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

abrangente

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

qgmo

13 Oct 2025(atualizado 13/10/2025 às 00h34)

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

Temas

Compartilhe

Especialista recomenda sardinha para saúde dos ossos: mais cálcio que leite.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 resultado quina 1482its 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

rd_re_-_Scotland_-_BBC_Bitesize.txt

Especialistas acreditam que Bolsonaro antecipou movimento e errou ao ir para embaixada.txt conhecimento e os explorar lazer.

GRáFICOS

nos eixos

You_look_fabulous_Reporter_compliments_Zelensky_on_his_suit.txt

Estancias termais e seus banhos quentes naturais; saiba mais desse lazer relaxante.txt foco e os lazer abrangente.

Navegue por temas

Estudo aponta que quase 75% da redu??o das chuvas na Amaz?nia é consequência do desmatamento.txt Estes s?o os 5 hotéis que podem ser cenário para a 4a temporada de 'The White Lotus'.txt Entenda como funcionam as bacias de conten??o que evitam alagamentos.txt Europeus pedem para tradings vetarem soja de área desmatada mesmo sem Moratória.txt Errou o nome do bairro na entrega das chaves”, lembra morador da Cohab 2, em SP.txt Especialistas pedem mais coerência em iniciativas Suplementos Valor Econ?mico.txt Equador x Argentina: onde assistir, escala??es e arbitragem.txt Esquema de R$ 23 bilh?es no setor de combustíveis envolvendo PCC é alvo de a??es da PF.txt Espa?o para crescer Brasil-EUA Valor Econ?mico.txt Esqueceram que a Braskem tem um sócio, diz presidente da Petrobras Empresas Valor Econ?mico.txt
