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

kbr

13 Oct 2025(atualizado 13/10/2025 às 08h36)

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

Temas

Compartilhe

Sudan landslide Aid workers use donkeys to reach Tarasin village in Darfur .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 loteria federl de hojeits 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

Suspeitos de chefiar tráfico na Favela Moinho s?o alvos de opera??o do MP e da PM.txt foco e os entretenimento foco.

GRáFICOS

nos eixos

'There were days where I felt I could never leave' Intimate images of 'the real Hotel California'.txt

Starmer_to_meet_Israels_president_in_Isaac_Herzog_in_No_10.txt ponto quente e os foco conhecimento.

Navegue por temas

Spring_tide_swamps_Cleethorpes_fairground.txt Sudan conflict RSF accused of crimes against humanity over el-Fasher siege.txt Stormont_to_issue_unified_statement_on_racism_and_sectarianism_says_Lyons.txt Susana Werner se declara ao resgatar foto com Júlio César.txt S?o Paulo ultrapassa limite de atletas estrangeiros para competi??es nacionais.txt Suzano promove desenvolvimento sustentável em unidade no Cerrado Suzano Valor Econ?mico.txt Sudanese villagers dig with hands to reach landslide victims, group says.txt S?o Paulo tem alerta da Defesa Civil para tempestade, vento e granizo; veja onde.txt Steve Reed News.txt Supremo mantém pris?es de três suspeitos da morte de Marielle Franco.txt
自拍中文字幕 | 美女久久久久久久久久久 | 日本黄页免费 | 久久艳妇乳肉豪妇荡乳A片PY | 国产色女人 | 99精品视频在线观看免费 | 色多多成人版污污网站APP大全 | 国产日产欧产美韩系列影片 | XL上司在线完整版无马赛克 | 九九操视频 | 麻豆精品一卡2卡三卡4卡免费观看 | 免费国产精品丝袜 | 美女久久久久久久久久久 | 苍井空无高清码在线观看 | 四川一级片 | 婷婷综合另类小说色区 | 92人妻国产一区二区三区 | 亚洲AV综合色情区一区 | 亚洲欧美网 | 亚洲欧洲自拍拍偷 | 浴室里强摁做开腿呻吟的漫画 | 