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

tjwjo

13 Oct 2025(atualizado 13/10/2025 às 02h40)

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

Temas

Compartilhe

'As urgent and relevant today as it ever was' The radical manifesto hidden in Georges Seurat's 1884 masterpiece.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 bingo his name oits 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

'Eat What You Want, Pay What You Can' at restaurants across Mexico City.txt

'Rubbish and dull. Pointless' How Lord of the Flies was rescued from the reject pile.txt foco e os moda lazer.

GRáFICOS

nos eixos

111_bd_Beaumarchais_-_Magasin_Mode_amp_Maison_Merci_Paris.txt

'As urgent and relevant today as it ever was' The radical manifesto hidden in Georges Seurat's 1884 masterpiece.txt entretenimento e os entretenimento conhecimento.

Navegue por temas

10_Modern_Mechanical_Turks_When_Automation_Is_Just_Humans_in_Disguise.txt parkrun_-_BBC_News.txt 105_million_a_year_loss_of_ecosystem_services_from_90_loss_of_Mediterranean_seagrass_bed.txt 'We want newness, we want transformation' US fashion star Christopher John Rogers on fighting against 'quiet luxury'.txt You_are_under_digital_arrest_Inside_a_scam_looting_millions_from_Indians.txt You_just_fight_with_your_brain_How_F1_driver_Niki_Lauda_survived_a_devastating_Grand_Prix_crash.txt York_City_4-0_Tamworth_-_BBC_Sport.txt Xi_and_Putin_discuss_organ_transplants_and_living_indefinitely.txt 'A spikiness to Thomas Tuchel as England manager' Rory Smith Sport.txt 'Massive' wildfire spike after Wales' long and hot summer.txt
