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

ponto quente

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

ukmfdwr

12 Oct 2025(atualizado 12/10/2025 às 08h17)

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

Temas

Compartilhe

Declara??o anual do MEI: veja prazo e como enviar para Receita Federal'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 software para trading na betfairits 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

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

Com foco no relacionamento, cooperativas de crédito investem em busca das vantagens do Open Banking enciclopédia e os enciclopédia explorar.

GRáFICOS

nos eixos

'Hearing my song played by Tokyo toilet was bizarre' says Rick Astley.txt

Open banking: entenda por que quem tem 'nome sujo' terá mais chances de conseguir crédito com o novo sistema abrangente e os lazer foco.

Navegue por temas

Quais os riscos do open banking? órg?os orientam consumidores sobre direitos e cuidados a serem tomados Pequenas Empresas & Grandes Negócios: contatos de 28/05/2023 Pequenas Empresas & Grandes Negócios: contatos de 21/05/2023 Open banking: saiba como a 3a fase será integrada ao PIX 'Sentiremos falta das campanhas memoráveis de Washington Olivetto, que inspiraram e emocionaram gera??es', diz Paulo Marinho, diretor-presidente da Globo Sabina Simonato assume interinamente a apresenta??o do 'Bom Dia S?o Paulo' Rupert Murdoch perde batalha na guerra pela sucess?o da Fox Open banking x open finance: entenda a diferen?a entre os sistemas Imposto de Renda 2025: Receita abre consulta ao 1o lote de restitui??o na sexta-feira; veja como fazer Como evitar que golpistas usem o open banking para obter seus dados? Veja dicas
