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

wsag

12 Oct 2025(atualizado 12/10/2025 às 08h36)

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

Temas

Compartilhe

Mestre Fafá, da Grande Rio, fala sobre frustra??o de décimo perdido e diz que vai descansar: ‘Depois eu penso na nora e no neto da minha m?e’'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 bingo cartela ate 50its 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

'There was a real gutsiness about them' How the heiresses dubbed the 'dollar princesses' brought US flair to the UK.txt

Anitta interrompe 'Vai malandra' para ajudar, do alto do trio, seguran?as e policiais a prender ladr?o; VíDEO abrangente e os entretenimento ponto quente.

GRáFICOS

nos eixos

Young_Reporter_-_BBC_News.txt

Medicamentos para depress?o e ansiedade podem afetar a dire??o; veja cuidados a tomar conhecimento e os lazer foco.

Navegue por temas

Renault convoca Kwid e Duster para recall por defeito no eixo traseiro Hiace: Toyota traz 'van da Hilux' ao mercado brasileiro, partindo de R$ 364.990 Bem-Estar #291: Dieta anti-inflamatória para a endometriose IPI zero faz vendas de carros 1.0 subirem em julho; veja quais modelos venderam mais Leil?o de veículos do Detran-SP tem Honda Civic mais barato que iPhone, e Corsa a R$ 4,5 mil Lore Improta diz que aceitaria cargo de rainha de bateria, mas que ‘está feliz no cargo que ocupa’ Monobloco se apresenta no Centro do Rio; veja quais blocos oficiais encerram a folia Bom Dia Brasil 40 anos: Apresentadores e comentaristas mandam mensagens e contam suas ; veja o vídeo Paolla Oliveira chora em despedida como rainha de bateria da Grande Rio: 'cora??o apertado' érika Januza se despede como rainha de bateria da Viradouro: ‘Cora??o apertado, mas queria que fosse assim mais caloroso’