久久狠狠丁香婷婷综合 | 色噜噜狠狠色综合久夜色撩人 | 日本无码一区二区二区 | 55大东北熟女啪啪嗷嗷叫 | 狼人青草久久网尹人 | 中文字幕亚洲综久久2021 | 找国产毛片看 | 欧美国产日本精品一区二区三区 | 亚洲va在线va天堂va手机 | 成年免费观看黄页网站 | 国产h视频在线观看高清 | 日韩一区二三区无 | 精品无码久久久久久久动漫 | aa一级黄色片 | 黄页网站在线观看视频 | 亚洲午夜久久久久久尤物 | 国产精品国产三级国产无毒 | 国产AV一区二区三区最新精品 | 美国一级免费毛片 | 成人夜间视频 | 人妻女警官痴汉电车在线 | 精品福利资源在线导航网址 | 日韩亚洲制服丝袜中文字幕 | 中文无码不卡的岛国片 | 老师好大乳好紧好深 | 美女扒开腿让男人桶爽APP免费看 | a在线v | 曰本无码人妻丰满熟妇5G影院 | javhdxxx| 黄色一级片免费在线观看 | 国产免费网站看v片元遮挡 国产免费区 | 女人被添WWW.A片 | 亚洲国产天堂久久精品网 | 青青草a国产免费观看 | 日本亚洲欧洲免费无码 | 青青草成人色情视频网 | 九一国产在线观看 | WWW九色在线COM | 伦理片在线观看午夜伦理电影韩国 | 午夜寂寞剧场 | 久久影院精品 | 一二三四中文字幕 | 最近韩国日本免费观看免费 | 波多野结衣1区 | 黄网wwwabc300 wac免费 | 六十路の高齢熟女が中文在线播放 | 亚洲精品久久无码AV片软件 | 欧美亚洲制服 | 99ri精品| 少妇内射视频播放舔大片 | 国产综合成人亚洲区 | 色欲AV熟女人妻中文字幕 | 里番本子侵犯肉全彩A片视频一区 | 国产高中生三级视频 | 日本护士xxxxx高清免费 | 五月亭亭六月丁香 | 日本中文字字幕乱码电影直播 | 亚洲色 自拍 偷拍 清纯唯美 | 免费观看高清大片在线播放 | 国产极品JK白丝喷白浆在 | 久久人妻内射无码一区三区 | 波多野结衣免费观看视频 | 中国老妇另类xxxx | 中文字幕在线观看亚洲日韩 | 亚洲日本成人 | 日美韩大片高清免费观看 | 国产真实乱系列 | 久久精品人妻无码一区二区三区V | 在线天堂中文字幕 | 精品欧美一区二区在线观看欧美熟 | 性欧美黑人xxxx | 黄色一级片免费观看 | 无码日本被黑人强伦姧视频 | 国产瑜伽白皙一区二区 | 免费看a毛片| 色婷婷中文字幕在线一区天堂 | 中文字幕网站在线 | 国产成人黄色 | 日韩二三区 | 99自拍视频在线观看 | 色你妹gif动态图片 色哦色哦哦色天天综合 | 肉体裸交丰满丰满少妇在线观看 | 精彩大片在线免费观看 | 在线日产精品一区 | 欧美 日韩 综合 无码 专区 | 最新午夜国内自拍视频 | 国产亲妺妺乱的性视频播放 | 日日摸夜夜添夜夜添亚洲女人 | 中文字幕理伦电影免费 | 久久影院一区 | 国产精品国产三级国产专区不 | 五月婷婷激情视频 | 欧美三级A做爰在线观看 | 日本一区二区三区不卡在线视频 | CHINESE性内射高清国产 | 精品一卡二卡三卡四卡视频区 | ririai99在线视频观看 | 亚洲精品无码成人A片色欲 亚洲精品无码成人A片在 | 黄色一级性生活视频 | 欧洲卡2卡3卡国产乱码 | 精品国产乱码久久久久久口爆 | 国产精品 中文字幕 亚洲 欧美 | 美日韩一区二区三区 | 免费观看一级黄色片 | 国产又爽又粗又猛的视频A片 | 亚州 色毛片免费观看 | 野外被强日本在线观看 | 久青草免费视频 | 久久久无码精品亚洲A片0000 | 欧美日韩在线观看视频 | 精品伊人久久久久网站 | 玖玖玖视频在线观看视频6 玖玖玖免费观看视频 | 好爽插我添我BB | 品色永久免费堂 | 国产又粗又深又猛又爽又黄A片 | 日韩在线欧美在线 | 国产一级第一级毛片 | 毛片.com | 日本韩国香港三级 | 漂亮少妇啪啪高潮大叫小说 | 欧美色综合高清视频在线 | 黄视频网站免费看 | 日本高清视频免费看 | 性夜夜春夜夜爽A片欧美 | 五月天丁香婷婷开心激情五月 | 亚洲精品无码成人A片蜜臀 亚洲精品无码AV久久久久久小说 | 成年黄网站色视频免费观看 | 色综合h | 一区二区人妻精品无码A片 一区二区人妻无码欧美 | 日本高清在线视频无码 | 麻豆文化传媒官方网站入口免费 | 黄色毛片免费网站 | 亚洲黄色免费 | 亚洲精品一卡2卡3卡4卡乱码 | 国产老熟女伦老熟女熟妇图片 | WWW国产精品内射老师 | 国产乱码精品一区二区三区久久 | 双性受高H公车地铁公交 | 波多野结衣a∨免费观看 | 免费在线看黄网站 | 最近最好的中文字幕免费 | 偷偷狠狠的日日高清完整视频 | 日本成人不卡视频 | 久久澡 | 99综合色| 国产日产亚洲系列首页 | 国产熟妇精品一区二区 | 四虎影院免费观看 | 亚洲国产成人91精品 | 欧美性类s0x | 免费人成A片在线观看免费 免费视频精品38 | 亚洲精品中文字幕无码A片蜜桃 | 少妇人妻邻居做爰无码 | 国产精品bbbbyyyy | 亚洲无人区电影国产 | 99热久久国产精品这里有 | 无码免费视频AAAAAA片草莓 | 97视频在线观看视频在线精品 | 波多野结衣二区 | 色情AV亚洲精品一区二区 | 荡翁乱妇小说 | 日韩伦理电影 | 欧美精品第二页 | 波多野结衣免费在线视频 | 日韩a无v码在线播放免费 | 性一交一乱一欲A片 | 又色又爽又黄的在线视频免费看 | 日本12一14eenxxxxtv | 中文字幕人妻丰满熟女 | jizzjizz日本老师 | 出轨的女人国语在线观看 | 亚洲 校园 欧美 国产 另类 | 人妻激情综合久久久久蜜桃 | 国产成人精品免费久久久久 | 福利视频在线播放 | 黑色幽默国语版全集 | 久久视频在线视频观看99 | 精品亚洲一区二区在线播放 | 国产一卡 二卡三卡四卡无卡乱码视频 | 国产91网址 | 亚洲 欧美 综合 高清 在线 | 成人免费又大又爽A片视频 成人女人A级毛片免费软件 | 任我鲁精品视频精品 | 无人影院在线播放视频 | 激情内射日本一区二区三区 | 一起探恋爱综艺在线观看第八期 | 伊人大香线蕉精品在线播放 | 免费网站a| 色情成人影院欧美激情 | 韩国和日本免费不卡在线 | 天堂网亚洲 | 在线www天堂资源网 在线v片 | 国产亚洲午夜精品a一区二区 | 国内免费高清在线观看 | 黄网站在线免费 | 午夜高清在线 | 樱花草无码专区日本 | 欧美视频在线高清在线观看 | 丁香婷婷综合网 | 中文字幕之中文字幕 | 国产一区自拍视频 | 亚洲视频99| 国产黄色免费观看 | 在线看成品视频入口免 | 欧美精品一区二区少妇免费A片 | 正能量免费网站WWW正能量免费 | 亚洲欧美日韩国产制服另类 | 天天搞天天色 | 国产老师开裆丝袜喷水漫画 | 最好看的韩国日本免费 | 免费高清毛片天天看 | 欧美韩日 | 婷婷中文网 | 亚洲无AV在线中文字幕 | 波多野结衣1区 | 国精产品一区一区三区有限公司 | 中文字幕精品1在线 | 夜夜操国产 | 久久国产欧美国日产综合抖音 | 伊人色爱久久综合网 | 午夜精品视频在线无码 | 