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

entretenimento

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

hlssm

12 Oct 2025(atualizado 12/10/2025 às 01h37)

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

Temas

Compartilhe

The_walking_statues_of_Easter_Island.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 tipos de premios mega senaits 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

105_million_a_year_loss_of_ecosystem_services_from_90_loss_of_Mediterranean_seagrass_bed.txt

Tilgul_A_Indian_sweet_that_encourages_kind_words.txt ponto quente e os lazer conhecimento.

GRáFICOS

nos eixos

Zarb_The_Bedouin_answer_to_barbecue.txt

Thrilling debuts to big-name authors 40 of the most exciting books to read in 2025.txt lazer e os abrangente lazer.

Navegue por temas

The_unfolding_of_a_horrifying_Aztec_prophecy.txt TotalEnergies diz que gás argentino deve chegar ao Brasil a menos de US$10 por milh?o de BTU.txt Tom Phillips How four-year hunt for New Zealand dad unfolded.txt Thomas_Tuchel_England_win_over_Serbia_was_teamwork_in_its_purest_form_-_BBC_Sport.txt Trancistas agora s?o profissionais reconhecidas por lei — e isso muda tudo.txt Transamaz?nica continua polêmica Amaz?nia Valor Econ?mico.txt Trecho onde cratera de quatro metros no Setor Policial abriu é interditado.txt Torcida do Corinthians provoca Carlos Miguel em reencontro e canta: 'Hugo Souza é sele??o'.txt The_truth_behind_the_walking_statues_of_Easter_Island.txt Tilgul_A_Indian_sweet_that_encourages_kind_words.txt
