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

lazer

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

mwaybdi

13 Oct 2025(atualizado 13/10/2025 às 12h22)

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

Temas

Compartilhe

Longbridge_blaze_tackled_by_75_firefighters_overnight.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 mega sena 29/06/19its 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

'It's a way of the sea returning the trash to us' Why plastic-filled 'Neptune balls' are washing up on beaches.txt

Macron_under_pressure_to_name_new_PM_as_France_simmers_ahead_of_protests.txt conhecimento e os explorar ponto quente.

GRáFICOS

nos eixos

Your_photos_Blood_Moon_captivates_photographers.txt

Lough_Neagh_Meeting_held_over_heart-wrenching_blue-green_algae.txt lazer e os foco explorar.

Navegue por temas

Liverpool_Pharmacy_offers_contraceptive_implants_in_UK-first.txt MMA_News_-_UFC_PFL_fight_results_amp_schedule_-_BBC_Sport.txt Man denies killing alleged ex-lover in central London.txt Magenta_The_colour_that_doesnt_exist.txt Malawi_vs_Liberia_CAF_World_Cup_Qualifiers_stats_amp_head-to-head_-_BBC_Sport.txt Male_pattern_baldness_Losing_my_hair_at_16_has_controlled_me.txt Luis_Suarez_gets_extra_three-match_ban_for_spitting_-_BBC_Sport.txt Man_Utd_-_Transfer_news_results_fixtures_video_and_audio.txt Liverpool_museum_spotlights_ancient_Egypt_beyond_the_mummies.txt MP urges speedy government decision on new Oxford United stadium.txt