国产乱码精品一区二区三区四川 | 欧美区bt| 国产国产精品人在线观看 | 2018一级毛片免费观看 | 日本3级网站 | 韩国视频一区 | 麻豆精品一卡二卡三卡 | 日本不卡高清免费v日本 | 男插女爽到内射的视频 | 全黄H全肉短篇n男男 | 在线乱码一卡二卡麻豆 | 久久精品视频在这里16 | 免费无码又爽又刺激A片小说在线 | 精品久久免费观看 | 韩国羞羞秘密教学子开车漫书 | 久久久国产99久久国产一 | 性色网站 | 嗯啊快拔出来我是你老师 | 看一级毛片一区二区三区免费 | 蜜桃色永久入口 | 日韩视频精品在线 | 国产国语 毛片高清视频 | 午夜影视体验区 | 精品国产自在现线拍一本 | 亚洲婷婷国产精品电影人久久 | 黄色免费在线网站 | 人人干人人爽 | 囯产精品宾馆在线精品酒店 | 美女裸身大乳图片大全 | 亚洲2024无矿砖码砖区 | 疯狂撞击美妇雪白的大肉臀 | 天天躁| 日韩亚洲全网最全无码 | 91精品国产91 | AV剧情麻豆映画国产在线观看 | 真人做爰片免费视频毛片中文 | 日操夜操 | 亚洲国产欧美目韩成人综合 | 99re6在线视频免费精品 | 亚洲精品国产一区二区 | 国产精品永久免费视频 | 久久久久久全都是精品app | 男女做爰全过程免费现看 | sss色视频 | 婷婷综合久久狠狠色 | 四虎2024最新免费观看 | 真人一级一级特黄高清毛片 | 成人乱人乱一区二区三区 | 亚州春色 | 午夜精 | 欧美成人性色xxxxx视频大 | 久久精品国产99久久无毒不卡 | 永久免费看A片无码网站四虎 | 精品无人区一区二区三区 | 香港三级韩国三级日本三级 | 性xxxx奶大欧美高清 | 91视频蝌蚪 | 女色综合| 肉蒲团从国内封禁到日本成经典 | 色综合久久久久 | 亚洲AV在线一区二区三区 | 情色五月天首页 | 国产精品久久久久久吹潮 | 久久视频在线视频精品 | 亚洲午夜A片一区二区 | 成片一卡三卡四卡免费网站 | 亚洲伦理在线观看 | 校花裸体扒开两腿让我桶 | 日本高清不卡中文字幕视频 | 日韩一区二区三区视频在线观看 | 一级不卡毛片免费 | 久久草草亚洲蜜桃臀 | 把腿张开看老子臊烂你免费 | 男Ji大巴进入女人的视频小说 | 国产精品视频一区牛牛视频 | 受被三个攻各种道具PLAY | 亚洲午夜久久久精品影院 | AV无码A片高潮AV | 麻豆国产人妻欲求不满 | 亚洲婷婷六月的婷婷 | 色婷婷国产熟妇人妻露脸AV | 天天操夜夜操美女 | 巨人精品福利官方导航 | 日本A片色情AAA片WWW | 奇米狠狠一区二区三区 | 亚洲精品久久久久久久久久久 | 日韩精品影视 | 天天摸夜夜添夜夜添A片小说 | 91黄色片| 色欲AV亚洲永久无码精品麻豆 | chinese熟女熟妇m1f | 亚洲AV久久综合无码东京 | 国产一国产看免费高清片 | 伊人激情AV一区二区三区 | 久久综合久久综合久久 | A片做爰片仑理片免费看 | 亚洲色大成网站WWW永久在线观看 | 男女啪啪做爰高潮全过图片 | 伊人久久大香线蕉免费视频 | 玖玖在线资源 | 久久99久久99精品观看 | 亚洲图片日本视频免费 | 亚洲国产成人久久综合区 | 97国产露脸精品国产麻豆 | 最好韩国日本高清免费 | 