午夜福利总站-午夜国产-午夜国产爆乳-午夜国产传媒-午夜国产大片-午夜国产福利片-午夜国产福利在线-午夜国产精品福利-午夜国产精品视频-午夜国产理伦

explorar

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

qpbhlh

12 Oct 2025(atualizado 12/10/2025 às 06h35)

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

Temas

Compartilhe

Banda Eva comemora 40 carnavais com musical no palco do Fantástico'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 dice de lwite em poits 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

é #FAKE vídeo de Zezé Di Camargo declarando apoio a Lula para elei??o de 2026; conteúdo foi criado com inteligência artificial enciclopédia e os abrangente foco.

GRáFICOS

nos eixos

'It's like being in a farm from outer space'.txt

é #FAKE imagem de Marilyn Monroe com camisa da sele??o brasileira e batendo bola com jogadores; imagem foi feita com IA enciclopédia e os conhecimento moda.

Navegue por temas

Isso Está Acontecendo: fiéis trocam visitas por evangeliza??o via celular na pandemia; ou?a Gols do Fantástico: líder Atlético-MG empata com o Bragantino Saiba qual é a melhor forma de conversar com crian?as pequenas Jornalistas relembram machismo e assédio nos bastidores da política: 'Hoje em dia devolvo constrangimento', diz Natuza Nery Gols do Fantástico: líder Atlético-MG empata com o Bragantino Gols do Fantástico: veja como foi a última rodada do Brasileir?o ‘Prazer, Renata’: O amor está ligado ao sofrimento? — com Simone Demolinari é #FAKE que mistura de alecrim, folhas de goiaba, cravo, canela e óleo de rícino combate calvície e faz cabelo crescer N?o monogamia coloca homens e mulheres dentro do mesmo acordo de forma clara, analisa diretora de 'A Porta ao Lado' ‘Prazer, Renata’: Quem é você na fila do feminismo? — com Branca Vianna, Drik Barbosa e Bela Reis
