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

explorar

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

sqhunz

13 Oct 2025(atualizado 13/10/2025 às 12h56)

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

Temas

Compartilhe

Matt_Wright_Famous_croc_wrangler_found_guilty_in_evidence_tampering_trial.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 jogo jogo do sonic boomits 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

Your_pictures_on_the_theme_of_glass_.txt

Michelle_ONeill_-_BBC_News.txt foco e os ponto quente entretenimento.

GRáFICOS

nos eixos

'Massive' wildfire spike after Wales' long and hot summer.txt

Meta_covered_up_potential_child_harms_whistleblowers_claim.txt moda e os enciclopédia abrangente.

Navegue por temas

Mariah_Careys_All_I_Want_for_Christmas_is_You_went_from_modest_1990s_hit_to_Christmass_defining_song_-_heres_why.txt Manx_Bard_New_top_poet_aims_to_be_a_voice_for_islands_people.txt Mauis_grass-fire_cycle_explained.txt Mexico_revives_a_3000-year-old_ball_game.txt Mauis_grass-fire_cycle_explained.txt Michelle_ONeill_says_Gavin_Robinson_should_butt_out_of_Army_jobs_row.txt Mark_Zuckerberg_-_BBC_News.txt Microsoft_Azure_services_disrupted_by_Red_Sea_cable_cuts_.txt Marvel_Comics_-_BBC_News.txt Mason_Jones_Welshman_targets_stoppage_win_over_Oki_in_Paris_-_BBC_Sport.txt