午夜男人网 | 96国产下药迷倒白嫩美女 | 美女扒开腿让男生桶爽免费APP | 狠狠的日| 漫画老师全彩超级巨大乳 | 日本最色网站 | 国产美女流白浆的免费视 | 巨人精品福利官方导航 | 91孕妇精品一区二区三区 | 综合久久久久综合97色 | 亚洲精品久久无码AV片2022 | 亚洲国产精品无码成人A片小说 | 免费看国产成人无码A片 | 手机在线看片国产 | 亚洲高清无码加勒比 | 又爽又色禁片1000视频免费看 | 国产91成人 | 一级毛片美国aaj毛片 | 久久国产免费观看精品1 | 色中色最新网站 | 精品免费国产一区二区三区四区五 | 欧美一级免费看 | 日韩欧美精品 | 久久精品国产99国产精品澳门 | 日本一区二区视频 | 色婷婷综合欧美成人 | 性欧美videos高清喷水 | 网站黄色在线观看 | 女人潮抽搐动态图gif后 | 在线播放免费看高清大片 | 午夜亚洲WWW湿好爽 想见你电影版免费观看 | 丁香婷婷综合激情五月色 | 日本国产一卡二卡三新区 | 亚洲免费影院 | 美国伊人网| 天天操穴 | 亚洲国产女人aaa毛片在线 | 亚洲卡一卡二卡三乱码公司 | A片扒开双腿猛进入免费观看 | 最新亚洲一区二区三区四区 | 欧美午夜视频在线观看 | 流氓软件app免费下载大全下载 | 好骚综合在线 | 日韩美女在线视频 | 中文字幕5566看片资源 | 亚洲精品一区国产欧美 | 国产亚洲精品久久久久久一区二区 | 第四色播色中色 | 久草在线草a免费线看 | 九一国产精品 | 97国产揄拍国产精品人妻 | 色狐网| 美女视频大全视频a免费九 美女三级毛片 | 日韩精品亚洲专区在线影院 | 亚洲精品入口一区二区乱麻豆精品 | 窝窝午夜影院 | 欧美日本韩国亚洲 | 日韩卡二卡三卡四卡永久入口 | A片好大好紧好爽视频 | 最近韩国日本免费高清观看 | 久久亚洲精品AV成人无码 | 伊人亚洲综合网色 | 精品一卡2卡三卡4卡乱码免费 | 九九九久久久 | 护士毛茸茸 | 花唇扒开(H)双性 | 九一国产在线观看 | 亚洲自偷自拍另类图区 | 欧美 日韩 国产 另类 图片区 | 女人被添全过程A片免费视频 | 99久久做夜夜爱天天做精品 | 欧美伦理片美亚电影网 | 小视频免费观看在线 | 男人使劲躁女人过程A片 | 老湿机费x一分钟影院体验区 | 国自产拍偷拍精品啪啪一区二区 | 黄色一级视频网 | 中文字幕巨大的乳专区 | 亚洲精品123区在线观看 | 国产高清精品软件丝瓜软件 | 美女精品久久久久久国产潘金莲 | 欧美做爰免费大片视频 | 全黄a免费一级毛片人人爱 全古装一级毛片大全 | 中文字幕一区在线观看视频 | 老王轻一点儿好爽在深一点 | 一本大道道香蕉a | 丁香综合缴情六月婷婷 | 日本免费一区二区在线观看 | 国产成人精品无缓存在线播放 | 亚洲自偷自拍另类图片 | 久久99久久精品国产99热 | 国精品无码一区二区三区在线A片 | 狠狠操狠狠操狠狠操 | 久久午夜精品 | 久久精品人妻无码一区二区三区盗 | 国产寡妇性视频 | 精品免费tv久久久久久久 | 亚洲欧美日韩在线不卡中文 | 综合无码色情一区二区 | 波多野结衣办公室jian 情 | 国产又黄又爽又猛免费app | lulushe百度影音| 在线播放69热精品视频 | 天天草综合网 | 色哟哟视频在线观看免费播放 | 中国老少配video | 免费看黄色毛片 | 日本视频在线免费看 | 国产人妻无码区免费九色 | 91精品久久久久久久久中文字幕 | 快播酒色网 | 亚洲成AV人片一区二区三区 | 偷偷鲁在线影院 | 91制片厂果冻传媒2022 | 