99视频全部看免费观 | 狠狠操天天 | 欧美成人精品区综合A片 | 国产情侣久久 | 好看的电影你懂的 | 在线看片免费观看 | 老司机午夜精品 | 无码专区aaaaaa免费视频 | 91久久香蕉国产线看观看软件 | 分享一个无毒不卡免费国产 | 91久久国产口精品久久久久 | 骚妇的水真多让我插她 | 亚洲天堂2017手机在线 | 麻豆精品2021最新 | 一级毛片一级毛片免费毛片 | 91精选视频 | 最近高清中文在线观看国语字幕7 | 亚洲在线国产日韩欧美 | 啪啪啪视频高清 | 亚洲九九九 | 青青青国产在线手机免费观看 | 禁止的爱善良的小峓子3线国字 | 色综合小说久久综合图片 | 中川美香 | 色播成人网 | 四虎影视永久无码精品 | 99ri在线视频网 | 午夜一区二区免费视频 | 国产v亚洲v天堂a无 国产v视频 | 午夜伦yy44880影院 | 91黄色片| 国产一区二区在线观看视频 | 99re视频在线 | 亚洲图片偷拍图自拍97 | 久久婷婷激情综合中文字幕 | re99| 四虎8848| 日韩一区二区三区中文字幕 | 欧美精品狠狠色丁香婷婷 | 久久国内免费视频 | 最近更新中文字幕2018全集免费 | 窝窝午夜看片免费视频 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 无套内谢少妇毛片AAAA片免费 | 四库影院永久国产精品 | 日韩黄色网| 色在线免费观看 | 欧美五月 | 高清无码日本一区二区 | 偷自视频区视频首页 | 成人久久18免费游戏网站 | 把娇妻借给朋友泄欲4 | 国产熟妇的荡欲午夜视频 | 国产成人性毛片 | 四虎永久免费地址入口 | 国产电影一曲二曲三曲图片 | 男人的天堂在成a | 婷婷涩五月| 国精产品一二二线网站 | 欧美又粗又硬又大久久久 | 国产骚b | 99亚洲男女激情在线观看 | 中文字幕2021无线乱码 | 日本在线不卡免费视频 | 野花社区WWW中文高清版 | 久久天天躁狠狠躁夜夜躁2014 | 天使影院 | 免费在线成人电影 | 国产精品久久久久人妻无码 | 国产99久久久国产精品成人 | 久久99精品久久久久久三级 | 国产乱子伦视频大全 | 亚洲精品一区二区三区四区手机版 | 国产精品久久久久久久免费A片 | 国产无卡一级毛片aaa | 18禁止观看免费私人影院 | 午色影院 | 无码缴情做A爱片毛片A片 | 蜜臀亚洲AV永久无码精品老司机 | 日韩欧美不卡在线 | 日韩欧美国产偷亚洲清高 | 国产亚洲欧美在线观看三区 | 原来神马电影琪琪网最新电视剧 | 女人爽得直叫免费视频 | 人妻献身系列第54部 | 国产免费大片 | 成人色图库 | 亚洲欧洲日产国产 最新 | 大地资源网中文在线观看 | 亚洲精品久久久无码大桥未久 | 欧美男生射精高潮视频网站 | 91蝌蚪网 | 亚洲精品18p | 越南一级毛片免费 | 日本精品一区二区在线播放 | 春宵福利网站在线观看 | 亚瑟在线视频 | 夭天色综合 | 最新国产麻豆精品 | 影音先锋资源站男人网 | 狠狠色噜噜狠狠狠狠奇米777 | 纯肉小黄文高H | 日本香港三级亚洲三级 | 亚洲高清免费观看 | 亚洲AV久久无码精品夜夜挺 | 里番外番口工全彩无遮挡 | 色se01短视频永久免费 | 久久久无码精品一区二区三区 | 美日韩一区二区 | 精品人妻无码一区二区三区GIF | 99re在线播放视频 | 九九热线有精品视频86 | 四虎影视高清视频在线观看 | 2018高清国产一道国产 | 超碰老师97zyz资源总站 | 强壮公次次弄得我好爽A片 强壮公弄得我次次A片 | 日韩亚洲欧美中文高清在线 | 青青草成人色情视频网 | 五月天福利视频 | 欧美性爱 成人 | 男女做爰猛烈吃奶摸A片 | jizzzz中国| 高清无码中文字幕影片 | 欧美日韩精品一区二区三区视频 | 色玖玖 | 熟女老妇久久视频 | 久久人妻国产精品31 | 日本不卡视频免费的 | 深夜国产成人福利在线观看女同 | 中文版在线乱码在线看 | 欧美色综合高清视频在线 | 污污又黄又爽免费的网站 | 影音先锋av资源看波波 | 精品午夜寂寞影院在线观看 | 亚洲成在人线久久综合 | 国产亚洲精品久久AV | 日本成人免费在线观看 | 又硬又粗又大一区二区三区视频 | 果冻传媒网址 | 桃子视频免费观看播放 | BL文库好大粗黑强强肉NP | 国精产品一区一区三区MBA下载 | 麻豆免费看 | 欧美性爱 先锋影音 | 新四房播播 | 性欧美高清直播 | 中文字幕 无码亚洲 | 久久亚洲欧美 | 青青草国产免费国产是公开 | 噜啊噜色在线观看视频 | 色妞ww精品视频7777 | 国产精品成久久久久三级 | 青青草视频成年视频在緌观看 | 荡公乱妇翠翠 | 国产国拍亚洲精品av麻豆 | 欧美日韩高清一区二区三区 | www.av视频在线| 插影院 | 久久99国产一区二区三区 | 久久综合色老色 | 国自产拍偷拍福利精品啪啪 | 福利一区三区 | 久久精品免费i 国产 | 国产日产欧产美韩系列影片 | 99r热| 大炕上的肉体乱第2部分 | 亚洲午夜精品久久久久久抢 | 最近更新2019中文字幕免费 | 亚洲免费久久 | 欧美三级视频在线 | 狠狠撸亚洲视频 | 91香蕉人成app | 欧美激情一区二区三级高清视频 | 99国产精品久久久久久久日本竹 | 狂野欧美 | 四虎网站 | 波多野结衣中文一区 | 亚洲精品在线观看91 | 国产亚洲精品中文带字幕21页 | 欧美一夜爽爽爽爽爽爽 | 成人美女免费网站视频 | 国产XXXXXX农村野外 | 狠狠五月色婷婷蜜桃777 | 国产人澡人澡澡澡人碰视频 | 久久综合给合久久狠狠狠97色 | 日本高清免费一本视频在线观看 | 综合久久久久综合97色 | 国产对白国语对白 | 国产乱码卡二卡三卡43 | 亚洲色精品一区二区三A片 亚洲三级无码经典三级 | 五月天婷婷免费视频观看 | 国产精品久久久久久久久久妇女 | 久久96国产精品久久久 | 免费啪视频观看视频 | 狠狠干2022 | 天天操夜夜操视频 | 在线观看国产日韩 | 99热最新在线 | 日韩精品观看 | 视频一区日韩 | 91精品中文字幕 | 无码色AV一二区在线播放 | 色导航网址大全 | 久久99精品免费视频 | 岛国精品无码少妇在线 | 麻豆精品国产 | 亚洲一级大片 | 成人亚洲国产综合精品91 | 色男人网站 | 忘忧草WWW大地行情网 | 大山里真实刮伦小说 | 最近最新中文字幕免费高清1 | 一区二区三区精密机械 | 99在线在线视频观看 | 看全色黄大色黄女片 | 午夜A片无码福利1000集 | 色情无码WWW视频无码区下载 | 天天爱夜夜操 | 午夜宅宅伦电影网中文字幕 | 欧洲精品不卡1卡2卡三卡四卡 | 久久综合香蕉久久久久久久 | 久久国产香蕉视频 | 伊人婷婷综合缴情亚洲五月 | av天天看 | 黄页网站在线观看视频 | 蜜色欲多人AV久久无码 | 