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

abrangente

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

soijx

10 Oct 2025(atualizado 10/10/2025 às 00h23)

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

Temas

Compartilhe

OurTrip aumenta seis vezes de tamanho em 2025 e ganha notoriedade no mercado online de viagens PressWorks Valor Econ?mico.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 single personalised poker chipits 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

Zambia_presses_China_for_more_compensation_after_toxic_spill_in_Kitwe_copper_mine.txt

One of the world's most sacred places Mount Sinai is being turned into a mega-resort.txt foco e os enciclopédia entretenimento.

GRáFICOS

nos eixos

'I always knew I'd go into boxing' Molly McCann Sport.txt

Os benefícios de treinar na areia da praia.txt enciclopédia e os explorar enciclopédia.

Navegue por temas

OpenAI criará plataforma de empregos voltada à inteligência artificial, em competi??o com LinkedIn Empresas Valor Econ?mico.txt Otherworldly photos of an Arctic city.txt Opep+ deve concordar com novo aumento na produ??o de petróleo no domingo, dizem fontes Finan?as Valor Econ?mico.txt Os portos mais influentes do mundo e seus impactos.txt Os produtos de skincare testados e aprovados pelo Prêmio Glamour de Beleza 2025.txt PEC que muda precatórios congela mercado e derruba pre?os Finan?as Valor Econ?mico.txt Os melhores perfumes, body splashes e velas do Prêmio Glamour de Beleza 2025.txt OpenAI criará plataforma de empregos voltada à inteligência