婷婷国产 | 最好看的2018中文在线观看 | 在线永久看片免费的视频 | 国产精品人妻一码二码尿失禁 | 国产午夜福利视频第三区 | 国产美女一级视频 | 欧美天堂久久 | 男人天堂网2022 | 一个人看的片在线WWW免费中文 | 日本免费一区二区在线观看 | 久久狠狠丁香婷婷综合 | 日本高清WWW色视频网站 | 欧美日韩一区二区三区免费不卡 | 国产乱妇乱子在线播视频播放网站 | 影音先锋中文字幕无码资源站 | 亚洲国产欧美中文手机在线 | 中文字幕视频在线 | 国产精品综合网 | 软玉娇香多肉1V3 | 乱肉杂交怀孕系列小说BL | 欧美性videos高清精品 | 黄毛片网站 | 亚洲 欧美 中文 在线 视频 | 亚洲一区不卡视频 | 啊灬啊别停灬用力啊免费看 | 亚洲成综合人影院在院播放 | 永久免费看MV网站入口亚洲 | 国产视频99 | 中文字幕无线观看在 | 亚洲一区二区三区四区五区六区 | 亚在线观看免费视频入口 | 色成人在线 | 久久国产成人亚洲精品影院老金 | 亚洲免费天堂 | 97在线线免费观看视频在线观看 | 国产丝袜啪啪 | 超级狂色而且免费又超好看 | 日本肉肉口番工全彩动漫 | 精品中文字幕在线 | 久久精品亚洲日本波多野结衣 | 色噜噜噜亚洲男人的天堂 | 中文字幕区 | 娇妻的闺蜜下面好紧 | 色婷婷五| 婷婷色婷婷 | 亚洲无人区码卡二卡三卡四卡 | 欧美一级久久久久久久久大 | 亚洲精品久久久午夜福利电影网 | 丁香六月深婷婷激情五月 | 午夜爱爱免费视频体验区 | 亚洲一区二区三区国产精华液 | 少妇我被躁爽到高潮A片 | 成电影人免费网站 | 免费观看久久 | 欧美日本韩国一二区视频 | 国产亚洲精品久久久久久白晶晶 | 人妇乱理三级 | 亚洲精品久久久久久久久久无码 | 国产精品久久久久久久人人看 | 亚洲AV无码乱码A片无码蜜桃 | 精品人妻无码一区二区三区手机版 | 亚瑟AV亚洲精品一区二区 | 色欲AV亚洲一区无码少妇 | 亚洲在线中文字幕2 | 亚洲成成品源码中国有限公司 | 最新中文字幕在线视频 | 五男一女NP慎入H小说 | 日韩成人在线网站 | 四虎免费在线观看 | 蜜色欲多人AV久久无码 | 狠狠色噜噜狠狠狠狠2022 | 久久久国产99久久国产首页 | 亚洲高清在线观看视频 | 欧美日韩精品在线 | A片太大太长太深好爽A片视频 | 狠狠躁| 麻豆影片| 成人做爰视频WWW在线观看 | v天堂在线观看 | 国产高清乱码又大又圆 | 狠狠人妻久久久久久综合九色 | 邻居寂寞人妻中文字幕 | 亚洲精品久久7777777 | 97在线线免费观看视频在线观看 | ts人妖在线 | jizz免费看| 亚洲日韩一页精品发布 | 日本 一二三 不卡 免费 | 亚洲 欧洲 小说 自拍 | 涩涩快播 | 国产区1| 国产精品人妻出轨 | 狠狠骚 | 亚洲精品国产v片在线观看 亚洲精品高清国产一线久久97 | 丝瓜视频未满十八严禁 | 无码激情做A爰片毛片A片日本 | 日本无码H纯肉黄动漫A红桃 | 亚洲精品无码一区二区三区仓井松 | 2022国产精品网站在线播放 | 性戏达人| 水蜜桃成视频人在线播放 | 蝌蚪免费视频在线观看 | 高h全肉纯肉 高质量 | 欧美视屏| 国产乱子夫妻XX黑人XYX真爽 | 欧美国产大片 | 国产精品伦理久久久久久 | 国产成人无码免费看视频软件 | 很黄很肉很刺激的小说在线阅读 | 三级视屏| 日本少妇做爰免费视频网站 | 亚洲免费三级 | 欧美va天堂在线电影 | 精品国产乱码久久久久久浪潮小说 | 第章丰腴美妇岳服侍巨龙 | 亚洲色欲色欲WWW在线看小说 | qvod网站 | 婷婷激情六月 | CHINESETUBE国产在线观看 chinese熟女熟妇m1f | 图片亚洲区自拍 | 毛片成人永久免费视频 | 国产精品自产拍在线观看中文 | 大陆老熟女嗷嗷叫AV在线 | 蜜桃TV成人网站免费打开 | 欧美播播| 日本视频中文字幕一区二区 | 浙江乱子伦对白 | 午夜福利合集1000在线 | 日产中文乱码字幕无线观看 | 久久综合九色综合桃花 | 久久精品免费人成人A片 | 国产三级精品三级 | 日日摸夜夜摸狠狠摸97 | 高清在线免费观看完整版电影大全 | 一女多男nP现代高H 一区二区三区好的精华液杨朝越 | 麻豆精品国产精华精华液好用吗 | dvd8090cnm欧美大片 | H高潮嗯啊娇喘抽搐A片男男视频 | 欧美视频一区二区三区在线观看 | 97超视频在线观看 | 国产精品福利短视在线播放频 | 国产精品久久毛片 | 99久久久国产精品免费蜜臀 | 九九九九在线视频播放 | 国产亚洲精品成人AA片小说 | 日韩精品中文字幕高清在线 | 日本大片高清免费视频日本 | 再深点灬舒服灬太大了添A片小说 | 神秘感染1在线观看高清完整免费观看 | 91涩涩视频 | 日本真人做爰高潮全过程 | 国产精品人妻无码77777 | 久久综合桃花网 | 一级做a爱过程免费视频时看 | 男人午夜天堂 | caoporn成人免费视频 | 少妇大荫蒂毛多毛大 | 亚洲欧美日韩_欧洲日韩 | 99精品久久久久久久免费看蜜月 | 古装一级淫片a免费播放口 古装一级无遮当一级毛片 古装一级毛片手机免费看 古装一级毛片免费观看 | 久久合| 国产强伦姧人妻电影 | 色欲影视 网站 | 日本aⅴ在线 | 在线免费国产 | 波多野吉衣一区二区三区四区 | 狠狠综合欧美综合欧美色 | 2024最新四虎免费 | 日本欧美一区 | 欧美日韩高清不卡一区二区三区 | 日韩美女视频在线观看 | 午夜久久久久久 | 在线观看的免费视频网站 | 国产精品久久毛片 | 久久久无码精品亚洲A片猫咪 | 欧美性xxxx极品hd欧美 | 国产V片在线播放免费观看大全 | 国产又爽又大又黄A片软件 国产又爽又大又黄A片图片 | 亚洲国产成人久久99精品 | 不卡免费在线视频 | 忘忧草在线播放WWW芒果 | 久久99精品这里精品动漫6 | 精品人伦一区二区三区潘金莲 | 你懂得视频在线 | 精品夜色国产国偷自产在线 | 她的两片蚌肉张开白浆直流 | 欧美亚洲熟妇一区二区三区 | 国产麻豆精品传媒AV国产在线 | 永久免费av网站 | 天天色综合网站 | 免费日本在线视频 | 国产又爽又黄又爽又刺激 | 国产99久久久国产精品成人 | 国产成人精品一区二区 | 久久久国产精品网站 | 精品日韩在线视频 | 亚洲欧美片 | 日韩三级影院 | 国产精品久久久精品a级小说 | 国产91一区二区在线播放不卡 | 精品一卡2卡三卡4卡乱码理论 | 蜜桃色情在线观看 | 四虎影视在线地址最新 | 欧洲特级做A爰片久久毛片A片 | 狠狠干狠狠操 | 日韩无矿砖一线二线 | 最近完整中文字幕大全高清3 | 欧美日韩中文国产一区发布 | 国产无遮挡又黄又大又爽在线观看 | 四房播播第四色 | 亚洲一区免费观看 | 国产一卡2卡3卡4卡国色 | A片扒开双腿进入做视频 | 日本三级韩国三级在线观看a级 | 亚洲国内精品自在线影院牛牛 | 丁香六月激情 | 国产少妇人妻 在线播放 | 性做爰添lBB视频免费下载 | 午夜亚洲视频 | 国产福利视频在线观看福利 | 91免费永久国产在线观看 | 国产一区二区三区内射高清 | 久99视频| 潮吹美人鱼 | 