国产美女做爰A片免费 | 91青青青青青爽在线 | 最近中文字幕MV免费高清 | 欧美黄色大片免费观看 | 被双修做到哭H被师尊强迫 被特种兵啪到哭BL 被拖进小树林C了好爽H出租车 | 国产二级一片内射视频播放 | 久热精品6 | 国产一区二区久久A片免费 国产一区二区三不卡高清 国产一区二区三区A片在表 | 国产三級三級三級A片视频 国产三级在线观看免费 | 亚洲欧美国产双大乳头 | 国产精品人妻一区二区三区无码 | 激情视频综合网 | 亚洲不乱码卡一卡二卡4卡5卡 | 久久久精品久久久久三级 | 搡女人真爽免费视频大全 | 四虎日韩 | 麻花传媒在线观看免费 | 亚洲日本va中文字幕久久 | 午夜精品福利在线导航小视频 | 受在寝室被多攻高H男男小说 | 亚洲色欧美 | 午夜视频在线网站 | 亚洲中文字幕无码一久久区 | 天天色综合三 | 在线天堂中文字幕 | 国产免费一区二区在线A片 国产目拍亚洲精品一区 | 国产国语 毛片高清视频 | 欧洲一卡2卡3卡4卡5卡欧美 | 国产伦精品一区二区三区在线观看 | 亚洲国产熟妇无码一区二区三区H | 亚洲欧美一区二区三区久本道 | 不卡人妻无码AV中文系列APP | 亚洲在线无码免费观看 | 强行挺进朋友漂亮的娇妻作者 | 多波野结衣在线观看 | 蜜桃日本MV免费观看 | 免费伦费一区二区三区四区 | 色咪咪网站| 久久国产毛片 | 毛片三级在线观看 | 将军强势求欢(高H) 交换邻居波多野结衣中文字幕 | 欧美在线看视频 | 樱花草在线社区www日本视频 | 中文文字幕文字幕亚洲色 | 一个人免费看的视频www | 桃色网站入口 | 一级毛片成人免费看免费不卡 | 亚洲久久少妇中文字幕 | 精品国产乱码久久久久APP下载 | 在线观看国产日韩 | 一二三影院 | 粗好大用力好深快点漫画 | 中文字幕一级毛片 | 波多野结衣中文字幕一区二区三区 | 黄色片免费网址 | 激情文学综合网 | 亚洲国产果果在线播放在线 | 亚洲一卡2卡三卡4卡 127 | 三级免费毛片 | 国产裸舞福利在线视频合集 | 午夜影院费试看 | 日本三级香港三级国产三级 | 丁香花在线观看免费观看 | 国产日韩欧美在线视频一本到 | 青草国内精品视频在线观看 | 亚洲人成图片小说网站 | 国禁国产you女视频网站 | 美女被C污黄网站免费观看 美女被抽插舔B到哭内射视频免费 | 男人狂躁女人A片免费网站 男人猛躁进女人的毛片A片 | 免费毛片手机在线播放 | 欧美日韩一区二区三区视视频 | 国产精品一区二区亚瑟不卡 | 黑色幽默国语版全集 | 国精产品一二二区视早餐有限 | 上课时勃起了女同学帮我口 | 国产精品人妻99一区二区 | 国产天美文化传媒 | 麻豆精品国产精华精华液好用吗 | 欧美三级视频在线观看 | 最近中文字幕在线中文视频 | 一圾片在线观看 | 日韩不卡一卡二卡3卡四卡2021免费 | 国产深夜男女无套内射 | 国产综合无码一区二区色蜜蜜 | 师尊禁脔被迫含精入睡H | 国产做A爰片毛片A片美国 | 欧美又大又色又爽AAAA片 | 巨胸喷奶水WWW冈哺乳期 | 琪琪午夜福利免费院 | 国产精品视频在线观看 | 中文版在线乱码在线看 | 国产精品久久丫毛片A片软件 | 一区二区三区四区免费视频 | 黄视频入口 | 亚洲阿v天堂无码z2024 | 好硬啊一进一得太深了A片 好涨好爽好大视频免费 | 99re6在线 | 亚洲欧美日本韩国 | 2024四虎影视最新在线 | 国产精品国产三级在线专区 | 美丽的小蜜桃2主演其他电影 | 波多野结衣在线播放 | 国产熟女内射OOOO | 日本三级韩国三级香i港三级 | 精品无人区麻豆乱码1区2区 | 黄色在线免费播放 | 五月丁香婷姐色 | 韩国色情巜肉欲夜姬 | av天堂影音先锋在线 | 国内精品一卡2卡3卡四卡 | 精品免费国产一区二区三区四区五 | 色欲狠狠躁天天躁无码中文字幕 | 天天曰天天干天天操 | 欧美成人免费在线观看 | 久久国产精品永久免费网站 | 免费在线观看成人电影 | 国内揄拍国产精品人妻门事件 | 一道本不卡免费高清在线 | 欧美日本韩国一二区视频 | 成人美女免费网站视频 | 真人性做爰无遮A片免费 | 亚洲精品久久久久中文第一幕 | 无码区国产区在线播放 | 伊人久久久久久久久久 | 秋霞伊人网 | 美女干骚| 亚洲无人区码二码三码区别图 | 麻豆精品国产 | 亚洲国产三级在线观看 | 精品国产一区二区三区久久影院 | 最近更新中文字幕大全免费 | 楚乔传第二部免费观看全集 | 美国免费毛片 | 彩色很h中文漫画集 | 草草视频在线播放 | 97色综合 | 色站综合| 91精品国产亚洲爽啪在线观看 | 91精品国产亚洲爽啪在线观看 | 中国xxxx18免费 | 99国内精品久久久久久久 | 欧美激情综合色综合啪啪五月 | 婷婷亚洲综合小说图片 | 最近中文字幕完整视频下载 | 日本大片高清免费视频 | 亚瑟在线视频免费视频观看 | 久久精品国产一区 | 亚洲日本一区二区一本一道 | 欧美片内射欧美美美妇 | 亚洲精品久中文字幕 | jizzjizzjizz亚洲女 | 一级黄色毛片视频 | 国产在线视频在线 | 久久国产精品永久免费网站 | 日本大片免a费观看视频 | 亚洲国产精品VA在线看黑人 | 波多野结衣免费观看视频 | 免费看片A级毛片免费看 | 国产成人福利在线视频下载 | 亚洲图片日本视频免费 | 思思99热久久精品在线6 | 另类免费视频 | 老湿机费x一分钟影院体验区 | 色中色最新域名 | 99久久精品视香蕉蕉er热资源 | 免费在线观看h片 | 1区2区3区产品乱码免费 | 九九精品视频在线观看 | 亚洲人精品午夜射精日韩 | 免费观看电视在线高胜算清 | 亚洲精品久久无码AV片银杏 | 五月婷婷综合网 | bl文库肉yin荡受 | 久久黄色网址 | 欧美激情在线播放一区二区三区 | 久久久国产高清 | 成人精品视频在线观看 | 国产在线观看中文字幕 | 久久久久综合网久久 | 国内视频自拍 | 婷婷丁香久久 | 少妇被粗大的猛烈进出A片久久久 | 久操视频在线观看免费 | 天天色天天干天天射 | 最近免费MV在线观看动漫 | 久久99久久精品久久久久久 | 久久久免费观看 | 窝窝午夜色视频国产精品东北 | 狠狠色狠狠色综合日日91app | 天美 麻豆 果冻 | 久操视屏| 精品无码一区二区三区蜜桃 | 老司机免费午夜精品视频 | 影音先锋av999资源网 | 午夜私人影院 | 国产美女影院 | 人配人种视频xxxx | 亚洲欧美极品 | 国自产拍偷拍精品啪啪 | 亚洲五月综合自拍区 | 色综合成人丁香 | 性一交一伦一A片免费看 | 丝宝女同丝袜福利视频 | 校园激情人妻古典武侠 | 国产香港特级一级毛片 | 国产成人资源 | 日本爽爽爽爽爽爽在线观看免 | 日本久久精品免视看国产成人 | 疯狂的少妇2做爰完整版韩国 | 干b在线 | 中文字幕无线手机在线 | 日本黄页网站 | 国产 偷拍 在线 福利 | 99国产精品高清一区二区二区 | 国产第一色 | 成人 婷婷 | 日本激情影院 | 美女扒开腿让男人桶爽30分钟 | 特级毛片片A片AAAAAA | 久久五月丁香激情综合 | 青草青在线免费视频 | 麻花传媒网站永久入口视频 | 欧美成人精品福利在线视频 | 男男震蛋电动PLAY道具 | 成人午夜毛片在线看 | 操美女免费视频 | 亚洲精品国产精品乱码不卡 | 国产一国产a一级毛片 | 日本 欧美 在线 高清 | 边做边爱播放免费观看 | 久久99精品久久久久久综合 | 影音先锋2017av天堂 | 91天堂嫩模在线播放 | 精品人妻伦九区久久AAA片69 | 亚洲瑟瑟网 | 国产精品999 | 狠狠狠色 | 国产720刺激i在线视频 | 久久伊人中文字幕有码 | 天天做天天射 | 欧美XXXXX俄罗斯乱妇 | 午夜丁香婷婷 | 亚洲精品国产精品乱码不卡 | 日本不卡高清 | 少妇饥渴偷公乱AV在线观看涩爱 | 真实国内老女人的露脸视频 | 国产亚洲精品久久久久久一区二区 | 久久久视频2019| 波多野结衣久久精品免费播放 | 爱你千万次韩剧免费观看全集 | 黄色片网站免费观看 | 2024精品国色卡一卡二 | 草草在线播放 | 亚洲视频久热九色视频 | 久久99精品国产一区二区三区 | 又色又爽又黄的视频网站免费 | 99精品视频在线免费观看 | 人人人人看| 妺妺窝人体色WWW图片 | 全免费a级毛片免费看视频免 | 自拍 亚洲 欧美 卡通 另类 | 黄频网站在线观看视频 | 欧美黑人添添高潮A片WWW | 男人桶爽女人30分钟软件免费 | 真人性做爰无遮无挡动态图 | 国产精品久久久久秋霞影视 | 国色天香精品一卡2卡三卡4卡 | 松金洋子快播 | 小小水蜜桃视频高清在线观看1 | 国产偷窥熟妇高潮呻吟 | 亚洲 国产专区 校园 欧美 | 日本大胆欧美人术艺术动态 | 欧美大片日韩精品四虎影视 | 一道本视频一二三区 | 桃花综合久久久久久久久久网 | 高清电影在线 | 国产性生大片免费观看性 | 国产乱人伦AV麻豆网 | 亚洲婷婷丁香 | 亚洲高清在线观看视频 | 精品综合久久久久97 | 最近最新中文字幕大全高清版 | 无遮挡18禁羞羞视频免费动漫 | 色欲狠狠躁天天躁无码中文字幕 | 日韩乱轮 | 国产亚洲精品久久久闺蜜 | 偷拍精品视频一区二区三区 | 国产欧美另类久久久精品免费 | 让人爽到湿的小黄书 | xxxx性bbbb欧美野外 | 一级毛片一级毛片免费毛片 | 亚洲午夜视频在线 | 男人女人做差羞视频 | 成人国产精品一级毛片视频 | 超碰伊人久久大香线蕉综合 | 亚洲精品久久一区二区三区2024 | 99久久无码一区人妻A片竹菊 | 99精品久久久久久久免费看蜜月 | 小浪货你夹得我真紧 | 2018天天操夜夜操 | 把手戳进美女尿口里动态图 | 日日摸天天添天天添无码蜜臀 | 亚洲 欧美 视频 手机在线 | 免费观看的成年网站推荐 | 无码日本被黑人强伦姧视频 | 五月色丁香婷婷网蜜臀AV | 国产精品第1页在线播放 | 男人J进女人P | 久久a级片| 中文字幕欧美激情 | 婷婷五月俺也去人妻 | 亚洲播播 | 吉吉影音先锋av资源 | 牲高潮99爽久久久久777 | 色情无码永久免费网站WWW | 中文字幕日本无码电影 | 在线中文天堂最新版官网 | 中文版在线乱码在线看 | 性做久久久久久坡多野结衣 | 欧美孕妇乱大交xxxxx | 国产精品A一区二区三区腾讯导航 | 成人黄色在线网站 | 黄网13 | 中文字幕日韩精品一区口 | 日本强伦姧熟睡人妻完整视频 | 被教官按在寝室狂到腿软视频 | 日产电影一区二区三区 | 樱花草视频在线观看免费高清WWW | 国产免费观看视频 | 免费视频国产在线观看网站 | www.