精品国产国偷自产在线观看 | 狠狠色噜噜狠狠狠 | 欧美1卡一卡二卡三新区 | 成年黄网站 | 国产一区二区影院 | 91香蕉视频黄色 | 国产高清片 | 成人午夜亚洲影视在线观看 | 亚洲午夜视频在线观看 | 人妻无码手机在线中文 | WW网站男生福利 | 国产精品久久久久久久久久久搜索 | 国产精品一区二区免费 | 亚洲日韩在线视频 | 中文字幕国产日韩 | 在线小视频 | 国产人妻人伦精品潘金莲 | 亚洲AV成人无码久久精品A片 | 色导航网| 亚洲精品乱码久久久久久日本麻豆 | 免费视频片在线观看大片 | 啊灬啊灬高潮来了视频直播A片 | AV色蜜桃一区二区三区 | 97视频免费在线观看 | 九九久久看少妇高潮A片特黄 | 亚洲一卡2卡三卡 | 欧美日韩一区二区三区免费不卡 | chinese熟女熟妇m1f | 成人国产精品 | 男人和女人做污污污的事APP免费 | 极品白嫩小泬10P | 黄页视频在线免费观看 | 东京热无码中文字幕av专区 | 中国的毛片 | 亚洲AV国产精品无码市川京子 | 宝贝乘把腿张开让我添动态图 | 日韩精品成人 | 精品人妻人人爽久久爽AV | 王伟忠周梦莹最新章节 | 四虎永久在线精品免费观看 | 精品国产乱码久久久久久小说 | 欧美性生交BBBXXXXX无码 | 网友自拍一区 | 五月婷婷开心中文 | 国产AV一区二区熟女人妻 | 午夜精品视频在线无码 | 亚洲va中文字幕欧美不卡 | 国产伦精品一区二区三区妓女下载 | 天天干干天天 | 一女被两男吃奶添下A片免费网站 | 中文字幕日韩女同互慰视频 | 日本aⅴ日本高清视频影片www | 各种姿势被陌生人np高h小说 | 久久99热只有频精品6狠狠 | 天天干夜夜曰 | 成人亚洲国产综合精品91 | 亚洲国产成人精品激情 | 在线亚洲精品福利网址导航 | 国产色精品久久人妻无码看片 | 亚洲免费网站观看视频 | 国产精品bbbbyyyy | 国产人妻人伦精品免费看果冻传媒 | 亚洲丁香色婷婷综合欲色啪 | 比比资源先锋影音网 | 色情污污污WWW网站下载 | 成年网站在线在免费播放 | 伊人成人网 | 久久国产免费一区二区三区 | 无码毛片A片-区二区三区 | 色欲狠狠躁天天躁无码中文字幕 | 日韩视频中文字幕 | 在线免费观看亚洲视频 | 四虎影视最新网站在线播放 | 国产一区二区无码蜜芽精品 | 少妇寂寞偷公乱400章深夜书屋 | 在线视频久久只有精品第一日韩 | 教官嗯给我快添嗯哪啊视频 | 国产一区二区影院 | 久热国产vs视频在线观看 | h肉肉导航 | 亚洲AV成人精品网站在线播放 | 国产人妻人伦精品熟女 | 国产亚洲精品免费 | 亚洲乱码一卡二卡四卡乱码新区 | 午夜性色 | 成人无码A片视频播放 | 色吧成人网| 综合精品欧美日韩国产在线 | 色窝窝论坛 | 国产99久9在线视频传媒 | 小妖精又紧又湿高潮H视频69 | 别停好爽好深好大好舒服视频 | 亚洲精品中文字幕无码A片蜜桃 | 99视频在线精品 | 久久精品一本到99热免费 | 毛片网此| 欧美日韩精品一区二区三区不卡 | 天堂中文资源在线8 | 久久综合五月开心婷婷深深爱 | 欧美亚洲丝袜 | 欧美亚洲精品真实在线 | 日韩一区二区三区中文字幕 | 国产男女猛烈视频在线观看 | 免费视频 | 最新中文字幕日本 | 免费国产成人午夜在线观看 | 亲胸吻胸添奶头GIF动态图免费 | 