | 无人视频在线观看视频高清视频 | 少妇饥渴放荡的高潮喷水 | 色播在线播放 | 性一交| 国产精品1区在线播放 | 欧美一卡2卡3卡4卡 免费 | 又硬又粗进去爽A片免费无码 | 中文字幕手机在线观看 | 99精品久久久久久国产人妻 | 99久热这里精品免费 | 欧美牲交A欧美牲交VDO | 一本一道日韩一二三四区免费 | 青草国产| 韩日午夜在线资源一区二区 | 免费无码不卡 | 国产精品一区二区AV交换 | 欧美精品第欧美第12页 | 亚洲精品久久国产高清小说 | 久久免费视频在线观看6 | 日本无码熟妇人妻在线视频免费看 | 看亚洲a级一级毛片 | 国产极品JK白丝喷白浆在线观看 | 国产喂奶300部 | 久久网免费视频 | 日韩欧美综合AV久久一区 | 在线看片av以及毛片 | 成人色网 | 国产天天在线 | 帝王被大臣们调教高肉 | 久久免费精品高清麻豆 | 美女天天干 | AV天堂午夜精品一区 | 大尺度做爰视频吃奶WWW | 1024国产欧美日韩精品 | chinese国产乱在线观看 | WWW国产成人免费观看视频 | 日本wwwxx爽69护士 | 99综合网 | 国产成人一区二区三中文 | 国产香蕉97碰碰久久人人 | 再深点灬舒服灬受不了了视频 | 欧美日日干 | 班长坐在我的腿上娇喘 | 精品久久伦理中文字幕 | 50-60岁老妇女一级毛片 | 香港三级日本三级a视频 | 2024天天拍拍天天爽视频 | 亚洲国产成人综合精品 | 亚洲精品久久久午夜麻豆 | 桃花族地址thzhdinfo | 日韩欧美一区二区三区在线 | 强伦姧人妻日韩A片 | 久热国产vs视频在线观看 | 国产日韩欧美一区二区三区在线 | 香蕉成人啪国产精品视频综合网 | 成年必看视频在线观看 | 欧美一区二区三区视频在线 | 91国内外精品自在线播放 | 欧美日本一区二区三区 | 亚洲 欧美 视频 手机在线 | 国产又黄又湿又刺激不卡网站 | 亚洲精品国产第一区第二区 | 国产亚洲精品久久久久久国 | 欧美色综合高清视频在线 | 最近最新中文字幕MV在线1 | 草逼网址 | 亚洲精品久久久久久中女字幕 | 91黄色影院 | 91在线视频免费 | 一级一级女人18毛片 | 诱人的女邻居9中文观看 | 秋霞伦理电院韩日 | 天天干天天操天天碰 | 亚洲最大天码AV在线观看 | 少妇内射视频播放舔大片 | 99好久被狂躁A片视频无码刻晴 | 中国精品久久精品三级 | 亚洲a在线视频 | 国产精品户露AV在线户外直播 | 国产天美 | 午夜伊人网 | 免费无码A片一区二三区 | 久久久久久噜噜噜久久久精品 | 久久这里只有是精品23 | 久久dj视频| 少妇被粗大的猛烈进出A片久久久 | 日韩精品欧美在线视频在线 | 在线免费观看毛片网站 | 欧美一级免费在线观看 | 久久99精品久久久久久h | 成熟iphone69 | 国产精品天干在线观看 | 色你妹gif动态图片 色哦色哦哦色天天综合 | 2021日日摸夜夜添夜夜添影院 | 五月欧美激激激综合网色播 | 欧美白人黑人xxxx猛交 | 激情综合五月开心婷婷 | 诱受H嗯啊巨肉舍友1V1 | 免费国产成人18在线观看 | 2021手机日本卡一卡二新区 | AV午夜久久蜜桃传媒软件 | 菠萝蜜BLM新区口 | 影音先锋女人AA鲁色资源 | 国产一二三精品无码不卡日本 | 少妇又大又粗又硬啪啪小说 | 国产免费又黄又爽又色的小说 | 国产一级二级 | 一百款流氓软件免费下载安装 | 亚洲欧美在线观看 | 色午夜影院 | 啪一啪射一射2024 | 成人免费AA片在线观看 | 国产免费无码又爽又刺激A片小说 | 丝瓜污视频 | 久久精品视频免费看 | 男男开荤粗肉NP快穿 | 精品无码国产一区二区日本 | 日韩精品 欧美 | 毛片网站免费 | 人妻无码AV中文系统久久免费 | 97任你碰任你摸任你爽 | 色一情一乱一伦一区二区三区 | 好屌草这里只有精品 | 国产自在线观看 | 久久免费视频6 | 97任你碰任你摸任你爽 | 国产亚洲精品品视频在线 | 欧美视频在线观 | 国产成人AV大片大片在线 | 青青青国产精品免费观看 | 亚洲精品一区二区三区麻豆 | 麻花传媒app | 亚洲精品蜜桃AV久久久 | 久久久99品牌的特色产品 | 国产精品乱码色情一区二区视频 | 亚洲精品国产高清不卡在线 | 亚洲欧美日韩v中文在线 | 天天色天天射综合网 | 国产一区二区精品在线观看 | 在线亚洲精品国产一区麻豆 | 国产免费啪嗒啪嗒视频看看 | 色婷婷五| 成人国产精品一级毛片视频 | 亚洲精品色情APP在线下载观看 | 国产精品呻吟AV久久高潮 | 国产成人AV一区二区三区无码 | 亚洲中文字幕无码一久久区 | 精品人妻无码日本一区二区三区 | 久久国产偷 | 香港黄页精品视频在线 | 最近中文字幕视频完整版在线看 | 柳文文被肉干高H潮文不断 擼一擼AV网站 | 国产精品第1页在线观看 | 亚洲 自拍 色综合图区 | 色呦色呦网站 | 亚洲精品久久片久久久久 | 欧美日韩福利视频一区二区三区 | 四虎影视在线看 | 中国毛片免费看 | 高清波多野结衣一区二区三区 | 久久久久久a亚洲欧洲aⅴ | 日日摸夜夜添夜夜添A片图片 | 日本一区色情无码视频在线观看 | 欧美日韩精品一区二区三区视频播放 | 肉乳乱无码A片观看免费 | 亚洲精品久久久久久动漫 | 免费看美女被靠的网站 | 国产一级高清视频免费看 | 受在寝室被多攻高H男男小说 | 92看看福利1000集合集免费 | 欧美牲交A欧美牲交VDO | 久久五月综合婷婷中文云霸高清 | 4房色播| 欧美乱妇高清正版在线观看 | 亚洲狠狠色丁香婷婷综合 | 一百款流氓软件免费下载安装 | 九九亚洲视频 | 男女做爰全A片免费的看 | 蜜臀AV久久国产午夜福利软件 | 精品亚洲日韩国产一二三区 | 五月婷婷开心中文 | 国产乱老熟妇吃嫩草 | 清晨被舔醒的NP小说 | 撸撸看电影| 无人影院在线播放视频 | 国产卡二卡三卡四卡免费网址 | 国产亚洲欧美高清在线 | 毛茸茸成熟亚洲人 | 国精品人妻无码一区二区三区性色 | 四虎影视www在线播放 | 99热久久这里只精品国产WWW | 日本免费在线观看视频 | 国产精品久久人妻无码网站蜜臀 | 欧美福利视频 | 日韩午夜片 | 四房播播 快播 | www.黄色在线| 青草资源视频在线高清观看 | 人妻无码AV系列久久电影 | 好爽好紧好大的免费视频国产 | 国产ts精品人妖系列 | 亚洲三级无码经典三级 | 2022国产精品福利在线观看 | 91制片厂制作果冻大象传媒 | 中国大陆一级毛片免费 | 日韩伦理电影秋霞影院 | 国产传媒在线观看视频免费观看 | 波多野结衣办公室在线观看 | 黄网址在线观看 | 2020好看的中文乱码字幕 | 久久久久久久国产精品 | 亚洲视频久热九色视频 | 国产伦精品一区二区三区妓女下载 | 亚洲精品色情婷婷在线播放 | 黄色网址视频在线播放 | 24小时更新视频在线观看免费 | 色天使色护士在线视频 | 久久88台湾三级香港三级 | 日本二区三区欧美亚洲国 | 麻豆A片爽爽歪歪爽爽视频看看 | 乱码精品一卡2卡二卡三 | 午夜视频www | 99精品国自产在线偷拍无码软件 | 成人国产精品免费软件 | 一二三区乱码不卡手机版 | 亚洲欧美日本久久综合网站 | 美女扒开胸罩露出奶头的动态图片 | 国产精品一级毛片不收费 | 翁公的粗大挺进小婷的咪 | 成人h视频在线 | 69国产成人综合久久精品 | 欧美3d怪物交videos网站 | 波多野结衣综合 | 风韵人妻丰满熟妇老熟女 | 六月婷婷在线 | 国产人成精品综合欧美成人 | 亚洲国产精品久久久久久 | 国产精品自在在线午夜蜜芽tv在线 | 免费阿v网站在线观看g | 九九综合VA免费看 | 国产乱来乱子视频 | 亚洲精品色播一区二区 | 中文字幕视频免费在线观看 | 四虎影永久地址在线 | 国产伦精品一区二区三区妓女下载 | 年轻丰满的继牳5伦A片 | 色婷婷国产熟妇人妻露脸AV | 国产精品人妻午夜福利 | 美女扒开尿口给男人捅 | 中文字幕在线视频观看 | 免费电影| 99国内偷揿国产精品人妻 | 伦理资源 | 我爱成人网 | 免费午夜无码无码18禁无码影院 | 老少交玩TUBE| 亚洲AV怡红院影院怡春院 | 伊人综合网 | 欧美午夜视频在线观看 | 日本高清无卡码一区二区久久 | 中文字幕A片视频一区二区 中文字幕亚洲乱码熟女在线 | 亚洲经典一曲二曲三曲 | 一夲道人妻熟女AV网站 | 国产一级一片免费播放i | 日本视频播放免费线上观看 | 久久国产露脸老熟女 | 国产精品最新资源网 | 做A爰片久久毛片A片的价格 | 囍色影院 | 欧美片第1页 综合 | 婷婷六月天激情 | 国产精品美女久久久网站动漫 | 韩国无删减| 五月色综合网天天综合网 | 日本中文字幕有码在线视频 | 亚欧精品一区二区三区四区 | 色翁荡熄又大又硬又粗又视频图片 | 中文字幕一区二区三区视频在线 | 九九自拍 | 欧美无人区码卡二三卡四卡 | 日韩一卡2卡3卡4卡乱码在线 | 欧美亚洲天堂网 | 中文字幕亚洲综合小综合在线 | 真实国产乱子伦精品一区二区三区 | 乌龙院在线观看免费观看完整版 | 五月天婷婷在线观看 | 国产人妻人伦精品久久无码 | 欧美性喷潮 | 国产美女流白浆的免费视 | 色综合色综合色综合色综合网 | 天天色操 | 強奷漂亮少妇高潮A片P夜夜嗨 | 国产一国产一级毛片视频在线 | 成年日韩片av在线网站 | 欧美乱偷在线 | 樱花树下未删减免费观看 | 97国产精品人妻无码免费 | 全部免费国产潢色一级 | 亚洲A片成人无码久久精品 亚洲A片不卡无码久久 | 专干老熟女A片 | 国产精品久久久久久久毛片 | 国产一级二级 | 古代级a毛片免费观看 | 五月天丁香婷婷开心激情五月 | 公用小荡货芊芊 | 内射女校花一区二区三区 | 日本亚洲精品久久蜜臀 | 色噜噜狠狠色综无码久久合欧美 | 四虎影视永久在线精品 | 免费毛片试看 | 无套内谢孕妇毛片免费看 | 色哟哟精品网站在线观看 | 国产熟女一区视频在线播放 | 欧美成人精品一区二区免费 | 国产精品电影久久 | 国产一区 在线播放 | 亚洲欧美日韩国产精品第不页 | 欧美亚洲另类丝袜自拍动漫 | 开心色播网网址 | 国产成人精品男人免费 | 丁香久久婷婷 | 日日噜噜夜夜狠视频免费 | 国产日韩精品欧美一区视频 | 亚洲国产专区校园欧美 | 护士交换做爰4 | 天天玩天天干 | 国产熟女内射OOOO | 久久九九亚洲精品 | 亚洲清纯自偷自拍另类专区 | 三级国产色情伦在线观看 | 牛牛在线(正)精品视频 | 日本亚洲免费无线码 | 韩国久久久久无码国产精品 | 久久精品亚洲热综合一本 | 91香蕉视频黄色 | 色情黄情亚洲 | 天堂岛WWW最新版在线资源 | 日本高清免费中文字幕不卡 | 免费看国产成年无码A片 | 色网站在线看 | 亚洲天堂资源网 | 农村岳用嘴帮我口 | 国产成人精品日本亚洲网址 | 亚洲成人免费 | 国产人妻精品区一区二区三区 | 国产日韩欧美一区二区三区综合 | 韩国伦理片网站 | 婷婷丁香九月 | 国产熟睡乱子伦视频在线观看 | 久久视频这有精品63在线国产 | 