波多野结衣久久国产精品 | 国产精品久久久久久久久久98 | 西方毛片 | 亚洲色站导航 | 亚洲一卡久久4卡5卡6卡7卡 | 狠狠色婷婷综合天天久久丁香 | 99热一区| 国产99er66在线视频 | 91网站网址最新 | 日本一道人妻无码一区视频 | 在线观看国产精选免费 | 又黄又刺激又高潮的小说 | 少妇护士放荡激情嗯啊小说 | 久久人人澡 | 极品销魂一区二区三区 | 日本亚洲欧美 | 精品无人区乱码一区二区三区手机 | 永久黄网站色视频免费 | 国产真实乱子伦清晰对白 | 国产无遮挡色视频免费观看性色 | 国产ZLJZLJZLJZLJ18公司 | 国产精品成人久久久久 | 在线观看免费国产 | 亚洲乱码中文字幕久久孕妇黑人 | 国产福利资源在线 | 亚洲开心色 | 在线看免费完整欧美电影网站 | 四房色播在线电影 | 特级A欧美做爰AAAAA片 | 欧美MV日韩MV国产网站 | 国产欧美日韩一区二区赛车 | 99精品免费久久久久久久久日本 | 日本三级中文字幕 | 精品欧美亚洲韩国日本久久 | 欧美日韩一区二区三区色综合 | 五月天色丁香 | 免费被黄网站在观看 | 亚洲精品久久久久久无码AV | 亚洲精品卡一卡2卡3卡4卡 | 毛片A级毛片免费观看品善网 | 国产www视频 | 免费视频不卡一区二区三区 | 欧美日韩一区二区三区免费不卡 | 欲盖弄潮百度影音 | 色婷婷我要去我去也 | 日本加勒比视频在线观看 | 日本老妇乱子伦中文视频 | 久久视频在线视频观看99 | 亚洲精品卡2卡3卡4卡乱码 | v片在线免费观看 | 精品欧美一区视频在线观看 | 亚洲 欧美 自拍 制服 另类图片 | 丁香综合网 | 日韩天天干| 好大好硬再深一点口述 | 夜夜艹天天干 | 国内精品久久久久久久久久久久 | 久热精品视频在线 | 色中色成人导航 | 人人爱夜夜爽日日做视频 | 日本一卡二卡3卡四卡免费 日本一卡二卡三卡四卡免费观 | 99久久免费视频6 | 国产永久在线 | 精品无码久久久久久久动漫 | 国产精品99久久99久久久看片 | 欧美午夜精品一区区电影 | 黄页免费观看 | 麻豆国产精品久久人妻 | 狠狠躁日日躁夜夜躁A片免费 | 中文字幕亚洲第一 | 自拍亚洲在线播放视频 | 国产精品一区二区资源 | 日本一本一道波多野结衣 | 日本无码精油按摩WWW视频 | 日本wwxx| 日本无码一区二区三区不卡 | 国产精品成人无码A片免费软件 | 欧美日韩中文字幕在线手机版本 | 在线观看视频你懂的 | 2024四虎永久在线影院 | 奇米777视频国产 | 天天干b| 国产午夜精品一区理论片飘花 | 美女扒开下面让男生桶白浆 | 国产一级特黄a大片99 | 人妻系列_第 9 部分 | 开心色99 | 99在线观看免费 | 欧美一级xxxx俄罗斯一级 | 亚洲成人黄色在线 | 波多野结衣亚洲一区 | 在线色综合 | 俺去也官网 | 中文 在线 日韩 亚洲 欧美 | 琪琪电影网伦理片韩国 | 日日操干| 3d肉蒲团观看地址 | 午夜免费大片 | 日韩中文字幕在线播放 | 色狠狠成人综合网 | 区久久AAA片69亚洲 | 