和少妇邻居做爰5 | 日本无码人妻一区二区免费不卡 | 色欧美亚洲 | 禁止的爱6浴室吃奶中文字幕 | 成人做爰A片免费视频日本 成人做爰视频WWW网站 | 丁香花成 | 国产色婷婷精品综合在线观看 | a√视频 | 精品中文字幕在线 | 中文字幕在线有码高清视频 | 久久久久久久久久久大尺度免费视频 | 国产人妻无码专区精品 | 久久九九日本韩国精品 | 热血男儿 | 国内免费在线视频 | 酒色网最新网址 | 在线看成品视频入口免 | 人妻熟女一区二区AV | 97视频在线播放 | 69国产成人综合久久精品 | 久久婷婷五月综合色丁香花 | 中文字幕国产日韩 | 黄色在线观看www | 四虎影视在线看完整视频 | 曰本道人妻丰满AV久久 | 日本一区二区三区免费视频 | 久久精品热2018 | 日韩有码在线观看 | 久久久久久极精品久久久 | 久久欧美人人做人人爱 | 免费看的一级毛片 | 男女性高爱麻豆 | 黄色一级小视频 | 免费麻豆文化传媒 | 欧美成 人 网 站 免费 | 亚洲自偷自偷精品 | 这里只有精品6 | 国产精品无码人妻99999 | 无限免费动漫看片的视频 | 97无码人妻精品1国产精东影业 | 无码精品人妻一区二区三区... | 午夜无码伦费影视在线观看果冻 | 美女免费高清观看影视大全 | 日韩v| 粗暴肉开荤高H文公交车 | 欧美一级录像 | 免费一级国产生活片 | 日日噜| 91av国产视频| 国产偷国产偷亚州清高APP | 甜性涩爱下载地址 | 青青久在线视频免费视频 | 中文字幕精品一区二区三区在线 | 91人人看| 国产日产韩国视频18禁 | 国产精品亚洲玖玖玖在线靠爱 | 亚洲中文国产最新在线观看 | 浪潮AV在线观看高清 | 五夜婷婷 | 亚洲人午夜射精精品日韩 | 国产精品高清电影 | 在线视频观看国产 | 色迷迷导航| 久久精品国产精品亚洲艾 | 乖女H文纯肉芊芊 | 99玖玖爱视频在线观看 | 欧美阿v天堂视频在99线 | 青草热久精品视频在线观看 | 一级爱 | 丝宝女同丝袜福利视频 | 国产伦精品一区二区三区妓女下载 | 内射极品少妇XXXXXHD | 色翁荡熄又大又硬又粗又视频软件 | 无码精品人妻一区二区三A片 | 欧洲午夜福利视频在线观看 | 免费观看中文字幕午夜理论 | 日本丰满大乳人妻无码水卜樱 | 国产乱码卡二卡三卡老狼在线观看 | 亚洲色欲色欲在线大片 | 国产福利资源在线 | 国产一级片网址 | 日韩精品第1页 | 亚洲中字慕日产2024 | 欧美亚洲天堂网 | wwwjizz日本| 99热久久这里只精品国产WWW | 天天干天天操天天插 | 国语普通话对白CHINESE | 天天干天天摸天天操 | 亚洲国产精品综合久久久 | 高清一区二区亚洲欧美日韩 | 午夜无码伦费影视在线观看果冻 | 欧美综合色婷婷欧美综合五月 | 最近免费中文字幕大全高清大全 | 国产色妞妞在线观看 | 亚洲欧美精品一中文字幕 | 影音先锋av色咪影院 | 国产精品国产三级国产AV麻豆 | 国产精品一区二区三区高清在线 | 久久不卡免费视频 | 男人j进女人j的图片 | 久久久久久a亚洲欧洲aⅴ | 国产精品一区二区AV白丝在线 | 好涨太粗进去用力快好深 | 欧洲成人免费高清视频 | 性色香蕉AV久久久天天网 | 夜夜国产亚洲视频香蕉 | 久久精品国产99国产 | 成年在线观看免费高清完整版视频 | 久久人妻国产高清 | 免费无码无遮挡永久色情聊天 | 国产精品毛片 | 欧美伦理片 | 少妇邻居内射在线 | 天天黄色 | 欧美精品久久久久久无码人妻 | caoporn 超频在线视频 | 国产乱码精品一区二区三区香蕉 | 伊人亚洲影院 | 一区二区免费播放 | 午夜副利电影手机高清在线直播app下载 | 免费久久久久 | 亚洲国产精品v在线播放 | 免费国产a国产片高清下载app | 熟女乱p网 | 国产浓毛大泬熟妇视频 | 日本湿妺影院免费观看 | 国产做A爰片久久毛片A片软件 | 天堂资源在线www中文 | 日本韩国台湾香港三级 | 久久97精品久久久久久久不卡 | 久久免费资源 | 欧美播播 | 女人与牛交ZOZO | 福利姬视频在线观看 | 亚洲自拍电影 | 久久国内免费视频 | 中文无字幕一本码专区 | 美女扒开尿口让男生添 | 欧美成人国产一区二区 | 蜜桃网怎么打不开了 | 韩国伦理片网站 | 亚洲国产精品综合久久久 | 无套内谢少妇毛片AAAA片免费 | 91桃色污无限免费看 | 国产人在线成免费视频 | 国语对白一区二区三区 | 欧美视频在线观看视频 | 品色堂永久网址 | 欧美日韩亚洲国产欧美电影 | 亚洲午夜精品久久久久久抢 | 在线播放免费看高清大片 | 波多野结衣黑人40分钟 | 国产精品第1页在线观看 | 日本边添边摸边做边爱60分钟 | 贵州美女一级纯黄大片 | 久青草影院在线观看国产 | 少妇人妻邻居做爰无码 | 91情侣在线视频 | 五月天婷婷网站 | 蜜桃传媒一区二区亚洲AV | 99爱在线精品视频网站 | 最近高清中文在线字幕观看 | 免费一区二区三区无码A片 免费又粗又硬进去好爽A片视频 | 免费看饥渴难耐的少妇软件 | 欧美综合色婷婷欧美综合五月 | 国产综合成人久久大片91 | 一级一级一级一级毛片 | 国产男人的天堂在线视频 | 日本调教网站 | 欧美性生交BBBXXXXX无码 | 兽交XXXXBBBB视频.专区 | 日本免费观看日本高清视频 | 久久6热 | 理论片在线观看片免费 | 国产成人一级 | 国产又色又爽又黄刺激在线视频 | 欧美一级特黄aaaaaa在线看首页 | 一起看电影网 | 国产女人毛多水多A片视频 国产欧美精品一区二区三区-老狼 | 出差被公舔到高潮 | 欧美激情视频一区二区免费 | 黄页网站免费在线观看 | 久久久这里只有精品免费 | 欧美日本亚洲国产一区二区 | 成人国内精品久久久久影院 | 国产精品久久人妻无码网站一区无 | 日本免费色视频 | 奇米777影视成人四色 | 国产免费观看大片黄 | 第章丰腴美妇岳服侍巨龙 | 九九久久亚洲综合久久久 | 手机看片日韩日韩国产在线看 | 国产成人禁片免费观看视频 | 亚洲精品久久久久久动漫 | 女人张开腿让男人桶免费网站 | 提枪进洞风云涌玉门迎 | 午夜影片 | 亚洲 日韩 中文字幕区 | 好大好硬好爽18禁视频免费 | 国产精品久久久久久日本一道 | 午夜寂寞影| 国产成人综合久久精品红 | 丁香六月综合网 | 免费韩国伦理2017最新 | 中文字幕在线视频不卡 | 西西人体做爰大胆图片 | 久久AV无码乱码A片无码蜜桃 | 中文字幕无码人妻AAA片 | 毛茸茸xxxx免费视频hd | 灌满抽搐合不拢男男H | 欧美日韩中文国产一区发布 | 四虎影午夜成年免费精品 | 99在线视频免费观看视频 | 国产精品麻豆久久久 | 美国成人毛片 | 青青草国产免费国产是公开 | 免费成人电影在线 | 亚洲精品久久久久一区二区三区 | 人人人免费人人专区人人 | 男人一边吃奶一边做爰免费视频 | 国内精品久久国产大陆 | 无码观看AAAAAAAA片 | 97视频在线观看播放 | 精品久久久无码人妻中文字幕边打电话 | 丁香视频在线 | 美妇岳妇的肉泬目录 | 亚洲产国偷V产偷V自拍色情 | 国产精品免费大片一区二区 | 黑人巨茎大战白人女40CM | 禁止的爱善良的小峓子3线国字 | 成人AV无码一二二区视频免费看 | 亚洲国产成人A片乱码 | 在线免费观看精品 | 丁香花chengren| 国产成人无码视频一区二区三区 | 亚洲精品久久久久久无码AV | 亚洲欧美日韩另类精品一区二区三区 | 成人特级毛片 | 国产人妻精品久久久久久 | 久久精品不卡 | 中文字幕精品久久 | 国产一级一片免费播放视频 | 亚洲AV综合AV国产AV百度云 | 下身被黑人猛然进入 | 日本三级电影在线观看 | 人妻免费久久久久久久了 | 亚洲2023无矿砖码砖区 | 动漫精品视频一区二区三区 | 国产成人AV| 欧美精品亚洲精品 | 交换邻居波多野结衣中文字幕 | 丝袜偷窥亚洲综合 | 久久一本色道综合 | 国师受被肉到失禁各种PLAY | 国产精品久久久久久久免费 | 最近中文字幕免费大全8一 最近中文字幕免费国语6 | 亚洲第一成网站 | 欧洲成人免费高清视频 | 影音先锋 av撸色 | 91免费看视频| 波多野结衣下载 | 国产无套内射又大又猛又粗又爽 | 四虎福利 | 亚洲影视自拍揄拍愉拍 | 2022最新国产在线不卡a | 最近更新中文字幕免费版 | 成人精品视频 | 色妞色视频一区二区三区四区 | 欧美91av| 色伦专区97中文字幕 | 三级毛片黄色 | 国产亚洲日韩精品激情 | www.亚洲天堂 | 日韩大片在线永久免费观看网站 | 国产成人精品无缓存在线播放 | 久久久免费看少妇高潮A片特黄 | 成人免费播放视频777777 | 成年网站免费 | 国产午夜男女爽爽爽爽爽 | 国产高清视频免费最新在线 | 亚洲精品一区二区三区四区久久 | 久操这里只有精品 | 青草热久精品视频在线观看 | 亚洲综合激情六月婷婷在线观看 | 色多多深夜福利免费观看 | 亚洲黄色片一级 | 日本韩国的免费观看视频 | 国产又粗又猛又爽又黄A片 国产又粗又猛又爽又黄A片漫 | 狠狠狠狠狠狠狠 | 人妻妺妺窝人体色WWW聚色窝 | 小蝌蚪APP丝瓜无限看下载 | 国产精品久久精品 | 苍井空免费线在线观看无需下载 | 国产麻豆精品久久一二三 | A片扒开双腿进入做视频 | 国产免费av片在线观看 | 久久免费影院 | 综合网伊人 | 可乐视频国产区 | 日韩精品无码一区AAA片 | 你好湿呀!小妖精快叫 | 公粗挺进了我的密道在线播放贝壳 | 久久久久久久国产 | 亚洲视频无码高清在线 | 水密桃网站 | 久热这里只有精品6 | 成人无码WWW在线看免费 | 老司国产高清免费视频 | 国产一级做a爱片久久毛片a | 在线亚洲欧美 | 激情文学综合网 | 2019色 亚洲 日韩 国产 在线 | 国产内射大片99 | 欧美日韩永久久一区二区三区 | 花房姑娘免费观看8集电视剧高清 | 最近最新中文字幕2018中文字幕mv | 伊人网国产| 九一果冻传媒 | 欧日韩一区二区三区 | 日本一道本 | 久久久久久99 | 高考陪读妇乱子伦小说长篇 | 中文字幕亚洲激情 | 色综合精品无码一区二区三区 | 国产女人第一次做爰视频 | 国产成人精品午夜福利在线播放 | 国内精品偷拍在线观看 | 扒开女人下面使劲桶动态图 | 日本一本二本免费视频在线观看 | 无码中文资源在线播放 | 中文字幕在线播 | 日本12一14eenxxxxtv | 舌头添高潮A级毛片 | 日韩欧美一区二区三区四区 | 色毛| 午夜日韩精品 | 欲盖弄潮快播 | 国产又黄又猛又粗又爽的A片动漫 | 日韩在线小视频 | 狠狠色噜噜狠狠狠狠91 | 日本高清一区二区三区无码 | 日韩一级视频 | 国产农村妇女成人精品 | 四虎影视在线影院在线观看 | 