欧美日韩精品一区二区免费看 | 国产精品电影久久 | 小小拗女一区二区三区 | 天天操天天干天搞天天射 | 精品久久久中文字幕二区 | 精东麻豆 | 2022国产精品不卡a | 三级黄色一级视频 | 国产精品久久福利网站 | 国产电影一区二区三区爱妃记 | 成人在线免费视频 | 国产精品天天狠天天看 | 亚洲爱爱网 | 国产精品-区区久久久狼 | 91国在线产 | 日本无码人妻丰满熟妇5G影院 | 色欲AV亚洲情无码AV蜜桃 | 一个人看的在线www高清视频 | 精品在线播放 | 亚州 色毛片免费观看 | 欧美牲交A欧美牲交VDO | 比较刺激的H公共场合小说 边吃奶边狠狠躁日韩A片 | 狠狠的撸2016最新版 | 黄网址在线看 | 一级毛片免费下载 | 精产国品一区二区三产区 | 久久精品99国产精品日本 | 日韩免费一级a毛片在线播放一级 | 国产亚洲欧美视频 | 性一乱一交一A片视频 | 1769国产精品一区2区 | 爱的尸检报告 | 日本高清视频免费观看 | 亚洲欧美一区二区三区在线 | 国产精品三级在线 | 亚洲午夜精品A片久久WWW慈禧 | 国产91在| A片高潮抽搐揉捏奶头视频 A片高潮抽搐揉捏奶头视频在线看 | 久久黄色网址 | 国产av1插花菊综合网 | 2024四虎永久在线影院 | 一区二区中文字幕在线观看 | 阳茎伸入女人阳道视频 | 欧美日韩一日韩一线不卡 | 黄色片www | 国产精品A一区二区三区腾讯导航 | 美国三级在线观看 | 久久精品免费i 国产 | 欧美99热| 亚洲AV综合AV国产AV中山 | 曰曰摸天天摸人人看久久久 | 日本大胆色情高清视频 | 国产精品人妻99一区二区 | 乱码精品一区二区三区 | 国产在线观看www | 国产成人精品日本亚洲语言 | 少妇被躁爽到高潮无码麻豆AV | 亚洲无线一二三四区手机 | 91视频天堂| 狼狼鲁色在线视频播放 | 免费爱爱网址 | 九九久久国产精品大片 | 一本色道久久爱88AV俺也去 | 性视频网址 | 青草视频在线观看免费 | 69久久国产露脸精品国产 | 日韩精品无码一区二区免费A片 | 日本高清视频免费看 | 波多在线视频 | 爱色影音播放器下载 | 91欧美| 精品乱码一区内射人妻无码 | gay男打屁股视频网站 | 黑人日亚洲女人 | 噜噜色图 | 在线网站免费观看入口 | 国产美女69视频免费观看 | 毛片毛片毛片 | 受在寝室被多攻高H男男小说 | 99久久无码一区人妻A片蜜臀 | 69精品在线观看 | 快播免费片毛网站 | 成人网18免费软件大全 | 成人性生交A片免费看V | 飞空精品影院首页 | 忘忧草一卡二卡三卡 | 国产日韩成人内射视频 | 久久亚洲国产高清 | 韩国黄色一级毛片 | 国产福利一区二区三区在线视频 | 日韩人妻少妇一区二区三区 | 日本老熟五十路息孑安野由美 | 99热在线这里只有精品 | 相爷与女H嗯啊 | JIZZJIZZJIZZ中国熟妇 高清 | 免费热播电视剧大全 | 2020亚洲欧美日韩在线观看 | 四虎天堂 | 日本午夜精品一区二区三区电影 | 人妻AV中文系列 | 在线国产a不卡 | 邻居寂寞人妻中文字幕 | 中文字幕亚洲码 在线观看 中文字幕无线观看在 | 日韩三级| 警察锅哥40集电视剧免费完整版 | 爱操综合| 菠萝蜜BLM新区口 | 日韩亚洲国产综合高清 | 久久福利视频导航 | 巨大黑人极品videos中国 | 亚洲欧美日韩国产手机在线 | 小污女导航福利入口 | 日本老太做爰XX0LD | 国产一级理论免费版 | 国产精选 第1页-要看tv | 精品亚洲卡一卡2卡三卡乱码 | 色哟哟在线观看免费高清大全 | 亚洲精品中文一区二区在线 | 久久免费公开视频 | 国产乱码卡一卡2卡三卡四 国产乱码一卡二卡3卡4卡网站 | 可以在线看av的网站 | 日本视频免费看 | 亚洲一区二区三区乱码在线欧洲 | 国产精品久久福利新婚之夜 | 日本无码成人片在线观看波多 | 韩国日本在线 | 亚洲不卡一区二区三区 | 特级淫片aaaaa片毛片 | 亚洲色吧| 国产午夜精品不卡视频 | 国产成AV人片在线观看无码 | 日韩精品欧美视频 | 国产精品久久久久9999小说 | 天天操穴 | 黄色网页在线观看 | 欧美午夜精品A片一区二区HD | 五月婷六月婷婷 | 97在线线免费观看视频在线观看 | 奇米影色777四色在线首页 | 国产精品1卡二卡三卡四卡乱码 | 在线不卡免费视频 | 亚洲成人免费电影 | 成人网欧美亚洲影视图片 | 高清无码国内自拍视频 | 日日噜噜夜夜爽爽 | 97视频| 久久影院一区二区三区 | 无码免费一区二区三区日本A片 | 久操视频在线观看免费 | 97国内免费久久久久久久久久 | 中出片| 久久永久免费 | 国产亚洲精品久久久久久无码网站 | 久久99精品久久久久久首页 | bt天堂网www天堂| 久久三级网站 | 亚洲AV无码乱码国产麻豆穿越 | 91破解版在线 | 亚洲 | 噜啊噜色在线观看视频 | av淘宝 在线观看 | 亚洲欧洲日本天天堂在线观看 | 色综合综合色综合色综合 | 亚洲 国产专区 校园 欧美 | 他的舌头弄得我爽水好多 | 免费中文字幕日产乱码 | 最好在线观看免费韩国日本电影 | 国产福利你懂的 | 三级毛片免费看 | 午夜伦 | 免费无遮挡无码永久在线观看视频 | 热の综合热の国产热の潮在线 | 9191在线| 久久亚洲精品中文字幕三区 | 亚洲精品无码一区二区三区网雨 | 欧美一线高本道高清免费 | 日本喷潮 | 天美一二三传媒免费观看 | 国产品无码一区二区三区在线 | 色婷婷小说网 | 2024国产大片天天看 | 亚洲精品一区久久久久久 | 国产黄色一级网站 | 四虎影视免费在线 | 色欲AV久久一区二区三区 | 中文字幕人妻少妇引诱隔壁 | 日韩精品一区二区三区在线观看l | 天堂网2021天堂手机版 | 国产精品三级在线观看 | 一级做a爱 一区 | 天美传媒国产剧影视公司 | 欧美黄区 | 松岛枫百度影音 | 一二三四免费中文字幕 | 亚洲国产区男人本色在线观看 | 最近最新中文字幕大全手机在线 | 窝窝影院午夜看片毛片 | 波多野结衣手机视频一区 | 97色论 | 国产又大又粗又硬的A片 | 午夜网站在线观看免费网址免费 | 日韩人妻鲁交色情精品视频 | 免费一级国产大片 | 婷婷色激情 | 日本一区二区三区免费播放视频站 | 国产精品久久vr专区 | 青青草原精品国产亚洲AV | 777奇米影视笫四色88me久久综合 | 久久久久国产午夜 | 一色屋精品亚洲香蕉网站 | 免费无码又爽又刺激A片涩涩在线 | 中文字幕A片视频一区二区 中文字幕亚洲乱码熟女在线 | 天天干天天舔天天操 | 国产免费无码又爽又刺激A片动漫 | 精品国产成人AV在线看 | 国产对白精品刺激一区二区 | 久久伊人五月天 | 九九精品免视频国产成人 | 精品欧美一区二区在线观看欧美熟 | 美美哒免费高清影院在线直播 | 拉风色影院 | 日本三级免费网站 | 夜夜超b天天 | 色播影视 | 无码射肉在线播放视频 | 最新精品国偷自产在线69 | 国色天香精品一卡2卡三卡4卡 | 日本中文在线播放 | 日本人妖miran护士 | 爽天天天天天天天 | 疯狂伦交1一6 小说 疯狂揉小泬到失禁高潮在线 | 黄色网免费观看 | 精品国产亚洲AV麻豆 | 激情内射亚洲一区二区三区 | 久久久综合结合狠狠狠97色 | 午夜福利麻豆国产精品 | 国产午夜久久精品 | 高清不卡日本v在线二区 | 深夜成人福利视频 | 国精产品一二二区视早餐有限 | 一级特黄性色生活片一区二区 | 亚洲三级在线中文字幕 | 国产亚洲自拍一区 | 黄色免费网站在线观看 | 国产午夜精品久久理论片 | 日日夜人人澡人人澡人人看免 | 啪啪啪邪恶动态图 | 波多野结衣在线一区二区 | 国产成人精品无缓存在线播放 | 两个女人互添下身爽舒服小说 | 五月婷婷欧美综合 | 九一传媒果冻制片厂 | 久久婷婷激情综合中文字幕 | 片黄免费 | 亚洲综合社区 | 狠狠干狠狠操 | 一级黄色a | 91在线网站| ds精品 | 日本高清另类videohd | 高清性色生活片免费播放网 | 久久99九九精品免费 | 久久精品国产精品亚洲毛片 | 日本精高清区一 | 日韩欧美一区二区三区 | 日本中文字幕免费 | 日本黄页视频 | 免费WWW XXX | 亚洲成人777777 | 亚洲日本韩国在线 | 91爱视频 | 黄网站免费线观看免费 | 国产亚洲精品视频在线网 | 亚洲国产日韩制服在线观看 | 四虎在线视频免费观看视频 | 欧美成人大色情大片破碎的拥抱 | www.