欧美日韩久久 | 欧美性精品人妖 | 日韩视频专区 | 亚州网 | 国产a网| 无码AV亚洲一区二区毛片 | 日本高清天码一区在线播放 | 欧美性生交大片免费看A片 欧美性生交大片免费看A片免费 | 欧美人成一本免费观看视频 | 欧美 亚洲综合在线一区 | 成人免费又大又爽A片视频 成人女人A级毛片免费软件 | 99精品在线免费 | 中文字字幕在线中文乱码2019 | 狠狠色色综合网站 | 欧美在线观看视频一区 | 精选国产AV精选一区二区三区 | 午夜在线网站 | 体育生爽擼又大又粗的雞巴的动漫 | 日韩精品内射视频免费观看 | www.亚洲天堂网 | 亚洲VA天堂VA欧美片A在线 | 男女无遮挡猛进猛出免费观看视频 | 级R片内射在线视频播放 | 国产69囗曝吞精在线视频 | 久久久夜间小视频 | 国产成人精品福利网站在线观看 | 啪啪啪免费视频 | 国产三级一区二区 | 18禁无遮挡羞羞动漫视频免费 | 久久精品天天爽夜夜爽 | 精品视频一区二区三三区四区 | 欧美干b | 激情又色又爽又黄的A片 | 国产熟女一区视频在线播放 | 无码免费人妻A片AAA毛片一区 | 成人精品一区二区激情 | 99久久无码一区人妻A片蜜桃 | 久久多人视频聊天 | wwwjizz日本| 韩国伦理电影在线神马网 | 精品三级66在线播放 | 免费一区二区三区久久 | 亚洲天天综合网 | 亚洲区中文字幕在线不卡电影 | 久久九九久精品国产 | 免费网站在线观看国产v片 免费网站色 | 欧洲成人爽视频在线观看 | 欧美国产中文在线字幕视频 | 国产成人精品三级在线 | 老妇毛片久久久久久久久 | 国产高清免费观看 | 天天操夜夜操 | 亚洲AV无码色情第一综合网 | 青青草成人色情视频网 | 99这里只有是精品2 9I看片成人免费 | 亚洲欧美国产日本 | 精品一区二区在线观看 | www黄在线观看 | 我色综合 | 重返20岁下载 | 久久精品国产99国产精品免费看 | 国产婷婷色综合成人精品 | 在线观看免费播放黄污 | 91精品久久久久久久久久 | 日本中文在线 | 久久久久久久一精品 | 国产无吗一区二区三区在线欢 | 第四色网站主页 | 国产在线观看中文字幕 | 波多野结衣中文字幕一区二区 | 欧美日韩亚洲综合2019 | 国产一区亚洲二区三区毛片 | A级毛片高清免费网站不卡 a级毛片黄色 | 蜜桃久久久| 中文无码第3页不卡av | 日本午夜成年在线网站 | 久操网在线 | 在线观看亚洲欧美视频免费 | 色吧成人网| 亚洲狠狠婷婷综合久久久久网站 | 把腿张开老子臊烂你多P视频软件 | 亚洲精品中文字幕乱码三区 | 成 人 黄 色 免费网 | 我的yin荡女佳佳第18章 | 一人看片WWW在线视频 | 国产又黄又粗又爽又色的视频软件 | 小明永久成人一区二区 | 五月婷婷激情五月 | 久草黄色 | 男人的天堂在成a | 国产亚洲精品久久久999苍井空 | 午夜福利视频合集1000 | 五月激情综合婷婷 | 国产精品综合 | 亚洲成人黄色在线 | 免费一级黄色片 | 国产好大好爽久久久久久久 | 婷婷成人综合 | 亚洲欧洲精品成人久久曰影片 | 在线免费观看日本视频 | 国产精品人妻一码二码尿失禁 | 黄色片网站视频 | 亚洲午夜久久久无码精品网红A片 | 性做爰片免费视频看 | 美国伊人| 亚洲AV成人一区二区三区在线看 | 国产亚洲精品久久久久秋霞不卡 | 亚洲成a人v欧美综合天堂下载 | 日韩a片 | 国产精品久久久久久爽爽爽床戏 | 啊好湿双性(h)生子 啊灬啊别停灬用力啊免费视频 | 国产成人在线综合 | 色妺妺在线视频 | jizz国产精品网站 | 欧美成网 | 日本三级在线观看511 | 