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

foco

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

qwnxzdd

13 Oct 2025(atualizado 13/10/2025 às 00h46)

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

Temas

Compartilhe

Teams_-_Cricket_-_BBC_Sport.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 como jogar no jogo do bicho onlineits 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

Yorkshire reservoir levels fall below one third despite rainfall.txt

Swinney_sets_out_latest_plan_for_an_independence_referendum.txt enciclopédia e os ponto quente conhecimento.

GRáFICOS

nos eixos

Yorkshire_reservoir_levels_fall_below_one_third_despite_rainfall.txt

The Doha Hind The charming 10th-Century garden ornament.txt abrangente e os explorar ponto quente.

Navegue por temas

Syria_accuses_Israel_of_carrying_out_air_strikes_.txt Suspense_betrayal_and_violence_The_1930s_tropical_utopia_that_became_a_living_hell.txt Swedes_like_generous_personal_lived-in_spaces_The_Scandi_homeware_style_that_Swedish_people_love.txt Tariffs_are_pivotal_moment_says_Eli_Lilly_boss.txt Syria_At_the_final_checkpoint_before_the_dangerous_road_to_Suweida_city.txt Thaksin_Shinawatra_Thai_court_rules_that_ex-PM_must_serve_one_year_in_jail.txt Teenage_boy_stabbed_at_Birmingham_college.txt Taylor_vs_Serrano_3_Katie_Taylor_wins_trilogy_fight_-_BBC_Sport.txt TGAU_-_Wales_-_BBC_Bitesize.txt Sussex_couple_held_in_Iran_in_dire_situation_says_son.txt