好硬啊进得太深了A片无码公司 | 这里只有精品在线观看 | 亚洲欧美一级久久精品 | 一区二区播放 | 十八种看黄禁用软件APP入口 | 欧美精品hdxxxxx | 伦理片韩国免观看 | 亚洲 欧美 制服 | 成人亚洲欧美日韩在线观看 | 高清在线免费观看完整版电影大全 | 激情欧美乱妇 | 亚洲第一AAAAA片 | 成人 网 | 毛片网站免费 | 国产精品免费一级在线观看 | 日韩视频一区二区 | 最近免费高清版电影在线观看 | 性av网址大全 | linode日本iphone强汉视频 | 日韩精品一区在线观看 | 日本免费无码A专区在线观看 | 中文字幕一区在线观看 | 千涩论坛| 少妇大叫太大太粗太爽了A片在线 | 97视频免费在线 | 男Ji大巴进入女人的视频小说 | 人妻体内射精一区二区 | 成年黄网站 | 国产精品日韩欧美一区二区三区 | 中文字幕完整视频高清 | 亚洲欧洲日韩另类自拍 | 欧美黑人性黑人猛交视频 | 精品 在线 视频 亚洲小说 | 日韩a级片 | 亚洲jizzjizz中文在线播放 | xxxww免费看| 久久久久久久久66精品片 | 成人18网站| 国产福利视频 | 永久域名18勿进永久域名3XCC | 99re免费视频 | 久久99精国产一区二区三区四区 | 中文在线资源链接天堂 | 成人 网| 快穿女主有名器的H纯肉黄暴拉文 | 国产在线精品视频免费观看 | 亚洲精品久久无码AV片动漫网站 | 97在线免费视频观看 | 中文不卡一卡二卡 | 欧美亚洲另类热图 | 男人把女人桶到爽免费看视频 | 高清色视频 | 一个人看的高清视频日本 | 有码一区| 99国产亚洲精品无码成人 | 成年人在线免费网站 | 国产成人一区二区三区影院动漫 | 99国产精品久久人妻无码 | 国产亚洲欧洲日韩在线观看 | 亚洲国产第一区二区三区 | 欧美日本一区二区三区 | 欧美亚洲高清国产 | 网站黄色在线观看 | 日本三级香港三级国产三级 | 国产日韩在线 | 最近最新中文字幕免费的一页 | 囯产精品一区二区三区线 | 一级高清毛片免费a级高清毛片 | 亚洲精品一区国产欧美 | 色妞AV永久一区二区国产AV开 | 最近最新2019中文字幕 | 在线观看污网站 | 成人深夜福利视频 | 黄色片免费播放 | 日日摸夜夜添夜夜添A片公司 | 99精品国产免费久久国语 | 国产黄网永久免费 | 日韩有码在线观看 | 久久国内精品自在自线 | 玖欧美性生交XXXXX无码 | 小日本在线观看免费视频 | 中出内射颜射骚妇 | 欧美黄色大片免费观看 | 国产剧情福利AV一区二区 | 77788色婬在线视频 | 四虎影视www四虎免费 | 8x成人永久免费视频 | 好屌草这里只有精品 | 韩国日本三级在线播放 | 亚洲精品久久久久久动漫 | 日韩欧美视频一区二区在线观看 | 精品无人妻一区二区三区 | 色综合综合色综合色综合 | 把娇妻借给朋友泄欲4 | 男人和女人做爽爽视频免费 | 波多野结衣免费在线 | 中文字幕欧美在线观看 | 亚洲欧美日韩中文在线制服 | 天天躁日日躁狠狠躁 | 果冻传媒破解版 | 老司机午夜精品视频在线观看免费 | 男人天堂网夜色99视频 | 开心四播网 | 老湿机福利视频 | 无码激情做A爰片毛片A片小说 | 亚洲无人区码二码三码区别图 | 麻花传媒沈芯语老师视频 | 在线不卡日本v二区三 | 少妇被粗大的猛烈的进出69影院 | 亚洲无人区码二码三码区别图 | 精品人妻无码一区二区三区下一页 | 日日摸夜夜添夜夜添A片公司 | 九九久久香港经典三级精品 | 日韩在线一区二区三区视频 | 无码精品人妻一区二区三区颖A片 | A片扒开双腿猛进入免费观 A片好大好紧好爽视频免费 | 国产精品久久人妻无码网站蜜臀 | 久久天天丁香婷婷中文字幕 | 五月婷婷激情在线 | 久热国产vs视频在线观看 | 色情无码永久免费网站APP | 99热在线精品免费播放6 | 国产午夜精品视频在线播放 | 日本在线免费 | 在线电影网站免费 | 男女做爰的全部过程A片 | 韩国三级一区 | 日韩一区二区三区免费视频 | 精品久久久久久 | 天天操夜夜操狠狠操 | 最近中文国语字幕在线播放 | 欧洲一卡2卡3卡4卡5卡欧美 | 六月丁香七月婷婷 | 爽爽爽无码AV在线观看 | 亚洲成人黄色在线 | 亚洲午夜无码毛片AV久久 | 老师好大乳好紧好深动态图 | 成人激情小视频 | 久久99AV无色码人妻蜜柚 | 88av在线看 | 欧美一区二区三区红桃小说 | 日韩欧美不卡一区二区三区 | 日韩精品1 | 久久国产三级精品 | 女人18片毛片60分钟 | 99热r| 欧美日韩国产中文高清视频 | 国产在线观看www | 午夜一级做a爰片久久毛片 午夜亚洲视频 | 波多野结衣在线资源 | 亚洲精品国产精品国自产小说 | 99久久亚洲精品日本无码 | 少妇P毛又多又黑A片免费 | 人人做人人爽人人爱秋霞影视 | 欧美 亚洲 在线播放 | 天堂亚洲网 | 99久久国产免费 - 99久久国产免费 | 国产伦亲子伦亲子视频观看 | 2022国产成人福利精品视频 | 麻豆视传媒官方网站入口 | 综合久久久久综合体桃花网 | 成人国产三级在线播放 | 黄网站色视频大全免费观看 | 日本三级韩国三级香港三级a级 | 逍遥五月天 | 公与妇仑乱HD | 国产亚洲精品久久无码小说 | 最美女人体内射精一区二区 | 日本最新免费二区三区 | 国产人久久人人人人爽 | 欧美性生交18XXXXX无码 | 精品久久久久久免费影院 | 波多野结衣中文一区 | 国产成人www免费人成看片 | 日本调教网站 | 日韩v| 欧美日韩免费一区高清 | 99re热视频 | 免费毛片网站在线观看 | 日日碰狠狠躁久久躁婷婷 | 亚洲精品AV中文字幕在线 | 最好看的最新的中文字幕 | 最后一夜无删减版在线观看 | 性色AV乱码一区二区三区 | 成人AV综合在线网站 | 香港三级韩国三级日本三级 | 在线欧美中文字幕农村电影 | 无码日本邻居大乳人妻波多野结衣 | 成人国产精品免费网站 | 总有一天在线完整免费观看 | 国产精品久久精品 | 最新国产三级 | a级片播放 | 国产又色又爽又高潮免费视频麻豆 | 国产成人禁片免费观看 | 国产亚洲精品视频在线网 | 丁香五月情 | 国产精品99久久免费黑人人妻 | 波多野结衣免费一区二区三区香蕉 | 性a爱片免费视频性 | 一级不卡毛片免费 | 毛茸茸性毛茸茸大b | 色老头xxxxbbbb视频 | 久久精品国产99国产精品免费看 | 三色黄A片免费播放335VCC | 欧美日本一道高清二区三区 | 秋霞成人午夜鲁丝一区二区三区 | 日本高清免费一本视频无需下载 | 久久精品高清视频 | 日本xxxxx18护士xxx | 国产视频网站在线观看 | 男人女人做爰图 | 日韩日韩精品无砖专区2020 | 忘忧草日本在线社区WWW电影 | 国产人妻无码专区精品 | 黄毛片 | 国产乱妇乱子在线播视频播放网站 | 再深点灬舒服灬受不了了视频 | 色综合天天综合网 | 黄色一级视频在线播放 | 欧美女人xx | 久久久久久九九 | 国产精品内射久久久久欢欢 | 亚洲一区AV在线观看无码漫画 | 美女视频黄的全是免费 | 丁香婷婷六月综合缴清 | 性配久久久| 黑人强伦姧人妻日韩那庞大的 | 精品无人乱码一区二区三区的优势 | 这里只有精品视频在线 | 出差被公添到高潮A片视频 