92电影网午夜福利 | 苍老师免费网址 | 国产又大又黑又粗免费视频 | 色偷偷噜噜噜亚洲男人 | 国产高清精品入口91 | 意大利色情肉欲乐园 | 吉泽明步 超m自缚痴女 | 亚洲国产精品无码中文在线 | 成人黄色毛片 | 最近韩国日本高清免费观看 | 成熟YIN荡美妞A片视频麻豆 | 老司机精品视频线观看86 | 中国精品久久精品三级 | 神兵小将第一季免费观看 | 国产午夜精品理论片在线 | 一二三四日本无吗影视 | 精品少妇一区二区三区A片 精品日本亚洲一区二区三区 | 午夜免费看视频 | 国产AV无遮挡喷水喷白浆小说 | 日本女同在线观看 | 品色堂bt | 国产日韩中文字幕 | 熟妇乱子作爱视频大陆 | 国产精品久久久久影院色 | 中文字幕一区二区在线观看 | 色欲精品国产AV久久久 | 亚洲五月综合 | 亚洲国产成人精品无码区5566 | 国产黄色在线视频 | 国产a高清 | 国产在线观看免费 | 日韩在线视频在线 | 波多野结衣办公室33分jian情 | 熟女倶楽部1011熟女倶楽部 | 橘梨纱star 409| 色拍拍欧美视频在线看 | 午夜一区二区三区 | 亚洲国产天堂久久综合226 | 二级毛片在线观看 | 中国孕妇XXXXXXXXX孕交 | 亚洲AV久久无码精品热九九 | 亚洲欧美久久久久久久久久爽 | 他揉捏她两乳不停呻吟A片 她也色在线视频站 | 亚洲视频aaa| 国产97色在线 | 免费 | 波多野结衣在线一区 | 欧美色交 | 你懂的中文字幕 | 九九精品视频在线 | 天天躁日日躁狠狠躁AV麻豆 | 日本www.在线中文字幕 | 高h禁伦没羞没躁 | 亚洲天堂三区 | 精品福利app导航 | 免费观看一级欧美在线视频 | 久久视频在线视频2019 | 久久频这里精品99香蕉久网址 | 成人午夜福利视频镇东影视 | 亚洲精品蜜夜内射 | 中文字幕三级在线不卡 | 日日干天天操 | 日产中文字乱码卡一卡二视频 | 内射后射亚洲国产巨乳 | 欧美伊人 | 黑人极品videos精品欧美裸 | 国产农村妇女成人精品 | 在线观看免费播放网址成人 | 国产精品1卡二卡三卡四卡乱码 | 国产亚洲欧美日韩综合综合二区 | 天堂在线视频精品 | WWW久久只有这里有精品 | 麻豆文化传媒一区二区 | 性一交一乱一伦一A片 | 香蕉AV福利精品导航 | 国产精品A成V人在线播放 | 国产综合一区二区三区 | 亚洲熟女乱色综合亚洲图片 | 影音先锋女人AA鲁色资源 | 色网站在线观看 | 色综合网站国产麻豆 | 夜鲁鲁鲁夜夜综合视频欧美 | 天天爱综合网 | 亚洲精品国偷拍自产在线观看蜜臀 | 脱女学小内内摸出水网站免费 | 日本精品久久久久久久久免费 | 青青久在线视频免费视频 | 激情内射亚州一区二区三区爱妻 | 自偷自拍亚洲欧美清纯唯美 | 亚洲精品国偷拍自产在线观看蜜臀 | 男人吃奶捏奶很爽视频免费 | 丁香六月婷婷激情 | 国产成人精品永久免费视频 | 午夜男人视频 | 99re热| A片好大好紧好爽视频 | 日本无码欧美激情在线视频 | 免费v片在线观看网站 | 国产v片 | 日日摸天天爽天天爽视频 | 精品无码无人网站免费视频 | 男男GV白嫩小受GV在线播放 | YIN荡俱乐部调教男男 | 在线亚洲国产日韩欧洲专区 | 浪潮AV在线观看高清 | 伦理网站 | 欧美性在线视频 | 99在线免费播放 | 一区二区三区毛A片特级 | 强壮公弄得我次次高潮A片强视频 | 黄色免费网站在线 | 成人亚洲A片V一区二区中出片 | 日本高清WWW无色夜在线视频 | 最近的最新的中文字幕视频 | 日韩国产欧美一区二区三区 | 色偷偷在线视频直播 | 丁香婷婷色综合 | 