artificial, em competi??o com LinkedIn Empresas Valor Econ?mico.txt Os créditos de PIS e Cofins na transi??o para a CBS Fio da Meada Valor Econ?mico.txt Ouro fecha em queda com arrefecimento nas tens?es comerciais Finan?as Valor Econ?mico.txt
久综合色| 亚洲四房 | 韩国理伦电影 | 高清一级毛片一本到免费观看 | 在线综合 亚洲 欧美 日韩 | 亚洲精品午夜一区人人爽 | 国产乱码卡1卡二卡3卡4卡5 | 国产在线不卡一区 | 91香蕉视频在线 | 久久久无码精品一区二区三区 | 激情小说在线观看 | 一起看影院 | 日本黄页免费 | 日韩欧美一区二区三区 | 天美 麻豆 果冻 | 免费 在线电影 | 日日碰狠狠躁久久躁20247 | 丰满女邻居做爰BD | 波多野结衣久久精品免费播放 | 免费又色又爽又黄的视频 | 久久黄色免费网站 | 女人18毛片a级毛片 女人扒开屁股爽桶30分钟 | 中文字幕日本特黄AA毛片 | 亚洲欧美一区二区成人片色欲AV | 下流女孩| 69精品在线观看 | 郭美美种子| 国产精品人妻无码免费A片导航 | 校园 在线 亚洲 都市 | 福利500精品导航大全 | 久久成人麻豆午夜电影 | 亚洲乱码伦小说区 | 久热九九 | 小蝌蚪视频app无限看 - 丝瓜ios视频丝瓜视 | 久久精品66| 国精产品999一区二区三区有限 | 婷婷丁香视频 | 久久日韩精品无码一区 | 在线观看日韩 | av先锋影音资源男人站 | 精品日本亚洲一区二区三区 | 国产香蕉97碰碰久久人人 | 97色伦久久视频在观看 | 国产精品69人妻无码久久 | 香蕉久久av一区二区三区 | 四虎影午夜成年免费精品 | 午夜理论片日本中文在线 | 色青片大全电影国语 | 美景之屋4在线未删减免费 美景之屋4在线 | 神马午夜福利线及电影 | 高清不卡二卡三卡四卡无卡 | 在线免费观看精品 | 免费在线播放黄色 | 99国产精品九九视频免费看 | 彩色h中文漫画 | 精品久久免费视频 | WWW射我里面在线观看 | 97在线线免费观看视频在线观看 | 欧洲乱码卡一卡二 | 丰满人妻无码AV一区二区免费 | 久久成人永久免费播放 | 人人爱免费在线观看 | 成年看片永远免费 | 性XXXX18精品A片一区二区 | 99久久精品国产一区二区三区 | 国产精品无码AV天天爽色欲 | 开心五月 激情五月 深爱五月 | 韩国久久久久无码国产精品 | 亚洲色图在线观看视频 | 日本免费一区二区三区视频 | 精品福利视频导航 | 日本理论片强奷AA片 | 日韩内射美女人妻一区二区三区 | 艳妇臀荡乳欲伦岳TXT免费下载 | 8x在线观看免费视频 | 99久久精品免费看国产漫画 | 久久婷婷国产剧情内射白浆 | 男生解开内衣揉捏胸视频 | 极品美女久久久久久久久久久 | 国产精品原创永久在线观看 | 免费视频片在线观看大片 | 久久亚洲精品国产亚洲老地址 | 国产专区日韩精品欧美色 | 国产亚洲麻豆精品AA片在线观看 | 欧美一级日本a级v片下载 | 日日噜噜夜夜狠狠扒开双腿 | 一区二区三区视频 | 免费国产一级特黄久久 | 国产精品久久久久久搜索 | 日韩精品无码视频一区二区蜜桃 | 麻豆精品一卡二卡三卡 | 久久精品国产999久久久 | 青青草成人影视 | 少妇高潮抽搐无码AV久久 | 色吊丝永久性观看网站 | 亚洲精品久久久久一区二区三 | 国产丰满人妻一区二区电影 | 天天做.