亚洲综合香蕉 | 国产在线欧美日韩一区二区 | 久久久精品久久久久久久久久久 | 免费看国产黄线在线观看 | 国产亚洲精品美女 | 青草国内精品视频在线观看 | 最近中文字幕免费国语6 | 国产区精品综合在线 | 免费精品美女久久久久久久久 | 亚洲国产日韩制服在线观看 | 日韩xp www.15ut.com | 国产美女被爽到高潮免费A片 | 久久国产成人亚洲精品影院老金 | 秋霞黄色| 亚洲精品入口一区二区乱麻豆精品 | 66精品综合久久久久久久 | 18禁无遮挡爽爽爽无码视频 | 亚洲色大成网站WWW永久在线观看 | 中文字字幕在线中文乱码 | 久久精品日韩一区国产二区 | 一区二区中文字幕在线观看 | 亚洲精品做爰无码片麻豆 | 黄色在线看网站 | 亚洲精品一区二区三区新线路 | 亚洲国产tv| AV色欲无码人妻中文字幕 | 强壮公让我夜夜高潮A片免费看 | 快点好深好爽受不了了 | 亚洲一级特黄 | 日本不卡免费高清视频 | 春日野结衣在线视频 | 国产亚洲精品第一区香蕉 | 强奷乱码欧妇女中文字幕熟女 | 一本一道久久综合网 | 阳茎进去女人阳道过程免费看 | 欧美日韩国产一区二区 | 天天插天天射天天操 | 91网站免费看 | 天天综合天天干 | GAY亚洲男男GV在线观看网站 | 大泽佑香迅雷种子 | 国产精品久久久无码A片小说 | 亚洲欧美日韩v中文在线 | 免费成人毛片 | 日本中文字幕不卡 | 992tv国产人成在线观看 | 新快猫KM8KW64| 日本一曲二曲三曲高清 | 亚洲制服丝中文字幕 | 国产精品长腿丝袜第一页 | 一本大道一卡二卡入口2021 | 麻豆国产自制在线观看 | 国产在线观看黄色 | 国产福利视频在线精品 | 国产亚洲精品久久久久久鸭绿欲 | 五月色播先锋在线丁香 | 成人在线你懂的 | 99国产视频| 口内射精颜射极品合集 | 免费精品国产人妻国语三上优雅 | 成人性视屏 | 国产麻豆视频免费观看 | 成人黄色免费在线观看 | 黄色免费看片网站 | 最近中文字幕高清中文字幕网1 | 成人免费影| 国产精品色拉拉免费看 | 精品国产自在现线拍一本 | av影音先锋天堂网 | 国产精品久久毛片 | 中日韩一卡二卡三卡四卡在线观看 | 国产v综合v亚洲欧美大片 | 99热久久这里只精品国产WWW | 狠狠五月深爱婷婷网免费 | 天天做夜夜做久久做狠狠 | 一区二区影院 | 色交网站 | 啊轻点灬大JI巴又大又粗A片 | 翁莹情乱50章三人同床 | 色撸橹图片2015最新版 | 亚洲丰满女人ass硕大 | 精品一区二区久久久久久久网站 | 伊人婷婷涩六月丁香七月 | 国产精品色情国产三级在线观 | 青青热久免费精品视频在app | 国色天香日本免费观看 | 综合无码色情一区二区 | 樱花草在线社区www日本视频 | 精品熟女少妇AV久久免费软件 | 日本免费专区在线观看中破初 | 欧美 日韩 综合 无码 专区 | 日韩精品欧美视频 | 在线看片av免费观看 | 无码又爽又刺激A片涩涩动漫软件 | 96免费精品视频在线 | 亚洲自偷自拍另类图片 | 在线观看黄网 | 精品熟女少妇AV久久免费A片 | 欧洲乱码卡1卡2在线 | 日韩欧美不卡在线 | 亚洲永久在线观看 | 国产亚洲精品97在线视频一 | 国产午夜亚洲精品 | 日韩精品久久久久久 | 高清中文字幕视频在线播 | 国产精品高潮呻吟AV久久小说 | 中文人妻熟女波多野结衣 | 久久久久久国产视频 | 国产精品视频在线观看 | 岛国三级视频 | 性夜影院午夜看片 | 99er精品视频 | 亚洲精品久久久午夜福利电影网 | 国产成人禁片在线观看 | 欧美精品第1页在线播放 | 亚1州区2区3区产品乱码 | 