51国偷自产一区二区三区 | 亚洲图片欧美在线97色色 | 免费 高清 日本视频 | 最好看十大无码AV | 蜜臀国产在线视频 | 午夜欧美艳情视频免费看 | 三级黄色一级视频 | 最近中文字幕高清免费大全1 | 黄色三级视频 | 欧美激情A片一区二三区 | 黄视频在线观看www 黄视频网站在线看 | 精品国产乱码久久久人妻 | 草莓视频福利院 | 日本一道一区二区免费看 | 这里只有精品久久 | 1区2区3区产品乱码免费 | 欧美成人性色xxxxx视频大 | 精品久久久久久国产 | 狠狠色噜噜狠狠狠狠98 | 这里只有精品视频在线 | 7777色| 无码欧美69精品久久久久 | 亚洲入口无毒网址你懂的 | 国产三级精品三级在专区 | 在线一区播放 | 最近韩国日本免费观看免费 | 人人干操| 日韩免费中文字幕 | 99国产午夜精品一区二区 | 国产精品人妻系列21P | 国产aaa免费视频国产 | 国产91香蕉成人app软件 | 国产精品综合AV一区二区国产馆 | 欧美亚洲蜜桃成熟 | 日本中文字幕在线视频站 | 日本成人高清视频 | 算你色永久免费视频播放 | 亚洲国产精品嫩草影院在线观看 | 精品无人乱码一区二区三区的优势 | 亚洲AV怡红院影院怡春院 | 中川美香 | 免费光看午夜请高视频 | 特级做A爰片毛片免费69 | 四虎最新在线永久免费 | 中文xxx视频 | 亚洲A片无码精品毛片色戒 亚洲A片无码精品毛片 | www.av在线视频| 伊人成人网| 国产午夜精品久久久久九九 | 出差被公舔到高潮 | 色系工口里番大全全彩 | 亚洲欧美精品无码大片在线观看 | 亚洲第一国产 | 在线高清无码欧美久章草 | 国产又黄又爽又刺激的免费网址 | 免费看的黄色网址 | 国产精品久久久久永久免费看 | 欠cao的sao货撅屁股双性 | 99国产精品高清一区二区二区 | 热热涩热热狠狠色香蕉综合 | 国产麻豆亚洲精品一区二区 | 快播官网首页 | 成人性爱视频在线观看 | 久草成人在线视频 | 亚洲精品国产国语 | 最近2019中文字幕免费 | 日本正能量不良网站 | 欧美一级手机免费观看片 | 日本一本免费线观看视频 | 久久国产精品永久免费网站 | 成人影院线在线观看免费观看 | 美女扒开胸罩露出奶头的动态图片 | 三级毛片在线看 | 成人片在线观看地址KK4444 | www.四虎com| 日本xxx在线观看免费播放 | 亚洲国产精品一区二区动图 | 苍井空大尺寸视频大全 | 欧美人与性动交a欧美精品 欧美人与物videos新另类性 | 99爱在线精品视频免费观看9 | 一女被多男枪H又黄又激烈 一女多男np高辣文h | 日韩毛片免费线上观看 | 国精品人妻无码一区二区三区软件 | 国产情侣一区二区 | 99精品国产成人一区二区 | 中文天堂网在线www 中文色 | 成人亚洲A片V一区二区三区小说 | 高清无码日本一区二区 | аⅴ资源中文在线天堂 | 国产青草| 自拍 偷拍 亚洲 欧美 另类 | 亚洲国产区男人本色在线观看 | 桃子视频在线观看高清免费视频 | 美女扒开腿让男人桶爽30分钟 | 精品熟女少妇AV久久免费软件 | 午夜在线观看cao | 国产精品高潮呻吟久久影视A片 | 午夜理论电影在线观看亚洲 | 国产精品99久久免费黑人人妻 | 亚洲一卡2卡3卡4卡5卡新国色天香 | 欲求不満の人妻松下纱荣子 | 高H各种PLAY全肉NP | 国产午夜AV亚洲欧美小说 | 波多野结家庭教师 | 欧美日韩一日韩一线不卡 | 99久在线精品99re6视频 | 欧美日韩国产一区三区 | 级毛片久久久毛片精品毛片 | 最近的中文字幕国语电影直播 | 人妻洗澡被强伦姧完整国产 | 