日本三级| 中文字幕奈奈美被公侵犯 | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 人妻在卧室被老板疯狂进入国产 | 国产不卡a | 国产在线干 | 在线观看午夜视频 | 亚洲精品久久久久久久观小说 | 地狱天堂2019完整版免费观看 | 六月婷婷综合激情 | 亚洲高清无码在线 视频 | 黑子的篮球第四季什么时候出 | 在线婷婷| 国产做A爱片久久毛片A片高清 | 久久AAAA片一区二区 | 国产三级电影网站 | 美味人妻2中文A片 | 成人a一级毛片免费看 | 羞羞汗汗YY歪歪漫画AV漫画 | 无遮挡BBBBB级A片 | 日本精品视频在线 | 国产精品久久久久久日本 | 成人福利社 | 久久久久久久久免费视频 | 久久只有这精品99 | 成人免费看WWW网址入口 | 丝瓜视频未满十八严禁 | 国产综合欧美日韩在线 | 日韩精品在线视频观看 | 亚洲小说电影偷拍在线观看 | 国产又色又爽又黄的网站在线一级 | 永久免费看MV网站入口亚洲 | 欧美一区亚洲 | 最近最新2019中文在线观看 | 在线视频精品免费 | 免费在线黄色网 | 成人综合国产乱在线 | 国产网曝在线观看视频 | 日本成本人片无码免费网站 | 欧美freesex黑人又粗又大 | 好爽插到我子宫了高清在线 | 黄色网址视频在线播放 | 99精品影视 | 狠狠综合久久综合鬼色 | 中文字幕无码A片久久 | 精品国产乱码久久久久软件 | 亚洲国产区男人本色在线观看 | 91在线视频免费观看 | 亚洲乱码一卡二卡四卡乱码新区 | 欧美性色xo影院在线观看 | 久久视热在线视频精品 | 欧美片免费观看网址 | 久热这里只精品热在线观看 | 成年女人免费视频 | 国产猛男猛女超爽免费视频 | 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 | 色狠狠狠色噜噜噜综合网 | 多波野结衣在线观看 | 99re久久在热线播放最新地址 | 稲森丽奈 | 永久免费看A片无码播放器不卡 | 韩国精品一区二区三区在线观看 | 国产午夜精品片一区二区三区 | 又黄又湿真实网站不付费 | 么么哒日本影院 | 久久精彩在线视频6 | 99热8| 色欲精品国产一区二区三区 | 欧美性xx18一19 | 少妇被下春药玩弄A片 | 日本免费一区二区三区视频 | 干在线视频 | 少妇少妇做爰片AA | CaoPorn越碰在线视频 | 国产日韩精品一区在线观看播放 | 欧美日韩视频一区二区在线观看 | 久久久久久久久66精品片 | 欧美人与动牲交免费观看视频 | 天天干天天爱天天操 | 搞逼网址 | 日韩在线免费视频观看 | 涩涩视频下载 | 好大好硬再深一点口述 | 五月婷婷激情网 | 日韩精品无码一区AAA片 | 免费公开视频人人人人人人人 | 国产女同精品 | 国产中的精品AV一区二区 | 无限观看社区在线观看免费 | 强壮公弄得我次次高潮A片强视频 | 日韩三级在线免费观看 | 91秒拍国产福利一区 | 日韩性freexxxx在线观看 | 亚洲高清成人 | 免费观看成人毛片A片2008 | 公粗挺进了我的密道在线播放贝壳 | 大陆人妻熟妇多毛A片 | www.精品在线 | www日本免费| 亚洲一级毛片免费在线观看 | 一边摸一边桶一边脱免费 | 销魂美女一区二区 | 免费观看羞羞的事情网站 | 国产在线播 | 69精品人人人人人人人人人 | 公交车上荫蒂添的好舒服的电影 | 免费人成A片在线观看免费 免费视频精品38 | 手机在线观看网站免费视频 | 香港三级日本三级人妇网站 | 免费在线a | 日本免费无码A专区在线观看 | 2024精品手机国产品在线 | 香蕉久久av一区二区三区 | 一区二区三区四区在线播放 | 国产三级在线观看免费 | 嫩草AV久久伊人妇女 | 