国产偷人妻精品一区 | 影音先锋2024色资源网 | 国产精品扒开腿做爽爽爽视频 | 欧美一级片在线免费观看 | 少妇又大又粗又硬啪啪小说 | 一级毛片免费在线 | 日本俺去也影院 | 久久久网 | 狼狼躁日日躁夜夜躁A片 | 无遮挡国产高潮视频免费观看 | 欧亚乱色熟一区二区三四区 | 天堂资源8中文最新版在线 天堂资源8中文最新版 | 免费点影在线观看网址大全 | 美女视频一区二区三区 | 国产v片| 亚洲亚洲色爽免费视频 | 欧美一区二区三区激情啪啪 | 久久99精品国产99久久 | 中文字幕 制服 亚洲 另类 | 婷婷激情五月综合 | 国产精品一区在线麻豆 | 强壮公让我夜夜高潮A片视频 | 欧美性久久| 涩涩快播 | 亚洲极美女高清视频 | 欧美综合自拍亚洲综合图 | 久久久久久综合一区中文字幕 | 色综合天天综一个色天天综合网 | 亚洲精品久久久久久蜜臀 | 天天做天天爱天天大综合 | 午夜寂寞影 | 日韩娇小性hd | 五月综合激情网 | 色综合小说网 | 伦理片在线线249 | 国产色情一区二区不卡毛片 | 最近最新中文字幕完整版免费高清 | 最新亚洲国产手机在线 | 亚洲AV无码乱码国产麻豆穿越 | 日本视频免费高清一本18 | 91精品国产免费久久久久久 | 亚洲自偷自拍另类图片 | 香蕉成人啪国产精品视频综合网 | 97人妻一区二区精品免费 | 欧美精品第三页 | 新香蕉视频在线 | 坐在校草身上摩擦H | A片扒开双腿猛进入免费观看 | 久久五月色婷婷丁香六月综优物 | 波多野结衣办公室在线 | 九九精品视频在线 | 又爽又色又舒服A片免费 | 中文字幕色 | 国产香蕉视频在线观看 | 在线看免费完整欧美电影网站 | 偷自视频区视频首页 | 性色免费视频 | 麻豆影片| 欧美在线视频一区在线观看 | 狠狠的撸2014最新版 | 波多野中文字幕s | 亚洲性av免费 | XL上司在线完整版无马赛克 | 久久七国产精品 | 色噜噜狠狠色综合久 | 天天操免费视频 | 点击进入好看的电影网站 | 国产亚洲综合网曝门系列 | 欧美又粗又深又猛又爽A片免费看 | 日日碰狠狠躁久久躁7777 | 一级毛片不卡片免费观看 | 在线综合亚洲中文精品 | 亚洲国产成人综合精品 | 在线久综合色手机在线播放 | 在线观看国产小视频 | 天美传媒国产今日推荐 | 国产三级级在线观看大学生 | 我是唱作人第二季免费 | 日本三级韩国三级香i港三级 | 婷婷色 | 午夜久久久精品 | 麻豆文化传媒官方网站入口免费 | 激情五月婷婷综合 | 亚洲欧美日韩另类精品一区二区三区 | 日本边添边摸边做边爱60分钟 | 奇米网四色 | 5566在线资源 | 国产精品密蕾丝视频下载 | 91久热| 久久国产精品99久久久久久牛牛 | 自拍亚洲一区 | 欧美人成在线视频 | 波多野结衣在线一区二区 | 久久只有这里有精品4 | 色情A片做爰片 | 久久精品视频91 | 中文字幕久久熟女人妻AV免费 | 国产午夜亚洲精品一区 | 精品淑女少妇AV久久免费 | 欧洲VIDEOS重口变态深 | 狠狠色丁香婷婷久久综合 | 狠狠色婷婷狠狠狠亚洲综合 | 无码AV动漫精品一区二区免费 | 国产麻豆AV一区二区三区 | 国偷自产AV一区二区三区动漫 | 色欲精品国产AV久久久 | 国产一级特黄高清免费下载 | 日韩伊人网 | 婷婷综合在线 | 国产偷国产偷亚洲高清午夜 | 成熟丰满毛茸茸 | 伊人福利网 | 国产精品亚洲欧美动漫卡通 | WWW色情成人免费视频 | 黄色片视频网 | 爱色影音播放器下载 | 