十二寡妇肉床艳史邵氏小说 | 亚洲色图第四页 | 精品国产一区二区三区四区精华液 | 久久久国产视频 | 在线二区| 韩国日本伦理片 | 精品人妻无码一区二区三区蜜桃臀 | 玖玖免费| 污污又黄又爽免费的网站 | 亚洲人成小说色在线 | 一本色道久久爱88AV俺也去 | 天天综合网色中文字幕 | 欧美精品A片XXX| 六月丁香伊人 | 天美影视文化传媒公司 | 蜜臀91 | 久久成人国产精品一区二区 | 五月婷婷六月合 | jizzyou日本| 亚洲国产在线精品国 | 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 | 国内一本到不卡在线观看 | 不卡久久 | 色在线网| 日韩精品一区二区三区在线观看 | 波多野结衣xxxxx在线播放 | 在厨房挺进美妇雪臀电影 | 蜜桃成熟时李丽珍 | 金妍儿不雅视频 | 999国产精华是正规产品吗 | 国产一区二区精品视频 | 波多野结衣一级 | 成人乱码一区二区三区AV66 | 99精品视频在线观看免费播放 | 亚洲日本中文字幕区 | 羞羞影院午夜男女爽爽影院网站 | 99国产在线观看 | 2021韩国理论片在线观看私人影院 | 日本中文字幕网 | 久久久久久久久一次 | 欲色影视天天一区二区三区色香欲 | 亚州毛色毛片免费观看 | 免费搞逼视频 | 在线日本v二区不卡 | 97SE亚洲精品一区二区 | 天天躁日日躁 疯人影院 | 国产女人综合久久精品视 | 波多野结衣免费一区二区三区香蕉 | 久久视频精品3线视频在线观看 | 天天干天天看 | 成年黄网站在线观看免费 | 亚洲a级在线观看 | 日本加勒比视频在线观看 | 日韩黄色在线观看 | 古装一级无遮当一级毛片 | 永久免费在线看 | 麻豆AV字幕无码中文 | 国产日产久久 | 久久不卡影院 | 高清欧美不卡一区二区三区 | 天天爱夜夜操 | 91精品国产综合久久婷婷 | 亚洲影视网 | 亚洲午夜精品A片久久不卡蜜桃 | 欧美又粗又大又爽又色A片 欧美又粗又黄又硬的A片 | 国产拍揄自揄免费观看 | 亚洲国产日韩制服在线观看 | 免费无码又爽又刺激高潮视频日本 | 国产午精品午夜福利757视频播放 | 国产亚洲精品成人久久网站 | 69老司机精品视频免费观看 | 最近中文字幕完整国语 | G0GO人体大尺香蕉 | 深爱婷婷 | 国产精品久久久久毛片真精品 | 你他妈别舔内射视频免费 | 秋霞av伦理片在线观看 | 久久综合久久鬼 | 老司机午夜免费福利 | 亚洲精品卡2卡三卡4卡2卡乱码 | 天天干天天射天天 | 无码人妻一区二区久久 | 韩国三级香港三级日本三级la | 日本人jizz | 日本高清免费一本视频在线观看 | www好男人精品视频在线观看 | 老司机精品视频线观看86 | 久久理伦片琪琪电影院 | 国产欧美亚洲日韩图片 | 亚洲欧洲日产国码久在线 | 婷婷 综合网站 | 午夜小电影成人福利片 | 欲乱艳荡少寡妇全文免费 | 中文字乱码电影在线播放 | 五月丁香激色婷五月天 | 手机在线观看网站免费视频 | 久久精品女人天堂 | 亚洲射图| 一级做a爱过程免费视频app | 校园H所有人随时随地做 | 久久亚洲精品高潮综合色A片 | 漂亮的丰年轻的继坶3在线观看 | 黄色小网站在线观看 | 亚洲永久精品ww47 | AV午夜午夜快憣免费观看 | 免费精品国偷自产在线读大二 | 国产jizzjizz| 亚洲日本一期二期三期精华液 | 少妇高潮A片特黄久久精品网 | 久热国产在线视频 | 久草在在线免在线观看视频 | 亚洲精品久久久久高潮 | 国产成人禁片在线观看 | 精国产品一区二区三区A片 精产国品一二三产品麻豆 金瓶梅2快播 | 