天天爱.天天综合网 | 久久视频在线 | 中文无码第3页不卡av | 色妞网站 | 亚洲国产精品成人精品A片 亚洲国产高清在线观看视频 | 99热这里只有精品免费 | 91精品免费久久久久久久久 | 欧美色综合高清视频在线 | 一本久道久久综合狠狠躁AV | 亚洲精品国产精品精 | 国色天香AV在线观 | 吉泽明步超m自缚痴女 | 午夜福利视频10000在线观看 | 亚洲国产精品天堂在线播放 | 成全在线观看免费观看大全 | 日韩色情一区二区无码AV | 色婷婷综合在线 | 免费无码A片一区二三区 | 国产专区一区 | 日韩 欧美 国产 师生 制服 | 日本不卡在线一区二区三区视频 | 成人激情小视频 | 国产福利一区二区三区在线视频 | 刺激一区仑乱 | 日本一区午夜爱爱 | 亚洲综合久久1区2区3区 | 欧洲亚洲精品 | 波多野结衣三级在线观看 | 欧美激情中文字幕一区二区 | 国产精品色情国产三级在线观 | 中文字幕在线永久视频 | 9999在线视频 | 亚洲国产传媒色情AV | 中文字幕国产视频 | 草草免费观看视频在线 | 九九影院免费还看视频 | 成人性爱视频在线观看 | 婷婷激情综合色五月久久竹菊影视 | 色婷婷久久啪啪一区二区 | 久久综合社区 | av免费无码天堂在线 | 国产98在线 | 免费无码又色又爽的视频软件 | 亚洲AV无码男男A片在线观看 | 亚洲日产韩国一二三四区 | 成人A片动漫无码免费播放 成人A片免费看男人社区 | 欧美极品jizzhd欧美4k | 99久久无码一区人妻A片竹菊 | 亚洲人成在线播放无码 | 欧美成人精品三区综合A片 欧美成人精品区综合A片 | 四虎永久在线观看免费网站网址 | 99国产在线视频 | 精品人妻无码一区二区三区4 | 国产毛片儿| 久久AV无码乱码A片无码苍井空 | 婷婷色亚洲 | 高清无码国内自拍视频 | 免费看高视频hh网站免费 | 天天操夜夜操视频 | 7723日本电影免费观看完整版 | 天天射天天射天天干 | 影音先锋中文字幕无码资源站 | 日本精品久久久久中文字幕 | 韩国三级日本三级在线观看 | 狠狠躁天天躁夜夜躁婷婷 | 波多野结衣一区二区三区在线观看 | 欧美一区二区影院 | 亚洲中文字幕无码专区日本苍井空 | 99麻豆精品国产人妻无码 | 日韩视频 中文字幕 视频一区 | 免费啪视频在线观看视频日本 | 欧美流行 在线播放 | av电影全集 | 99r精品视频| 国产自啪啪 | 粉嫩AV久久一区二区三区王玥 | 久青草影院在线观看国产 | 国产日产亚洲系列首页 | 狠狠操狠狠操狠狠操 | 日本一视频一区视频二区 | 极品美女久久久久久久久久久 | www黄视频 | 成年私人影院网站在线看 | 娇妻在客厅被朋友玩得呻吟漫画 | 成人v | 2019精品国产品在线18年网 | 久久99婷婷五月综合色啪 | 中文字幕亚洲第一页 | 国产熟妇的荡欲午夜视频 | 国产情侣久久 | 少妇饥渴放荡的高潮喷水 | 色婷婷精品免费视频 | av线上免费观看 | 国产亚洲精品久久久久5区 国产亚洲精品久久久闺蜜 国产亚洲精品久久久999无毒 | 无码高潮又爽又黄A片 | 娇喘潮喷抽搐高潮麻豆A片 娇喘呻吟欲仙欲死的娇妻 娇妻被朋友玩得呻吟在线电影 | 日本日本熟妇中文在线视频 | 日韩经典一区 | 中出内射颜射骚妇 | 午夜视频91| 成人a在线 | 成 人 网 站 在线 | 黄在线网站 | 成年网站在线观看 | 荡公乱妇第1章方情公憩系列大 | 一个人看的片在线WWW免费中文 | 欧美亚洲国产一区 | 免费无码A片一区二三区 | 99自拍视频在线观看 | 日韩在线卡2卡3卡4卡5卡免费 | 亚洲 欧美 卡通 图区 | 中文天堂 | 色.www| 99精品久久99久久久久久 | 免费视频大片在线观看 | 日本小视频免费 | 波多野结衣hd在线播放 | 一女被多男灌满白浆受孕 | 黄网在线观看免费 | 亚洲精品久久AV无码麻小说 | 乱熟女高潮一区二区在线 | 亚洲最大在线视频 | 国产浮力草草影院CCYY | 日本三级吃奶头添泬无码 | 99视频国产精品免费观看app | 日本一区二区三区欧美在线观看 | 国产黄网在线 | 少妇特黄A片一区二区三区小说 | av电影下 | 免费动漫在线观看 | 69堂在线观看国产成人 | 99久久精品国产一区二区小说 | 午夜免费视频网站 | 国产亚洲精品久久孕妇呦呦你懂 | 窝窝午夜看片 | 亚洲熟妇毛茸茸 | 成人黄色免费网址 | 精品视频在线免费观看 | 天天综合色天天综合 | 久久久久久久综合日本亚洲 | 狠狠i撸| 国产欧美日产A片 | 勿言推理日剧在线观看 | 国产女人乱人伦精品一区二区 | 日本伊人网| AV色欲无码人妻中文字幕 | 一个人的高清视频www | A级毛片无码久久精品免费 a级毛片在线免费 | 国产真实老熟女无套内射 | 中文字幕乱码熟妇五十中出 | 国产麻豆久久 | 亚洲老王 | 国产AV国片精品一区二区 | 日本不卡视频免费的 | 精品乱码一区内射人妻无码 | 国产在线视精品在亚洲 | 激情丁香小说 | 欧美女同在线观看 | 色爱五月天 | 久久久精品3d动漫一区二区三区 | 中文字幕精品一区 | 欧美伦理片美亚电影网 | 亚洲日韩精品AV中文字幕 | 国产精品久久人妻无码电影张丽 | 成年网站在线播放 | 久久亚洲精品玖玖玖玖 | 国精产品999国精产品官网 | 色网在线| 97狠狠干 | 亚洲欧美日韩中文综合v日本 | 国产激情久久久久影院小草 | 8x海外永久免费视频看看 | 欧美日韩中文一区二区三区 | 亚洲免费黄色 | 天天综合天天干 | 亚洲熟女乱色综合亚洲图片 | 岛国三级| 色555| 国产亚洲一区在线 | 免费网站在线观看人数在哪里看的 | 国产乱对白精彩在线播放 | 美国一级毛片片aa久久综合 | 蝌蚪在线播放视频 | 国产女人综合久久精品视 | 久久黄色录像 | 亚洲色大成网站WWW永久在线观看 | 四虎国产成人免费观看 | 午夜在线观看视频免费成人 | 国产精品福利片 | 亚洲区中文字幕 | 人人澡人人澡人人澡 | v在线 | 国产MD视频一区二区三区 | 欧美亚洲综合另类无码 | 成人午夜羞羞爽爽视频欧美 | 国产AV一区二区熟女人妻 | 中文字幕在线国产 | 99国产在线视频有精品视频 | 日本无码WWW在线视频观看 | 黑人极品videos精品欧美裸 | 强壮公弄得我次次A片 | 国产内射爽爽大片 | 在线视频精品免费 | 久久伊人在 | 九九九视频 | 亚洲最新永久在线观看 | 天堂在线资源最新版 | 国产在线不卡一区 | 99视频精品国产免费观看 | 亚洲精品久久99蜜芽尤物TV | caoporn 视频| 一本大道熟女人妻中文字幕在线 | 欧美女同视频 | 91视频免费网址 | 欧美中文字幕在线视频 | 国产成人综合亚洲 | 一级一级女人18毛片 | 这里只有精品在线观看 | 出轨熟女人妻艳妇 | 色婷五月 | 伊人第一页 | 久久久免费看少妇高潮A片特黄 | 国产精品一区二区三区四区五区 | 里番本子侵犯肉全彩A片视频一区 | 艳美动漫在线观看 | 91精品手机国产在线能 | 性饥渴的漂亮女邻居BD视频 | 娇妻的闺蜜下面好紧 | 无码国产伦一区二区三区视频 | 久久ww| 午夜天堂一区人妻 | 在教室伦流澡到高潮H强圩动漫 | 91制片厂制作果冻传媒八夷 | 手机在线亚洲国产精品 | 