日韩亚洲国产中文字幕欧美 | 日韩在线毛片 | 九九久久亚洲综合久久久 | 亚洲欧美韩国综合色 | 亚洲欧洲日本国产专区一区 | 国产精品美女免费视频观看 | 狠狠干干干 | 丝袜在线视频 | 777精品出轨人妻国产 | 中文字幕高清免费日韩视频在线 | 久久中文字幕无码A片不卡古代 | 被黑人猛烈进出到抽搐动A片 | 老司机免费视频福利0 | 老色网站 | 国产精品一区二区三区免费 | 东日韩二三区 | 亚洲性av免费 | 琪琪热码在线中文字幕 | 嗯啊插坏了射给我 | 爱色影音播放器下载 | 17C丨国产丨精品入口永久地址 | 猛烈顶弄H| 日本无码人妻精品一区二区蜜桃 | 卡一卡二免费看 | 天噜啦精品免费视频日本免费视频 | 妻子的背叛免费看 | 天堂а√在线中文在线 | 色情A片成人网站免费看 | 中国少妇内射XXXHD免费 | 欧美亚洲另类丝袜自拍动漫 | 久久久精品久久 | 无码乱人伦一区二区亚洲 | 最近中文字幕免费完整版2019 | 欧美重囗味成人无码区 | 国产人妻久久精品二区三区老狼 | youjizz国产| 亚洲色站导航 | youjizz国产 | 午夜精品久久久久久久第一页 | 免费大片在线观看视频网站 | 亚洲va久久久噜噜噜久久天堂 | 丁香花在线观看免费观看图片 | 日韩一道本 | 日本无码免费一区二区不卡的视频 | 成人无码A片在线观看 | 色欲AV亚洲永久无码精品麻豆 | 中文字幕无码高清晰 | 妞干网免费在线 | 日本成片免费高清 | 五十路一区二区三区视频 | 韩国精品一区二区 | ACG全彩绅士口工侵犯漫画 | 精品视频2024在线视频 | 国产午夜亚洲精品 | 免费欧三a大片 | 操亚洲女人 | 毛茸茸xxx娇小 | 高清不卡二卡三卡四卡无卡 | 哪个网站可以看正版动作片 | 日本综合视频 | 日本三级一区二区三区 | 性欧美荷兰极品 | 女同网站在线观看免费 | 男女爽爽午夜18污污影院 | 日本电影在线看正片 | 一本到午夜92版福利 | 添bbb免费观看高清视频 | 日韩免费网站 | 深夜a级毛片免费视频 | 中文字幕完整高清版 | 午夜视频www| 色偷偷网站 | 日本做爰A片AAAA | 在线不卡日本v二区 | WWW国产精品内射老熟女 | 国产精品久久久久9999小说 | 日本无码蜜桃波多野结衣 | 五级黄色| 国产护士一区二区三区 | 2024一本久道久久综合狂躁 | 黄色片在线观看网站 | 国产一级特黄aaa大片 | 日小骚B少妇真舒服 | 日韩欧美中文字幕公布 | 日本中文字幕在线视频站 | 91中文字幕在线视频 | 69福利| 国产 精品 自在 线 囯精品人妻无码一区二区三区99 | 国产福利91精品一区二区三区 | 日韩高清一区二区三区不卡 | 精品亚洲国产熟女福利自在线 | 久久人妻熟女中文字幕AV蜜芽 | 伦理电影我不卡87 | 亚洲A片成人无码久久精品 亚洲A片不卡无码久久 | 欧美野外疯狂做受XXXX高潮 | 人禽互交50篇视频 | 波多野结衣久久一区二区 | 好看的电影你懂的 | 一区二区三区91 | 午夜宅宅伦电影网中文字幕 | 久久草草亚洲蜜桃臀 | 先锋影音av无码第1页 | 人人看快播电影网 | 免费电影在线看 | 亚洲精品无码成人A片在线古代 | 四房播播 四房播播 | 日本啊啊啊视频 | WWW国产成人免费观看视频 | 青草娱乐| 成人无码在线视频区 | 一本到午夜92版福利 | 日韩午夜网站 | 亚洲精品色情APP在线下载观看 | 欧洲-级毛片内射 | 分享一个无毒不卡免费国产 | 小视频免费观看在线 | 国产人妻熟女偷在线视频 | 久久综合老色鬼网站 | 色综合天天综合网站中国 | 国产啪亚洲欧美精品无码 | 日韩精品 欧美 | 91精品人成在线观看 | 国产a级一级久久毛片 | 四虎影视库免费永久视频 | 亚洲第一成网站 | 天天综合天天操 | 亚洲午夜久久 | 91在线导航 | 亚洲欧美日韩v中文在线 | 爽天天天天天天天 | 99国产亚洲精品久久久久久 | 亚洲精品日本 | 亚洲色一色噜一噜噜噜 | 性一乱一交一A片视频 | 国产精品久久久久久久午夜片 | 乱小说录目伦合集 | 日韩国产一区二区三区四区五区 | 单亲真实乱子伦免费视频 | 伊人精品视频直播 | 鲁鲁在线视频 | 三级网站免费观看 | 国产特黄又粗又硬A片 | 国产乱人偷精品人妻A片 | 91精品国产高清久久久久 | 亚洲一个色 | 高清无码在线苍井空 | 久久国产精品人妻一区二区 | 婷婷激情五月网 | 国产精品扒开腿做爽爽爽视频 | 国产亚洲精品久久久久久入口 | 亚洲男人王 | 中文字幕无线观看高清 | 日日噜噜夜夜狠狠tv视频免费 | 99re66热这里只有精品免费观看 | 国产精品久久毛片 | 成人免费视频一区 | 色鬼网站 | 美女直播洗澡的软件下载 | 桃子视频在线观看高清免费视频 | 亚洲精品中文字幕乱码影院 | 一级做a爱过程免费视 | 亚洲黄色在线观看网站 | 欧美日韩第二页 | 苍井空a 集在线观看网站 | 黄乱色伦| 香蕉伊人不卡在线看 | 日韩色影院 | 久久精品国产亚洲AV成人 | 草草影院永久发布地址 | 日本一区二区三区在线看 | 亚洲字幕AV一区二区三区四区 | 97伦理97伦理2018最新 | 欧美三级视频在线观看 | 亚洲成人一区 | 欧美疯狂做爰XXXX高潮 | 操美女在线播放 | 欧美最猛性xxxxx喷水 | 日本精品一区二区三区在线 | 色导航站| 国产精品久久久久久亚洲小说 | 影888午夜理论不卡 樱井莉亚快播 | 色www.亚洲免费视频 | 97久久曰曰久久久 | 欧美成人香蕉网在线观看 | 日韩在线视频www色 日韩在线免费观看视频 | 精品AV一区二区三区不卡 | 午夜影院在线费看 | 热门电影在线观看 | 亚洲成在人色婷婷 | 啊灬啊灬啊灬快灬A片免费直拍 | 成人h在线| 国产精品日日做人人爱 | 日本又色又爽又黄又免费网站 | 成年私人影院网站 | 国产刺激熟女短视频在线观看 | 清扫魔| 天天亚洲综合 | 欧美性生交片4 | 鲍鱼网站最新网名2021 | 日本在线无 | 在线观看黄色网页 | 亚洲va在线va天堂va手机 | 欧美一卡二卡三卡四卡 | 免看黄大片AA | 99视频精品全部免费 在线 | 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 | 亚洲AV久久无码精品蜜桃 | 免费啪视频观看视频 | 女同学粉嫩无套第一次 | 2024极品少妇XXXO露脸 | 亚洲综合色婷婷六月丁香 | 国产乱码精品一区二区三区四川人 | 国产亚洲精品久久播放 | 亚洲AV怡红院影院怡春院 | 伊人无码高清 | 欧美高清欧美videosex | 99视频国产精品免费观看app | 狠狠爱亚洲五月婷婷av | 丝瓜app下载网址进入安卓免费 | 深爱激情五月婷婷 | 色欲AV亚洲一区无码少妇 | 久久久国产视频 | 成电影人免费网站 | 国产色婷婷 | 五月丁香| 五月天婷婷综合网 | 性生爱120分钟 | 国产毛片精品一区二区色欲黄A片 | 91制片厂果冻传媒2022 | 亚洲 综合 欧美在线 精品 | 黄免费在线 | 亚洲激情a | 强壮的公次次弄得我高潮A片日本 | 成人 在线 视频自拍 | 高清无码午夜福利在线观看 | 吉吉影音先锋av资源网 | 神马影院夜伦鲁鲁片 | 国产成人ay手机在线观看 | 成人久久18免费游戏网站 | 95国产精品人妻无码久 | 亚洲一区综合在线播放 | 国产精品久久久久久久人热 | 伦理片在线线看手机版韩国 | 漫画工囗全彩内番漫老师 | 国产免费又黄又爽又色的小说 | 中文天堂资源在线WWW | 快播泷泽萝拉 | 囯产精品宾馆在线精品酒店 | 亚洲精品久久久久秋霞 | 亚洲 图片 另类 综合 小说 | 男人把女人桶到爽免费看视频 | 免费无码又爽又刺激A片软 免费无码又爽又刺激A片小说在线 | 国偷自产视频一区二区99 | 3d人肉蒲团之极乐 | 日韩精品极品视频在线观看免费 | 久久频这里精品99香蕉久网址 | 深夜国产成人福利在线观看女同 | 免费三级毛片 | 四虎综合| 国产精品久久久亚洲第一牛牛 | 亚洲精品国产一区二区贰佰信息网 | 97视频免费上传播放 | 狠狠色噜噜狠狠狠888米奇 | 亚洲无人区码一码二码三码的区 | 无码精品人妻一区二区三区... | 日韩天堂视频 | 无码又黄又爽又舒服的A片 无人区AV在线观看 无人区乱码区1卡2卡三卡在线 | 日本精品中文字幕在线不卡 | 涩涩影视 | 中文字幕在线不卡视频 | 琪琪色原网 | 色猫成人网 | www.色中色 | 久久久久国产精品免费 | 免费色站 | 国产熟妇久久精品亚洲熟女图片 | 奇米网久久 | 亚洲欧洲国产成人综合一本 | 久久中文娱乐网 | 最爽快的乱肉小说合集500篇 | 亚洲欧美日韩中文v在线 | xxxx性bbbb欧美野外 | 国产98在线 | 青青国产线观观看视频 | 日韩A片无码一区二区三区电影 | 欧美日韩国产综合在线小说 | 国产资源在线看 | 三级毛片在线看 | 欧美高清一级 | 日本毛片高清免费视频 | 日本强伦姧熟睡人妻完整视频 | 一级毛片免费观看不卡的 | 婷婷六月天激情 | 美女解开胸衣露出奶头的游戏 | 麻婆豆传媒一区二区三区 | 久久免费区一区二区三波多野 | 91精品导航在线观看 | 高清国产一级精品毛片基地 | 精品一卡二卡三卡四卡视频区 | 久久国产一久久高清 | 午夜影院一区二区三区 | 日韩有码在线观看 | 调教済み変态JK扩张调教し | 热99re久久国超精品首页 | 工口 里番 全彩 无码 | 亚洲国产高清在线观看视频 | 亚洲人成在线播放 | 国产成人精品男人免费 | 人人在线碰碰视频免费 | 少妇无套内谢久久久久 | 男女夜晚在爽视频免费观看 | 91综合久久久久婷婷 | 免费黃色大片 | 欧美日韩综合无码中文字幕 | 伦理片免费秋霞e | 色秀视频免费高清网站 | 中文字幕在线免费观看视频 | 色开心 | 丁香婷婷亚洲 | 黄色片网站在线观看 | silk labo117在线观看 | 人妻少妇69式99偷拍 | a国产精品 | 四虎在线视频免费观看 | 亚洲永久免费视频网站 | 亚洲午夜免费 | 女部长出差的滋味HD | 玖玖视频网 | 午夜性啪啪A片免费播放 | 中文字幕无码高清晰 | 黄a级免费 | 亚洲精品久久久久久久蜜臀老牛 | 日韩一区二区三区无码A片 日韩一区二区三区射精 | 午夜高清视频 | 可以看三级的网站 | 国产精品福利尤物youwu | h网址在线 | 六月丁香综合在线视频 | 91新视频 | 日韩欧美视频一区二区在线观看 | 999热| 天堂岛最新版在线bt天堂 | 国产小视频国产精品 | 人妻少妇久久久久久97人妻 | 上课时勃起了女同学帮我口 | 久久国产一级毛片一区二区 | 最近中文字幕免费大全 | 麻豆 | 五月情视频在线观看 | www.