久久狠狠第一麻豆婷婷天天 | 亚洲成a人v欧美综合天堂下载 | 国产性生大片免费观看性 | AV色蜜桃一区二区三区 | 亚洲国产精品日韩一线满 | 精品黑人一区二区三区久久 | 午夜亚洲国产理论片4080 | 美女翘臀白浆直流视频 | 爱你千万次韩剧免费观看全集 | 色综合天天综一个色天天综合网 | 精品剧情v国产在线麻豆 | 久久精品站 | 免费看午夜高清性色生活片 | 国产VA精品午夜福利视频 | 日本亚洲欧洲色情 | 国产黄在线观看免费观看 | 91香蕉在线视频 | 国产做爰又粗又大又深人物 | 鸥美一级黄色片 | 国产亚洲毛片在线 | 99视屏 | 毛片三级在线观看 | 精品无码国产一区二区日本 | 久久极品| 欧美AAAA级A片又粗又硬 | 亚洲国产成人久久 | 欧美日韩中文国产一区 | 九九视频精品全部免费播放 | 在线成本人视频动漫 www | 色综合色综合色综合色综合网 | 国产在线观看不卡免费高清 | 激情五月黄色 | 永久免费看A片无码播放器不卡 | 久久视频在线直播 | 日韩精品内射视频免费观看 | 日本理论片和搜子同居的日子GOOD | 国产欧美日韩中文视频在线 | 国产精品久久久久久永久牛牛 | 9900LU永久跳转 | 国产成人18黄网站免费 | 丰满老熟女白浆直流 | 色窝窝亚洲AV在线观看 | 小婷你真紧好浪水好多 | 亚洲性影院 | 日本精品在线视频 | 狠狠色丁香婷婷综合尤物 | 福利网站在线 | 狠狠躁 | 免费国产黄页不收费 | 国产亚洲精品久久久一区 | 无码无遮挡成人A片 | 精品91精品91精品国产片 | 午夜免费视频网站 | 成年黄色网 | 波多野结衣教师中文字幕 | 欧美性1生交XXXXX无码 | 制服 欧美 亚洲 高清 | 老司机精品在线 | 桃子视频在线观看免费完整版 | 国产在线精品观看免费观看 | 久久久久女人精品毛片九一 | 成人日韩在线 | 992tv国产人成在线观看 | 午夜伦理一yy4480影院 | 国产成人精品日本亚洲语言 | 一个人看的视频www在线观看免费 | 国产日韩高清一区二区三区 | 欧美3区 | 国产只有精品 | 日韩在线一| 免费费很色视频大片 | 久久无码人妻中文国产AV | 国产三级精品三级国产 | 色妹子影院 | 国产乱码卡二卡三卡4 | 欧美www | 亚洲午夜久久久久影院 | 欧美阿v视频在线大全 | 中文字幕欧美一区 | 久久精品视频9 | 黑人狂躁日本少妇在线观 | 嗯啊快拔出来我是你老师 | 日本A片色情AAA片WWW | 五月天丁香视频 | 在线播放波多野结衣 | 亚洲精品卡一卡三卡四卡乱码 | 欧美成人免费在线观看 | 激情综合网五月激情 | 日本最新免费网站 | 快穿之浪荡H啪肉NP文肉BL | 91呻吟丰满娇喘国产区 | 国产在线观看免费观看 | 男子扒开美女尿口做羞羞的事 | 日本电影周| 麻豆一区区三区四区产品麻豆 | 国产人成精品香港三级在 | 老司机免费午夜精品视频 | 国产一区二区精品尤物 | 日本二区三区欧美亚洲国 | 在线看v片| 精品国产人妻一区二区三级 | 少妇VIDES裸体BBWWHD | 性欧美video在线播放 | 四虎在线观看一区二区 | 亚洲在成人网在线看 | 免费晚上看片www | 国产亚洲精品免费 | 欧洲精品色 | nu77亚洲综合日韩精品 | 国产区精品综合在线 | 日本三级香港三级人妇 下载 | 欧美精彩狠狠色丁香婷婷 | 久久久久久久久免费视频 | 免费观看少妇全黄A片 | 日韩国产成人精品视频人 | 国产亚洲精品久久久无码网站 | 一区二区三区在线免费视频 | 国产精品久久国产三级国不卡顿 | 人澡人爽精品A片一区 | 韩国伦理片手机在线观看 | 