欧美真人性做爰一二区欧美影院 | 久久久毛片 | 日本黄页网站 | 無码一区中文字幕少妇熟女网站 | 四虎影视影院电影在线 | 日本xxxxwwww| 亚洲性无码AV久久成人 | 欧美特黄一级高清免费的香蕉 | 欧美日韩在线一区二区三区 | 色翁荡熄又大又硬又粗又视频软件 | 国产在线观看免费一级 | 在线色| 国产亚洲欧美日韩v在线 | 桃子视频免费观看完整版HD | 中国国产高清一级毛片 | 光棍影片在线观看免费 | 一级日本高清视频免费观看 | 乱小说录目伦400篇 乱小说录目伦合集 | 婷婷六月天激情 | 亚洲成人黄色片 | 亚洲免费资源 | 精品亚洲国产熟女福利自在线 | 无图 亚洲 欧美 偷拍 | 亚洲情A成黄在线观看动漫软件 | 丰满的女邻居在线观看 | ts在线视频 | 性午夜影院 | 国产免费区 | 波多野结衣在线一区 | 免费中文字幕在线 | 欧美性生交活XXXXXDDDD | 中文字幕无码A片久久 | 欧美三级黄色大片 | 欧美jizzhd精品欧美高清 | 91天堂影院| 亚洲在线成色综合网站 | 免费日韩中文字幕高清电影 | 男人舔女人的阴部黄色骚虎视频 | 久久视频在线 | 日日弄 | 中文字幕 国产精品 | 日本不卡视频在线播放 | XL上司带翻译带中文 | 四房播播看 | 8x网站免费入口在线观看 | 欧美大陆日韩一区二区三区 | 成片一卡二卡三卡观看 | 深夜毛片 | 免费无码一区二区三区蜜桃大 | 欧美成人精品免费播放 | 天天碰免费视频 | 在线观看视频观看高清午夜 | 午夜伊人 | 一起探恋爱综艺在线观看第七期 | 99热只有 | 影音先锋 av男人资源 | 免费观看激色视频网站bd | 韩国电影甜性涩爱 | 欧美video巨大粗暴乌克兰 | 亚洲欧美制服丝袜一区二区三区 | 日本一区二区三区无码苍井空 | 乱欲小话说又粗又大 | 精品深夜AV无码一区二区老年 | 五月婷婷六月激情 | 狠狠爱在线影院 | 灌饱娇嫩H将军公主最新章节 | 久久久国产精品免费A片蜜芽广 | 中文字幕完整视频高清 | 影音先锋男人资源 站 | 免费无码一线A片AAA片 | 爱唯侦察地址发布 | 国产成人福利免费视频 | 亚洲国产精品一区二区三区在线观看 | 少妇高清性色生活片成人版 | 天堂√在线中文资源网 | 精品久久久无码人妻中文字幕边打电话 | 亚洲精品1卡2卡三卡4卡乱码 | 波多野结衣日韩 | 国产亚洲精品第一区香蕉 | 亚欧有色在线观看免费版高清 | 91制片厂 果冻传媒 天美传媒 | 123成人网| 色qvod| 狠狠色丁香婷婷久久综合考虑 | 内射白浆一区二区在线观看 | 99国产亚洲精品无码成人 | 51人人看 | 97午夜理论片影院在线播放 | 最近更新中文字幕免费版 | 国产第一页视频 | 国产精品久久久久久人妻香蕉 | 综合激情婷婷 | 丁香婷婷九月 | 99热66| 李玲大尺度| 午夜wwww| 91福利视频合集 | 成人A片动漫无码免费播放 成人A片免费看男人社区 | 欧美一级免费在线观看 | 翁公的粗大挺进我的密道 | BGMBGMBGM毛多老太 | 国产精品A久久久久久久久 国产精品AV国片偷人妻麻豆 | 人妻系列_第 9 部分 | 97在线精品视频免费 | 亚洲精品久久久久久久观看 | 久久综合伊人77777麻豆 | 国产又色又爽又刺激的A片 国产又色又爽又黄的A片 | 欧洲日韩视频二区在线 | 99久久香蕉国产综合影院 | 真钱牛牛 pt88.vip | 精品一区二区三区在线成人 | 超清中文乱码字幕在线观看 | 一道本av免费不卡播放 | 波多野结衣免费线在线 | 日韩不卡一卡二卡3卡四卡2021免费 | 五月天丁香久久 | 把腿张开看老子臊烂你免费 | 