久久精品久噜噜噜久久 | 五色网| 久久毛片免费看一区二区三区 | 国偷盗摄自产福利一区在线 | 又爽又色少妇视频 | 波多野结衣办公室在线观看 | www.最色| 亚1州区2区3区产品乱码 | 国产刺激熟女短视频在线观看 | 看色情小说 | 国产亚洲精品久久久久久鸭绿欲 | 日韩毛片在线 | 欧美性60 70 80 90 | 伊人yinren6综合网色狠狠 | 草久视频在线观看 | 国内美女自拍在线视频观看 | 精品无人妻一区二区三区 | 王伟忠周梦莹最新章节 | 国产三级精品三级在线观看 | 黄页视频在线观看免费 | 欧美日韩亚洲综合另类ac | 77快播 | 在线成人免费观看国产精品 | 国产亚洲精品久久20242024 | 免费免费啪视频观看视频 | 色爱区综合激情五月综合激情 | 久久精品免费视频观看 | game center怎么改名字 | 片黄免费| 欧美黑人添添高潮A片WWW | 色视频在线免费 | 久热爱免费精品视频在线播放 | 强伦姧人妻波多野结衣 | 2017秋霞理伦手机在线 | 久久国产主播福利在线 | 天天色爱 | 国产熟睡乱子伦视频在线观看 | 三级国产色情伦在线观看 | 日本精品一区二区三区在线 | 欧美日韩激情一区二区三区 | stormydaniels在线看| 免费韩国伦理2017最新 | 国精产品一区一区三区有限公司 | 亚洲国产精品久久久久秋霞影院 | 日本一本草久p | 成人不卡视频 | 亚洲AV久久无码精品影视 | 亚洲精品国偷拍电影自产在线 | 99精品免费久久久久久久久蜜桃 | 五月综合色婷婷影院在线观看 | 精品国产人妻一区二区三区久久 | 最近新中文字幕大全高清 | 国产免费的又黄又爽又色 | 午夜视频网站 | 91制片厂果冻传媒七夕 | 久久精品国产99国产精偷 | 综合自拍亚洲综合图区Av | 在线97| 二级片免费看 | 国产乱码精品一区二区三上 | 亚洲国产香蕉视频欧美 | 美女视频黄的全是免费 | 午夜影院一区二区 | 九九热这里只有国产精品 | 午夜精品福利在线导航小视频 | 99热网 | 毛片免费观看 | 烽火三月 | 青青青国产手机在线播放 | 四虎永久在线精品免费观看视频 | 男子扒开美女尿口做羞羞的事 | 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 | 亚洲国产综合另类视频 | 最近高清中文在线字幕在线观看1 | 激情五月天小说 | 久久精品午夜一区二区福利 | 久久无码人妻AV精品一区 | 秋霞成人国产理论A片 | 色婷婷综合在线视频最新 | 成人A片一区二区三区在线观看 | 开心色99| 亚洲精品久久久久久久不卡四虎 | 国产操操 | 亚精品一卡2卡三卡4卡无卡 | 光根电影院理论片午夜 | 亚洲人大战欧洲人A片 | 一区二区久久日韩一片棋牌 | 亚洲精品色情影片 | 波多野结衣一区2区3区 | 免费看欧美换爱交换乱理伦片 | 久久久WWW免费人成精品 | 国产91系列| 酒色网小说 | 亚洲 欧美 日韩在线一区 | 中文字日产幕码三区的做法大全 | 成人网导航| 久久精品国产99久久久 | 日本黄色aa | www色情免费观看日本 | japanese色系free日本 | 久久天堂视频 | 波多野结衣 在线资源观看 波多野结衣 一区二区 | 98久久无码一区人妻A片蜜 | 丁香花丁香五香天堂网 | 最后一夜无删减版在线观看 | 欧美国产亚洲一区二区三区 | 欧美日韩国产亚洲一区二区三区 | 牛牛影视精品一区二区在线看 | 成年女人18级毛片毛片免费观看 | 久久视频精品38线视频在线观看 | 国产精品国产三级国产在线观看 | 寂寞午夜 | 忘忧草日本社区在线播放 | 黄色片网站观看 | 全员加速中2023免费观看 | 色啪网| 2020色愉拍亚洲偷自拍 | 亚洲综合香蕉 | 四房色播网址 | 只要不是我老公1975 | 亚洲欧美日韩国产成人app | 国产精品久免费的黄网站 | 亚洲 另类 春色 小说 | 美女网站免费福利视频 | 午夜DJ影院在线观看免费完整高清 | 久久精品亚洲国产AV涩情 | 国产区免费在线观看 | 日韩一区二区在线免费观看 | 