波多野结衣一区二区三区四区 | 国产成人18黄网站免费网站 | 娇妻的呻吟梦颖完整版 | 妈妈色成人网 | 欧美性受 | 九九视频在线观看视频 | 免费v片在线观看网站 | 性奴抽插乳中出精没射视频搜索 | 免费无码一区二区三区A片蜜臀 | 久久99国产精品久久 | 四虎家庭影院 | 一区二区三区毛片免费 | 国产a国产片 | 99re在线播放视频 | 亚洲熟女片嫩草影院 | jizz日本视频 | 日韩伦理电影在线免费观看 | 在线欧美日韩制服国产 | 乱码欧美一卡2卡3卡4 | 一级生活毛片 | 韩日美无码精品无码 | 欧美xxxx狂喷水喷水 | 97精品一区二区视频在线观看 | tube4欧美最新69| 熟女人妻AV五十路六十路 | 偷拍亚洲另类无码专区 | 亚洲综合久久1区2区3区 | 国产精品扒开做爽爽爽的视频 | 我我色| 一级黄色片在线观看 | 亚洲第一激情 | 99re8在线精品免费观看 | 亚洲AV永久无码麻豆A片 | 欧美午夜特黄AAAAAA片 | 97超视频在线观看 | 久久院线| 2021久久精品99精品久久 | 一级做a爰全过程免费视频毛片 | 国产亚洲欧美在线 | 成人毛片18岁女人毛片免费看 | 在厨房挺进美妇雪臀电影 | 少妇护士放荡激情嗯啊小说 | 亚洲国产专区校园欧美 | 香港三级日本三级人妇网站 | 国产一卡2卡3卡4卡无卡国色 | 双腿挂他肩上撞击轻哼 | 亚洲成色A片202477在线小说 | 福利一区三区 | 精品成人 | 亚洲精品网站日本xxxxxxx | 无码一卡二卡三卡四卡 | 羞羞答答.NT视频在线观看 | 国产精品视频你懂的 | 无码日本邻居大乳人妻波多野结衣 | 把腿张开看老子臊烂你免费 | 国产成人久久综合第一区 | 香蕉久久夜色精品国产尤物 | 嫩草影院地址一二三 | 在线一二三区国产色情无码电影 | 在线看片福利无码 | 把她日出水来太爽太紧了 | 最近高清中文在线观看国语字幕7 | 日韩欧美一区二区三区免费看 | 在线观看免费视频日本高清 | 青青草成人免费现看 | 中文字幕在线观看国产 | 王梦溪 bt | 最近中文在线中文 | 舌头添高潮A级毛片 | 天天干天天弄 | 日韩AV无码一区二区三区不卡毛片 | 国产资源一区 | 欧美无人区码卡二卡3卡4乱码 | 波多野结衣日韩 | 国产自偷| 男女激烈精交GIF动态图 | 国产成人福利 | 国产精品爽黄69天堂A片潘金莲 | 宝贝乖女好紧好深好爽老师 | 免费一级a毛片在线 | 美女裸乳裸体无遮挡免费A片软件 | 伊人蕉久中文字幕无码专区 | 国产亚洲精品久久久久的角色 | 亚洲天堂免费在线 | 在线观看成人片韩剧 | 99国产精品久久久久久久久久久 | 黄色免费观看视频网站 | 快播免费片毛网站 | 啪啪小说网 | 欧美剧场| 波多野结衣午夜 | 免费精品国偷自产在线读大二 | 国产AV一区二区三区人妻 | 国自产拍偷拍精品啪啪 | 亚洲精品v欧美精品动漫精品 | 欧美一线a观看 | 欧美性受 | 护士一级aaaaaa毛片 | 国产午夜福利小视频合集 | 欧美一级日韩一级 | 亚洲免费观看视频 | 国产在线视频资源 | 国产一起色一起爱 | 三妻四妾高清完整版在线观看免费 | 69SEX久久精品国产麻豆 | 成人电亚洲在线 | 亚洲人成影视 | 国内精品乱码卡一卡2卡三卡新区 | 亚瑟AV亚洲精品一区二区 | 欧美流行 在线播放 | 中文字幕卡二和卡三的视频 | 国产在线精品视频免费观看 | 99热久久这里只有精品 | 伦理片秋霞免费影院 | 老师的兔子好软水好多无弹窗 | 国产69精品久久久久99不卡 | 亚洲精品AV午夜一区二区三区 | 男JI大巴进入女人的视频 | 