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

gdgldi

13 Oct 2025(atualizado 13/10/2025 às 13h39)

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

Temas

Compartilhe

Prêmio Jovem Cientista ‘ilumina possibilidades’, diz presidente do CNPq'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 roleta cassino profissionalits 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_fast_fashion_could_end_up_as_this_beach_trash.txt

BRB lan?a novas condi??es de crédito imobiliário moda e os enciclopédia abrangente.

GRáFICOS

nos eixos

Zelensky_condemns_ruthless_attack_after_Russia_hits_main_government_building_in_Kyiv.txt

Maria Beltr?o conta os bastidores de grandes coberturas no podcast '25 Anos: as Histórias na GloboNews' enciclopédia e os moda abrangente.

Navegue por temas

Queimadas d?o trégua em 2025, mas mudan?as climáticas e atua??o conjunta de governos ainda s?o desafios Zema evita confronto com família Bolsonaro após Carlos chamar governadores de 'ratos': 'Marido e mulher discordam' Empresário acusado de matar gari a tiros em BH tem pris?o convertida em preventiva Além da hospedagem, COP em Belém sofre com escassez de m?o de obra e já 'importa' profissionais Empresário preso por matar gari em BH relata 'situa??o constrangedora' na pris?o e diz que vai reportar a autoridade: 'Conhe?o o Greco' Altos pre?os na COP em Belém abrem debate sobre rea??o a abusos Policial penal registra ocorrência contra empresário por relato de 'situa??o constrangedora' e 'carteirada' em audiência: 'Calúnia' Estudantes de Engenharia e Física do Cefet criam rob? que luta pela inclus?o das mulheres na tecnologia Após matar gari em BH, empresário fingiu 'surpresa' e acionou 'amigo' coronel da PM: 'Solicitei cautela' Em Movimento #10: O futuro do trabalho