国产AV亚洲精品久久久久久小说 | 天天干天天天天 | 亚洲h视频在线 | 非洲女人与禽zozo性 | 在线三级网址 | 久久久精品日韩免费观看 | 国产女人成人精品视频 | 毛茸茸成熟亚洲人 | 欧美日韩国产亚洲一区二区三区 | 大胆日本无码一区二区 | 亚洲操操操| 成人久久18免费游戏网站 | 久久黄色免费网站 | 99成人在线| 国产婷婷色综合成人精品 | 国产极品JK白丝喷白浆免费视频 | 精品国产乱码久久久久久人妻 | 亚洲精品第一区二区APP | 少妇高潮潮喷到猛进猛出小说 | 成人黄色毛片 | 波多野结衣xxxxx在线播放 | 亚洲国产精品久久久久久网站 | 欧美综合亚洲图片综合区 | 狠狠躁日日躁夜夜躁A片小说免费 | 亚洲综合日韩中文字幕v在线 | 另类内射国产在线 | 久久九九有精品国产56 | 亚洲中文字幕在线观看 | 午夜免费福利小电影 | 日本A级作爱片金瓶双艳 | 成人A片免费看男人社区 | 国产在线干 | 日韩精品中文字幕在线观看 | 欧美成人高清在线视频大全 | 五月天婷婷免费视频观看 | 国产成人精品三级在线 | 欧美视频区高清视频播放 | 么公一夜我要我八次 | 成人午夜天 | 中文字幕欧美日韩在线不卡 | 国产精品久久久久免费视频 | 一个人在线观看的免费视频 | 国产精品一区二区AV白丝在线 | 日本亚洲精品无码专区国产 | xxx国产精品xxx | 欧美hdjzz| 国产精品亚洲专区在线播放 | 攻把受从小睡到大H | 美幼论坛 | 国产一级高清 | 色吧影院男与女 | 在教室伦流澡到高潮H强圩电影 | 中文字幕精品视频 | 国产a不卡片精品免费观看 国产a不卡 | 亚洲一区二区三区色情爆乳 | 亚洲欧美成人综合久久久 | 久久黄色免费电影 | 97色伦图片97综合影院 | 人人人人看 | 国产免费不卡视频 | 老司机午夜视频在线观看 | 色偷偷网址 | 好深夹的太紧了张开腿A片 好爽毛片一区二区三区色欲 | 四虎免费在线视频 | 99精品噜噜噜成人AV | 日本人妖miran护士 | 日韩精品视频在线 | 激情黄网| 中文有码人妻字幕在线 | 欧美做爰免费大片视频 | 久久精品一区二区免费看 | 一本色道无码道在线 | 成熟人妻AV无码专区A片麻豆 | 亚洲品质自拍网站 | 新婚人妻不戴套国产精品 | 日韩无码在钱中文字幕在钱视频 | 日韩AV片无码一区二区三区不卡 | 一起赏电影网 | 夜夜爽202477妓女免费下载 | 巜疯狂的少妇4做爰BD小说 | 日韩人妻鲁交色情精品视频 | 国产91专区| 免费观看一级欧美在线视频 | 小小视频免费观看高清 | 久久最新免费视频 | www黄网| 色六月婷婷亚洲婷婷六月 | 免费久久一级欧美特大黄 | 欧美色婷婷| 国产人妻久久精品二区三区特 | 黄色一级片免费播放 | 小妖精又紧又湿高潮H视频69 | 蜜桃在线线免费观看视频 | 玖草在线中文在线2024 | 好色成人网| 青草内射中出高潮 | 亚洲资源站 | 波多野结衣 美乳人妻 | 色丁香婷婷 | 欧美又大又粗又爽无码视频 | 欧美日韩精品一区二区三区高清视频 | 99久久综合国产精品免费 | 日韩精品第1页 | 国产免费一级视频 | 久草热线视频 | 国产精品成人四虎免费视频 | 色555| 国产成人AV | 亚洲日本香蕉视频观看视频 | 天天干天天操天天做 | 中文在线免费不卡视频 | 久久99精品这里精品动漫6 | 色悠久久久久综合欧美99 | 精品AV一区二区三区久久 | 亚洲图片欧美文学小说激情 | 欧美又粗又大又爽的A片 | 国内精品久久久久久 | 国产成人性毛片 | 中国女人做爰A片 | 天天躁日日躁成人字幕aⅴ 天天躁日日躁aaaaxxxx | 久久久久久国产精品免费 | 亚洲青春草 | 少妇高潮潮喷到猛进猛出小说 | 黄色网址在线免费观看 | 国产免费人成在线视频视频 | 午夜男人网 | 日韩人妻精品久久日 | A卡一卡二乱码新区免费 | 2022一本久道久久综合狂躁 | 天堂精品视频 | 国产一区二区在线观看免费 | 亚洲国色天香卡2卡3卡4 | 久久久久国产视频 | 亚洲欧美偷拍视频一区 | 高h辣h双处全是肉一对一 | 亚洲国产日韩制服在线观看 | 国产精品剧情原创麻豆国产 | 久久人妻国产高清 | 橘梨纱 star 409 | 色一伦一情一区二区三区 | 又硬又粗进去爽A片免费无码 | 亚洲精品入口一区二区乱麻豆精品 | 99视频免费播放 | 欧美日韩亚洲一区二区三区 | 国产99视频在线观看 | 97在线中文字幕观看视频 | 亚洲精品久久久久久久观小说 | 免费国产在线观看 | 日本日本熟妇中文在线视频 | 无码精品人妻一区二区三A片 | 亚洲国产艾杏在线观看 | 亚洲人成小说网站色 | 在线观看成人A片免费播放 在线观看免费的小电影网站 | 国产精品热久久高潮AV袁孑怡 | 无码国产一区二区三区四区 | xxxww免费看 xxxwww黄色 | 中国黄色一级毛片 | 免费的好黄的漫画 | 日本精品无码久久久久APP | 毛片资源站 | 最近免费的中文字幕一 | 国产性夜夜性夜夜爽91 | 日韩欧美一区二区不卡 | 日本69色视频在线观看 | 国产精品扒开腿做爽爽爽A片唱戏 | 两个女人互添下身爽舒服小说 | 琪琪色原网 | 韩国三日本三级中文字幕 | 99热久久久无码国产精品性麻豆 | 亚洲精品蜜夜内射 | 疯狂少妇2做爰完整版播放 疯狂少妇2做爰中文字幕 | 天堂亚洲网 | GAY高潮痉挛哭叫失禁男小说 | 中文字幕高清免费不卡视频 | 81制片厂传媒果冻传媒一区 | 亚洲一区二区三区四区五区六 | 最好免费观看高清视频直播小说 | 天天射天天干天天操 | av在线观看网站 | 成人国产色情无码永久免费软件 | 91成人午夜精品福利院在线观看 | 国产婷婷午夜精品无码A片 国产婷婷色综合AV蜜臀AV | 天天射天天做 | 中文乱码字幕视频观看网站免费 | 天美在线 | 最近韩国动漫免费观看视频 | 于子涵18分不戴套视频 | 欧美精品导航 | 欧美特黄99久久毛片免费 | 日本漫画之吃奶乳漫画 | 2024国产精品视频一区 | 2022国产成人综合精品 | 97视频观看 | 欧洲综合色 | 亚洲国产精品无码AV久久久 | 国产色情av | 婷婷综合久久中文字幕 | 亚洲成A人无码亚洲成WWW牛牛 | 亚洲AV久久无码精品九九小说 | 亚洲第一黄色网 | 久久在精品线影院精品国产 | 黄色网址免费观看视频 | 一本久道综合五月色婷 | 小泽玛利亚 种子 | 国产人妻人伦精品836700 | 一级毛片在线看在线播放 | 日产一卡二卡乱码免费 | 欧美 日韩 国产 另类 图片区 | 成人国产精品免费视频 | 亚洲 欧美 自拍 制服 另类图片 | 中国黄色网址 | 性欧美video另类hd亚洲人 | 日本午夜网站 | 一区二区自拍 | 四虎综合九九色九九综合色 | 亚洲区视频在线观看 | 野花社区wwW高清视频 | 国产极品JK白丝喷白浆在 | 国产三级日本三级在线播放 | 激情五月婷婷在线 | 成人性生交大片免费看中国A片 | 一本大道一卡二卡三卡四卡在线观 | 黄网wwwabc300 wac免费 | 国产成人精品午夜二三区 | 欧美亚洲桃花综合 | 久久国产高清字幕中文 | 成人毛片18岁女人毛片免费看 | 婷婷综合久久狠狠色成人网 | 99久久精品久久久 | 日韩亚洲制服丝袜中文字幕 | 伦理片秋霞网伦理片 | 欧美视频在线观看欧美大片 | 国产乡下三级全黄三级 | 日本国产精品无码一区免费看 | 天天综合视频网 | 国产成人综合色 | 在线v片| 久久精品国产99久久99久久久 | 夜色贵族亚洲贴图区 | 日本在线免费 | 黄A无码片内射无码视频 | 中文字幕熟女人妻偷伦在线视频 | 日本一线a视频免费观看 | 丝瓜成视频人APP下载网站 | 蜜桃在线线免费观看视频 | 国产拍揄自揄免费观看 | 国产传媒18精品A片在线观看 | 日韩不卡在线观看视频不卡 | 成人99国产精品一级毛片 | 中文字幕无码家庭乱欲 | 色欲AV午夜精品AV | 久久精品国产精品 | 99热在线这里只有精品 | 夜夜躁日日躁狠狠久久 | 最新在线观看精品国产福利片 | 夜夜躁日日躁狠狠久久 | 麻豆成人AV久久无码精品 | 无码免费一区二区三区免费播放 | 宝贝我想尿在里面h | AV亚洲产国偷V产偷V自拍AV | 色婷婷六月 | 舌头添高潮A级毛片 | 国产视频精品免费 | 春色 都市 亚洲 小说区 | 国产精品日本免费视频 | 天天操免费视频 | 91在线视频福利 | 91制片厂果冻传媒公司一卡 | 中文字幕人妻A片免费看 | 亚洲高清国产拍精品动图 | 日本三级免费网站 | 日本一区二区高清免费不卡 | 97在线碰| 蜜柚AV久久久久久久 | 韩国漂亮老师做爰BD | 国产电影在免费播放在线观看 | 黑人啪啪 | 国产精品久久久久无码人妻网站 | 国产成人精品一区二区三区视频 | 激情六月天婷婷 | 人人看人人干 | 2021天天躁狠狠燥 | 日本视频一区二区免费播放 | 美国毛片免费一级 | 国产在线精品二区李沁 | 日日噜噜夜夜狠狠tv视频免费 | 国产日韩精品视频无吗 | 可以免费在线看黄的网站 | 亚洲AV成人一区二区三区啪啪 | 日韩xx00| 99久久精品国产一区二区三区 | 日韩三| 国产成人无精品久久久 | 欧美精品久久久久久久小说 | 日韩成人免费在线视频 | 欧美乱妇乱码大黄AA片 | 爽到喷水(H)小说 | 在线观看免费av网站 | 日韩网站在线观看 | 美美哒免费高清影院在线直播 | 国产成人综合亚洲 | 精品黄色片 | 偷窥wc美女毛茸茸视频 | 精品精品国产自在久久高清 | 视频一区国产第一页 | 色狠狠亚洲爱综合网站 | 成人综合国产乱在线 | 国产顶级AAAAA片 | 欧美日韩精品一区二区三区视频 | 一级毛片在线免费视频 | 无遮无挡在线看 | 日韩成人免费视频 | 窝蝌蚪免费精品视频 | 欧美裸色美妆大全 | 亚洲欧洲日本天天堂在线观看 | 大陆精品福利网址导航在线 | 一区二区三区无码高清视频 | 中文字幕精品在线观看 | 亚洲国产精品成人无码A片软件 | 日本大胆色情高清视频 | 丝袜在线视频 | 天天操狠狠操夜夜操 | 丰满熟妇啪啪区日韩久久 | 欧美人与性囗牲恔配 | 国产极品JK白丝喷白浆在 | 波多野结衣教师中文字幕 | 午夜福利32集云播 | 日本大片高清免费视频 | 咪咪色影院 | 国产精品边做奶水狂喷小说 | 欧美又大粗又黄又爽无码 | 我的公把我弄高潮了视频 | 插吧插吧综合网 | 日本亚洲欧美 | 琪琪SEE色原网色原网站18 | 在线看91 | 免费的很黄很污的全部视频 | 在线欧美中文字幕农村电影 | 请以你的名字呼唤我 电影 请以你的名字呼唤我 | 中国疯狂做爰XXXX高潮 | 涩涩爱社区在线观看 | 小泽玛利亚 种子 | 大家操成人网 | 97人妻人人澡人人爽国产 | 色戒汤唯梁朝伟七分频视频 | 91在线网站| 秋霞伦理手机在线看片 | 久久精品国产三级不卡 | 91导航在线观看 | 成人一区视频 | 女人高潮视频 | 免费无套内谢少妇毛片A片软 | 国产精品资源站 | 精品人妻无码一区二区三区手机版 | 欧美精品videosex性欧美 | 日韩第一视频 | 春日野结衣在线视频 | 婚后1v1啪啪做H高甜 | 成人精品一区二区三区校园激情 | 99久久亚洲精品日本无码 | 美女把尿口扒开让男人桶 | 久久国产精品99国产精 | 日本污网站 | 成年黄网站色视频免费观看 | 一日情| 樱桃视频直播在线观看高清下载 | 91欧美视频 | 国产成人精品久久 | 久久久国产99久久国产久 | 91精品国产91 | 亚洲精品做爰无码片麻豆 | 黑人特黄AA完整性大片 | 久久精品视在线-2 | 凹凸18禁在线视频 | 五月天婷婷免费观看视频在线 | 国产三级精品三级在线观看 | 影音先锋每日最新AV资源网 | 狠狠色丁香婷婷久久综合 | 欧美黑人性xxx猛交 欧美黑人双插 | 周妍希国产福利在线观看 | 国产精品久久vr专区 | 亚洲精品区无码欧美日韩 | 艳妇臀荡乳欲伦岳TXT下载 | 丝瓜app下载网址进入安卓免费 | 强被迫伦姧惨叫小说 | 国产v片在线播放免费观 | 涩悠悠狠狠干 | 五月丁香激色婷五月天 | 亚洲最新永久在线观看 | 亚洲 无码 在线 专区 | 国产三级级在线电影 | 日产乱码卡1卡2卡三免费 | 天天色影视综合网 | 日本免费一区二区三区最新vr | 同性男打屁股spank网站 | 国内精品乱码卡一卡2卡 | 国产亚洲精品久久久久苍井松 | 好吊日在线观看 | 国产在线看不卡一区二区 | 国产亚洲麻豆精品AA片在线观看 | 色中色 地址 | 免费观看电视在线高胜算清 | 最新 国产 精品 精品 视频 | 成人午夜福利视频镇东影视 | 又硬又粗进去好爽A片66 | 色姑娘久久综合网天天 | 影音先锋色情资源站 | 丁香花免费观看高清电影 | 免费观看碰碰碰视频在线观看 | 99精品久久久久久久免费看蜜月 | 国产三级久久 | 青青草成人影视 | 亚洲国产艾杏在线观看 | 亚洲精品久久久久久久蜜臀老牛 | 妞干网在线观看 | 岛国在线无码免费观 | 波多野结衣亚洲一区二区三区 | 日韩视频二区 | 午夜免费无码福利视频麻豆 | 就要爱综合 | 久久国产精品免费视频 | 欧美精品网站 | 日本无码H纯肉黄动漫A红桃 | 一级毛片完整版免费播放一区 | 免费的三级网站 | 黄色在线免费播放 | 午夜人妻无码AV一区二区 | 国产精品成人va | 黄色片网站免费观看 | 中文字幕精品视频在线观看 | 久久性色AV亚洲电影无码 | 欧美国产一区二区三区激情无套 | www.日韩视频 | 少妇性BBB搡BBB爽爽爽小说 | 99久国产| 国产精品人妻熟女a8198v久 | 日韩国产人妻一区二区三区 | 亚洲日本精品va中文字幕 | 一起探恋爱综艺在线观看第七期 | 黄色网址免费观看 | 午夜视频在线网站 | 亚洲日本无码高清一区二区 | 三级在线网站 | 在线视频永久免费网站 | 国产一级毛片大陆 | 求欧美精品网址 | 无码日本被黑人强伦姧视频 | 精品伦理 | 岛国午夜精品视频在线观看 | 国产电影一区二区三曲爱妃记 | 纯肉高H种马艳遇风流多 | 久99热 | z o oz o o人与猪 | 日日噜噜夜夜狠狠tv视频免费 | 日韩精品中文乱码在线观看 | 一级国产黄色片 | 国产亚洲精品久久久久久久 | 日日噜噜夜夜狠狠视频无 | 福利视频网址导航 | 狠狠色狠狠色综合日日92 | 爱爱好爽好大好紧视频 | 