日韩精品人妻AV一区二区三区 | 污污在线网站 | 国产一区二区三区在线视频 | 久久久久国产精品免费免费 | 黄色网页在线播放 | 亚洲另类激情综合偷自拍图 | 欧美噜噜噜 | jizz免费看| 毛片区| 天天狠狠弄夜夜狠狠躁·太爽了 | 久久国产精品自线拍免费 | 欧美free嫩交hd | 色欲一区二区三区精品A片 色欲综合视频天天天 | 日本高清专区一区二无线 | 久热久色| KUAIMAO CC| 色鬼网站| 国产精品一区二区资源 | 最近最新中文字幕高清免费 | 精品一区二区三区AV天堂 | 西部矿业网 | 亚洲精品国产AV成人毛片 | 在线看动漫| 色婷婷在线视频 | 黄色片毛片 | www.狠狠操| 免费特黄一区二区三区视频一 | 精品久久久无码人妻中文字幕边打电话 | 少妇高潮A片特黄久久精品网 | 免费观看欧美成人1314w色 | 日本视频一区二区免费播放 | 男男开荤粗肉NP快穿 | 青青青国产免费手机频在线观看 | 视频一区中文字幕日韩专区 | 久久精品亚洲欧美日韩久久 | 亚洲日本韩国 | 亚洲AV在线一区二区三区 | 苍井空视频线免费观看 | 国产亚洲精品久久久AI换脸区 | 日本真人啪啪试看30秒 | 久久99精品久久久 | YASEE亚瑟中文网在线 | 四虎影视8848a四虎在线播放 | 欧美色欧美色 | 一级做a爱过程免费视 | 吕知樾张津瑜百度云 | 鸭王精品一区二区 | 偷偷色在线 男人天堂 | 老司机精品视频午夜免费视频 | 三级网址大全 | 四虎在线视频免费观看视频 | 伊人情人网 综合 | 欧美在线精品一区二区在线观看 | 精品一区二区在线观看 | 伦理电影中文手机在线观看 | 啪啪东北老熟女45分钟 | 国产www视频 | 欧美日韩福利视频一区二区三区 | 色综合小说天天综合网 | 91在线天堂 | 宝贝乖女好紧好深好爽老师 | 插我舔内射18免费视频 | 在线观看黄网站 | 亚洲国产欧美在线人成精品一区二区 | 一级黄色免费观看 | 免费毛片试看 | 91情侣视频| 欧美国产三级 | 欧美亚洲熟妇一区二区三区 | 日韩成人 | 夜夜天天| 中文字幕大香视频蕉免费 | 欧美经典人人爽人人爽人人片 | 韩国精品一区二区三区四区五区 | 国产亚洲熟妇在线视频 | 亚州笫一色惰网站 | 亚洲 国产专区 校园 欧美 | 国产免费网站看v片在线 | 这里只有精品视频在线 | 欧美精品狠狠色丁香婷婷 | 亚洲熟少妇在线播放999 | 日本红怡院亚洲红怡院最新 | 色综合五月激情综合色一区 | 国产手机精品一区二区 | 久久国产人妻一区二区免费 | 国产又爽又黄又爽又刺激 | 国产又黄又大又色爽的A片小说 | 亚洲欧美一区二区三区久久 | 最新四虎影在线在永久观看 | 阿v网站在线观看 | 黄网站色视频免费看无下截 | 任你躁 | 免费观看韩国经典的A片 | 幸福到万家电视剧在线观看 | 精品国产一区二区三区四区勃大卷 | 久久精品九九亚洲精品天堂 | 风流艳帝 | 91免费看片 | 国产99视频在线 | 九色综合伊人久久富二代 | www精品久久| 囯产精品一区二区三区线 | 精尽人亡乱肉合集乱500小说 | 污肉高H校园调教 | 亚洲第一成年人网站 | 黄色爱爱| 国产精品99久久久精品无码 | 色www亚洲免费 | 成人五 | 一个人看的在线免费视频 | 日韩亚洲人成在线 | 五月天天爱 | 受在寝室被多攻高H男男小说 | 亚洲熟女乱色综合亚洲小说 | 狠狠狠狠狠狠狠 | 午夜理论电影在线观看亚洲 | beeg -日本 beeg.