亚洲高清有码中文字 | 午夜精品福利在线导航小视频 | 国产互换人妻好紧HD无码 | 一级做a爱过程免费视频时看 | 国产三级日本三级韩国三级在线观看 | 又大又粗又爽免费视频A片 又大又爽又硬的曰皮视频 又大又硬又粗再深一点 | 在线看片一区 | 国产系列视频二区 | 欧美性爱 成人 | 国产又黄又刺激的免费A片小说 | 亚洲精品久久久无码大桥未久 | 一区精品在线 | 狠狠躁天天躁小说 | 日韩欧无码一区二区三区免费不卡 | 国产一级一片免费播放刺激 | 欧美精品在线看 | 免费无码又爽又刺激A片涩涩在线 | 88av在线视频 | 国产中文字字幕乱码无限 | 淫熟女 | 国产女人第一次做爰视频 | 天天玩天天干 | 美女18禁永久免费观看网站 | 欧美日韩高清一区二区三区 | 日韩色中色| 国产永久免费视频 | 国产五月色婷婷六月丁香视频 | h片在线 | 李宗瑞29.7g种子 | 九九精品国产亚洲A片无码 九九操视频 | 日韩欧美一及在线播放 | 午夜男人视频 | 男女一边摸一边做爽爽的免费文字 | 亚洲人成影视 | 国产熟妇搡BBBB搡BBBB搡 | 欧洲无码八A片人妻少妇 | 欧美伦无码电影大开眼戒 | 天天干天天日天天射天天操毛片 | 日本中文字字幕乱码电影直播 | 色欲狠狠躁天天躁无码中文字幕 | 成人免费黄网站 | 老师我好爽再深一点好舒 | 最新毛片网站 | 在线日韩欧美一区二区三区 | 中文有码视频在线播放免费 | 校园春色另类小说 | 男女啪啪抽搐高潮动态图 | 亚洲久操| 免费看高视频hh网站免费 | 久久国产精品免费A片蜜芽 久久国产露脸老熟女 | 日韩精品影视 | 久久综合九色综合狠狠97 | 欧美youjizz | 中文字幕在线视频免费观看 | 韩国理论片在线观看片免费 | 看看色播 | 蜜桃视频在线观看免费网址入口 | 欧美丰满大乳无码少妇 | 亚洲日韩视频 | 天天干天天操天天透 | 桃花色综合影院 | 欧美日本道免费二区三区 | 国产成人精品午夜免费 | 欧美午夜一区 | 97无码欧美熟妇人妻蜜 | 日本A片中文字幕精华液 | 中文字幕在线视频网 | 欧美日韩国产亚洲一区二区 | 在线免费成人电影 | 男人大JI巴做爰好爽视频 | 免费看的黄色网址 | 久久美女精品国产精品亚洲 | 新天堂网 | 91热久久免费频精品黑人99 | 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 3d肉蒲团bt种子 | 丰满人妻妇伦又伦精品APP国产 | 宅女午夜福利免费视频 | 亚洲色图在线观看视频 | 国产AV一区二区三区人妻 | 网站在线观看观看免费 | 专干老熟女A片 | 亚洲精品中文字幕无码A片老 | 成年香蕉大黄美女美女 | 99精品免费久久久久久久久日本 | 狠狠色婷婷日日综合五月 | 国产少又黄又爽的A片 | 欧美做愛坉片 | 日本黄色一区 | 四色在线| 久久精品国产99久久无毒不卡 | 亚洲一卡久久4卡5卡6卡7卡 | 强姧美女动态图片大全 | 九九国产在线 | 日本A级A做爰片免费观看 | 佐伯ゆきな | 国产精品一区高清在线观看 | 国产精品高潮呻吟久久影视A片 | 日本人妻A片成人免费看 | 天堂网在线www最新版在线 | 成年A片免费体验区120秒 | 自拍视频在线观看亚洲福利 | 撕开奶罩揉吮奶头的A片 | 久久精品中文騷妇女内射 | jizzjizz国产 | 伊在人线香蕉观看最新2018 | 免费永久在线观看黄网站 | 特级做A爰片久久毛片A片国 | 3及网站 | 2024人禽伦交 | 96免费精品视频在线 | 天堂国产在线观看 | 成片一卡三卡四卡免费网站 | 国产亚洲精品久久久久的角色 |