黄网在线播放 | 日日撸网站 | 国语自产拍在线观看偷拍 | 久久免费看少妇高潮A片特黄多 | 在线观看黄网视频免费播放 | 久青草国产97香蕉在线视频 | 国产高清管线免费视频 | 97精品国产 | 亚洲精品一区无码A片 | 亚洲手机中文字幕 | 免费A级毛片无码鲁大师 | 国产浓毛大泬熟妇视频 | 日本成人免费在线观看 | 国产深夜男女无套内射 | 国产电影一曲二曲三曲图片 | 国产护士一级毛片高清 | 99re热精品视频国产免费 | 先锋影音男人av资源 | 国产欧美日韩另类精彩视频 | 高辣H文黄暴糙汉文H文 | 高清一区二区不卡视频 | 网色网站 | 麻豆传煤网站免费入口ios | 97久久超碰中文字幕 | 黄色软件草莓丝瓜秋葵安卓下载破解版大全 | 老司国产高清免费视频 | 日本大胆欧美人术艺术 | 少妇被躁爽到高潮无码A片小说 | 大尺度做爰啪啪床戏男人小说 | 麻豆精品人妻一区二区三区蜜桃 | 视频一区中文字幕日韩专区 | 婷婷激情久久 | 亚洲国产中文在线二区三区免 | 国产ww久久久久久久久久 | 日产亚洲一区二区三区 | 亚洲另类自拍小说图片 | 久久天天躁狠狠躁夜夜躁 | 免费乱理伦片在线观看八戒 | 人人澡人人爽人人精品 | 日韩精品卡4卡5卡6卡7卡3卡 | 日韩不卡在线视频 | 看全色黄大色黄大片爽一次 | 中文字幕专区高清在线观看 | 伦 乱真实故事 | 亚洲欧美久久 | 一本色道久久88一综合 | 日本黄页网站在线观看 | 国产欧美日韩视频免费 | 性插图动态图无遮挡 | 国产亚洲综合一区二区在线 | 亚洲国产中文字幕 | 国产三级在线观看视频 | 毛片不卡一区二区三区 | 国产乱子视频 | 女人张开腿让男人桶免费网站 | 7M精品福利视频导航 | 日本A片把舌头伸进粉嫩视频 | 三级韩国三级日产三级 | 亚洲午夜影视 | 狠狠色丁香久久婷婷 | 成年男人午夜片免费观看 | 妺妺窝人体色20242024野大粗 | 国产免费A片好硬好爽好深小说 | 国产亚洲tv在线观看 | 一起看动漫 | 我就是要当着他的面做你 | 欧美香蕉大胸在线视频观看 | 特级淫片国产免费高清视频 | 日本大片A成人无码超级麻豆 | 最近日本免费观看高清视频 | 亚洲成人免费电影 | 你懂得视频在线 | 无套内谢少妇毛片A片免 | 好大好硬好爽18禁视频免费 | 婷婷五月在线视频 | 少妇愉情理伦片丰满丰满午夜小说 | 国产成人久久精品推最新 | 一区二区三区高清 | 99re免费| 国产成人精品久久久久婷婷 | 日本高清不卡码无码v亚洲 日本高清免费毛片大全 | 欧美三级经典免费播放 | 蜜柚AV久久久久久久 | 亚洲国产精品v在线播放 | 99视频在线 | 亚洲 欧美 天堂 综合 | 亚洲国产精华液网站W | 男女ppp视频 | 97碰碰碰免费公开在线视频 | 久久国产精品999 | 国产精品久久久久久久久免费hd | 无码人妻欧美丰满熟妇区毛片 | 久久黄色录像 | 国产成人精品大片免费下载 | 成人激情视频在线 | 女人下边被添全过程A片小说 | jizz18日本| 么么哒日本影院 | 欧美又大粗又黄又爽无码 | 久久国产高清字幕中文 | 四虎官方影库首页 | 影音先锋女人AA鲁色资源 | 天堂岛最新版在线bt天堂 | 日本三级韩国三级美三级91 | 四房播播成人社区 | 国精视频一区二区视频 | 女同桌张开腿让我爽了一夜 | 女人18毛片a级毛片一区二区 | 蜜桃视频m3u8在线观看 | 成年男人裸j网站 | 欧美一卡二卡三卡四卡免ios | 国产一区二区无码蜜芽精品 | 韩国电影理伦片完整 | 日韩欧美一二三区 | 日韩一区二区不卡 | 免费精品国产人妻国语色戒 | 