午夜 | 粗大新婚娇妻娇嫩 | 青草tv| 打屁股gay| 杨门女将肉艳史k8播放 | 日韩美女自卫慰黄网站 | 亚洲精品久久YY5099 | 小草影院亚洲私人影院 | 免费看毛片网站 | 永久免费无码AV国产网站 | 韩国三级伦理久久影院 | 四虎永久在线精品免费观看 | 色婷婷小说网 | 精品人妻无码一区二区三区手机版 | 黄色成人在线观看 | 91精品福利在线 | .精品久久久麻豆国产精品 0855午夜福利伦理电影 | 欧美最猛性xxxxx亚洲精品 | 久久9999国产精品免费 | 国产一区二区在线免费观看 | 亚洲精品一区三区三区在线观看 | 97自拍| 全国三级网站免费观看 | 国产福利一区二区麻豆 | 精品无人区麻豆乱码1区2区新区 | 开心成人 | 日韩在线操 | 三龙一凤H啪肉Np文 三男一女伦奷A片 | 国产不卡在线视频 | 狠狠色噜噜狠狠狠狠色吗综合 | 精品91自产拍在线观看99re | 大地影院日本高清免费完整版 | 亚洲一级毛片视频 | 国产高清自拍 | 国产精品免费小视频 | 无码做爰全过程免费的床震 | 工口里番ACG全彩无码下拉式 | 国产福利在线看 | 日韩经典欧美一区二区三区 | 久久视频精品3线视频在线观看 | 最新激情网站 | 精品久久久久久久久免费影院 | 性一交一乱一交A片久久四色 | 92kyy福利合集 | 日韩中文有码高清 | 免费看黄色一级 | 免播放器在线 | 校园舂色另类小说经典色 | 蜜桃日本免费看MV免费版 | 久久精品a亚洲国产v高清不卡 | 麻花传剧mv在线看高清 | 女人下边被添全过程A片 | 天天玩天天干 | 婷婷亚洲天堂影院 | 偷拍欧洲亚洲性 | 黄色在线网站视频 | 激情6月丁香婷婷色综合 | 免费大片现在播放 | 国产日韩精品视频 | 精品免费国产一区二区三区四区 | 国产亚洲精品久久无码小说 | 97免费人妻在线观看 | 狠狠cao在线视频观看 | 亚洲日本高清成人aⅴ片 | 亚洲午夜精品A片一区三区无码 | 国产超级乱淫视频播放免费 | 99久久综合精品国产 | 欧美在线一区二区 | 国产精品久久久久影院 | 国产亚洲精品久久久性色情软件 | 色情无码WWW视频无码小说 | 天天射天天操天天干 | 亚洲国产艾杏在线观看 | 国产精品久久久久无码AV色戒 | 校园刺激全黄H全肉细节文 校园激情人妻古典武侠 | 伊人影院蕉久影院直播福利 | 国自产拍偷拍精品啪啪一区二区 | 亚洲一区在线观看视频 | 中国毛片免费看 | 播五月色五开开心五月 | 亚洲精品网站日本xxxxxxx | 国产精品黄网站免费进入 | 制服师生av在线 | 中午字幕在线观看 | 成年网站未满十八禁毛片免费 | 欧美孕妇xxxxhd高清 | chinesefree国产中文 | 91网站免费| 苍井空三年级片网站 | 四虎影库久免费视频 | 中文字幕国产精品 | 岛国黄色| 伦敦金属交易网价 | 激情综合在线观看 | 综合图区亚洲偷自拍 | 天堂 亚洲 av 日韩 | 国产精选在线观看 | 日本中文字幕在线视频站 | 国产成人综合网在线播放 | chinese国产乱在线观看 | 美女黄网站永久免费观看网站 | 扒开女人下面使劲桶动态图 | 少妇大乳妓女毛片A片 | 日本久久久WWW成人免费毛片丨 | 欧美乱妇无码毛片 | 激情aa视频试看免费 | 婷停五月深爱五月 | 巜隔壁放荡人妻bd高清 | 在线看av的网站 | 激情区小说区偷拍区图片区 | 影音先锋av资源男人站 | 久久精品国产99国产精品免费看 | 啊灬啊别停灬用力啊动态图 | 国产精品美女久久久久AV超清 | 日产精品一区到六区免费 | 1级a的观看视频 | 国产人成精品综合欧美成人 | 又大又爽又黄无码A片在线观看 | 在线免费观看日本视频 | 久久精品午夜一区二区福利 | 六十路の高齢熟女が中文在线播放 | 国产一区二区三区影院 | 久久国产精品99久久久久久牛牛 | 有色影院 | 色爽黄1000部免费软件下载 | 日本国产精品无码一区免费看 | 二级片名| 天堂在线91 | 国产亚洲欧美日韩综合综合二区 | 日本视频在线免费 | 翁公又大又粗挺进了我 | 性欧美久久 | 国模左儿| 日韩高清特级特黄毛片 | 亚洲成综合人影院在院播放 | 伊人22综合 | 五月天婷婷免费观看视频在线 | 青青青国产在线手机免费观看 | 国产欧美日韩不卡一区二区三区 | 最近韩国动漫免费观看视频 | 高清一区二区三区 | 亚洲国产精品无码中文在线 | 国产又色又爽又黄又刺激18 | 久久婷婷国产剧情内射白浆 | 亚洲色欲色欲202477小说 | 亚洲中文字幕在线第六区 | 夜色撩人在线视频 | 中文字幕在线不卡日本v二区 | 涩涩涩爱撸 | 护士一级aaaaaa毛片 | 欧美日韩福利视频一区二区三区 | 国产精品无码免费专区午夜小说 | 老王轻一点儿好爽在深一点 | 在线观看污网站 | 免费又色又爽又黄的视频 | 成人国产精品免费软件 | 亚洲va欧美va国产综合下载 | 欧美精品1 | 情深不悔再爱难为 | 国产精品久久久久久久久鸭 | 久草中文视频 | swag国产精品| 亚洲天天一色综合AV | 亚洲卡一卡2卡三卡4麻豆 | 黄毛片一级毛片 | SM女人捆绑调教网站A片软件 | 久久国产网 | 成全免费高清观看在线 | 亚洲三级免费 | 亚洲 日韩 欧美 制服 无码 | 亚洲阿v天堂在线2024 | 亚洲精品久久久WWW游戏好玩 | 精品午夜中文字幕熟女人妻在线 | 欧美极品videosvideohd | 777片理伦片在线观看 | 中文网丁香综合网 | 色综合一区二区三区 | 欧美亚洲综合高清在线 | 最近最新2019中文在线观看 | 国产成人精品福利网站app | 91精品手机国产在线能 | 国产在线亚洲精品观看不卡 | 成电影人免费网站 | 欧美孕妇乱大交xxxxx | 一女被多男枪H又黄又激烈 一女多男np高辣文h | 精品国产手机视频在在线 | 日本黄色网址大全 | 久久精品视在线观看2 | 免费观看色 | 一抽一出BGM试看60分 | 精品高清1卡2卡3卡4麻豆 | 国内卡一卡二卡三免费网站 | 国产熟睡乱子伦视频在线播放 | 再插深点嗯好大好爽 | 日韩精品亚洲专在线电影 | 国产精品国产三级在线专区 | 午夜久久网 | 瑟瑟网站免费网站入口 | 日韩美无码有码人妻精品 | 日韩亚洲AV无码波多野结衣 | 免费观看又色又爽又黄的小说一 | 97精品人人A片免费看 | 无遮挡国产高潮视频免费观看 | 久久久精品日本一区二区三区 | 久久乐国产综合亚洲精品 | 一级黄色免费网站 | 成人免费20242024被爆出 | 丝袜诱惑在线 | 中文字幕欧美日韩在线不卡 | 三级在线国产 | 国产伦精品一区二区三区免费 | 久久午夜免费视频 | 开心久久婷婷综合中文字幕 | 蝌蚪自拍自窝 | 国产免费观看a大片的网站 国产免费福利网站 | 天堂中文资源在线地址 | 成人高清网 | 一本久道久久综合中文字幕 |