黑人 | 国产精品人妻无码久久久2024 | 亚洲自偷自拍另类图片 | 中文一级片 | 黑帮少爷爱上我第一季在线观看 | 精品无人区一区二区三区a 精品无人区乱码一区二区三区手机 | 天天躁日日2018躁狠狠躁 | 无码一区二区三区亚洲人妻 | 囯产愉拍亚洲精品一区 | 在线成人综合色一区 | 激情五月天小说 | 久久精品久久久久 | 香蕉伊人不卡在线看 | 色精品极品国产在线视频 | 国产人妻精品一区二区三区不卡 | 老司机精品视频一区二区 | jizz日本老师jizz在线播放 | 丰满五十老女人性视频 | 海角国精产品一区一区三区糖心 | 免费观看网站 | 色综合色综合色综合色综合网 | 在线看的免费网站黄2018 | 激情文学另类小说亚洲图片 | 欧美性爽交A片大全 | 国产裸舞福利在线视频合集 | 欧美一线高本道高清免费 | 久久国产亚洲精品麻豆 | 把腿张开老子臊烂你小说描写 | 欧美性爽交A片大全 | 日韩AV无码一区二区三区不卡毛片 | 国产亚洲综合成人91精品 | av电影下 | 97色伦 | 99国产亚洲精品久久久久久 | 青草青青在线 | 进去粗粗硬硬紧紧的好爽免费视频 | 欧美a级v片在线观看一区 | 亚洲精品麻豆 | 亚洲欧美中文日韩综合图区 | 六十路の高齢熟女が中文在线播放 | 久久久久久国产视频 | v欧美精品v日本精品 | 欧美性生交BBBXXXXX无码 | 成人午夜视频在线观看 | 丁香五月久久婷婷久久 | 三级毛片免费看 | 麻豆免费高清完整版 | WWW亚洲精品久久久无码 | 亚洲欧美偷拍视频一区 | 久久九九有精品国产56 | 亚洲 无码 在线 专区 | 国产精品_国产精品_国产精品 | 手机黄色| 秋霞影院午夜伦A片欧美 | 大尺度做爰视频吃奶WWW | 深爱激情五月婷婷 | 91福利视频合集 | 日韩高清一区二区三区不卡 | 亚洲欧美人成无码苍井空 | 成年网站免费 | 国产午夜亚洲精品区 | 日韩精品视频美在线精品视频 | 亚洲成aⅴ人片在线观 | 美女黄网站永久免费观看网站 | 中国一级毛片视频免费看 | 香蕉伊人影院在线观看 | 出轨的女人国语 | 日干夜操| 免费国产凹凸在线视频 | 国内揄拍国产精品人妻门事件 | 亚洲第六页| 亚洲高清最新av网站 | 最近更新中文字幕 | 国产成人精品无码久久A片小说 | 师生H湿 1V1| 亚洲精品高潮久久久久久日本 | 亚洲va久久久噜噜噜久久天堂 | 蜜臀AV色欲无码A片一区 | 最大的高清色情在线网 | 丰满岳乱妇一区二区三区 | 玫瑰之战免费观看全集在线 | 午夜网站在线观看免费网址免费 | 一区二区三区精密机械 | 色频| 亚洲AV色香蕉一区二区三区 | 91精品国产色综合久久不 | 午夜精品区 | 99奇米a影色777四色在线观看 | 久久精品国产自在一线 | 手机上免费看twitch的加速器 | 欧美成人黄色网 | 婷婷 综合网站 | 亚洲激情视频 | 色播视频在线播放 | 深爱五月激情五月 | 国产精品大全国产精品 | 95国产精品人妻无码久 | 一级视频在线观看完整版 | 九九久久国产精品大片 | WWW国产亚洲精品 | 少妇高清性色生活片成人A片 | 国产精品对白刺激久久久 | 亚洲精品中文字幕无码A片老网站 | 在线观看视频一区 | 韩国视频在线观看高h | 色秀影院 | 亚洲清纯自偷自拍另类专区 | 亚洲熟妇毛茸茸 | 亚洲精品久久久久久成人 | 精品成人 | 亚洲国产精品嫩草影院永久 | 国产又黄又爽又刺激的免费网址 | 色欲天天天综合网 | 终结的炽天使动漫免费观看第一季 | 把腿张开老子臊烂你多P视频软件 | 波多野结衣伦理在线观看 | 免费A级毛片黄A片高清在线播放 | 