厨房少妇人妻好深太紧了 纯肉1女多n男全文阅读 | 欧美日本一道高清二区三区 | 亚洲婷婷国产精品电影人久久 | 饥渴少妇A片AAA毛片小说 | 九操网| 蜜臀国产在线 | 免费看黄的网站在线看 | 日本一卡二卡三卡四卡无卡免费播放 | 亚洲精品久久久久久一区 | 国产在线观看免费视频软件 | www在线小视频免费 XL上司带翻译不打马赛 | 最近免费中文字幕高清大全 | 强奷皇后娇呻浪吟前后夹击 | 三级专区 | 91香蕉视频免费 | 可以免费看的卡一卡二 | 麻豆免费观看高清完整视频在线 | 国产精品伦一区二区三级视频 | 无码高潮又爽又黄A片 | 黄色在线免费观看网站 | 少妇做爰特黄A片免费看9588 | 97色伦图片97综合影院 | 天天天天做夜夜夜做 | 色哟哟精品网站在线观看 | 国产免费A片好硬好爽好深小说 | 女人十八毛片A级十八女人 女人十八毛片A片久久18 | 四虎影视影院电影在线 | 麻豆国产精品色欲AV亚洲三区 | 成人性生交A片免费观看 | 久久夜色精品国产飘飘 | 国产成人一区二区三区别 | 毛片资源 | 天天综合视频网 | 波多久久夜色精品国产 | 久久中文字幕无码A片不卡古代 | 日本jizz中国 | 精品一区二区久久久久久久网站 | 国产熟女系列丰满熟妇 | 国产 欧美 亚洲 日韩视频 | 日韩精品一区二区三区在线观看l | 亚洲伊人久久综合成人 | 国产在线拍揄自揄拍免费下载 | 50路60路老熟妇啪啪 | 97SE亚洲精品一区 | 狠狠狠色丁香婷婷综合久久88 | 四房色播在线电影 | 精品亚洲日韩国产一二三区 | 久久精品视频在线直播6 | 欧美日韩一区二区三区四区在线观看 | 午夜精品A片一区二区三区 午夜激情在线观看 | 国产精品无码人妻系列AV | 成年女人免费播放影院 | 毛片视频网址 | 午夜专区 | 丁香六月激情 | 午夜有码 | 九九精品视频一区二区三区 | 韩剧国语版你是我的命运 | 久久国产毛片 | 最近免费更新中文在线观看 | 国产免费无码成人A片在线观看 | 国产做A爰片久久毛片A片软件 | 国产MD视频一区二区三区 | 乱码AV午夜噜噜噜噜 | 荡翁乱妇小说 | 九一传媒果冻制片厂 | 波多野吉衣42部在线播放 | 亚洲中文字幕一二三四区苍井空 | 熟女人妻上司中文字幕 | 论理电影在线观看 | 麻豆一二三区AV传媒 | 狠狠色视频 | 韩国视频在线观看高h | 久久久无码精品一区二区三区 | 亚洲网站免费 | 国产a免费观看 | 美国三级日本三级久久99 | 久久精品国产99国产精品澳门 | 国产成人综合网 | 国产精品高潮呻吟AV久久动漫 | 日本久久久久久久久久 | 黄色片免费播放 | 国产SUV精品一区二区四区三区 | 久久国产精品久久精 | 另类在线 | 欧美无人区码卡二卡3卡4免费 | 亚洲人成网亚洲欧洲无码 | 粗暴肉开荤高H文公交车 | 97国产精东麻豆人妻电影 | 日本aaaaa高清免费看 | 亚洲精品一区二区三区福利 | 999久久久成人A片精品免费看 | 欧美激情视频在线观看一区二区三区 | 中文字幕乱倫视频 | 国模左儿 | 亚洲啪 | 日本高清无卡码一区二区久久 | 成人午夜视频在线 | 日韩色区 | 免费看高视频hh网站免费 | 色偷偷亚洲第一成人综合网址 | 天天精品在线 | 欧美综合自拍亚洲综合图 | 天堂√最新版中文在线天堂 | 提枪进洞风云涌玉门迎 | 大香区一二三四区2024 | 日韩免费一级 | jizz视频 | 天天操夜夜操 | 日韩精品高清自在线 | 亚洲国产成人精品激情 | 日韩一区二区三区中文字幕 | 天天夜夜操 | 久久99国产综合精品AV蜜桃 | 99热免费在线 | 亚洲中文字幕无码一久久区 | 中文字幕日本一区 | 国产在线精品一区二区在线看 | 日韩欧美一级 | 国产精品高潮呻吟AV久久动漫 | 四川老熟妇乱子XX性BBW | 婷婷四月开心色房播播网 | 九九九九在线精品免费视频 | 久久热这里有精品 | 久久国语精品 | 国产精品成人无码A片免费网址 | 校草被老师肉到失禁H | 精品伊人久久大线蕉色首页 | 九色综合久久综合欧美97 | 亚洲精品123区 | 香蕉视频在线免费播放 | 婷婷亚洲五月 | 少妇高潮灌满白浆毛片免费看 | 欧美激情性AAAAA片欧美 | 亚洲精品黄 | 美女扒开胸罩露出奶头的图片 | 一体验区试看120秒 一体一道久久88色合综合网 | 岳 好紧好爽再浪一点 | 国产精品一区二区资源 | 日本高清视频在线观看 | 国产免费午夜高清 | 视频69式 | 国内精品七七久久影院 | WWW色情成人免费视频 | 亚洲AV久久无码精品九九软件 | 最近新韩国hd视频 | 亚洲精品久久无码午夜小说 | 亚洲欧美一区二区三区图片 | 午夜视频在线免费 | 日韩国产精品人妻无码久久久 | 亚洲第一卡二新区乱码 | 日本无码毛片一区二区手机看 | 精品人妻无码一区二区三区狼群 | 深夜福利欧美 | 欧美日韩在线视频观看 | 五月天亚洲图片婷婷 | 五月婷婷六月丁香在线 | 99视频免费在线观看 | 亚洲人精品午夜射精日韩 | 精品人妻人人爽久久爽AV | 亚洲偷怕 | 精品成人无码A片免费软件 精品AV综合一区二区三区 | 小说高黄全肉 | 午夜精品一区二区三区在线视 | 亚洲AV国产SUV| 玩弄少妇高潮A片XXX | 大香线蕉视频伊人99 | 亚洲一区欧洲一区 | 欧美成人一级 | 国产女人与黑人在线播放 | 色视频免费版高清在线观看 | 一级毛片美国 | 晓雪老师我要进你里面好爽 | 国产日本一线在线观看免费 | 国产精品久线观看视频 | 国产高清自偷自在线观看 | 男女阳茎牲交32动态图片免费 | 听党话跟党走始终是共青团坚守的 | 午夜久久久久久禁播电影 | 国产亚洲成AV人片在线观黄桃 | 午夜毛片在线观看 | 青草国产在线视频 | 欧美69久成人做爰视频 | 人人爽久久久噜噜噜丁香AV | 亚洲国产人久久久成人精品网站 | 阳茎进去女人阳道过程免费看 | 天天操天天操天天操 | 中文字幕日本特黄AA毛片 | sss欧美一区二区三区 | 香蕉人人精品 | 医生护士一级毛片 | 精品一区二区三区在线成人 | 国产三级久久久精品三级 | 通房公子| 中文字幕欧美一区 | 成人午爽爽爽A片免费下载 成人午夜A片产无码免费视频日本 | 波多野结衣torrent | 久久国产精品国语对白 | 女人aaaaa片一级一毛片 | 色婷婷在线视频观看 | 开心婷婷网 | 大香伊人中文字幕精品 | 国产精品爱久久久久久久小说 | 国产激情在线观看完整流畅 | 国产精品日产三级在线观看 | 狠狠躁日日躁夜夜躁2024麻豆 | 拍拍拍无遮挡高清视频在线网站 | 饥渴的少妇黑人在线观看 | 强壮公让我夜夜高潮A片 | 久久久久久亚洲精品影院 | 国产黄色片在线播放 | 日韩国产精品欧美一区二区 | 一二三区乱码不卡手机版 | www.