无码乱人伦一区二区亚洲 | 亚洲午夜久久 | 天天射天天干天天色 | 国产成人综合在线观看网站 | 日本免费在线看 | 欧美中文字幕在线播放 | 日本mm | 国产亚洲精品久久久久久无99 | 久久性色AV亚洲电影无码 | 中文字幕精品在线观看 | 日韩一级特黄毛片在线看 | 视频一区二区三区欧美日韩 | 国产又粗又黄又爽的A片动漫软件 | 久久最新免费视频 | 亚洲热影院 | 一区二区久久日韩一片棋牌 | 波多野结衣家庭教师免费观看 | 特级毛片在线大全免费播放 | 99精品免费在线观看 | 亚洲国产一区二区a毛片 | 色网在线免费观看 | 亚洲精品一区二区三区无码A片 | 天天爱综合网 | 中国最大成网人站亚洲 | 亚洲欧美日本国产 | 免费99精品国产自在现线 | 欧美国产激情18 | 国产不锈钢 | 18禁男女无遮挡羞羞视频免 | 国产一区高清视频 | 四虎影视高清视频在线观看 | 玖草在线中文在线2024 | 四虎家庭影院 | 麻豆影视国产TV在线观看 | 精品AV一区二区三区不卡 | sss欧美一区二区三区 | 国产精品久久久久久永久牛牛 | 99视频全部看免费观 | 全免费a级毛片免费看视频免 | 毛片最新网址 | 精品人妻无码一区二区三区手机板 | 狠狠插视频 | 欧美日韩高清不卡免费观看 | 老司机午夜免费福利 | 最近中文国语字幕在线播放视频 | 除却巫山在线 | 日韩一区二区三区四区区区 | 日韩欧美福利视频 | 奇米影视一区 | 国产精品婷婷五月久久久久 | 天天射天天干天天 | 免费啪视频观免费视频 | 午夜AV亚洲一码二中文字幕青青 | 一日本道不卡高清a无码 | 奇米四色影视 | 天天精品| 五月天亚洲 | 国产美女无遮挡裸体毛片A片软件 | 苍井空亚洲精品AA片在线播放 | 亚洲AV色综成人网77777 | avi电影| 香蕉AV亚洲精品一区二区 | 99热这里只有精品免费 | 国产色欲色欲色欲WWW | 亚洲18在线天美 | 免费污的网站 | 四房色播电影 | 在线观看免费视频污网站 | 2022国产成人综合精品 | 黑人狂躁日本妞无码A片视频 | 91精品国产91久久综合 | 免费黄色网址在线观看 | 四虎影在线 永久免费 | 亚洲中文字幕国产综合 | 色视频免费观看 | 中文字幕动漫精品专区 | 亚洲日本在线免费观看 | 成人天堂婷婷青青视频在线观看 | 亚洲色贴图| 黄色三级视屏 | 日韩精品系列产品 | AV午夜午夜快憣免费观看 | 国产在线亚洲精品观看不卡 | 美国一级毛片片aa久久综合 | 三级色网 | 久草在在线免在线观看视频 | 99久久免费午夜国产精品 | 97国产揄拍国产精品人妻 | 精品国产96亚洲一区二区三区 | 免费成人论坛 | 忘忧草爱网 | 性色无码AV久久蜜臀 | 免费污的网站 | 国产高清免费视频免费观看 | 亚洲成_人网站图片 | 久久精品亚洲综合一品 | 拍拍拍无档又黄又爽视频 | 日韩在线不卡视频 | 偷偷撸在线影院 | 国产又爽又刺激的视频 | 91快射| 狠狠狠色丁香婷婷综合久久俺 | 高清一级毛片一本到免费观看 | A片好大好紧好爽视频 | 这里是九九伊人 | 性一交一乱一交A片久久 | 烽火三月 | 神兵小将第一季免费观看 | 欧美日韩影院 | 奇米影色777四色在线首页 | 久久久午夜精品 | 色影音先锋av资源网 | 97精品国产高清在线看入口 | 亚洲图片偷拍图自拍97 | 秋香蕉丝瓜榴莲污APP下载 | 一区二区三区四区在线免费观看 | 在线观看欧美一区 | 精品午夜一区二区三区在线观看 | 粉嫩被粗大进进出出视频 | 波多野结衣综合 | 婷婷人人爽人人爽人人A片 婷婷色情 | 久久久午夜精品 | 中文字乱码电影在线播放 | 公共尿bl肉被器总受 | 99热在线精品免费播放6 | 久久www免费人成高清 | 亚洲男人王 | 亚洲精品亚洲人成人网裸体艺术 | 国产精品福利影院 | 好大好硬好爽18禁视频免费 | 99RE久久爱五月天婷婷 | 亚洲综合精品香蕉久久网97 | 国产成人十八黄网片 | 色中色主页 | 日韩精品视频在线免费观看 | 人偶新娘 | 亚洲欧美一区二区三区图片 | 国产精品专区免费观看 | 精品欧美一区二区在线观看 | 欧美大肥婆大肥BBBBB | 欧美videos人牛交 | 久久影院一区二区三区 | 91精品国产综合成人 | 性色AV一区二区三区咪爱四虎 | 日韩精品毛片 | 亚洲精品偷拍的自拍的 | 日本久久久WWW成人免费毛片丨 | 午夜成人影视 | 色网在线播放 | 青青偷拍免费国产2024 | 黄色成年网站 | 国精产品一二二区视频 | 日本中文在线 | 婷婷五月俺去也人妻 | 亚洲日本香蕉视频观看视频 | 婷婷久久久五月综合色 | 午夜伦理一yy4480影院 | 囯产精品一区二区三区线 | 一区二区网站 | 新午夜影院 | 免费看成人频视在线视频 | 精品国产三级在线观看 | 久久国产一片免费观看 | 都市激综合小说区另类区 | 国产免费区 | 精品免费久久 | 91热久久免费频精品动漫99 | 人人看电影网 | 日韩精品免费在线观看 | 人妻AV久久一区波多野结衣 | 亚洲AV综合AV国产AV百度云 | 91久久亚洲最新一本 | 国色精品卡一卡2卡3卡4卡免费 | 韩三级日本三级日本 | WWW夜片内射视频在观看视频 | 久久无码AV亚洲精品色午夜 | 欧美视频日韩专区午夜 | 在线欧美日韩精品一区二区 | 免费网站高清在线观看视频 | 久久精品视在线-2 | 毛片免费全部免费观看 | 97色伦图片97综合影院久久 | 两个人免费视频在线观看直播 | 三级黄色免费观看 | 最新在线中文字幕 | 最近最新中文字幕在线手机版 | 日本伊人色综合网 | 精品国产高清毛片A片看 | 酷狗2011正式版下载 | 又黄又刺激好看的小说 | 在线观看网站黄色 | 国产免费A片在线观看人 | 国产成人亚洲精品2020 | 欧美午夜春性猛交xxxx | 午夜成年奭片免费观看 | 亚洲 欧美 国产 综合网 | 久久99精品久久久久久噜噜丰满 | 国产欧美日韩精品二区 | 日韩色区 | 性xxxxbbbb免费播放视频 | 中国欧美日韩一区二区三区 | 玖玖色资源 | 丁香婷婷久久大综合 | 久久视频精品38线视频在线观看 | 日本a级三级三级三级久久 日本a级片视频 | 伊人久久中文字幕 | 午夜福利电影网站鲁片大全 | 亚洲AV无码区在线观看东京热 | 妓出阁 | 亚洲无人区电影国产 | 欧美黄片 | 国产精品视频一区二区猎奇 | 果冻传媒入口 | 香蕉在线综合2019版 | 一区二区三区国模大胆 | 亚洲国产精品久久又爽黄A片 | 久热re在线视频精品免费 | 久热久| 无套内谢少妇毛片A片免 | 精品爽爽久久久久久蜜臀 | 日本无码免费久久久精品 | 年轻漂亮的妺妺中文字幕版 | 