99久久精品免费精品国产 | 99精品偷自拍 | 97色婷婷 | 日本久久久久 | 国产精品久久久久无码人妻精品 | 免费国产在线视频 | 午夜福利影院私人爽 | 国产一区视频在线免费观看 | 国产91福利 | 新超碰97在线观人人澡 | 国产在线视精品在亚洲 | 人人做人人爽人人爱影视 | 久久久无码精品无码国产人妻丝瓜 | 无人视频免费观看免费直播 | 国产日产国无高清码2020 | 亚洲人成网77777色在线播放 | 天天综合亚洲综合网站 | 亚洲精品国产专区91在线 | 青草草在线观看免费视频 | 亚洲狼人| 精品国产自在拍第一码 | 伊伊人成亚洲综合人网 | 欧美成人精品第一区首页 | 深夜福利视频导航 | uzumakikushina玖辛奈本子 | 97色在线观看免费视频 | 九九久久久 | 99久久精品一区二区三区 | 97亚洲狠狠色综合久久久久 | 四虎影在线在永久观看 | 亚洲精品无码国产爽快A片 亚洲精品无码成人A片在线软件 | 免费看欧美特黄久久毛片久久 | 国产成 人 综合 亚洲网 | 99热久久最新地址 | 一区二区三区四区在线播放 | 国产在线一区二区三区四区 | 国产AV电影区二区三区曰曰骚网 | 老司机午夜在线视频 | 乱子伦xxxxvideos | 天天操天天干天搞天天射 | 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 | 最近更新中文字幕大全免费 | 亚瑟首页YASEE40444 | 午夜在线视频一区二区三区 | 欧美一区二区视频在线观看 | 国产AV寂寞骚妇 | 最近最新的日本免费 | 色社区 | 波多野结衣全集线观看456 | 国产精品永久免费视频 | 在线播放91撕破艺校舞蹈系 | 人妻无码AV系列久久电影 | 91热久久免费精品99 | 美国黄色一级毛片 | 伦理片韩国免观看 | 欧美日韩免费大片 | 神马午夜福利线及电影 | 肉伦禁忌小说 | 欧美亚洲日韩高清无码 | 亚洲色土 | 免费国产黄网站在线观看可以下载 | 久久久久国产成人精品 | 日本a级片免费 | 超碰97av 在线人人操 | 欧美高清第一页 | J8又粗又硬又大又爽又长A片 | 亚洲AV色情偷拍精品 | 男人的天堂亚洲一线AV在线观看 | 国产v视频 | 黑人又大又粗又硬XXXXX动态图 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 免费网站日本永久免费观看 | aaa国产| 亚洲欧洲精品成人久久曰 | 天天弄天天干 | 日本成本人片无码免费网站 | 精品人妻无码一区二区三区VOD | 国产精品久久欧美一区 | 国产a视频 | 国产国语 毛片高清视频 | 亚洲精品在线观看91 | 日韩精品毛片 | 海角国精产品一区一区三区糖心 | 国产一区二区无码蜜芽精品 | 日日躁夜夜躁狠狠久久AV | 三要四妾国语免费观看 | 国产免费人成在线视频视频 | 好男人午夜影院 | 国产亚洲精品久久久久久无亚洲 | 毛片黄| 国产老师开裆丝袜喷水漫画 | 天天插天天操天天干 | 久久久久久国产a免费观看黄色大片 | 最后一夜无删减版在线观看 | 波多野结衣在线影视 | 免费黄网站在线观看 | 日本三级黄网站 | 在线网站黄色 | 天天干夜夜夜 | 97SE亚洲精品一区 | 精品久久久久久久久免费影院 | 亚洲一卡二新区乱码绿踪林 | 国产中文字幕免费观看 | 波多野结衣免费观看视频 | 四虎8848随点随看 | 亚洲 欧美 国产 综合网 | 亚洲精品中文字幕无码A片老 | 性荡视频播放器在线视频播放 | 国产亚洲精品久久久性色情软件 | 亚洲日韩精品射精日 | 久热亚洲| 黑人添女人囗交做爰视频 | 精品无人区麻豆乱码1区2区新区 | 人人在线 | 秋霞成人国产理论A片 | 影音先锋av在线资源库 | 在线观看的黄网 | 国精产品一二三线999 | 亚洲香蕉在线视频 | 欧美亚洲色倩在线观看 | 亚洲AV国产AV综合AV卡 | 日本www色视频成人免费 | 又大又紧18P少妇在线观看 | 久爱综合 | 高清一级毛片一本到免费观看 | 亚洲乱色熟女一区二区三区蜜臀 | 大陆一级毛片免费高清 | 国产黄网站| av影音先锋天堂网 | 天天射天天干天天操 | 国产精品永久免费视频观看 | 国产伦精品一区二区三区免.费 | 国产成人+亚洲欧洲 | WWW射我里面在线观看 | 午夜福利视频合集4000手机 | 波多野结衣二区 | 国产v片在线播放免费观 | 色翁荡熄又大又硬又粗又视频软件 | 一区二区无码精品AV | 久久中文字幕人妻AV熟女 | 先锋影音男人av资源 | 韩国漂亮老师做爰BD | 亚洲精品一区二区三区四区五区 | 日韩视频在线精品视频免费观看 | 中文字幕极速在线观看 | 国产黄色片在线看 | 国产中文字字幕乱码无限 | 玉蒲团3之初入桃源洞 | 久久精品国产99国产精品澳门 | 看片免费所有网站 | 六月伊人| 国产一卡2卡3卡4卡公司 | 91在线看片一区国产 | 99精品国产免费久久久久久下载 | 伊人一区二区三区 | 国产伦精品一区二区免费 | 秋霞网在线伦理免费 | 日本hdxxxxx护士69bj | 午夜男女爽爽羞羞影院在线观看 | 久久久久国产精品免费网站 | 2021videos18xxxx高清| 高清无码中文字幕影片 | 日本无码色哟哟婷婷最新网站 | 午夜精品福利在线导航小视频 | 99九九视频高清在线 | 工口里番全彩全彩无遮挡 | 亚洲激情成人网 | 青草青草久热精品观看 | 国产又粗又猛又爽的视频A片 | 日韩欧美色 | 免费在线观看黄网站 | 国产二级一片内射视频播放 | 成年免费观看黄页网站 | 校草上课时狂揉我下面 | 色情无码WWW视频无码区下载 | 欧美精品九九99久久在观看 | 亚洲伊人色综合网站 | 国产激情无码激情A片软件 国产激情无码激情A片免费软件 | 午夜视频一区二区三区 | 特级太黄A片免费播放成人片视频 | 天天操天天射天天 | 久久自己只精产国品 | 日本肥熟 | 国产亚洲精品久久久久小 | 九九99香蕉在线视频美国毛片 | 日本午夜福利无码高清 | 六月婷婷激情综合 | 日本亚洲精品久久蜜臀 | 日本久久久久久久 | 麻豆国产一区二区三区四区 | 91亚洲天堂 | 国产精品视频你懂的 | 日本二区免费一片黄2019 | 大陆人妻熟妇多毛A片 | 免费观看片 | 国产天天操| 国产精品视频第一区二区三区 | 午夜精品久久久久久久久日韩欧美 | 国产鲁鲁视频在线观看免费 | 韩国A片国产浪潮AV 韩国高清不卡一区二区 | 四虎黄色影院 | 国产亚洲精品久久久999苍井空 | 国产人妻无码区免费九色 | 特级毛片在线大全免费播放 | 亚洲乱码无人区卡1卡2卡3 | blue片免费观看视频 | 国产午夜精品美女视频在线 | 日本视频免费在线 | 久久91久久91精品免费观看 | 天天爱天天色 | 里番本子侵犯肉全彩A片视频一区 | 五月婷婷六月综合 | 久久99精品久久久久久秒播放器 | 最好看的韩国日本在线观看 | 成片一卡二卡三卡观看 | 国产高潮久久精品AV无码 | 国产日韩精品SUV | 高清国产激情视频在线观看 | 日日av | 樱花草WWW在线视频播放 | 9国产露脸精品国产麻豆 | 亚洲精品中文字幕一区二区三区 | YIN乱大合集未删节TXT下载 | 精品国产午夜久久久久九九 | 囯产丰满肉体A片 | 爱你千万次韩剧免费观看全集 | BL肉YIN荡NP公厕肉便男男 | 日本欧美亚洲中文在线观看 | 大奶肥臀 | 国产精品人人爽人人做我的可爱 | 日本aaaa视频 | 奇米影视777四色米奇影院 | 把女人弄爽的特黄A大片 | 和美女同事的电梯一夜 | 99久久成人 | 麻豆一区 | 国产精品高潮呻吟爱久久AV无码 | 按摩高潮A片一区二区三区 澳门永久av免费网站 | 国产又粗又大又黄 | 老师你下面太紧进不去小黄文 | 国产毛片一级 | 国产一区二区三区乱码 | 国产成人亚洲精品91专区手机 | 狠狠躁日日躁夜夜躁A片免费 | 性做爰片免费视频看 | 性加拿大高清xxxxx | 国产一区二区免费在线观看 | 快播官网首页 | 爱搞逼综合网 | 女帝娜美罗宾群啪比赛里番acg | 成 人 网 站免费观看 | 日本免费AAAAA毛片视频 | 亚洲一区二区久久 | 性做久久久久久久免费看 | 丁香婷婷影院 | 国产v片在线观看 | 美国毛片免费看 | 欧美一级在线观看 | 天天干天天干 | 99精品中文字幕 | 欧美激情黄色片 | 国产男人的天堂在线视频 | 日本一卡二卡不卡视频查询 | 好吊色综合网天天高清 | 午夜亚洲动漫精品AV网站 | 亚洲日本欧美产综合在线 | 中文无码不卡的岛国片 | 我可以再往深处一点吗视频 | 亚洲丁香婷婷综合久久小说 | 2分30秒不间断踹息声音频app | www.av在线| 麻豆一卡2卡三卡4卡网站 | 国产亚洲AV片在线观看16女人 | 亚洲 日韩 国产 有码 不卡 | 国产又黄又爽又刺激的免费网址 | 亚洲日韩国产精品乱-久 | 国产少妇人妻 在线播放 | 无人区卡一卡二卡三乱码网站 | 亚洲精品免费日日日夜夜夜夜 | 欧美重口 | 66成人网 | 精品一区二区三区高清免费观看 | 欧美小伙与老太做爰视频 | 欧美一区二区三区不卡 | 思思久久99热只有频精品66 | 日产亚洲一区二区三区 | 久久一级黄色片 | 国产极品精频在线观看 | 九九久久久久午夜精选 | 天天操天天做 | 在线岛国片免费观看无码 | 全部免费国产潢色一级 | 久久久久久国产精品三级 | 巜疯狂的少妇4做爰HD | 在线看电影网站 | 色综合第一页 | 日韩精品欧美激情亚洲综合 | 日本最新在线不卡免费视频 | 手机看片日韩日韩国产在线看 | 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 古装一级无遮当一级毛片 | 免费看成人AA片无码视频羞羞网 | 小小视频资源免费观看高清 | va亚洲va日韩不卡在线观看 | 欧美日本在线三级视频 | 99视频30精品视频在线观看 | 精品人妻伦一二三区久久AAA片 | 激情五月开心婷婷深爱 | 99自拍视频 | 成熟人妻AV无码专区A片 | v片在线免费观看 | 午夜精品久久久久久久久 | 日韩欧美一区二区三区在线视频 | 夜夜爽202477妓女免费下载 | 男人和女人做爽爽视频免费 | 日本在线观看一级高清片 | 欧美日韩在线精品一区二区三区 | 可以免费在线看黄的网站 | 国产二级片 | 成年女人在线视频 | A国产一区二区免费入口 | 免费麻豆国产黄网站在线观看 | 亚洲区偷拍自拍29P 亚洲人成77777A片张津瑜 | 丁香色婷婷 | 国产欧美一区二区精品仙草咪 | 韩国日本香港三级 | 又硬又粗进去好爽A片中字 又长又大又粗又硬3p免费视频 | 嫩草影院地址一二三 | av岛国小电影在线观看 | 度年华免费看 | 2024夜夜干天天天爽 | 国产午夜精品美女视频在线 | 国产高清精品入口91 | 男男高H啪肉Np文多攻多一受 | 四虎影院免费在线 | 天堂资源在线最新版 | 性做久久久久久久免费看 | 老师你下面太紧进不去小黄文 | 熟女倶楽部1011熟女倶楽部 | 西部矿业集团有限公司 | 午夜在线视频一区二区三区 | 在线成 人av影院 | 亚洲高清成人 | AV国産精品毛片一区二区在线 | 97视频在线观看视频在线精品 | 亚洲精品中文字幕无码A片老 | 视频在线观看大片 | 色偷偷国色天香在线观看免费视频 | 亚洲中国精品精华液 | 无码精品一二三四区A片 | 国产精品视频h | 蝌蚪网站免费观看 | 亚洲伊人久久在 | 操美女在线视频 | 日韩亚洲国产中文字幕欧美 | A片粗大的内捧猛烈进出在线 | 久久在精品线影院 | 海角国精产品一区一区三区糖心 | 浪荡受bl高肉 | 老师好大乳好紧好深动态图 | 丁香花在线观看免费观看 | 天天干夜夜怕 | 精品国产剧情AV在线观看 | 国产日韩最新系 | 老头把我添高潮了A片视频 另类老太婆BBWBBW | 五月天婷婷激情 | 亚洲综合色丁香麻豆 | 无码人妻丰满熟妇啪啪网不卡 | 一级黄色片免费看 | 久久A情A片一区二区三区无码 | 亚洲中文无码永久在线 | 精品亚洲麻豆1区2区3区 | 啊灬啊别停灬用力啊动态图 | 国产精品内射后入合集 | 99精品欧美一区 | 无码人妻精品一区二区蜜桃色 | 婷婷色九月综合激情丁香 | 成人免费在线视频观看 | 欧美xxxxhd| 69久久国产精品热88人妻 | 国产目拍亚洲精品一区二区 | 玖玖国产 | 欧美日韩91 | chinafree×性护士vidos | 亚洲国产日韩a精品乱码 | 苍井空在线费观看 | 国产精品自在拍在线播放 | 小婷你真紧好浪水好多 | 99国产精品人妻无码免费 | 成人爽a毛片在线视频网站 成人首页 | www日韩| 免费精品国产人妻国语三上优雅 | 免费看黄色毛片 | 六月丁香综合在线视频 | 91制片厂果冻传媒大象传媒 | 久久久久国产精品免费网站 | 最近完整中文字幕1 | 中文字幕人妻熟女人妻 | 亚洲乱码日产一区三区 | 成人免费的性色视频网站 | 精品亚洲国产成AV人片传媒 | 99精品与95优品 | 国产AV亚洲精品久久久久 | 黄色免费观看视频网站 | 久久这里精品青草免费 | 全员加速中2023免费观看 | 亚洲欧洲日韩在线电影 | 玖玖在线资源 | 亚洲色t图 | 中文不卡一卡二卡 | 日本一视频一区视频二区 | 天天综合天天干 | 西方毛片| 韩国日本三级三级人 | 久久99热只有频精品6狠狠 | 欧美性爽交A片大全 | 欧美日韩视频在线成人 | 国产成人精品久久综合 | 和少妇人妻邻居做爰无码 | 巨大黑人极品videos中国 | 国产精品久久福利新婚之夜 | 舌头伸进去添少妇好爽高潮 | 开心四间房色五天 | 国产又爽又黄无码无遮挡在线观看 | 免费精品一区二区三区A片 免费黄色欧美 | 伊人久久大香线蕉观看 | 日韩一卡二卡3卡四卡2021高清妈妈的朋友 | 精品一区二区三区免费观看 | 日本三级韩国三级香港三级网站 | 久久久擼擼擼麻豆 | freev de0x x性欧美12| 九九精品免费视频 | jizz国产在线播放 | 吉泽明步 超m自缚痴女 | 丁香五月网久久综合 | 顶级少妇做爰视频在线观 | 日本iphone69 | 韩国伦理电影在线神马网 | 黄 色 免 费 网站在线观看 | 国产成人无码AA片免费看 | sss欧美一区二区三区 | 国产一级免费在线观看 | 91桃色污无限免费看 | 免费无限次永久看黄的APP | 久久奇米 | 亚洲性夜色噜噜噜网站2258KK | 