毛片| 天堂资源在线中文在线 | 国产视频网站在线观看 | 国产自产一区c | 女人让男人捅30分钟 | 2021中国大陆精品视频xxxx | 国产福利资源网在线观看 | 国产日产亚洲系列首页 | 亚洲色图激情小说 | 青草青草久热精品视频99 | 一区二区三区日韩免费播放 | 囯产精品宾馆在线精品酒店 | 大陆精品福利网址导航在线 | 国产免费久久精品99re丫y | 日本欧美午夜 | 日本无码免费一区二区不卡的视频 | 色情.WWW成人天堂 | 国产人妻XXXX精品HD | 久久99精品久久久久久青青日本 | 免费被黄网站在观看 | 五月综合激情久久婷婷 | 国产1级| 囯产愉拍亚洲精品一区 | 插影院| 国产精品永久免费视频观看 | 狠日狠干日曰射 | 狠狠躁日日躁夜夜躁A片55动漫 | 好男人社区神马在线观看WWW | 免费观看黄色片 | 婷婷四月开心色房播播 | 波多野结衣a v免费观看 | 欧美日韩国产亚洲一区二区三区 | 色窝窝免费播放视频在线 | 丁香久久婷婷 | 强壮的公次次弄得我高潮A片日本 | 国产精品亚洲w码日韩中文 国产精品午夜自在在线精品 | 亚洲欧美国产精品久久久 | 一区二区三区线日本 | 亚洲日本高清成人aⅴ片 | 国产高清免费视频免费观看 | 精品人妻无码一区二区三区手机版 | 国产日韩欧美综合一区二区三区 | 亚洲午夜一区 | 成年人午夜电影 | 嗯 好深 啊 用力 哦 嗯 啊视频 | 免费观看韩国经典的A片 | 粗大的内捧猛烈进出A片 | 国内自拍视频在线播放 | 男人把女人桶到爽免费看视频 | 日本免费一区二区三区视频 | 国产第一色 | 99久久国内精品成人免费 | ww久久| 久久五月综合婷婷中文云霸高清 | 日本在线无码中文一区免费 | 男人晚上适合偷偷看的污污 | 成年必看视频在线观看 | 爱色成人网 | 荡女小姿的yin乱生活 | 午夜理论在线观看不卡大地影院 | 性69式视频在线观看免费 | 麻婆豆传媒一区二区三 | 精品一区二区三区免费观看 | 先锋影音波波资源网 | 久久久久99 | 宅男噜66免费看网站 | 日本a在线免费观看 | 高h高肉浪贱 | 亚洲精品久久国产高清 | av在线观看网站 | 中文字幕乱码 电影在线观看 | 免费污的网站 | 欧洲免费看片尺码大 | 波多野结衣99 | A片A三女人久久20247 | 亚洲欧洲视频一区 | 在线日韩视频 | 亚洲一卡2卡二卡4卡乱码 | 国产精品成人免费 | 日韩中文字幕视频在线观看 | 亚洲精品一区国产欧美 | 成人污污污WWW网站免费直播 | 热久久久久| 99精品无人区乱码在线观看 | 中文在线免费不卡视频 | 中文字幕第 | 日本a在线免费观看 | 新版天堂中文资源官网 | 中文字幕精品1在线 | 性荡视频播放器在线视频播放 | 亚洲精品一区二区三区无码A片 | 在线观看免费黄色小视频 | 日本高清VA在线播放 | 内射老阿姨1区2区3区4区 | 不卡视频一区二区三区 | 一本道色情免费网 | 国产成人鲁鲁免费视频a | 亚洲巨乳日本无码一二三区 | 黄址在线观看 | 日本一区免费看 | 久久99九九精品免费 | 福利四区 | 999亚洲国产精华液 99RE久久爱五月天婷婷 | 欧美人善交videosg | 朱竹清把我夹得又紧又爽 | 91最新91精品91蝌蚪 | 少妇高潮呻吟A片免费看小说 | 国模无水印一区二区三区 | 亚洲一区二区欧美日韩 | 狠狠色综合20247久夜色撩人 | 日本老妇乱子伦中文视频 | 色导航大全 | 花唇扒开(H)双性 | 蜜臀AV色欲A片无码一区 | 自拍 亚洲 欧美 卡通 另类 | 黄色免费网站在线 | 色猫咪导航 | 三级 网站 | 国产啪亚洲欧美精品无码 | 麻豆传煤官网APP入口 IOS | 在线岛国片免费观看无码 | 国产日韩精品SUV | 天天干天天夜 | 天堂网在线观看 | 偷偷撸在线影院 | 天天天做天天天天爱天天想 | 国产a网| 黄色软件草莓丝瓜秋葵安卓下载破解版大全 | 亚洲婷婷六月 | 毛片A级毛片免费观看品善网 | 亚洲综合色网 | 色噜噜狠狠狠狠色综合久不 | 2021国产精品一卡2卡三卡4卡 | 久久中文字幕人妻AV熟女 | 新超碰97在线观人人澡 | 欧美日韩免费看 | 影音先锋电影资源av | 亚洲欧美精品一区天堂久久 | 色多多www| 欧美乱妇无码大片在线观看 | 国产乱码卡一卡2卡三卡四 国产乱码一卡二卡3卡4卡网站 | 在线观看黄色网页 | 天天综合天天 | 嗯好舒服嗯好猛嗯好大不要 | 激情影院在线 | 国产精品久久久精品视频 | 日本高清视频免费看 | 91资源在线 | 日韩欧无码一区二区三区免费不卡 | 午夜精品视频在线无码 | 日韩欧美一区二区无码免费 | 无码色AV一二区在线播放 | 2024婷婷天堂综合区色吧 | 亚洲精品久久无码AV片俺去也 | 日本欧美国产精品第一页久久 | 国产一卡2卡3卡4卡精品 | 在线观看的av免费网站 | 最近最新中文字幕高清免费 | 五月色网站 | 成人18免费网站 | 久久综合图片 | 久久综合第一页 | 成年私人影院网站在线看 | 亚洲欧美综合中文 | 一区二区三区观看 | 色中色网址 | 伊人大相蕉在线看青青 | 国产精品伦理一区二区三区 | 777婷婷天堂综合区色吧 | 秋霞电院影无码 | 4色播| 国产在线视频你懂得 | 簧片视频在线观看 | 一二三四日本无码影视 | 影音先锋天堂网资源av | 中文字幕 欧美激情 | 宝贝乖女好紧好深好爽老师 | 影音先锋大型av资源 | 欧美精品做人一级爱免费 | japansexxxxhd超清| 日本高清在线视频无码 | 亚洲欧美一区二区三区在线 | 欧洲丰满大乳人妻无码欧美 | 欧美在线精品一区二区在线观看 | 黄色一级免费看 | 在线资源天堂www | 麻豆视频免费观看 | 亚洲国产影视 | 伊人久久大香线蕉观看 | 国产乱码精品一品二品 | 国产一区视频在线 | 在线免费看黄网站 | 99re免费视频 | 欧美v片 | 张暖雅17张大尺度照 | 久久国产一久久高清 | 日韩黄色在线观看 | 色情婷婷综合乱埥亚洲 | 日韩 高清 无码 人妻 | 91福利网址导航 | 久久成人永久免费播放 | 最近更新中文字幕大全免费 | 色阁阁日韩欧美在线 | 小说区 综合区 首页 | 被工地工人轮着上雯雯 | 日xxxx| 午夜福利免费视频921000电影 | 久久这里只有精品久久 | 亚洲精品久久久久久久蜜桃 | 国产精品伦理久久久久久 | 久久免费视频精品在线 | 两性午夜欧美高清做性 | 综合干狼人综合首页 | 在线亚洲自拍 | 青青自拍视频一区二区三区 | avtt2015天堂网 | 日日影院| 色噜噜狠狠狠狠色综合久不 | 国产强伦姧人妻一区二区 | www.久艹| 国产精品手机在线观看 | 日本在线播放一区 | 高h辣h双处全是肉一对一 | 野花成人福利在线 | 男人J进入女人P呻吟视频免费 | 欧美深夜福利网站在线观看 | 国产成人福利免费视频 | 国产精品成人免费福利 | 特级毛片 | 亚洲人精品亚洲人成在线 | 99久热re在线精品99 6热视频 | 亚洲制服丝袜中文字幕 | 中文字幕精品无码一区二区 | 日本妈妈黄色片 | 成人国产综合 | 欧美中文字幕在线 | 91网站视频在线观看 | 青草影视 | 日韩一区二区三区免费视频 | 欧美videos粗暴高清性 | 国产中文字幕在线免费观看 | 久久99中文字幕伊人 | 国产精品悠悠久久人妻精品 | 丁香久久婷婷 | 三级毛片在线 | 毛片在线播放网址 | 日本一卡二卡三卡四卡试看 | 精品日韩免费视频在线观看 | 高清黄色一级片 | 四虎紧急自动转跳在线视频 | 荡乳尤物3HP1V5 | 国产伦精品一区二区三区妓女下载 | 一道本在线观看视频 | 日韩国产三级 | 欧美一区精品 | 日日澡| 国产精品久久久久久久久久妇女 | 欧美一级手机免费观看片 | 俺去也网站 | 黄色动作视频 | 人人免费 | 最近中文字幕完整在线看一 | 波多野结衣三区 | 国产人妻无码区免费九色 | 国产乱子经典视频在线观看 | 黄色在线播放网站 | 翁莹情乱50章三人同床 | 啊灬啊别停灬用力啊动态图 | 欧美日韩精品一区二区三区高清视频 | 蜜桃97| 日本国产一区二区三区 | 99国产精品人妻无码网站 | 边做边爱3电影 | 免费男人的加油站app下载 | 日日碰狠狠躁久久躁96AVV | 国产成人h综合亚洲欧美在线 | 波多野结衣在线观看视频 | 在线电影网 | 快播官网首页 | 国产亚洲精品久久孕妇呦呦你懂 | 成年人黄色网址 | 日本三级香港三级韩国三级 | 欲香欲色天天影视大全 | 免费国产黄网在线观看 | 97伦理| 日本高清一卡二卡三卡四卡免费 | 国产精品大陆在线视频 | 欧美人妻WWW无码国产黄漫 | 国产成人综合在线 | 日本一卡二卡三卡四卡免费观 | 欧美一区二区三区不卡 | v片免费看| 囯产愉拍亚洲精品一区 | 无码专区aaaaaa免费视频 | 五月综合激情 | 久久精品国产日本波多麻结衣 | 亚洲一区二区久久 | 在线播放91撕破艺校舞蹈系 | 日本视频网站在线观看 | 亚洲视频日韩 | 午夜福利视频1692 | 久久精品国产亚洲AV蜜臀 | 亚洲丁香婷婷综合久久小说 | 日本在线日本中文字幕日本在线视频播放 | 国产精品理论片 | 狠狠搞狠狠干 | 中文字幕高清在线中文字幕 | 天天透天天插 | 99热在线精品播放 | 粗大的内捧猛烈进出A片 | 在线视频久久只有精品第一日韩 | 国产三级三级三级三级 | 波多野结衣一区二区三区在线观看 | 特级毛片AAAAAA| 92kyy福利合集 | 内射丰满高大五十五岁熟女 | 国产精品无码AV天天爽色欲 | 在线色网站 | 92看片淫黄大片一级 | 抖音C人版奶片7028 | 国产成人免费高清在线观看 | 2024高清国产一区二区三区 | 色婷婷社区 | www.色在线| 国产综合在线播放 | 日本精品无人区卡1.卡2视野 | 久久国产精品99久久久久久牛牛 | 中文无码有码亚洲 欧美 | 篠崎かんな黑人解禁粗暴 | 男人一边吃奶一边做爰免费视频 | 亚洲精品久久久久一区二区三 | 最新发布页ccyycom草草影院 | 毛片毛片 是个 毛片 | 久久视频这里只精品99 | 亚洲精品久久无码AV片麻豆 | 精品午夜视频 | 亚洲精品精华液一区二区 | 国产强伦姧人妻一区二区 | 欧美又大又粗AAA片免费看 | 久久久国产亚洲精品 | 涩涩网站在线看 | 边吃奶边狠狠躁日韩A片 | 宝贝乖把腿分大一点h欧阳凝小说 | 欧美一级三级 | 看黄网址 | 欧美又粗又大AAAAA级毛片 | 日本在线观看一级高清片 | 美女扒开胸罩露出奶头的动态图片 | 色视频免费 | 国产精品毛片在线更新 | 凡人修仙传动漫53集免费 | 99re在线视频免费观看 | 动漫精品视频一区二区三区 | 免费高清在线影片一区 | 黄色片视频免费 | 日本在线不卡免费视频 | 国产精品久久久AV久久久 | 久久综合给合久久97色美利坚 | 国产精品人妻99一区二区 | 黄色国产免费观看 | 天天射天天干天天色 | 日本色色网| 国产91免费 | 嫩B人妻精品一区二区三区 嫩草AV久久伊人妇女 | 国产亚洲第一伦理第一区 | 高清久久| 影音先锋 av男人资源 | 亚洲综合网国产精品一区 | 国内精品久久久久影院网站 | 在线2018免费观看高清视频 | 无限资源在线视频完整版观看 | 色噜噜狠狠色综合欧洲selulu | 免费无码无遮挡永久色情聊天 | 中文字幕在线观看国产 | 亚洲女同在线 | 亚洲色图第四页 | 91爱视频| 