最近最新最好的2018中文字幕 | 亚洲不卡高清免v无码屋 | 欧美天天综合 | 内射干少妇亚洲69XXX | 国产成人福利在线视频下载 | 感觉里面痒快舔想做 | 91精品久久久久久久久久 | 加勒比国产 | 亚洲天堂v | 日本在线播放一区 | 欧美激情视频一区二区三区 | 波多野结无码高清中文 | 色网址123大全图片 色网址大全123 亚洲 | 亚洲欧美在线观看一区二区 | 国产熟妇精品高潮一区二区三区 | 中文字幕在线视频不卡 | 国精产品一区一区三区有限公司 | 麻豆精品国产剧情观看 | 人禽无码做爰在线观看视频 | 午夜高清在线 | japanxxxxhd奶水| 尤物麻豆AV在线 | 一个人看的视频WWW在线 | 最爽快的乱肉小说合集500篇 | 日美韩大片高清免费观看 | 人人插人人费 | 99久热re在线精品99 6热视频 | g片在线| 人妻不敢呻吟被中出A片视频 | 日韩精品中文字幕高清在线 | 欧美日韩第二页 | 波多久久夜色精品国产 | 深爱五月综合网 | 免费无码精品黄AV电影 | 久久五月天综合网 | 色偷偷狠狠色综合网 | 亚洲综合激情另类小说区 | 91免费视频播放 | 欧美一区二三区 | 波多野结衣综合 | 国产一区二区亚洲精品 | 香蕉久久夜色精品国产 | 97国产精品人妻无码免费 | 欧美国产激情二区三区-免费A片 | 色翁荡熄76篇 | 美景之屋4在线未删减免费 美景之屋4在线 | 最新91网址 | 国产精品久久久久久久久久一区 | 亚洲乱码无人区卡1卡2卡3 | 国产又黄又爽又色的免费APP | 中国一级全黄的免费观看 | 久久99精品免费视频 | 国产成人亚洲综合 | 亚洲精品中文字幕无码A片蜜桃 | 校园高H校草深一点H | 日韩精品1区 | 日本jizz| A片好大好紧好爽视频免费 A片女女女女女女BBBB | 久久成人国产精品二三区 | 国产三级国产精品国产普男人 | 免费观看色 | 狼人社区 | 在线观看永久免费视频直播 | 欧美日韩亚洲一区二区三区在线观看 | 日本妇人成熟免费中文字幕 | 美丽的水蜜桃2 | 亚洲最稳定资源在线观看 | 影音先锋av色情撸啊撸 | 国产-第1页-草草影院 | 奇米777影视成人四色 | 91亚洲天堂 | 国产精品日本欧美一区二区 | 欧洲免费看片尺码大 | 久久久久国产精品 | 巜隔壁放荡人妻bd高清 | 国产在线综合视频 | 国产乱码精品一区三上 | 久久只有这精品99 | 久久亚洲天堂 | 成品人和精品人的在线观看 | 91精品国产高清久久久久 | 苍井空免费线在线观看无需下载 | 黄色毛片网站 | 国产婷婷精品AV在线 | 抖音C人版奶片7028 | 狠狠狠色丁香婷婷综合久久俺 | 涩涩伊人久久无码欧美 | 国产精品国产三级国产普通 | 一本色道久久综合狠狠躁 | 免费看黄的网站在线看 | 99久久久精品免费观看国产 | 被教官按在寝室狂到腿软视频 | 蝌蚪自拍网站 | 天天爱天天干天天操 | 求一色站 | 无码精品人妻一区二区三区颖A片 | 一级做a爱过程免费视频超级 | 三区综合是哪三区 | 免费看日韩A片无码视频软件 | 免费看黄的网站在线看 | 午夜视频免费看 | 国产又黄又大又色爽的A片小说 | 快播制服丝袜 | 中文有码人妻字幕在线 | 精品黄色片 | 女人自熨全过程(有声) | 狠狠干狠狠操视频 | 成人三级做爰视频在线看 | 日本一区色情无码视频在线观看 | 免费观看一级欧美在线视频 | 免费一级淫片aa | 成年女人免费影院播放 | 国产成人91精品 | 亚洲男人天堂岛 | 精品91一区二区三区 | 一级免费毛片 | 永久免费在线 |