真实一级一级一片免费视频 | 久久毛片免费看一区二区三区 | 免费无码又爽又刺激A片小说 | 亚洲在线国产日韩欧美 | 欧美乱妇乱码大黄AA片 | 国产人妻XXXX精品HD | 国语熟妇乱人乱A片久久 | 国产免费久久精品99re丫y | 激情五月婷婷小说 | 五月天激情片 | 再深点灬舒服灬受不了了视频 | 国产成人久久精品推最新 | 国产目拍亚洲精品一区二区 | 国产黄色在线播放 | 校花岔开玉腿欲液横流 | 亚洲精品国产一区二区三 | 久久99国产精品久久99软件 | 欧洲美女人 一级毛片 | A片粗大的内捧猛烈进出AV | 人妻丰满熟妇V无码区A片免费看 | 欧美精品一区二区三区四区 | 少妇被猛烈进入A片 | 一级毛片免费下载 | 国产精品18久久久久久欧美网址 | 出差被公舔到高潮 | 巨大黑人极品vjdeo | 欧美一区二区三区红桃小说 | 午夜伦理电影在线观免费 | 贵州美女一级纯黄大片 | 丁香花视频免费播放社区 | 国产无遮挡色视频免费观看性色 | 守寡的岳引诱我岳潮湿的肥厚 | 人人射人人舔 | 草草免费观看视频在线 | 一个色成人导航 | 无码A片激情做爰视频在线观看 | 中文字幕在线观看网站 | 丰满老熟好大bbb | 国产人妻久久精品一区二 | 激情内射亚洲一区二区三区 | 国产区成人综合色在线 | 第一福利在线观看 | 成人a影片在线观看 | 色播影院性播影院私人影院 | 91精品福利一区二区三区野战 | 青青青国产手机在线播放 | 小小拗女一区二区三区 | 人妻体内射精一区二区三区 | chinese国产videos国语 | 欧美在线三级艳情网站 | 欧美日韩中文国产一区发布 | 西班牙一级特级毛片dvd | 日日麻批免费视频播放高清 | 国产AV亚洲精品久久久久软件 | 国产SUV精品一区二区69 | 99久久产在线 | 97精品视频在线观看 | 亚洲免费天堂 | 秋霞电院影伦理 | 久久精品国产99国产精品免费看 | 成人精品综合免费视频 | 日本一二三区在线视频 | 中文字幕在线观看网址 | 欧美色婷婷天堂网站 | 欧美日韩一区二区三区视视频 | 国产熟女一区视频在线播放 | 无码又爽又刺激A片涩涩动漫软件 | 色翁荡熄又大又硬又粗又视频图片 | 国产精品久久欧美一区 | 影音先锋av悠悠资源网 | jyzzjyzzz视频国产在线观看 | 欧美高h视频 | 夜夜噜噜噜 | 亚洲天堂网在线观看视频 | 免费一级国产大片 | 国产美女无遮挡裸体毛片A片 | 美女国产毛片A区内射 | 啪啪亚洲| 国99久9在线 | 免费 | 亚洲精品国产高清不卡在线 | 中国人xxxxbbbb国产 | 成年男人裸j免费网站 | 午夜福利电影 | 欧美一卡2卡三卡4卡公司 | 日韩欧美不卡在线 | 欧美一区二区三区高清不卡tv | 无码做爰在线观看 | 五月婷香| 久久精品国产72精品亚洲 | 狠狠爱亚洲五月婷婷av | 久久国产片| 5278欧美一区二区三区 | 亚洲国产中文在线二区三区免 | 国产乱码精品一区二区三区四川 | 激情无码人妻又粗又大又硬 | 黑人极品videos精品欧美裸 | 国产无遮挡成人免费视频网站 | 国产成人福利在线视老湿机 | 日日夜夜狠狠 | 蜜臀国产一区二区三区无码A片 | 日本黄色免费网站 | 国产91网址 | 成年人网站在线观看免费 | 日本亚洲一区二区三区 | 伊人久久综合成人亚洲 | 蜜芽地址永不失联2022 | 网站在线 | 欧美人与zozoxxxx另类 | 日韩一卡二卡三卡四卡免费观在线 | 亚洲精品乱码8久久久久久日本 | 午夜精品免费 | 亚洲国产日韩欧美一区二区三区 | 91福利小视频 | 手机在线日本亚洲欧美视频 | 中文人妻AV久久人妻水密桃 | 美女诱惑性感揉胸 | 伊人大蕉综合网站亚洲最大 | 日本理论片午午伦夜理片2024 | 成人免费电影网站 | 免费jizz在在线播放国产 | 国产精品乱码久久久久软件 | 动漫纯肉黄无码动漫日本 | 日本一区二区三区不卡在线视频 | 午夜无码伦费影视在线观看果冻 | 日本久久久久久久久久 | 久久草免费线看线看2 | 国产这里有精品 | 亚洲欧洲日韩另类自拍 | 亚洲一区二区三区在线视频 | 国产白拍 | wwww.xxxx日本| 影音先锋av色咪影院 | 秋霞网国产 | 99热99操99射 | 中文字幕简介 | 四虎最新紧急更新地址 | 黄网站在线观看视频 | HEZYO加勒比 一本高手机在线 | 成年人黄色片网站 | 少妇高潮灌满白浆毛片免费看 | 牛牛本精品99久久精品88m | 免费国产黄网站在线观看可以下载 | 四虎国产一区二区三区 | 亚洲精品区无码欧美日韩 | 99精品免费观看 | 无码高潮少妇毛多水多水免费 | 天堂网资源在线 | 国产精品久久久久影院色 | 国内精品免费 | 亚洲第六页 | 欧美精品无码一区二区三区老鸭窝 | 亚洲人成小说网站色 | 日日狠狠| 好好的日视频www | 精品人妻无码一区二区三区50 | 2024琪琪午夜理论电影网 | 国产99久一区二区三区A片 | 亚洲精品久中文字幕 | 婷婷五月色吧 | 中文字幕亚洲乱码熟女在线萌芽 | 四虎一区二区成人免费影院网址 | 色欲AV巨乳无码一区二区 | 91尤物国产尤物福利 | 欧洲无人区码SUV | 欧美牲| 国产国语一级a毛片高清视频 | 在线观看国产精选免费 | 国产免费一级片 | 中文字幕天堂在线 | 天天操天天干天天干 | 国产aaa免费视频国产 | 国产不卡在线视频 | 永久免费观看黄网站 | 免费一级毛片不卡在线播放 | 日本无码黄人妻一区二区 | 精品综合久久久久久99 | 哪里有毛片网站 | 国产寡妇性视频 | 波多野结衣国产精品 | 日韩三级在线观看 | 国产精品免费小视频 | 色情大尺度吃奶做爰在线观看 | 国产热久久精 | 精品国产乱码久久久久久小说 | 国产啪亚洲欧美精品无码 | 国产精品呻吟AV久久高潮 | 日韩色在线高清无码 | 色老头综合网 | 亚洲A片无码精品毛片 | 国产成人在线精品 | 两性午夜色视频免费网站 | 三级网站国产 | 中文字幕一区二区在线播放 | 色欲AV久久一区二区 | 亚洲色欲色欲WWW在线看小说 | 老师没戴套子C了我一天视频 | 久久99精品一区二区三区 | 真人做爰视频在40分钟 | 一区二区人妻精品无码A片 一区二区人妻无码欧美 | 我的公把我弄高潮了视频 | 久久精品A片20242024 | 亚洲永久精品日本无码 | 免费做爰猛烈吃奶摸视频在线观看 | 91尤物国产尤物福利 | 欧美巨乳勺A片 | 色秀视频免费网站在线观看 | 蜜桃色欲AV久久无码精品 | 再深点灬舒服灬太大了添A片小说 | 五月婷婷丁香久久 | 国产成人综合在线观看网站 | 欧美影片一区二区三区 | 泷泽萝拉快播地址 | 国产欧美日韩网站 | 国产香蕉97碰碰久久人人 | 日韩欧美视频一区二区在线观看 | 24小时更新视频在线观看免费 | 日韩精品第1页 | 日本午夜大片 | 国产宾馆自拍 | 精品爽爽久久久久久蜜臀 | 久久精品国产99久久72 | 草草影院在线播放 | 补课H湿 1V1 PLAY| 永久午夜福利视频一区在线观看 | 九一制片厂果冻传媒 | 色狠狠一区二区 | 乱人妻人伦中文字幕 | 欧美风情第一页 | 免费精品国偷自产在线读大二 | 高H公车全肉污文PLAYBL文 | 国产高清精品国语特黄A片 国产寡妇性视频 | 国产高潮呻吟无码精品AV | 亚洲国内自拍 | 麻生希 qvod 麻婆豆传媒一区二区三 |