四色| 国产成人精品123区免费视频 | 无限观看社区在线观看免费 | 亚洲国产成人久久 | 日韩欧美一区二区三区在线 | 午夜91视频| 狠狠干狠狠操 | 又黄又爽吃奶视频在线观看 | 亚洲欧美中文日韩综合图区 | 亚洲手机中文字幕 | 国产大片一区 | 波多野结衣全部系列在线观看 | 深夜性久久 | good日本网站三级 | 波多野结衣一区二区 | 狠狠撸 撸你喜欢 | 欧美操片在线观看 | 色婷婷一区二区三区四区成人网 | 国产伊人久久 | 欧美精品手机在线 | 晚娘上部恋欲 | 4虎在线永免费最新 | 2022亚洲男人天堂 | 色鬼网站 | 日产乱码一卡二卡三免费 | 最新版天堂中文在线 | 毛片内射久久久一区 | 办公室疯狂高潮呻吟摸揉A片欧美 | 婷综合 | 亚洲 欧美 制服 中文字幕 | 天堂网一区二区 | 日本最新免费二区 | gay男打屁股视频网站 | 国产另类ts人妖一区二区 | 深爱激情五月婷婷 | 在线看免费完整欧美电影网站 | 成人做爰视频WWW在线观看 | 尤物永久网站 | 婷婷人人爽人人爽人人A片 婷婷色情 | 好看的电影网 | 最近日本韩国高清免费大全 | 亚洲欧美日本国产高清 | 少年巴比伦免费完整在线观看 | 国产AV一区二区熟女人妻 | 色综合天天综合 | www.亚洲天堂 | 色网站视频 | 日韩久久一区二区三区 | 日本高清在线中文字幕网 | 国产成人一区二区三区别 | 亚洲精品久久久午夜麻豆 | 欧美成人精品A片免费区网站 | 久久久久久不卡 | av在线观看网站免费 | 五月天婷婷在线视频国产在线 | 古装一级无遮当一级毛片 | 精品一卡2卡三卡4卡乱码免费 | 波多野结衣xfplay在线观看 | 色偷偷WWW.8888在线观看 | 999色综合| 麻豆国产精品AV色拍综合 | 国产真实伦在线观看视频 | 日韩精品中文字幕在线观看 | 成人欧美一区二区三区白人 | 久久久99精品久久久 | 日本成人免费在线观看 | 欧美AAAAAA片黑寡妇 | 影音先锋在线亚洲网站 | 欧美三级在线播放线观看 | 免费无码国产欧美久久18 | 五月婷婷丁香色 | 人妻体内射精一区二区 | 真实国产乱子伦视频对白 | 韩国精品一区二区 | 欧美无卡 | 日本人妻精品免费视频 | 少妇被躁爽到高潮无码麻豆AV | 国内自拍网 | 在线成人免费观看国产精品 | 欧美又粗又大AAAAA级毛片 | 国产成人精品一区二区三区影院 | 我可以再往深处一点吗视频 | 性色AV久久一区二区 | 两性午夜色视频免费网站 | 受在寝室被多攻高H男男小说 | 国偷自产一区二区免费视频 | 99re6在线视频| 久久久九色综合亚洲成色777 | 日本三级免费网站 | 国产在线观看香蕉视频 | 久久久国产精品福利免费 | 情侣摸抱揉捏吃奶的影院 | 亚洲午夜小视频 | 国产精品最新资源网 | 97视频在线播放 | 欧美成人A片免费无码毛片 欧美成人大色情大片破碎的拥抱 | 窝窝视频网看免费 | 四虎影视在线影院在线观看 | 天天干天天草天天 | 日日摸天天爽天天爽视频 | a天堂v| 无套和妇女做内谢 | 色哦色哦哦色天天综合 | 国产成人久久婷婷精品流白浆 | 国语熟妇乱人乱A片久久 | 特级毛片| 天堂亚洲欧美日韩一区二区 | 成人无码A片一区二区三区免 | 老师我好爽再深一点办公室 | 青草青青在线 | 少年巴比伦免费完整在线观看 | 亚洲日本精品va中文字幕 | 口工里番h本无遮拦全彩 | 丝瓜视频未满十八严禁 | 国产一卡2卡3卡4卡公司 | 国产一区在线看 | 国产xxxx| 自拍视频综合在线精品 | 久久久久久久综合狠狠综合 | 欧美人成在线观看ccc36 | 午夜视频福利在线观看 | 中餐厅5季几号播出 | 香港aa三级久久三级不卡 | 国偷盗摄自产福利一区在线 | 中文区中文字幕免费看 | 欧美性bbbbbxxxxxddd | 国精品人妻无码一区二区三区喝尿 | XL上司在线完整版无马赛克 | 色四房播播 | 欧美在线亚洲 | 97丨九色丨国产人妻熟女 | 在线黄色播放 | 人善交videohd另类 | 色豆豆永久免费网站 | 中文字幕电影乱码在线观看 | 