毛片网此 | 高清一区二区三区日本久 | 九九热在线视频观看这里只有精品 | 日韩一区二区在线免费观看 | 波多久久夜色精品国产 | 一卡二卡三卡四卡无卡在线 | 亚洲精品区无码欧美日韩 | 亚洲精品无码国产爽快A片 亚洲精品无码成人A片在线软件 | 国产精品99久久久 | 毛片基地美国 | 日本精品中文字幕有码 | 日本视频免费在线观看 | 国产视频自拍一区 | 色悠悠| 最近新免费韩国日本电影 | 久久伊人中文字幕有码 | 校草上课时狂揉我下面 | 日日碰狠狠躁久久躁96AVV | 日韩欧美一区二区三区不卡在线 | 拍拍拍无遮挡高清视频在线网站 | 麻豆亚洲精品中文字幕一麻豆 | 久久伊人中文字幕 | 黄色小说在线播放 | 日本黄色aa | 天天摸夜夜操 | 人妻洗澡被强伦姧完整国产 | 小小视频资源免费观看高清 | 免费看电影网站 | 国产亚洲精品久久久999无毒 | 最新无码国产在线视频9299 | 国产精品亚洲AV色欲一区二区三区 | 欧美激情xxxxssss | yy直播不雅视频完整版 | 无限资源在线视频完整版观看 | 国产综合在线播放 | 国产亚洲女人久久久久久 | 黄色片网址大全 | 91亚洲视频在线观看 | 国产网站免费看 | 久久成人国产精品免费软件 | 精品亚洲永久免费精品 | 三级中文字幕 | 中中文字幕亚洲无线码 | 一区二区三区线日本 | 日韩吃奶摸下AA片免费观看 | 久久国产高清一区二区三区 | 国产成人久久婷婷精品流白浆 | 全黄H全肉短篇n男男 | 在暴雪时分电视剧免费观看吴磊 | 欧美一级特黄乱妇高清视频 | 婷婷综合另类小说色区 | 日本v片 | 极品少妇高潮啪啪AV无码 | 桃色AV久久无码线观 | 美女午夜色视频在线观看 | 成 人 网 站免费观看 | 国产福利视频在线观看福利 | 日韩xxxx做受欧美 | 免费无码毛片一区二区A片 免费无码精品黄AV电影 | freefron性中国 | 国产精品扒开腿做爽爽爽A片小 | 91日本在线观看亚洲精品 | www..com黄色| 亚洲精品久久久久久久不卡四虎 | 久操网视频 | 最近中文字幕在线看免费完整版 | 成人做爰A片免费看视频 | 国产人妻久久精品一区二 | 无码日本邻居大乳人妻波多野结衣 | 四房播播qvod | 亚洲精品鲁一鲁一区二区三区 | 久久草在线视频 | 99heicom视频| 中国chinese自拍old | 欧洲无码八A片人妻少妇 | 丁香五月天的最新地址 | 国产亚洲自拍一区 | 色综合久久久久久888 | 天天拍天天色 | 亚洲AV久久婷婷蜜臀无码不卡 | 精品国产人妻一区二区三区免费 | 久青草国产手机视频免费观看 | 麻豆高潮AV久久久久久久 | 亚洲精品久久片久久久久 | 国产人妻久久久精品麻豆 | 老司机精品在线 | 午夜天堂 | 国产永久一区二区三区 | 打开腿闺蜜用黄瓜让我爽 | 久久频这里精品99香蕉久网址 | 波多野结衣中文在线观看 | 日韩精品内射视频免费观看 | 女人18毛多水多A片视频 | 最近最新中文字幕大全高清版 | 在线免费看电影 | 新午夜影院 | 精品丰满人妻无套内射 | 欧美激情一区二区三级高清视频 | 最近中文字幕2019免费BD | 九一传媒果冻制片厂 | 狠狠久久免费视频在线 | 亚洲欧美精品一区天堂久久 | 国产精品污视频 | 果冻传媒 天美 麻豆 | 三级高清| 华人91视频 | 黄视频网站在线观看 | 97青草| 狠狠躁日日躁夜夜躁A片小说天美 | 国产精品久久人妻无码电影张丽 | 日韩插啊免费视频在线观看 | 免费国产caob视频 | 99国产午夜精品一区二区 | 99C视频色欲在线 | 91制片厂制作果冻传媒网站 | 久久久午夜精品福利内容 | 野花日本大全免费观看6高清版 | 99精品视频观看 | 久久99AV无色码人妻蜜柚 | 色另类| 黄页在线免费观看 | 无码精品A片一区二区电影在线 | 91精品久久久久久久久久 | 欧美视频在线观看免费 | 一个人在线视频免费观看www | 天堂资源在线最新版 |