粗大挺进尤物人妻中文字幕 | 中国疯狂做爰XXXX高潮 | 欧美最新的精品videoss | 青草碰人人澡人人澡 | 2014天堂网 | 最近中文字幕免费完整 | 91亚洲影院 | 69精品人人人人 | 精品国产乱码久久久久久夜深人妻 | 在线看片v免费观看视频777 | 亚洲精品免费视频 | 久久奇米 | 国产午夜亚洲精品一区 | wwwyoujizz日本| 国内精品乱码卡一卡2卡三卡新区 | 性一交一乱一美A片裸体 | 亚洲怡红院频在线视频 | 国产一区欧美二区 | 久操线在视频在线观看 | 爱豆传媒在线观看视频 | 国产在线视频在线 | 人人爽人妻精品A片二区 | 韩国伦理片国语伦理片 | 黄色污网站| 色图色小说 | 日本a√在线 | 黄色一级视频免费观看 | 99精彩视频在线观看 | 免费看黄色一级片 | 国产AV一区二区三区日韩 | 永久免费看MV网站入口亚洲 | 成人国产免费 | 日日av | 波多野吉衣一区二区三区四区 | 日韩欧美视频一区二区三区 | 东北老女人大叫爽死啦 | 一区二区不卡视频 | 亚洲免费网址 | 欧美在线观看一区二区三 | 久久久午夜 | 日韩VS欧美VS亚洲VS无码 | 日本黄A级A片国产免费 | 国产精品毛片一区 | 日韩黄色一级视频 | 大陆毛片 | 亚洲欧美制服丝袜一区二区三区 | 91免费国产精品 | 搞逼综合网 | 97无码人妻精品1国产精东影业 | 国产99久久久国产精品免费看 | 人人免费人人看 | 国外人成人色视频在线 | 欧美激情一区二区三区在线 | 久久精品久久精品国产大片 | 国产一区二区三不卡高清 | JIZJIZJIZ 日本老师水多 | 亚洲精品久久久久69影院 | 天天操狠狠干 | 99国产亚洲精品久久久久久 | 欧美日韩加勒比一区二区三区 | 天天躁日日躁狠狠很躁 | 国产亚洲AV片在线观看16女人 | 国产欧美一区二区三区久久 | 日本无码人妻一区二区免费不卡 | 亚洲精品久久精品一区二区 | 最近中文字幕完整版视频1 最近中文字幕完整版视频 最近中文字幕视频国语中文字幕 | 亚洲AV无码影院在线播放 | 91网站视频在线观看 | 黑人狂躁日本妞无码视WWW | 五月婷婷六月爱 | 国产丰满老熟妇乱XXX | 成全在线观看免费观看大全 | 国产手机在线视频 | 99在线视频免费 | 欧美人妇无码精品久久 | 国产激情黄A片无遮挡 | 另类色视频| 亚洲最大的熟女水蜜桃AV网站 | 欧美午夜在线视频 | 国产精品青青在线麻豆 | 毛茸茸的逼 | 灌饱娇嫩H将军公主最新章节 | 久久经典免费视频 | 国产一级一片免费播放刺激 | 色情无码WWW视频无码小说 | 亚洲一区日韩二区欧美三区 | 麻豆国产成人AV在线 | 日本在线国产 | 日本搞逼 | 中国少妇内射XXXX狠干 | 久久93精品国产91久久综合 | 国产精品免费大片一区二区 | 欧美一道本一区二区三区 | 2017秋霞理伦手机在线 | 大陆毛片 | 亚洲热影院 | 久见久热 这里只有精品 | 免费 高清 日本社区 | 久久国产精品久久久久久 | 日日摸人人看97人人澡 | JIZZJIZZ日本护士水多多小说 | 波多野一区 | 国产成人亚洲精品91专区手机 | 国产精品艺校美女校花在线 | 看黄色免费网站 | 亚洲精品久久久久中文字幕二区 | 亚洲免费区| 91影院在线播放 | 一级美国乱色毛片 | 影视先锋av资源站男人 | 国产亚洲国产bv网站在线 | 国产亚洲tv在线观看 | 欧美成人天天综合在线视色 | 精品人妻无码一区二区三区绿 | 国产精品AV无码免费播放 | 哪里看毛片 | 97视频久久久 | 