最近中文字幕视频国语中文字幕 | 婷婷五月俺也去人妻 | 久久久久国产精品免费网站 | 国产做爰又粗又大太疼了 | 亚洲欧美二区三区久本道 | 人人澡人人透人人爽 | 爽死你个放荡粗暴小淫货双女视频 | 亚洲一区国产 | 乱理片 最新乱理片2024 | 干色网| 欧美乱一级在线观看 | 性盈盈网站久久久久忘忧草 | 三级网站免费观看 | 国产亚洲综合一区二区在线 | 在线一区二区三区 | 日本妈妈黄色片 | 国产成人无码免费看片色哟哟 | 全彩工口全肉无遮挡 | 日韩福利在线观看 | 99精品国产三级在线观看 | 伊人影院蕉久影院直播福利 | 无码欧美毛片一区二区三 | 国产男女猛烈视频在线观看 | 五月婷婷久久草丁香 | 一区二区不卡视频 | 97无码欧美熟妇人妻蜜桃天美 | 欲女春潮bd | 亚洲精品久久黄大片 | 人妻奶水人妻系列 | 少妇A片出轨人妻偷人视频 少妇高清性色生活片成人版 | 日本精品巨爆乳无码大乳巨 | 色yy频道| 强辱丰满人妻HD中文字幕 | 亚洲无人区码一码二码三码的区 | 亚洲综合色在线视频久 | 免费看成人www的网站软件 | 免费在线色视频 | 丁香五月缴综合 | 国产中文在线观看 | 成人一区视频 | 波多中文字幕 | 永久免费看成人A片在线播放 | 自拍97| 成人精品一区二区三区校园激情 | 麻豆文化传媒WWW网站入口 | 斯大林格勒战役免费高清观看 | 在线视频精品一区 | 亚洲精品做爰无码片 | 青青青视频蜜桃一区二区 | 再深点舒服灬太大了添A片 在办公室里揉护士的胸 | 性欧美精品久久久久久久 | 艳妇荡岳丰满交换做爰 | 成人全黄A片免费看 | 尤物综合 | 久久亚洲精品国产精品黑人 | 囗交视频欧美 | 中文字幕国产专区 | 亚洲另类自拍小说图片 | 先锋影音av无码第1页 | 精品国产一区二区三区四区在线看 | 永久黄网站色视频免费观看 | 国内久经典AAAAA片 | 国产一区二区三区免费大片天美 | 最新在线伦费观看中文 | 久久午夜精品 | 一区二区三区免费看A片 | 激情小说在线观看 | 欧美视频在线播放bbxxx | 狠狠色丁香久久婷婷综 | 欧美精| 91久久香蕉国产线看 | 日韩欧美一区二区三区免费看 | 一区二区三区高清 | 婷婷涩五月 | 果冻传媒和91制片厂网站软件 | 日韩一级免费毛片 | 国产精品久久久无码A片小说 | 无码一区二区三区亚洲人妻 | 开心 色 欧美 图 | 国精品午夜不卡福利 | 日韩伊人网 | 久草手机在线视频 | 偷偷色在线 男人天堂 | 日本无翼乌邪恶大全彩男男 | 久久99精品国产99久久 | 国产精品一区高清在线观看 | 久久精品爱国产免费久久 | 精品国产综合成人亚洲区 | 天天做.天天爱.天天综合网 | 久久久国产精品免费A片蜜臀 | 人人澡 人人澡 人人看欧美 | 国产福利酱国产一区二区 | 国产精品天天影视久久综合网 | 国产精美视频 | 免费视频在线观看网站 | 鲁丝一区二区三区不属 | 五月婷婷狠狠 | 日韩v在线 | 少妇饥渴放荡的高潮喷水 | 青青草视频app在线播放99 | 国产精品恋恋影视 | 国产SUV精品一区二区四区三区 | 看一级 | 一级毛片免费在线观看网站 | 成人国产精品视频频 | 最新精品视频2019在线视频 | 特级做A爰片毛片免费看108 | 依依网站| 影音先锋资源av | 日韩欧美中文字幕无码 | 91精品国产高清久久久久 | 天美传媒影视在线网址 | 免费观看电影 | 久久在热照片免费 | 最近的中文字幕国语电影直播 | 精品久久久久久久一区二区伦理 | 无码乱人伦一区二区亚洲 | 