欲色影视天天一区二区三区色香欲 | 国产精品伦理久久久久久 | 极品少妇XXXX精品少妇偷拍 | jiizzyou欧美| 无码一区二区在线欧洲 | 欧美成人免费A片爽爽爽 | 久久免费香蕉视频 | 狠狠躁天天躁小说 | 天天操天天插天天干 | 美女诱惑性感揉胸 | 国产乱老熟妇吃嫩草 | 日产2021免费一二三四区在线 | 亚洲成aⅴ人片在线观 | 吕知樾百度云资源 | 伦理电影中文手机在线观看 | 校草被老师肉到失禁H | 内射爽无广熟女亚洲 | 激情丁香开心久久综合 | 五月色丁香婷婷网蜜臀AV | 内衣秀无打底露了毛 | 无人视频观看高清完整免费 | 日韩国产免费一区二区三区 | 亚洲午夜久久久久久91 | 帅哥摸舔美女全身视频 | 天天撸在线影院 | 亚瑟影院 | 微拍福利88 | 亚洲 欧美 自拍 制服 另类图片 | 国产在线不卡免费播放 | 麻豆精品传媒 | 最刺激的刮伦小说冢庭 | 性夜夜春夜夜爽AA片A | 久久精品av | 2022国产精品自在线拍国产 | 日本中文字幕巨大的乳专区 | 免费一级欧美大片在线观看 | 中文字幕乱码一区二区欧美 | 国产成人免费高清在线观看 | 色网址在线观看 | 黄色一级性生活视频 | 九九久久精品国产免费看小说 | 天天干夜夜爱 | 国产综合欧美日韩在线 | 久久99精品久久久久久综合 | 久久热最新地址获取1 | 色久久| 久播播快播 | 工口里番外番全彩无遮挡 | 免费福利视频导航 | 亚洲欧美一区二区三区九九九 | 亚洲国产AV一区二区三区四区 | 色婷婷.com| 一二三四中文日本无吗 | 老湿69| 日本高清免费观看高清电影 | 免费无码一线A片AAA片 | 最色网站| 久久er| 日韩一卡二卡三卡四卡免费观在线 | 天天搞夜夜操 | 夜夜躁狠狠躁日日躁2024 | 一区二区无码精品AV | 亚洲三级在线 | 又www又黄又爽啪啪网站 | 日本一卡精品视频免费 | 欧美日韩一区二区三区四区在线观看 | 日韩一卡2卡三卡4卡精品 | 曰本无码人妻丰满熟妇5G影院 | 中文国产 | 国产三级国产精品 | 热久久中文字幕 | 欧美另类高清 | 国产免费1卡2卡 | 午夜视频在线播放 | 国产传媒在线观看视频免费观看 | 视频91在线| 不卡一二区 | 婷婷五月俺去也人妻 | 国产老熟女伦老熟女熟妇图片 | 国产熟妇久久精品亚洲熟女图片 | 9966久久精品免费看国产 | 日韩三级网址 | 扶着岳从后面挺进 | 色人影视 | 国产免费三级a在线观看 | 成片一卡三卡四卡免费网站 | 亚洲色欲色欲www在线观看 | jizz.日本| 色图片网 | 久久久久久91香蕉国产 | 国产男女猛烈视频在线观看 | 久久99久久精品国产99热 | 99re久久精品在线播放 | 成人电亚洲在线 | 日本一区午夜艳熟免费 | 久久直播| 日本xxxxx18护士xxx | 69成人| 97超级碰碰人妻中文字幕 | 2021久久伊人精品中文字幕有 | 亚洲男人97色综合久久久 | 欧美中文字幕一区 | 2022国产91精品久久久久久 | 日韩视频免费一区二区三区 | 一级女性全黄久久生活片免费 | 色视频亚洲 | 女人毛多水多高潮A片 | 国产国语特级一级aa毛片 | 少妇无码吹潮久久精品AV网站 | 四虎影视4HU最新地址在线 | 国产一性一交一伦一A片小说 | 亚洲色一色噜一噜噜噜 | 国产护士在病房AV做爰小说 | 国产高清毛片 | 95国产欧洲精华液 | 亚洲伊人久久精品 | 亚洲欧美自拍制服另类图区 | 欧洲男女下面进出的视频 | 日韩精品视频免费在线观看 | 出差我被公高潮A片1000部 | 激情 婷婷 | 在线综合亚洲中文精品 | 久久精品亚洲一区二区三区浴池 | 老湿机免费体十分钟 | 特级毛片全部免费播放免下载 | 亚洲中文字幕特级毛片 | 好硬啊一进一得太深了A片69 | 你懂的福利视频 | 幻女与人xx00毛片免费 | 国产特黄特级AAAAA片 | 中文字幕精品一区 | 成人久久欧美日韩一区二区三区 | 麻豆AV字幕无码中文 | 在教室伦流澡到高潮H强圩动漫 | 777午夜精品久久AV蜜臀 | 色毛| 四虎影视国产884a精品亚洲 | 亚洲欧美日本国产 | 国产福利一区二区麻豆 | 97视频人人| 亚洲 日韩 国产 中文视频 | 强硬进入岳A片69色欲VA | 国产在线视频精品视频 | 精品久久一区二区三区 | 精品国产不卡一区二区三区 | 日韩人妻熟女中文字幕 | 久久88台湾三级香港三级 | 国产卡一卡二卡3卡4乱码 | 在线看播放免费网站 | 黄色三级网 | 国产精品18久久久久久欧美 | jizz曰本 | 久久久WWW成人免费精品 | 中文字幕日韩女同互慰视频 | 黄乱色伦短篇小说h | 各种场合肉H校园1V1 | 亚洲精品无码一区二区 | 成人在线免费电影 | 蜜桃视频在线观看免费网址入口 | 日本大片免费视频在线 | 国产一三区A片在线播放 | 大菠萝福利污下载APP | 亚洲狼人综合 | 欧美乱妇无码毛片 | 亚洲三级无码经典三级 | 九九免费精品视频 | 国产精品久久久久久久免费A片 | 午夜AV福利一区二区三区内射 | 在线观看播放理论片 | 性色香蕉AV久久久天天网 | 久久久乱码精品亚洲日韩小说 | 亚洲激情在线 | 色偷偷在线视频直播 | 精品人妻无码一区二区三区下载 | 日本视频在线免费看 | 国产精品久久久久久久午夜片 | 色婷婷成人 | 国产91专区| 日本一区二区在线看 | 欧美一区二区三曲的 | 女主播直播大尺度视频获刑 | 亚洲国产中文字幕 | 我的公把我弄高潮了视频 | 国产乱人偷精品人妻A片 | 天天色综合天天 | jizzjizz国产精品久久 | 一个人看的视频看免费 | 人妻奶水人妻系列 | 亚洲巨乳自拍在线视频 | 日日噜噜噜夜夜爽爽狠狠 | 国产精品久久久久久久久久久久 | 亚洲欧洲精品成人久久曰 | 日韩一区二区三区不卡 | 99久久免费看少妇高潮A片 | 国产一区在线播放 | 国产精品成人嫩妇 | 免费观看碰碰碰视频在线观看 | 视频在线观看国产 | 色爱综合网 | 国产啪精品视频网免费 | 在线精品国精品国产不卡 | 黄色片在线网站 | 十九岁日本电影免费粤语高清 | 久久曹| 久久久久香蕉 | 午夜视频a| 孕妇孕妇aaaaa级毛片视频 | jizz日本在线| 亚洲美女视频高清在线看 | 午夜啪啪剧场 | 真人插B免费视频播放 | 欧美xxxx狂喷水喷水 | 日本一区二区三区免费高清在线 | 四虎影视在线影院在线观看免费视频 | 手机福利视频导航 | 琪琪电影福利网2017 | 日b在线观看 | 六月丁香婷婷综合 | 波多野结衣1区 | 日韩小视频网站 | 中文字幕欧美一区 | 精品三级66在线播放 | 免费搞逼视频 | 欧美日韩视频一区二区三区 | 色情无码WWW视频无码小说 | 秋霞成人午夜鲁丝一区二区三区 | 日日噜噜夜夜狠视频免费 | 热久久久久 | 老熟女强人国产在线播放一区 | 日本高清免费一本视频在线观看 | 男人和女人做污污污的事APP免费 | 日本黄页网 | 99精品视频在线观看免费 | 精品视自拍视频在线观看 | 从零开始的异世界生活第一季 | 四虎影视在线影院在线观看 | 日韩精品免费一线在线观看 | 日本波多野结衣字幕久久 | 51视频精品全部免费最新 | 亚洲欧美中文日韩二区一区 | 中文精品字幕电影在线播放视频 | 一级做a爰片久久免费 | 九九久久国产 | 黄色片免费网址 | 手机在线中文字幕乱码 | 中文成人在线 | 国产成人一区二区三区在线观看 | 国产免费一级精品视频 | 亚洲一级毛片免费观看 | 波多野结衣三区 | 婷婷激情综合五月天 | 和美女同事的电梯一夜 | 婷婷色激情 | 国产日韩高清一区二区三区 | 日本一区二区三区在线观看网站 | 美国毛片免费一级 | 国产成人在线观看免费网站 | 小草影院亚洲私人影院 | 日本少妇BBW丰满做爰 | 97人妻熟女成人免费视频 | 精品久久久久久免费影院 | 亚洲午夜久久久精品影院 | 狼人青草久久网尹人 | 日本成熟视频免费视频 | 色偷偷AV亚洲男人的天堂 | 久久黄色网 | 久久免费视频3 | 免费国产又色又爽又黄的网站 | 午夜精品网站 | 黑人巨茎大战俄罗斯白人美女 | 一道本不卡免费高清在线 | 麻豆传媒在线完整视频免费 | 一级一级一级毛片 | 午夜日韩 | 免费女人18a级毛片视频 | 成年黄网站免费大全毛片 | 欧美一道本一区二区三区 | 漂亮的av明星 | 思思久久99热只有频精品66 | 性做久久久久久蜜桃花 | 亚洲日本高清 | 亚洲色欲成人无码网站在线观看 | 精品不卡高清视频在线观看 | 日本一本免费线观看视频 | 图片区 亚洲 在线视频 | 91国内视频在线观看 | 色吊丝永久性观看网站 | 无码爽大片日本无码AAA特黄 | 99视频精品免费99在线 | 色情狠久久AV五月综合五月 | 最近中文字幕免费大全8一 最近中文字幕免费国语6 | 好爽别插了无码视频 | 不卡久久 | 男人的天堂av社区在线 | 狠狠躁日日躁夜夜躁A片小说天美 | 久久久噜噜噜久久 | 久久视频精品3线视频在线观看 | 欧美综合色婷婷欧美综合五月 | 当着闺蜜的面被抽插后入小说 | 国产农村妇女精品一二区 | 小秘书夹得好紧太爽H大肉乳 | 天天综合网站 | 1024国产欧美日韩精品 | 欧美美女一区二区三区 | 97视频在线免费 | 黄色毛片视频免费 | 国产肥白大熟妇BBBB视频 | 免费的三级毛片 | 成AV人片在线观看WWW | 中文字幕乱码熟妇五十中出 | 九九国产在线 | 亚洲女bbwxxxx另类 | 蜜臀色欲AV无人A片一区 | 99re免费视频精品全部 | 超碰caoporen国产| 亚洲精品无码高潮喷水A片软件 | 久久久久久久久免费影院 | 欧美人妻一区黄A片 | bt天堂网www bt天堂网.www在线资源 | 婷婷第四色 | 久操亚洲 | 成人久久18免费网 | 99久久久无码欧美精品性 | 色翁荡息肉欲系列小说 | 亚洲色欲色欲202477小说 | 精品卡一卡三卡四卡乱 | 亚洲精品一区二区三区四区久久 | 小说区视频区 | 青草网在线观看 | 色偷偷免费视频 | 狠狠干狠 | 米奇777色狠狠8888影视 | 欧美激情在线播放一区二区三区 | 亚洲精品入口一区二区乱麻豆精品 | 日本无码一区二区三区不卡 | 色网站欧美 | 泷泽萝拉 快播 | 亚洲精品无码成人A片在线虐 | 国产亚洲精品久久久无码狼牙套 | 日本三级2019在线观看免费 | 五月婷婷激情五月 | 99视频精品全国在线观看 | 三级毛片黄色 | 特黄A又粗又大又黄又爽A片软件 | 伊人久久大香线蕉观看 | 日本理论片午午伦夜理片2024 | 天堂中文资源在线观看 | 女人张开腿让男人桶爽免 | 国产精品资源站 | 黄色 在线 | 亚洲一线二线三线品牌精华液久久久 | 999国产高清在线精品 | 国产hd高清freexxxx | 激情亚洲AV在线一区二区三区 | 樱花草视频在线观看www中文 | 亚洲一区二区三区色情爆乳 | 欧美日本一道高清二区三区 | cao美女视频在线观看 | 在线看电视网站 | 丁香五月 激情 婷婷 | 亚洲精品中文一区二区在线 | 久久久无码精品国产人妻 | 精品国产96亚洲一区二区三区 | 4日本私人vps生活大片 | 网站可以免费观看 | 久久最新免费视频 | 四虎影片| 国产最新凸凹视频免费 | 国产jizzjizz视频全部免费 | 一级欧美一级日韩片 | 丝瓜成视频人APP下载网站 | 40集电视剧免费看全集在线观看 | 人人做人人爽人人爱影视 | 成人午夜视频在线观看 | 亚洲色图在线观看视频 | 色www永久免费 | 亚洲一区二区三区在线播放 | 四虎影视在线地址最新 | 天美影视传媒 | 亚洲国产精品色情777777 | 国内精品久久久久久久999下 | WWW国产亚洲精品久久久日本 | 近親五十路六十被亲子中出 | 欧美日韩性高爱潮视频 | 大叔爱上我视频在线观看 | 按摩高潮A片一区二区三区 澳门永久av免费网站 | 九九在线观看精品视频6 | 久操精品视频 | 亚洲精品久久久久中文字幕二区 | 男女做爰猛烈啪啪吃奶真人免费 | 亚洲一区黄色 | 国产乱码一区二区三区 | 免费啪视频在线观看视频日本 | 女人aaaaa片一级一毛片 | 中文在线资源链接天堂 | 全肉高黄高h的小说推荐 | 777片理伦片在线观看 | 越南护士毛茸茸性 | 午夜高清在线 | 拉风色影院 | 中文字幕亚洲欧美日韩2019 | 国产又爽又大又黄A片软件 国产又爽又大又黄A片图片 | 野花社区WWW中文高清版 | 护士97资源站共享总站 | 500福利国产精品导航在线 | 91亚洲国产成人久久精品网址 | 欧美韩国日本一区 | 国色天香AV在线观看免费 | 色翁荡熄76篇 | 妺妺窝人体色WWW网站 | 国产又黄又爽又猛免费app | 色中色影视 | 91在线播放视频 | 亚洲 欧美 日韩在线一区 | 69老司机精品视频免费观看 | 欧美精品hdvideosex4k | 亚洲精品久久久久999666 | 日本大胆色情高清视频 | 台湾一级毛片永久免费 | 人妻奶水人妻系列 | 国产一区二区三区精品AV | 伦理片飘花手机在线 | 黄色免费网址在线观看 | A片试看120分钟做受视频 | 久久久这里只有免费精品2024 | 美女扒开腿让男人桶尿口 | 亚洲 天堂 国产在线播放 | 97色在线视频观看香蕉 | 性调教室高H学校小说 | 色资源二区在线视频 | 国产又粗又黄又爽的A片精华 | 日韩午夜 | 国产精品扒开做爽爽爽的视频 | 美女69xxxxx的视频 | 真紧H嘶爽老子H | 午夜一区二区免费视频 | 国产精品久久久久久久久久久威 | 国产精品69白浆在线观看免费 | 亞洲AV女優無碼人妻濑亚美莉 | 国产目拍亚洲精品一区二区 | 在线视频免费观看爽爽爽 | 在线欧美国产 | 欧美三级A做爰在线观看 | 擼一擼AV网站 | 又黄又刺激好看的小说 | 特级做A爰片久久毛片A片国 | 免费无码一区二区三区A片百度 | 国模沟沟一区二区三区 | 国产一级久久免费特黄 | 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 | 久操手机在线视频 | 美国毛片亚洲社区在线观看 | 最大的高清色情在线网 | 99国产精品人妻无码免费 | 午夜理论在线观看不卡大地影院 | 成人亚洲区无码偷拍12P | 精品国产青草久久久久福利 | 全部免费国产潢色一级 | 欧美老妇性生活 | 精品无码一区二区三区不卡 | 人妻少妇久久久久久97人妻 | 成人午夜AV亚洲精品无码网站 | 国产日韩精品一区在线观看播放 | 免费观看片 | 亚洲精品国产一区二区三 | 波多野结衣家庭教师诱惑 | 亚洲精品资源在线 | 秋霞电院影伦理 |