免费播放一卡二卡三卡 | 国产精品久久久久久久久久98 | 日本后进式猛烈xx00动态图 | 中文字幕无码A片久久 | 好爽好紧好大的免费视频国产 | 国精产品999永久中国有限 | 国产手机精品一区二区 | 日本久久久WWW成人免费毛片丨 | 秋霞在线看片无码免费 | 伊人久久精品AV一区二区 | 国产亚洲精品久久久AI换脸区 | 在线看黄色网址 | 国产精品久久久久无码人妻精品 | 91精品网站天堂系列在线播放 | 亚洲区色情区激情区小说公 | 久久久天堂国产精品女人 | 中文字幕无限乱码不卡2021 | 做A爰片久久毛片A片的价格 | 无码区国产区在线播放 | 大胆毛茸茸的湿户 | 成 人毛茸茸的视频 | 欧美激情综合色综合啪啪五月 | 99久久无码一区人妻A片蜜臀 | 久久精品国产福利国产琪琪 | 99精品国产三级在线观看 | 在线www天堂资源网 在线v片 | 堂色品 | 又色又爽又黄的视频网站免费 | 人妻夜夜爽天天爽三区麻豆AV网站 | 二级片名 | 免费在线观看黄色小视频 | 伊人影院亚洲 | 想见你电影版免费观看 | 强被迫伦姧高潮无码A片漫画 | 最近韩国动漫免费观看视频 | 色翁荡息肉欲系列小说 | 专干老熟女A片 | 天天操夜夜操视频 | 欧美人妻无码A级视频 | 日韩欧美中文字幕一区 | 最新国产精品自拍 | 天天操天天干天天做 | 婷婷夜色 | 免费看欧美换爱交换乱理伦片 | 天堂在线最新资源 | 黄色免费网站视频 | 欲女熟妇国产一区二区 | 精品日韩免费视频在线观看 | 欧美V亚洲V综合V国产V | 8x成人永久在线观看视频 | 丰满人妻妇伦又伦精品国产 | 国产精品露脸脏话对白 | 日日夜夜噜 | 内射丰满高大五十五岁熟女 | 色播播电影 | 欧美日韩在线看 | 涩欲国产一区二区三区四区 | 五月婷婷啪 | 黄色片黄色片黄色片黄色片黄色片 | 在线日本高清日本免费 | 人妻奶水人妻系列 | 狠狠插视频 | 国产日韩视频一区 | 免费国产黄网站在线看品善网 | 扬名立万免费观看完整版 | 黄色xxxxxx| 欧美国产大片 | 狠狠色噜噜狠狠狠狠狠色综合久久 | 精品国产乱码久久久久久软件大全 | 99精品久久久久久久免费看蜜月 | 精品91自产拍在线观看99re | 成人无码A片一区二区三区免 | 亚洲午夜无码毛片AV久久久久久 | 就去色成人网 | а中文在线天堂 | 日韩一级一欧美一级国产 | 久久91久久91精品免费观看 | 天天做天天爱天天综合网2021 | 亚洲三级在线 | 国产强伦姧人妻一区二区 | 99视频偷窥在线精品国自产拍 | 午夜福利麻豆国产精品 | 在线看a片| 欧美性做爰又大又粗又长 | 一级一级特黄女人精品毛片视频 | 狠狠综合久久久久综合 | 日本啊啊视频 | 日韩免费一级a毛片在线播放一级 | 日本黄H兄妹H动漫一区二区三区 | 天天做天天爱天天操 | 91成人免费在线视频 | 一个人看的www视频高清免费 | 欧美日韩午夜精品不卡综合 | 内射爽无广熟女亚洲 | 久久6热 | 精品一区二区三区在线成人 | 日本护士激情波多野结衣 | 亚洲第一国产 | 国产女同视频 | 日本酷刑bdsm成人 | 久久免费看少妇高潮A片JA | 第四色亚洲 | 日本国产欧美 | 青草青草久热精品观看 | 黑人巨茎大战白人女40CMO | www.av免费| 再深点舒服灬太大了添A片 在办公室里揉护士的胸 | 日韩操| 国产一区二区三区在线视频 | 五月婷婷六月丁香 | 黄色在线视频播放 | 国产亚洲麻豆精品AA片在线观看 | 在免费JIZZJIZZ在线播放视频 | 亚洲AV久久婷婷蜜臀无码不卡 | 亚洲AV无码精品蜜桃 | 丝袜捆绑vk |