国产精品V无码A片在线看小说 | 中文字幕精品久久久久人妻红杏1 | 亚洲熟伦熟女新五十路熟妇 | 在线片视频网站 | 免费高清资源黄网站在线观看 | 六月丁香综合网 | 免费一级特黄特色大片在线观看 | 免费播放一区二区三区 | 国产日产国无高清码2020 | 97视频在线 | 美国三级在线 | 天天色综合网站 | 亚洲大肥女ass | 日本无码人妻精品一区二区蜜桃 | 日本高清视频在线观看 | 中文字幕AV在线一二三区 | 青青草在现线观看免费 | 欧美综合区自拍亚洲综合图 | 99国内自产精华 | 免费公开视频人人人人人人人 | 成人黄色毛片 | 亚洲精品偷拍AV一区二区 | 日本高清视频:色情www | 深夜a级毛片免费视频 | 五月天婷婷在线观看高清 | 黄网13 | 777奇米四色米奇影院在线播放 | 久久成人做爰电影图片 | 亚洲成人福利在线观看 | 亚洲黄网在线观看 | 在线一二三区国产色情无码电影 | 又硬又粗进去好爽A片天美APP | 强迫惨叫粗暴白浊囚禁bl | 99久久综合国产精品免费 | 玖玖在线播放 | 亚洲欧美在无码片一区二区 | 硬棒插的好深好湿 | 精品久久久久久久一区二区伦理 | 国产网站黄 | 99re6在线精品免费观看 | 91九色视频在线观看 | 性盈盈网站久久久久忘忧草 | 亚洲黄网在线观看 | 99精品电影一区二区免费看 | 最近韩国日本免费观看免费 | 四虎最新地址通知www | 星野亚希快播 | 亚洲人成人网毛片在线播放 | 91精品乱码一区二区三区 | 天堂网在线观看视频 | 日本又色又爽又黄的A片视频免费 | 亚洲免费国产 | 欧美性xxxx极品hdsex | 黄页网站在线观看视频 | 欧美激情一区二区 | 日本高清免费观看高清电影 | 波多野结衣视频一区二区 | 天天摸夜夜添夜夜添A片小说 | 国产日本精品视频在线观看 | 国产-第1页-草草影院 | 影音先锋av色咪影院 | 四虎影视免费观看免费观看 | 欧美一级成人 | 欧美日本国产 | 一本久道久久综合狠狠躁AV | 一级毛片q片 | 国产精品dvd | 中国女人内谢69XXXXXA片 | 欧洲成人 | 成人片在线播放 | 少妇被又大又粗又爽A片 | 床戏吻戏裸戏视频超长 | 深夜国产成人福利在线观看女同 | 国产亚洲综合网曝门系列 | 国产一性一交一伦一A片 | 嫩草影院地址一二三 | 日本黄页免费大片在线观看 | 性生交大片免费看A片直播 性生生活色欲片性按摩 | 一本到一本到高清视频在线观看 | 亚洲 无码 欧美 经典 | 亚洲欧美中文日韩综合图区 | 日韩在线视频www色 日韩在线免费观看视频 | 久操亚洲| 伊人婷婷涩六月丁香七月 | 中文字幕在线视频网 | 狠狠色色综合网站 | 最好在线观看免费韩国日本电影 | 视频一区在线免费观看 | 邻居寂寞人妻中文字幕 | 日产精品乱码卡一卡2卡三 日产精品卡二卡三卡四卡乱码视频 | 在线成人免费观看国产精品 | 强壮公弄得我次次高潮A片强视频 | 一本色道久久88一综合 | 亚洲AV综合AV一区二区综合 | 中文字幕人妻丰满熟女 | 欧美乱色 | 天堂8在线天堂资源bt | 韩国理论疯狂少妇2做爰 | 中文字幕AV久久一区二区 | 日本高清视频网站www | 女人与牛交ZOZO | 午夜亚洲国产理论片二级港台二级 | 波多野结衣久久一区二区 | 精品1卡2卡三卡4卡乱码 | 2021国产成人综合亚洲精品 | 欲妇荡岳丰满少妇A片24小时 | 午夜网站在线观看免费网址免费 | 国产一区二区三区在线视频 | 亚洲精品做爰无码片 | 伊人精品网 | 午夜DJ影院在线观看免费完整高清 |