国产资源视频在线观看 | 成品人和精品人的在线观看 | 疯狂撞击美妇雪白的大肉臀 | 国产精品视频自拍 | 花唇扒开(H)双性 | 男女阳茎牲交32动态图片免费 | 日韩精品一区二区三区色欲AV | 国产高清免费观看 | 欧美一区二区三区视频在线观看 | 久激情内射婷内射蜜桃人妖 | 国产 ts 人妖 在线 | 国产成人久久AV免费高潮 | 婷婷精品国产亚洲AV在线观看 | 99国产亚洲精品无码成人 | 亚洲人大战欧洲人A片 | 97伊人网 | 亚洲视频一区二区在线观看 | 国产精品久久福利网站app | 在线黄色小视频 | 中冶葫芦岛有色金属集团有限公司 | 夜精品A片观看无码一区二区 | 99久久精品国产一区二区三区 | 成免费播放观看在线视频 | 苍井空无高清码在线观看 | 日本一卡二卡三卡四卡无卡免 | 国产精品99| 久久就是精品 | 国产高潮呻吟无码精品AV | 国产成人精品福利网站在线观看 | 国产精品一区二区资源 | 国产视频99 | 91制片厂制作果冻传媒所有 | 国产精自产拍久久久久久蜜 | 亚洲精品久久无码一区二区大长腿 | 色视频网站色视频播放 | 大地影院_日本骚妇 | 宅男在线永久免费观看 | 亚洲牝户毛茸茸 | 午夜家庭影院 | 国产99精品在线观看 | 免费爱爱网址 | 久久人人做人人妻人人玩精品AV | 乱人伦小说500篇目录 | 亚洲精品无码高潮喷水A片软 | 18禁欧美猛交XXXXX无码 | 乱码一二三乱码又大又粗 | 国产人妖ts | 久久视频精品38线视频在线观看 | 成人在线免费看 | 美国a级毛片 | 亚洲精品美女偷拍一区二 | 一级全黄毛片 | 亚洲成人mv| 狠狠综合欧美综合欧美色 | 激情六月 | 成人无码A片一区二区三区免 | 狠狠狠色| 人妻精品国产一区二区 | 免费中文字幕日产乱码 | 免费国产成人高清在线观看网站 | 国产精品99久久久久久人 | 又大又爽又黄无码A片在线观看 | 午夜高清视频 | 无码人妻精品一区二区三区蜜臀 | 在线 亚洲 欧美 | 麻豆文化传媒网站入口 | 日本欧美国产精品第一页久久 | 熟女少妇人妻中文字幕 | 91情侣视频| 日本高清一卡二卡三卡四卡免费 | 免费无码一区二区三区A片百度 | 国产-第1页-草草影院 | 久久久99品牌的特色产品 | 扶着岳从后面挺进 | 久久草资源费视频在线观看 | 古风一女N男到处做高H | 插老师进去了好大好舒服小说 | 中文字幕亚洲乱码熟女在线萌芽 | 成年人网站免费看 | 校花被扒衣吸乳羞羞漫画 | 免费观看全黄做爰 | 免费护士一级毛片 | 色www视频永久免费软件 | 色琪琪av男人的天堂 | 福利视频导航大全 | 日韩不卡在线观看视频不卡 | 成人v片| 最新中文字幕日本 | 久草免费新视频14 | 星野亚希 护士 | 俺去也影音先锋播放 | 伊人久久综在合线亚洲91 | 四虎影视最新2024在线观看 | 久久精品国产99国产精品 | 亚洲 欧美 卡通 图区 | 亚欧洲精品在线视频免费观看 | 老师洗澡让我吃她胸视频 | 你好湿呀!小妖精快叫 | 亚洲精品一区二区三区早餐 | 欧美在线一区二区 | 久久视频在线直播 | 神兵小将第一季免费观看 | 国产精品自在在线午夜蜜芽tv在线 | 2019精品国产品对白在线18年 | 色妞www精品视频 | 尤物一区| 玖玖国产精品视频 | 国产高中生三级视频 | 牛和人交videos欧美冫3d | 果冻制作传媒免费版 | 日韩经典中文字幕 | 成年午夜免费影院 | jvid精品视频极品美女 | 国产免费A片好硬好爽好深漫画 | 人人干夜夜操 | 欧美精品久久99人妻无码 | 狠狠色丁香婷综合久久 | 在线视频日本 | 日韩精品视频免费在线观看 | 国产精品67人妻无码久久 | 婷婷综合久久狠狠色成人网 | 久久久综合久久 | 嗷嗷好影院 | 天天鲁一区摸一摸爽一爽 | 小荡货好紧好爽奶头好大视频网站 | 精品videosex性欧美 | 自拍三区播 | 涩涩网站在线观看 | 2020最新无码国产在线视频 | 粗大挺进朋友人妻身体里电影 | 丰满少妇夜夜爽爽高潮水 | 人人澡人人透人人爽 | 国产精品高潮呻吟AV久久床戏 | 一级大片网站 | 国产手机免费视频 | 久久只有这精品99 | 久碰久| 狠狠干美女 | 欧美乱大交xxxxx在线观看 | 一本到亚洲网 | 撸撸看电影 | 午夜播放器在线观看 | 污网站观看| 激情综合五月天丁香婷婷 | 日韩不卡在线播放 | 国产欧美日韩网站 | 国产成人mv 在线播放 | 色欲AV亚洲一区无码少妇 | 2020年国产精品 | www.蜜臀 | 玩弄丰满少妇XXXXX性多毛 | 性一交一乱一欲A片 | 麻豆文化传媒一区二区 | 被黑人做的白浆直流 | 久久免费看少妇高潮A片JA小说 | 亚洲国产中文视频二区 | 国产凸凹视频熟女A片 | 色婷综合| 国内精品七七久久影院 | 精品AV国产一区二区久久小说 | 苍井空三点快播 | 亚洲AV怡红院影院怡春院 | 一区二区免费播放 | 亚洲小格式 | 国产精品视频自拍 | 日韩在线视频在线 | 欧美囗交xx×bbb视频 | 久久综合九色综合97免费下载 | 国产性做久久久久久 | 久久这里只有精品66re99 | 国产免费看片 | 成人网18免费视频 | 国产精品毛片AV在线看 | 波多野结衣一区二区三区 | 久久99九九国产免费看小说 | 国模嘉妮极品美胞 | 妺妺窝人体色WWW网站 | 亚洲综合网国产福利精品一区 | 欧美午夜精品久久久久久浪潮 | 国产精品国产三级国产无毒 | 免费看黄页| AV色欲无码人妻中文字幕 | 亚洲 欧美 校园 春色 小说 | 成人亚洲欧美日韩在线观看 | 又大又爽又黄无码A片在线观看 | 簧片在线免费观看 | 视频一区 中文字幕 | 国产一二三区有声小说 | 在线v片免费观看视频 | 国产xxxx做受性欧美88 | 我和两个女领导玩双飞 | 丁香婷婷在线视频 | 大学生一级一片第一次免费 | 秋霞成人午夜鲁丝一区二区三区 | 九九九国产 | 毛茸茸xxx娇小 | 日本香港三级和澳门三级 | 国产无遮挡又黄又大又爽在线观看 | 欧美日韩亚洲综合2019 | 长篇肉戏香艳完本小说排行榜 | 中出片| 免费国产小视频 | 新版天堂中文资源8在线 | 1024毛片| 亚洲国产精品嫩草影院永久 | 好硬啊进得太深了A片无码公司 | 久久久国产一区二区三区四区小说 | 精品乱码久久久久久中文字幕 | 欧美xxxx色视频在线观看 | 蜜臀AV色欲无码A片一区 | 麻豆亚洲精品中文字幕一麻豆 | 国产成人免费不卡在线观看 | 男子扒开美女尿口做羞羞的事 | 中文字幕一区二区三区精华液 | 色翁荡息肉欲系列小说 | 青青草成人色情视频网 | 亚洲精品高潮久久久久久日本 | 日产精品卡二卡三卡四卡乱码视频 | 韩国和日本免费不卡在线V 韩国精品AV一区二区三区 | 最近完整中文字幕1 | 中文字幕久久熟女蜜桃 | 日本在线不卡免费 | 午夜精品久久久久久久爽牛战 | 婷婷开心中文字幕 | 一级毛片视频在线 | 国产一区二区三区不卡在线观看 | 亚洲 欧美 制服 中文字幕 | 日本熟妇人妻另类无码 | 午夜理论电影在线观看亚洲 | 真实国产乱子伦高清 | 精品国产成人国产在线观看 | 国产做A爰片久久毛片A片软件 | 日本不卡在线视频高清免费 | 秋霞伊人 | 艳美动漫在线观看 | 老牛无码人妻精品1国产 | 国自产拍偷拍精品啪啪色 | 99精品丰满人妻无码A片 | 久久精品一本到99热免费 | 色影| 影音男人新资源网 | 久久精品国产欧美日韩99热 | 91av在线免费观看 | 欧美一级精品高清在线观看 | 王梅乱LUN第5部分 | 国产人妻出轨15P | 日韩免费高清一级毛片久久 | 一区二区三区四区在线免费观看 | 在线成本人动漫视频网站 | 国产精品扒开腿做爽爽爽A片软件 | 午夜视频在线观看免费观看在线观看 | 亚洲a区视频 | 乱码中字在线观看一二区 | 涩涩看片| 黄色视屏在线免费观看 | 国产人在线成免费视频 | 欧美一区精品 | 中文字幕日本一区 | 男人一边吃奶一边做爰免费视频 | 四虎永久免费地址入口 | 国产三级一区二区三区 | 最好看的最新的中文字幕3 最近2019中文字幕免费 | 国产 高速 亚洲 欧美 在线 | yellow字幕网 中文字幕 | 国产高清在线露脸一区 | 久久国产精品久久久久久 | 亚洲精品久久久久中文第一幕 | 一女被两男吃奶添下A片免费网站 | 丁香午夜婷婷 | 一起看影院 | 国产一卡2卡3卡4卡国色 | 亚洲永久在线观看 | 漂亮的保姆7日本在线播放 漂亮人妻被公日日躁国产 漂亮人妻洗澡被公强欧美精品无码 | 美国全免费特一级毛片 | 国产人人看 | 亚洲婷婷国产精品电影人久久 | 在线成人福利 | 东京干男人 | 久热九九 | 中文无码乱人伦中文视频播放 | 久久99中文字幕伊人 | www.毛片com| 亚洲国产日韩制服在线观看 | 快播黄网址 | 大片免免费观看视频播放器在线观看 | 欧美成人久久一二三区A片 欧美成人无码A区在线观看免费 | 杨紫好深啊再用力一点 | 午夜精品久久久久久久 | 日韩少妇内射免费播放 | 三级网络免费地址在线观看 | 天天干天天舔天天操 | 久久精品人妻无码一区二区三区网 | 久久久久久久97 | 在线不卡日本v二区 | 成版抖音富二代 | 蜜臀91精品国产高清在线观看 | 亚洲精品成A人在线观看 | 国产少妇人妻 在线播放 | 欧美播播 | 伊人久在线观看视频 | 精品国产人妻一区二区三区免费 | 国产午夜精品久久理论片小说 | 男子扒开美女尿口做羞羞的事 | 天天操天天干天天舔 | 欧美亚洲国产日韩一区二区三区 | 日韩精品中文字幕久久 | 黄色网址 在线播放 | 亚洲人大战欧洲人A片 | 免费国产黄色片 | 牛牛社区 | 手机在线精品视频 | 国产福利在线视频尤物tv | 国产在线免 | 伦理聚合在线观看 | 97蜜桃网| 狠狠i撸| 久草在线视频免费老司机 | 国产精品久久久久久麻豆一区 | 97青草最新免费精品视频 | 高清有码国产一区二区 | 亚洲欧美日韩中字视频三区 | 少妇老师寂寞高潮免费A片 少妇仑乱A毛片 | 亚洲精品无码A片一区二区三区 | 亚洲丰满熟女一区二区蜜桃 | 秋霞电院影伦理 | 亚洲国产系列一区二区三区 | 久久久这里只有免费精品2024 | 清扫魔| 亚洲国产欧洲精品路线久久 | 午夜视频网 | se成人国产精品 | 精品一区二区三区免费毛片爱 | 国产日韩精品一区二区三区在线 | 四虎影视在线看 | 久久久久久综合 | 精品在线观看一区 | 波多野结衣dvd在线播放 | 丰满少妇被猛烈高清播放 | 风流少妇A片一区二区蜜桃 风流少妇与黑人做爰 | 免费黄网站在线观看 | 无码日本精品一区二区片 | 日韩视频高清免费看 | 小视频免费观看在线 | 日韩精品一区在线观看 | 亚洲无人区电影国产 | 波多野吉衣一区二区三区四区 | 日韩精品一区二区三区中文 |