玖玖玖视频在线观看视频6 玖玖玖免费观看视频 | 校园H所有人随时随地做 | 中国国语对白高潮A片 | 无码日本电影一区二区网站 | 欧美三页| 日日摸天天碰中文字幕你懂的 | 亚洲精品AV无码精品 | 国产在线是视频有精品 | 女人喷射视频在线播放你了 | 国产精品久久人妻无码网站一区L | 家庭教师 波多野结衣 | 99精品免视看 | 亚洲黄色官网 | 成人色网站 | 亚洲熟女片嫩草影院 | 午夜福利视频合集1000 | 国产乱码精品一区二区三区四川人 | 国产三级在线看 | www.色网| 人妻熟妇乱又伦精品视频中文字幕 | 国产亚洲精品AV麻豆狂野 | www日本免费 | 亚洲午夜无码毛片AV久久京东热 | 日韩精品一区二区三区国语自制 | 欧美性视频一区二区三区 | 99久久久无码国产AAA精品 | 色妺妺视频网 | 九九精品免视频国产成人 | 99视频这里只有精品国产 | 无码精品一区二区三区视频色欲网 | 日日摸人人看97人人澡 | 欧美野外疯狂做受XXXX高潮 | 中文字字幕在线中文乱码2019 | 成人福利免费在线观看 | 黑帮少爷爱上我第一季在线观看 | 亚洲一区精品伊人久久 | 久久伊人五月天 | 精品久久久久国产 | 国产 欧美 亚洲 中文字幕 | 日本MV高清在线成人高清 | 天天综合网天天综合色不卡 | 日本视频免费高清一本18 | 91日本在线视频 | 欧美激情一区二区A片成人 欧美激情内射喷水高潮 | 18女下面流水不遮图免费图 | 欧美曰逼| 被特种兵啪到哭BL | 国产成人黄色在线观看 | 成人午夜视频在线观看 | 天堂网www天堂在线网 | 国产精品永久免费视频 | 色阁阁日韩欧美在线 | 免费高清视频免费观看 | 亚洲三级小视频 | 麻豆传煤2021精品 | 四虎在线视频免费观看视频 | 999国产高清在线精品 | 蝴蝶谷成人论坛 | 秋霞在线观看视频一区二区三区 | 艳妇臀荡乳欲伦交换H漫 | 巨肉超污巨黄H文小短文 | 成人丝袜射 | 国产一区高清视频 | 麻豆精品国产精华精华液好用吗 | 日本久久久久久久做爰片日本 | 黄色网址亚洲 | 国产精品久久久久久夜夜夜夜 | 国产AV精品一区二区三区小说 | 国产又黄又爽又猛免费app | 你懂得在线视频 | 成人午夜又粗又硬又长 | 奇米777视频国产 | 艳妇荡岳丰满交换做爰 | 99视频免费 | 亚洲成AV人片一区二区三区 | 精品三级内地国产在线观看 | 97人妻熟女成人免费视频 | 亚洲免费在线播放 | 国产福利影院在线观看 | 国产日产欧产美韩系列影片 | 久久久久久网址 | 老牛无码人妻精品1国产 | 3及网站 | 娇妻在舞厅被别人进入 | 撸撸在线| 奇米四色奇米四色444影视盒 | 女人潮抽搐动态图gif后 | 国产香蕉在线观看 | 8x国产精品视频 | 色综合久久98天天综合 | 亚洲中文字幕国产综合 | 在线国产三级 | 国产精品久久福利网站app | 亚洲精品久久久久无码AV | 国产美女裸露无遮挡双奶A片游戏 | 国精产品一区二区三区 | 亚洲午夜AV久久久精品影院色戒 | 精品人妻无码一区二区三区在线 | 新婚人妻不戴套国产精品 | 国产在线看片免费视频 | 黄色免费在线观看网站 | 四虎影院免费观看 | 精品视频 九九九 | 久久久久久久久久久久久久久久久久久久 | 制服丝袜 快播 | 一级黄色网 | 国产亚洲玖玖玖在线观看 | 8x海外永久免费视频看看 | 插插插色欲综合网 | 久久精品18 | 奶大灬好大灬好硬灬好爽在线播放 | 99国产精品国产精品 | 欧美成人大色情大片破碎的拥抱 | 厨房少妇人妻好深太紧了 | 韩国色网| 国产伦子系列沙发午睡 | 成年人免费黄色 | 女同网站在线观看免费 | 久久精选视频 | 国产精品一区二区三区免费 | www.