精品欧美成人高清在线观看2021 | 爱逼色| XL上司带翻译带中文 | 日本毛片爽看免费视频 | 亚洲精品久久久久久无码AV | 99久久成人| 少妇做爰又色又紧夜视频 | 最近中文字幕完整版视频1 最近中文字幕完整版视频 最近中文字幕视频国语中文字幕 | 91久久精品一区二区 | 日韩免费视频在线观看 | 玖草在线中文在线2024 | 伊人久久大香线蕉无码麻豆 | 欧美性生交大片免费看A片免费 | 日本在线高清视频 | 国产精品国产成人国产三级 | 国产精品三级在线 | 成电影人免费网站 | 国产午夜精品久久久久九九 | 国内精品视频在线播放一区 | 性一交一乱一交A片久 | 亚洲品质自拍网站 | 精品视频一区二区三三区四区 | 国产婷婷午夜无码A片 | 激情射精爽到偷偷C视频无码 | 国产小情侣自拍 | 天天爽夜夜操 | 双性精跪趴灌满h室友4p | 成年福利片在线观看 | 一个人看的www视频高清免费 | 中文字幕在线视频精品 | 99re免费在线视频 | 女同学粉嫩无套第一次 | 在线视频一区二区三区四区 | 黄a网站 | 日本三级本道在线播放 | 少妇被躁爽到高潮无码久久 | 另类视频综合 | 日本最新免费二区三区 | 国产精品无卡无在线播放 | 天天做天天爽天天谢 | 黄色网址在线视频 | 一本久道久久综合久久鬼色 | 久久免费看少妇高潮A片特黄多 | 国产不卡视频在线观看 | 2021中国大陆精品视频xxxx | 人妻体内射精一区二区三区 | 牛牛影视精品一区二区在线看 | 久久三级影院 | 久久天天丁香婷婷中文字幕 | 五月婷婷开心深深爱 | 日本大片免a费观看视频 | 色偷偷色偷偷色偷偷在线视频 | 欧州一级毛片 | 国产精品不卡在线观看 | 免费人成A片在线观看免费 免费视频精品38 | 成人丝袜射 | 九九热久久只有精品2 | 久久99精品久久久久久野外 | 国产一级特黄高清免费大片dvd | 99je全部都是精品视频在线 | 久久99爱视频 | 午夜福利合集1000在线 | 亚洲日韩在线a视频在线观看 | 中国少妇VIDEOS露脸HD | 色爱区综合五月激情 | 成人女人A级毛片免费软件 成人片AV | 亚洲精品偷拍AV一区二区 | 欧洲综合色 | 亚洲精品午夜一区二区电影院 | www.com毛片| 色丁香在线视频 | 日产在线播放视频在线观看 | 日韩人妻无码精品系列 | 波多野たの结衣A片 | 爆乳隔壁人妻中文字幕 | 少妇被又大又粗又爽毛片久久黑人 | 激情婷婷丁香五月色综合 | 亚洲精品一卡2卡三卡4卡5卡 | 99精品视频在线观看re | 国产超高清麻豆精品传媒麻豆精品 | 欧美另类视频在线 | 亚洲精品A片99久久久久 | 婷婷基地网 | 欧美色中色 | 进去粗粗硬硬紧紧的好爽免费视频 | 意大利军营医生1976 | 久久精品视 | 国产精品99久久免费观看 | 中国免费黄色片 | 中文精品一卡2卡3卡4卡国色 | 久久99国产精品久久99果冻传媒 | 国产精品久久久久久搜索 | 成人A片一区二区三区在线观看 | 最近中文字幕高清中文字幕1 | 朋友的人妻的滋味BD中文 | 91精品手机国产在线观 | 外国成人网址 | 涩涩免费网站 | 天天操天天射天天操 | 免费的又色又爽又黄的视频软件 | 国产精品免费久久久免费 | 中文乱码35页在线观看 | 亚洲A片无码一区二区蜜桃 亚洲A片无码一区二区蜜桃久久 | 最近中文字幕2019免费BD | 中文字幕亚洲欧美日韩2019 | 美国日本一区二区三区 | 国产91色在线 | 亚洲 | 国产真实乱人偷精品人妻图 | 奇米在线777在线视频 | 亚洲色欲色欲在线大片 | 亚洲欧美在线观看一区二区 | 青草电影院 | 精品剧情v国产在线麻豆 | 成人免费aaaaa毛片 | 欧美精品一区二区蜜臀亚洲 | 日韩视频大全 | 成人v| 亚洲.