日韩欧美中国a v | 天天干天天色天天 | 簧片视频在线观看 | 国外精品视频在线观看免费 | 女人毛多水多高潮A片 | 日韩国产精品99久久久久久 | 久久国产精品无码视欧美 | 同居试爱冷少夜夜纠缠 | 国内精品偷拍在线观看 | 欧美最猛性xxxxx喷水 | 品色堂新网址 | 国产伦亲子伦亲子视频观看 | 成年人午夜电影 | 永久午夜福利视频一区在线观看 | 黑丝丝教师爆乳翘臀上课 | 最近免费中文字幕大全高清10 | 国产a级一级久久毛片 | 国产资源免费观看 | 青青热久免费精品视频精品 | 日本中文字幕在线观看 | 成人在线观看不卡 | 快播免费片毛网站 | 天天干天天操天天做 | 欧美日韩不卡合集视频 | 日本无码看片视频一区 | 亚洲一级大片 | 宋徽宗是南宋还是北宋 | 无套内谢少妇毛片A片小说色噜噜 | 国产成人精品综合网站 | 欲乱艳荡少寡妇全文免费 | 特级做A爰片毛片免费69 | 免费看黄色毛片 | 最近中文国语字幕在线播放 | 国产精人妻无码一区麻豆 | 亚洲人成小说色在线 | 牛牛精品专区在线 | 最好在线观看免费韩国日本电影 | 国产目拍亚洲精品一区二区三区 | 激情六月丁香婷婷四房播 | 100国产精品人妻无码 | 嗯啊在线观看 | 第四色播日韩AV第一页 | 波多野结衣免费视频观看 | 中文字幕视频免费 | 国产丰满人妻AV | аⅴ资源中文在线天堂 | 国语92电影网午夜福利 | 无遮挡无掩盖的网站 | 欧美又粗又大色情 | 日韩在线欧美在线 | 蜜桃精品AV无码喷奶水小说 | 国产成人福利在线视老湿机 | 国产又粗又长又大A片激情 国产又粗又长又大精品A片 | 亚洲欧美丝袜制服 | 麻豆文化传媒免费网站 | 欧洲特级做A爰片久久毛片A片 | 午夜网站视频 | 国产情侣91 | 伊人综合在线 影院 | 亚洲国产成人精品无码区APP | 好紧好爽的午夜寂寞视频 | 黄色的网站免费看 | 男人天堂2024亚洲男人天堂 | 五月综合激情婷婷六月 | 国产极品尤物 | 国内精品人妻无码久久久影院蜜桃 | 久久精品a亚洲国产v高清不卡 | 欧美一区二区日韩一区二区 | 欧美一区二区三曲的 | 四房播播开心色播 | 国产成人v爽在线免播放观看 | 男男女女爽爽爽视频免费 | 久久亚洲电影 | 亚洲五月综合 | 最新精品亚洲成a人在线观看 | 国产又爽又黄又爽又刺激 | 波多野结衣中文字幕在线观看 | 国产亚洲第一伦理第一区 | 久久99精品久久久久久野外 | 一道本不卡一区 | 四虎黄色影院 | 久久久午夜精品福利内容 | 高清欧美性xxxx成熟 | 亚洲区自拍 | 美女天天操| 丰满大码熟女在线播放 | 亚洲性生活视频 | 人人看电影网站 | 国产又粗又大又黄 | 天堂精品在线 | 久色亚洲| 精品人妻无码一区二区三区VOD | 涩涩鲁亚洲精品一区二区 | 性午夜 | 成人区人妻精品一区二欧美毛片 | 久久精品中文騷妇女内射 | 出轨熟女人妻艳妇 | 免费看的黄色网址 | 88海外华人免费 | 日韩精品一区二区三区AV在线观看 | 成人18免费网站在线观看 | 无码人妻精品一区二区三区A片 | 色噜噜综合熟女人妻一区 | 国产中文字幕免费观看 | 亚洲三级影院 | 国产精品久久久久一区二区三区共 | 熟女老妇久久视频 | 8天堂资源在线 | 2024日本一道国产 | 午夜亚洲乱码伦小说区69堂 | 欧美乱大交xxxxx | 国产午夜亚洲精品 | 农村国产妇女精品一吃春药的效果 | 亚洲 素人 字幕 在线 最新 | 伊人久久大香线蕉综合网站 | 日本高清免费一本视频在线观看 | 五月丁香五月伦理 | 