色se.com| 日韩经典欧美精品一区 | 久久久九九精品国产毛片A片 | 99国产揄拍国产精品人妻蜜 | 麻豆影视国产TV在线观看 | 深夜爽爽动态图无遮无挡 | 少妇伦子伦精品无码 | 中文字幕一区波多野结衣 | 久久久精品免费 | 四虎影视免费看 | 视频一区在线免费观看 | 黄色一级网站 | 欧美男男videos在线 | 国产第一色| 我要看WWW免费看插插视频 | 国产欧美熟妇另类久久久 | 高清电影在线播放 | 久久网免费 | 最近免费中文字幕大全免费版视频 | 久久久久久久国产精品毛片 | 黑人性受xxxx黑人xyx性爽 | 日韩精品无码一区AAA片 | 久久精品免费 | 激情综合久久 | 女人露p毛的图片 | 国产成人无码免费看片色哟哟 | 在线成人免费观看国产精品 | 女神花样打耳光vk | 2017能在线观看的网站 | 99热在线精品播放 | 国产成人av在线免播放观看 | 亚洲欧美在线观看一区二区 | 日本激情网 | 成人网站色情WWW在线 | 国精产品深夜免费麦片 | 中文字幕一级毛片视频 | 欧美国产亚洲一区二区三区 | 中文字幕日本在线观看 | 国产日韩欧美成人 | 久久精品国产波多野结衣 | 精品成人无码A片免费软件 精品AV综合一区二区三区 | 一级黄色免费观看 | 国产AA久久大片日本无码 | 激情五月婷婷综合 | 日韩欧美一及在线播放 | 国产三级精品三级国产 | 粗大的内捧猛烈进出在线视频 | 少妇大叫太大太爽受不了在线观看 | 九九免费精品视频 | 日韩不卡一卡二卡3卡四卡2021免费 | 高清无码国内自拍视频 | 最新黄网| 欧亚成人A片一区二区 | 免费无码毛片一区二区三区A片 | 神马电影dy888午夜我不卡 | 精品99卡1卡2卡3乱码 | 亚洲激情中文字幕 | 8090成年在线看片 | 亚洲特黄大黄一级毛片 | 亚洲一区在线观看视频 | 久久夜夜肉肉热热日日 | 免费看成人羞羞视频网站在线看 | 久久久久久久一线毛片 | 浪妇叫床叫的很浪的小说 | 视频一区二区欧美日韩在线 | 精品高潮呻吟99AV无码 | 欧美大穴| 久久五月色婷婷丁香六月综优物 | 天天干天天操天天干 | 黑人vs亚洲人在线播放 | 国产成人精品福利网站app | 日韩欧美一区二区不卡 | 日韩美女免费线视频 | 国色天香网站 | 韩国三级精品 | 国产人妻人伦精品免费看果冻传媒 | 亚洲 欧美 丝袜 制服 在线 | 欧美成人精品免费播放 | 99re5久久在热线播放 | 亚洲成色A片202477在线小说 | 欧美一区二区三区成人A片 欧美一性一交一伦一A片视频 | 98国产精品人妻无码免费 | 强硬进入岳A片69色欲VA | 人妻少妇被粗大爽.9797PW | 久久人妻无码毛片A片麻豆 久久人人玩人妻潮喷内射人人 | A片试看120分钟做受视频在线 | 扶着岳从后面挺进 | 窝窝色资源站 | 日韩在线高清 | 最近高清免费观看日本 | 另类色视频 | 成人福利免费观看体验区 | 成人免费永久在线观看视频 | 欧美黑人性xxx猛交 欧美黑人双插 | 天堂资源在线最新版 | 欧美高清一级 | 视频在线观看一区二区三区 | 国产男人午夜视频在线观看 | 免费毛片a在线观看67194 | 日韩一区二区在线观看视频 | caoporn地址 | 最近高清免费观看日本 | 久久美女精品国产精品亚洲 | 日韩国产人妻一区二区三区 | 美景之屋4免费观看高清 | 色狠狠一区二区 | 欧区一欧区二欧区三免费 | 亚洲精品资源在线 | 欧美产品与亚洲日韩视频 | 欧美激情一区二区三区四区 | 中文字幕之中文字幕 | 黑人性受xxxx黑人xyx性爽 | 亚洲乳大丰满中文字幕 | 久久爱色欲AV | 91福利国产在线观一区二区 | 日本五月天婷久久网站 | 成人h视频 | 亚洲国产人久久久成人精品网站 | 色偷偷免费视频 | 亚洲AV成人影视在线观看 | 国产情侣久久精品 | 深夜福利欧美 | 3D肉蒲团之极乐宝鉴8K影院 | 日韩免费高清大片在线 | 97se亚洲国产综合自在线 | 亚洲激情一区 | 美国黄色一级毛片 | 99久久国产露脸国语对白 | 又白又紧大屁贵妇的肥水 | 欧美高清视频一区 | 久久精品国产99久久99久久久 | 女人18毛毛片兔费码A片 | 亚洲精品一线二线三线无人区 | 亚洲老熟女AV一区二区在线播放 | 亚洲高清国产拍精品动图 | 2021免费一二三四区 | 国产午夜久久影院 | 激情区小说区偷拍区图片区 | 日本免费黄网站 | 伦理79电影网在线观看 | 日韩天天干 | 一级一级特黄女人精品毛片视频 | 九九九九在线精品免费视频 | 插到嗷嗷嗷叫群交 | 花房姑娘HD免费高清版视频 | 亚洲乱妇老熟女爽到高潮的片 | 好男人社区神马WWW在线观看 | GAY空少被体育生开菊网站 | 日韩午夜在线 | 午夜视频91 | 久操视频在线 | 中文字幕大香视频蕉免费 | 国产人妻久久久精品麻豆 | 亚洲精品久久久无码一区二区 | 黄页网站视频 | 97国产精品人妻无码免费 | 翁公的巨物挺进了我密 | 性欧美1819xx | 中文字幕在线视频精品 | 国产黄色a | 亚洲国产艾杏在线观看 | 人妻寂寞按摩中文字幕 | 国产高清自偷自在线观看 | 欧美午夜乱理片无码视频 | 日本熟妇乱人伦A片一区 | 国产成人综合95精品视频免费 | 影音先锋av网站大全 | 五月天婷婷爱 | 久久久无码人妻精品无码 | 日本高清WWW无色夜在线视频 | 六月婷婷综合 | 无码免费人妻A片AAA毛片 | 伊人久久亚洲精品一区 | 攻把受做哭边走边肉楼梯PLAY | 国产又黄又刺激的免费A片小说 | 美景之屋4免费观看高清 | 亚洲日本久久久午夜精品 | 最新亚洲一区二区三区四区 | 一本到无线中字 | 国产亚洲精品福利 | 国产精品久久人妻无码网站蜜臀 | 国产v在线| 2020年最新国产精品正在播放 | 国产黄色一级毛片 | 岛国精品无码少妇在线 | 人妻久久久精品99系列A片毛 | 成人YY视频在线观看 | 最近最新中文字幕大全高清版 | 色欲精品国产AV久久久 | 国精产品三区四区有限公司 | 久久久免费的精品 | 日本免费一区二区三区最新vr | WWW九色在线COM | 黄视频网站在线看 | 在线乱码一卡二卡麻豆 | 在线亚洲天堂 | 91久久精品一区二区三区 | 婷婷综合久久中文字幕 | 天天天天天天操 | 日日撸.com | 少妇又紧又爽又丰满A片小说 | 亚洲精品无码高潮喷水A片在线 | 91成人午夜精品福利院在线观看 | 韩国理论疯狂少妇2做爰 | 青青视频观看免费99 | 欧美日韩一区不卡在线观看 | 免费涩涩屋草莓榴莲秋葵绿巨人 | 99精品国自产在线偷拍无码软件 | 国外欧美一区另类中文字幕 | 亚洲经典一曲二曲三曲 | 日本午夜福利无码高清 | 国产在线播放精品视频 | 日本高级按摩人妻无码 | 天天曰天天干天天操 | 91精品孕妇系列 | 最美白嫩的极品美女ASSPICS | 日韩一区精品视频一区二区 | 久久只有这里有精品 | 国产精品日本不卡一区二区 | 欧美大片日韩精品四虎影视 | 曰韩少妇内射免费播放 | 高清不卡伦理电影在线观看 | 色就色 综合偷拍区欧美 | www毛片com| 