日韩.欧美另类 | 欧美成人一级 | 久久亚洲一级毛片 | 野花成人福利在线 | 91精品福利一区二区三区野战 | 国产成人综合久久精品红 | 欧美精品另类 | 四虎影视永久地址www成人污 | 日本高清视频:色情www | 日本在线观看一级高清片 | 国产国语特级一级aa毛片 | 久久视频精品38在线播放 | 老司机福利在线免费观看 | 欧美日韩不卡合集视频 | 色噜噜噜AV亚洲男人的天堂 | 每日最新avhd101天天看新片 | 欧美性猛交XXXX乱大交极品 | 在线观看视频观看高清午夜 | 亚洲性无码A片在线观看尖叫 | 男女一边摸一边做爽爽的免费文字 | 大胆国模GOGO人体私拍 | 国产精品久久久久久久久久久搜索 | 99国产揄拍国产精品人妻蜜 | 免费大片黄在线观看视频 | 搞黄网站免费观看 | 肉欲系列短500篇小说合集 | 日韩一级视频 | 波多野结衣中文在线观看 | 美日韩精品 | 国产精品久久久久久久久免费观看 | 免费黄a | 97色伦图片在线观看 | 少妇高潮灌满白浆毛片免费看 | 日本wwxx| 国产情侣久久精品 | 老司机欧美 | 亚洲一级在线观看 | 久久久无码精品国产人妻 | 日日摸夜夜添夜夜添A片公司 | 97视频在线观看播放 | 成人午夜视频在线观看 | caoporn视频在线观看 | 99久久精品全部 | 国产福利1000 | xxxwww黄色| 校园又色又夹爽又黄的小说 | 国产特级毛片AAAAAAA高清 | 国内卡一卡二卡三免费网站 | 欧美性生交大片免费看A片免费 | 黄a级免费 | 国产日韩欧美一区二区 | 漂亮的丰年轻的继坶3在线 漂亮的丰年轻的继坶3在线观看 | 国产a一级毛片爽爽影院 | 动漫精品视频一区二区三区 | 视频一区免费 | 欧美在线三级艳情网站 | 成人网页 | 一级做a爱视频 | 午夜深夜福利网址 | 色网站观看 | 素人约啪第五季 | 伦理片琪琪影院免费观 | 糖心vlog国产剧免费观看 | 在线毛片片免费观看 | 一本到国内在线视观看 | 女医学护士一级毛片 | 国产免费网站看v片元遮挡 国产免费区 | 亚洲欧美日韩中文字幕久久 | 92看片淫黄大片一级 | 欧美第二页 | A片试看120分钟做受视频 | 毛片高清一区二区三区 | 星野亚希 护士 | 大陆一级毛片无遮挡 | 在线涩涩免费观看国产精品 | 欧美 亚洲 在线播放 | 国产成人综合视频 | 少妇被多人C夜夜爽爽 | 2024人禽伦交 | 流氓软件app免费下载大全下载 | 国产福利麻豆精品一区 | 亚洲最大色情4338 | 蜜桃色欲AV久久无码精品 | 四川BBB桑BBB桑BBB | 国产一级特黄在线播放 | 婷婷色五月开心五月 | 在线观看亚洲一区二区 | 中文字幕亚洲乱码熟女在线萌芽 | 久久天堂视频 | 国精产品一二二区视早餐有限 | 美美哒免费高清影院在线直播 | 在镜头里被CAO翻了H | 麻豆久久久9性大片 | 一起探恋爱综艺在线观看第八期 | 亚洲国产精品成熟老女人 | 日本国产亚洲 | 亚洲精品国产综合AV在线观看 | 天天舔天天插 | 免费的成人电影 | 丰满的日本护士xxx 疯狂撞击美妇雪白的大肉臀 | 国产精品久久毛片完整版 | 日韩免费精品视频 | 就去色播 | 国产日韩视频在线观看 | 毛片网站在线观看 | 女人下边被添全过程A片小说 | 国产真人性做爰视频免费40分钟 | 日韩黄色视屏 | 久久久久久亚洲精品不卡 | 日本一区二区在线看 | 澡人人澡人澡人人澡天天 | 欧美日韩亚洲区久久综合 | 在线观看免费播放网址成人 |