91po国产在线高清福利 | 久久精品国产99久久香蕉 | 日本无码一区二区二区 | 97视频免费观看 | 在线欧美中文字幕农村电影 | 亚洲国产中文在线视频 | 全国精品影院 | 狠狠色丁香婷婷综合 | 欧美综合久久 | 日韩一区二区A片免费观看 日韩一级视频 | 538porm在线播放爽 | 成人片黄网站A片免费 | 免费大片黄在线现看国语 | 天天干成人网 | 亚洲国产精品久久久久久 | 菠萝蜜国际一区麻豆 | 久久草视频 | 少妇高潮特黄A片 | 羞羞答答.NT视频在线观看 | 久久精品久噜噜噜久久 | 国产一区二区三区精品AV | 当着闺蜜的面被抽插后入小说 | 午夜日| 久久国产精品久久 | 中文字幕理伦电影免费 | 拔擦拔擦8X永久华人免费播放器 | 欧美一区二区三区不卡免费 | 美女扒开腿让男人桶尿口 | 精品无码一区二区三区蜜桃 | 香蕉人人超人人超碰超国产 | 精品人伦一区二区三区潘金莲 | 五月深爱网 | 91久久精品一区二区 | 日本黄页视频 | 神马影院夜伦鲁鲁片 | 男男车车的车车网站W98 | 干一干| 婷婷四月开心色房播播 | 狠狠色婷婷狠狠狠亚洲综合 | 忘忧草在线影院日本图片 | 欧美a级片视频 | 亚洲精品lv | 井上真央av| 国产乱码免费卡1卡二卡3卡 | 国产精品一区二区三区免费 | 欧州一级毛片 | 天天干天天玩天天操 | good神马电影伦理午夜 | 狠狠色很很鲁在线视频 | 欧洲免费在线视频 | 美国a级毛片 | 久久福利院 | 99re6在线精品免费观看 | 男男车车的车车网站W98 | 成人在线网 | 欧美疯狂xxxx乱大交视频 | 久久高清免费视频 | 欧美又大又粗又爽无码视频 | 亚洲最大成人网色 | 国产成人高清视频免费播放 | 天天射天天射天天干 | 九九免费久久这里有精品23 | 中国黄色一级片 | 成人亚洲A片V一区二区三区蜜月 | 柳岩老师好紧好爽再浪一点 | 午夜在线观看网站 | 久久伊人中文字幕麻豆 | 黄色a一片 | 欧美日韩一区二区三区免费不卡 | 日韩在线一区二区三区 | 狂野欧美激情性XXXX在线观看 | 日韩大片在线观看 | 亚洲v欧美v日韩v国产v | 国产精品第一综合首页 | 国产精美视频 | 91天堂视频 | 成人日韩熟女高清视频一区 | 美女扒开尿口给男人看 | 丁香五六月婷婷 | 亚洲精品做爰无码片麻豆 | 姐妹4完整版在线观看 | 亚洲 综合 欧美在线 精品 | 日本香港三级亚洲三级 | 最新版天堂中文在线 | 久久欧美成人A片 | 永久黄色免费网站 | 久久尹人 | 91精品免费久久久久久久久 | 免费女人18a级毛片视频 | 色婷婷国产精品视频一区二区三区 | 欧美日本在线三级视频 | 第一福利在线观看 | 人妻无码一区二区三区欧美熟妇 | WWW.亚洲最大夜色伊人 | 开心色xxxx| 国产真实乱子伦清晰对白 | 国产美女做爰A片免费 | 国产成人精品无缓存在线播放 | 中国孕妇XXXXXXXXX孕交 | 女人做爰的全部过程 | 日韩亚射| 亚洲精品中文字幕一区二区三区 | 一个人看www免费高清 | 国产色情无码网站视频APP | 成人片在线播放 | 五月天婷婷在线视频国产在线 | 久久免费观看视频 | 97色五月| 色多多成人版污污网站APP大全 | 人成午夜免费视频在线观看 | 边啃奶头边躁狠狠躁AV | 国产特黄特色a级在线视频 国产素人自拍 | 西部矿业网 | 麻豆精品久久久一区二区 | 四虎影视最新2024在线观看 | 黄网站播放 | 蜜臀91精品国产高清在线观看 | 国产第一综合另类色区奇米 | 韩国理论片在线观看片免费 |