成人免费毛片网站 | 亚洲AV电影天堂男人的天堂 | 色婷婷亚洲 | av我要看| 日韩精品人妻AV一区二区三区 | 影音先锋全部av女资源 | 久久精品国产99久久99久久久 | 一本久道热线在线 视频 | 国产淫语对白在线 | 国精产品999永久中国有限 | 午夜久久免影院欧洲 | 五月丁香合缴情在线看 | 缴情五月天 | 麻豆亚洲一区 | 欧美孕妇xxxxhd高清 | 亚洲日韩国产精品乱-久 | 99在线视频免费观看 | 欧美日韩不卡中文字幕在线 | 美日韩免费视频 | 韩国免费特一级毛片 | 黄网在线观看免费 | 再深点舒服灬太大了添A片 在办公室里揉护士的胸 | 无限免费动漫看片的视频 | 丁香花成 | 国产日产韩国视频18禁 | 4虎影院最新地址2024 | 欧美阿v不卡资源在线 | 亚洲精品久久无码AV片动漫网站 | 2828色情电院在线 | 亚洲午夜无码久久久久蜜臀av | 国产亚洲va在线电影 | 在线日本中文字幕 | 国产在线看片免费视频 | 国产一级视频免费 | 国产亚洲精品久久久久秋霞不卡 | 色欲AV久久人妻蜜臀绯色 | 宝贝乖把腿分大一点h欧阳凝小说 | 亚洲区视频 | 五月情视频在线观看 | 在线观看成人网站 | 日本不卡一区二区三区 最新 | 国产午精品午夜福利757视频播放 | 亚洲网址在线 | 国产婷婷亚洲999精品小说 | 午夜久久久久久 | 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 | 国内精品免费视频 | 精品一区二区三区五区六区 | 欧美操美女| 91导航在线 | 日女人免费视频 | 午夜精品影院 | 日韩国产欧美一区二区三区 | 四虎影库在线永久影院免费观看 | 日本无码人妻精品一区二区视频 | 午夜福利视频合集1000 | 国内精品久久久久久中文字幕 | 免费观看成人毛片A片2008 | 欧美精品v欧洲高清 | 在厨房被夫上司强迫中文 | 久久精品A片20242024 | 亚洲成 人图片综合网 | 张暖雅不雅视频 | 99国内自产精华 | 一女多男np高辣文h 一女多男nP现代高H | 777色情在线无码 | 六月成人网| 婷婷色网 | 欧洲成人免费高清视频 | 久久精品久久精品久久精品 | 亚洲中文字幕日本在线观看 | 插鸡网站在线播放免费观看 | 日本高清www视频在线观看 | 国产精品爱久久久久久久电影 | 国产熟女系列丰满熟妇 | 色播视频在线观看 | 国产人妻久久精品二区三区特 | 国产亚洲精品久久久999苍井空 | 有没有看片的免费资源 | 久久人人澡人人爽人人爱 | 国产区免费 | 亚洲人人爱 | 乱人妻人伦中文字幕 | 插鸡网站在线播放免费观看 | 无码AV大香线蕉伊人久久 | 日韩精品无码久久一区二区三 | 精品国产999 | 日本中文字幕有码在线视频 | 麻豆国产人妻欲求不满 | 免费动漫在线观看 | 国产99视频在线观看 | 日产免费线路一二区 | 波多野结家庭教师 | 精品麻豆一区二区三区乱码 | 日本高清视频:色情www | 五月天亚洲图片婷婷 | 久久综合九色综合欧美9v777 | 国产浓毛大泬熟妇视频 | 无码精品人妻一区二区三区颖A片 | 性做久久久久久久免费看 | 99re热视频精品首页 | 伦理片美亚影院 | 夭天色综合 | 欧美日韩国产一区二区 | 18禁用污直播下载 | 国产激情三级 | 天堂网在线最新版www中文网 | 中文国产成人精品久久久 | 91福利国产在线观一区二区 | 欧美白人黑人xxxx猛交 | 97精品在线观看 | 色情综合色情播五月 | 天天干天天干天天 | 国自产拍偷拍精品啪啪AV | 日韩中文字幕在线观看视频 | 在线观看视频99 | 真实国产乱子伦视频对白 | 久久女人被添全过程A片 | 四虎8848随点随看 | 天天插天天干天天操 | 日产乱码免费一卡二卡 | 亚洲精品国偷拍自产在线观看蜜桃 | 最近免费字幕高清在线观看 | 日本视频免费 | 精品国产亚洲午夜精品AV | 啪啪内射少妇20241027 | 亚洲精品中文字幕无码A片老 | 插骚妇好爽好骚 | 大陆极品少妇内射AAAAAA | 国产精品久久久久久久久久直 | 日本三级韩国三级韩级在线观看 | 永久黄网站色视频免费 | 亚洲国产中文字幕 | 久久婷婷国产剧情内射白浆 | 91免费国产高清在线 | 五月色网站 | 亚洲一卡一卡二新区乱码无人区二 | 欧美a色 | 欧美手机手机在线视频一区 | 香蕉久久夜色精品国产尤物 | 四虎最近网站是多少 | 国产又黄又爽又色的免费APP | 久久99国产综合精品 | 伦理亚洲| 国产精品色无码AV在线观看 | 亚洲性无码A片在线观看尖叫 | 日韩美女视频在线观看 | 丁香成人影院 | 粗大挺进朋友人妻身体里电影 | 久久综合一区二区三区 | 乳交高H糙汉宠文 | 欧美三级a | 真实国内老女人的露脸视频 | 日韩精品午夜视频一区二区三区 | 五夜婷婷 | 99在线视频精品费观看视 | 欧美人成在线视频 | 精品影片在线观看的网站 | 午夜亚洲国产理论片二级港台二级 | 麻豆爽爽妓女一区二区三区 | 一区二区亚洲精品国产精华液 | 欧洲一卡2卡三卡4卡网站国色天香 | 欧美特级特黄a大片免费 | 丁香婷婷六月综合缴清 | 国产精品永久免费视频观看 | 三级欧美 | 热99久久 | 日本三级黄线在线播放 | 亚洲色婷婷久久精品AV蜜桃久久 | 欧美一级www片免费观看 | 出差我被公高潮A片1000部 | 欧美特黄一区二区三区 | 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 | 国产精品中文字幕在线 | jizz中国日本| 中文字幕无码人妻AAA片 | 欧美精品免费xxxxx视频 | 国产一区二区内射最近更新 | 黄网址免费 | 久久性色AV亚洲电影无码 | 久久国内精品视频 | 网友自拍视频悠悠在线 | 国产视频1| 忘忧草日本在线WWW日本 | 妞干视频 | 清纯女高中生沦陷H公交车 清纯校花挨脔日常H惩罚视频 | 亚洲精品卡2卡3卡4卡乱码 | 九一抖音成长人版破解安装 | 国产69精品久久久久999三级 | 亚洲精品国产一区二区 | 国产 精品 自在 线 囯精品人妻无码一区二区三区99 | 免费 高清 日本社区 | 97久久影院 | 欧美黑人巨大性极品hd欧 | 日本黄线在线播放免费观看 | 亚州 色毛片免费观看 | 久久国产一久久高清 | 欧美精品一区二区黄A片 | 神马午夜福利线及电影 | 国产精品乱码久久久久久软件 | 国产精品人妻一区二区三区A | 国产欧洲野花A级 | 国产情侣作爱视频免费观看 | 国产一级特黄高清免费大片dvd | 日本妈妈黄色片 | 欧美精品网址 | 无码日本亚洲一区久久精品 | 成人无码精品一区二区在线观看 | 国产色精品久久人妻无码看片软件 | 国产精人妻无码一区麻豆 | 美国人成毛片在线播放 | 99re久久在热线播放最新地址 | 视频色版 | 免费永久在线观看黄网站 | 女人毛毛扒开自慰 | 欧美色v| 成人免费播放视频777777 | 美女裸体黄网站18禁免费看影站 | 日韩精品中文字幕久久 | 亚洲精品久久YY5099 | 人人爱夜夜爽日日做视频 | 色欲久久综合亚洲精品蜜桃 | 夜夜夜精品视频免费 | 激情射精爽到偷偷C视频无码 | 免费黄色在线网站 |