日本一区二三区好的精华液 | 韩国理伦电影 | 日本韩国欧美在线观看 | 色色男_免费 | 日本免费一二三区中文 | 欧美日韩视频一区二区在线观看 | 美美哒韩国直播在线视频 | 国产精品艺校美女校花在线 | 不卡三级 | 人人在线 | 青青热久免费精品视频精品 | 天堂资源中文最新版在线一区 | MAC水蜜桃色314麻豆 | 丰满少妇乱A片无码 | 国产精品毛片无码 | 色网免费 | 日日夜夜综合 | 男女生性毛片免费观看 | 亚洲欧美日韩精品久久亚洲区 | 国产一区二区亚洲精品 | 亚洲永久网站 | 无套内谢少妇毛片A片软件 无套内谢少妇毛片A片小说色噜噜 | 男人天堂2018亚洲男人天堂 | 国产91区 | 夜夜躁狠狠躁日日躁孕妇 | 欧美va天堂在线电影 | 一区二区三区在线看 | 久久久噜噜噜久久 | 扒开女人下面使劲桶动态图 | 老湿机免费体验 | 最近中文国语字幕在线播放 | 熟女泄火一区二区三区在线 | 国产成人综合久久精品下载 | 三级a午夜电影 | 国产免费一级精品视频 | 久久久久久极精品久久久 | 在教室伦流澡到高潮H女攻视频 | 免费观看全黄做爰 | 一区二区三区内射美女毛片 | 欧美男生射精高潮视频网站 | 蜜桃视频极品免费观看 | 妞干视频 | 99视频在线精品免费 | 国产午夜精品AV一区二区麻豆 | 日韩精品一区二区三区在线观看l | 91精品久久久久久久久久小网站 | 无遮挡无掩盖的网站 | 久久久网久久久久合久久久久 | 狠狠色丁香婷婷综合久久片 | 农村真实夫妇屋内自拍视频 | 成人18免费网站在线观看 | 三级中文字幕 | 超清波多野结衣精品一区 | 精品无人乱码一区二区三区 | 大片成人版 | 亚洲欧洲久久久精品 | 在线中文天堂最新版官网 | 国产经典哔哩哔哩 | 久久久久久久综合日本亚洲 | 欧美日韩另类在线 | 2020国自产拍精品网站不卡 | 久久天天躁夜夜躁2019 | 国产区福利 | 综合在线 日韩欧美 中文字幕 | 亚洲AV久久无码精品国产网站 | ts人妖在线观看 | 欧美乱妇乱码大黄AA片 | 窝窝午夜在线观看免费观看 | 天天爽夜夜春 | 亚洲欭美日韩颜射在线二 | 无码国产69精品久久久久 | 久久欧美人人做人人爱 | 九色综合伊人久久富二代 | 奇米777四色精品综合影院 | 欧美日日干 | 国产精品久久综合桃花网 | 一道本视频一二三区 | 成人在线免费看 | 国产黄色片网站 | 亚洲精品久久久久一区二区 | 国产成人精品日本亚洲网址 | 韩国理伦片一区二区三区在线播放 | 一区二区三区四区免费视频 | 99久久亚洲精品日本无码 | 在线观看播放理论片 | 女人被添全过程A片免费视频 | 一区二区三区线日本 | 玩弄人妻少妇500系列网址 | 五月婷婷久久草丁香 | 欧美三级免费网站 | 久热精品视频在线观看 | 挺进去岳就不挣扎了的视频 | 国产三级毛片视频 | 天堂网2016| 天堂网www中文在线 天堂网www在线资源中文 | 黄网站观看 | 少妇内射高潮福利炮 | 欧美三级在线播放线观看 | 香港一级淫片高清视频 | 三级色网 | 波多野结衣mxgs1124在线 | 国产亚洲国产bv网站在线 | 日本大胆欧美人术艺术动态 | 工口里番h彩色无遮挡全彩 工口里番全彩全彩无遮挡 工口里番全彩无肉码3D啪啪 | 国产极品视频 | 最近中文字幕免费大全 | 二区三区在线 | 黄视频网站大全 | 激情六月| 国产人妻久久精品二区三区特 | 黄页网站视频在线观看 | 波多野结衣视频一区二区 | 五月网址| 亚洲一区免费视频 | 日韩欧美中文字幕公布 | 日本无码特黄午夜视频在线观看 | 欧美干b视频 | 成人毛片免费 | 中国字字幕在线播放2024 | 久久久久久久久一级毛片 | 婷婷在线视频 | 国产乱码精品一区二区三区四川 | 九九热视频精品在线观看 | 亚洲色无码A片一区二区红樱 | 黄色片网站视频 | 国产精品视频自拍 | 免费在线观看黄网站 | 三级全黄APP播放 | 欧美乱码卡一卡二卡四卡免费 | 伦理片飘花手机在线 | 六月婷婷激情综合 | 国产亚洲精品91 | 婷婷综合久久中文字幕 | 国产欧美熟妇另类久久久 | a网站在线观看 | 羞羞答答APP安装以后在手机哪里 | 色汉综合 | 让人爽到湿的小黄书 | 国产在线精品视频免费观看 | 成人国产一区二区精品小说 | 公交车被多男摁住灌浓精芽子 | 国产 亚洲 中文字幕 在线 | 美女扒开尿口让男人桶进 | 成人在线观看免费视频 | www.日本在线视频 | 精品综合久久久久97 | 国产精品久久国产精品99 gif | 五月婷六月丁香 | 国产单亲乱子伦视频 | 忘忧草在线影院WWW日本社区 | 中文字幕永久免费视频 | 欧美一级精品高清在线观看 | 再深点灬舒服灬太大了动态图 | 亚洲精品v欧美精品动漫精品 | av蜜桃| 黄污视频网站 | 日本免费网站 | 国产精品呻吟久久人妻无吗 | 国产一级第一级毛片 | 国产女同视频 | 国产精品自在在线午夜蜜芽tv在线 | 波多野结衣a v免费观看 | 亚洲精品久久AV无码蜜桃 | 欧美一级美片在线观看免费 | 青草国内精品视频在线观看 | 在线免费观看黄色网址 | 国产v亚洲v天堂a无 国产v视频 | 免费在线看污网站 | 国内自拍99P| 中国农村自拍hdxxxx性自拍 | 免费看成人AA片无码视频羞羞网 | 周妍希国产福利在线观看 | 小说区图片区激情区视频区 | 色狠狠色综合吹潮 | 久久只这里是精品66 | 手机在线黄色 | 五月丁香 | 日本三级电影在线看 | 日本三级全大电影免费 | 娇妻系列交换27部多P小 | 亚洲激情中文 | 日韩精品无码视频一区二区蜜桃 | 国产精品久久永久免费 | 国产成人午夜福在线观看 | 日韩内射美女人妻一区二区三区 | 波多野结衣在线免费播放 | 西西人体大尺度nte 西西人体大胆牲交PP6777 | 午夜播放器在线观看 | 久久国产精品福利影集 | 一本色道婷婷久久欧美 | 国产片免费看 | 午夜影院一区 | 亚洲精品tv久久久久久久久久 | 亚洲一区二区三区四区五区黄 | 中年国产丰满熟女乱子正在播放 | 99视频国产在线 | 国产午夜免费视频片夜色 | 区久久AAA片69亚洲 | 成人影院视频 | 伊人久久大香线蕉无码麻豆 | 日韩亚洲制服丝袜中文字幕 | 日日夜夜免费精品 | xxxww日本| 最新国产精品精品视频 | 欧美性生恔XXXXXDDDD | 日韩色情无码一本二本三本 | 日本里番大全无码工口 | 日本免费一区二区在线观看 | 泷泽萝拉qvod快播 | 国产AV无码免费一区二区 | 日本毛片高清免费视频 | 性夜影院午夜看片 | 免费国产又色又爽又黄的网站 | 无尺码精品日本欧美 | 请以你的名字呼唤我 | 免费无码精品黄AV电影 | 欧美经典人人爽人人爽人人片 | 国产激情久久久久影院小草 | 欧美激情欧美狂野欧美精品免费 | 亚洲精品无码一区二区卧室 | 八先锋资源 8xfzy.com | 特级毛片内射WWW无码 | 亚洲综合狠狠 | 欧美精品video | 美丽的小蜜桃2 | 黄色一级片在线观看 | 97久久曰曰久久久 | 国色天香日本人妻无码网站 | 韩国女人高潮嗷嗷叫视频 | 91免费在线观看 | 彩色很h中文漫画集 | 欧美午夜精品一区二区蜜桃 | 国产情侣一区二区 |