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

enciclopédia

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

kin

12 Oct 2025(atualizado 12/10/2025 às 08h57)

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

Temas

Compartilhe

Silent Hill f' \u00e9 recome\u00e7o promissor para franquia dormente h\u00e1 13 anos'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 concurso 3958 quinaits 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

Zarb_The_Bedouin_answer_to_barbecue.txt

Famílias de homens que desapareceram após cobrarem dívida no PR oferecem recompensa a quem tiver novas pistas enciclopédia e os moda entretenimento.

GRáFICOS

nos eixos

You_just_cant_recreate_that_glow_The_people_who_hunt_old_TVs.txt

PM usa bombas de gás para dispersar manifesta??o por moradia na Liberdade, Centro de SP, neste feriado de Independência ponto quente e os entretenimento entretenimento.

Navegue por temas

Criatividade e empreendedorismo s?o aspectos marcantes em Santa Cecília, um dos bairros mais diversos de SP Adolescente é suspeito de causar acidente ao dirigir carro e bater contra ambulancia da prefeitura em Penápolis VíDEO: suspeito é baleado ao tentar atropelar policial em estacionamento de shopping da Zona Norte de SP Raul Gil apresenta melhora no quadro de saúde, mas continua internado em hospital de SP Incêndio em barrac?o de cooperativa de recicláveis em Ilha Solteira segue ativo pelo 3o dia C?es farejadores encontram 62 kg de cocaína escondidos em contêiner no Porto de Santos, SP Colis?o frontal entre caminh?o e carro mata uma pessoa e deixa três feridas na SP-215 Estudante de medicina bicampe? na prova dos Três Tambores em Barretos diz que encontra alívio no esporte: 'Sem cobran?a' Investiga??o de homicídio sob sigilo e suspeitos foragidos: desaparecimento de homens que foram cobrar dívida no Paraná completa um mês Chuleta, bolinho, polenta, trem e cambuci: conhe?a os passeios gastron?micos do ABC
欧美精品久久 | 视频在线观看一区 | 亚洲美洲韩美在线观看 | 波多野结衣全部系列在线观看 | 日本无码专区亚洲麻豆 | 男女激烈精交GIF动态图 | 四虎8848精品永久在线观看 | 国产高清在线观看视频手机版 | 人人干夜夜操 | 色婷婷综合缴情综六月 | 黄色免费网站在线播放 | 日韩大片在线观看 | 91啊啊啊| 四虎影视在线看完整视频 | 好黄好猛好爽好痛的视频 | 亚洲国产美女免费视频 | 天堂岛最新版在线bt天堂 | 校园春色综合网 | 色网在线观看 | www 色| 狠狠色噜噜狠狠狠狠奇米777 | 一区二区三区成人A片在线观看 | 成人片毛片A片免费观看欧美 | 激情A片久久久久久播放 | 毛片在线播放网址 | 啪啪啪免费视频 | 亚洲 欧美 制服 | 殴美激情 | 夜夜骑日日操 | 人禽互交50篇视频 | 国产精品高潮呻吟久久影视A片 | 日本中文在线观看 | 国产一卡三卡四卡无卡精品 | 高清波多野结衣一区二区三区 | 宅男噜噜66 | 亚洲人成综合在线播放 | 免费无码AV色情在线 | 日本亚洲视频 | 欧美高清束缚xxxxhdhd | 蜜桃成熟李丽珍 | 亚洲一级电影 | 欧美做爰猛烈动高潮视频 | 亚洲欧美bt | 中文字幕在线电影观看 | 精品久久久影院 | 久草最新网址 | 小雄的性生活 | 久久亚洲国产中文字幕 | 黄色免费毛片 | 欧美无人区码卡二卡3卡4免费 | 国产目拍亚洲精品一区二区 | 人人人看 | 色综合久久88色综合天天 | 国自产拍偷拍精品啪啪色 | 国产乱妇无码大黄AA片 | 国产又硬又粗进去好爽A片软件 | 欧美中文字幕在线视频 | 国产三级在线 | 亚洲成AV人片在线观看WV | 久久草这在线观看免费 | 亚洲一线二线三线品牌精华液久久久 | 欧美深深色噜噜狠狠yyy | 欧美激情一区二区三级高清视频 | 911精品国产自产在线观看 | 人人爱夜夜爽日日做视频 | 亚洲无码一区二区 | 国产AV一区二区三区传媒 | 搜麻豆 | 成 人 网 站毛片 | 久久久这里只有免费精品2018 | 国产成人无码免费看视频软件 | 国产小视频2023 | 香蕉爱视频| 欧美影院入口 | 直接看毛片 | 久久免费手机视频 | 人禽伦交小说 | 国产免费A片好硬好爽好深小说 | 国产精品乱码色情一区二区视频 | 中文字幕电影乱码在线观看 | 美果tv免费在线观看电视剧 | 2017av无码免费无线播 | 美女直播洗澡的软件下载 | 精品人妻无码一区二区三区手机板 | 国产一区免费在线观看 | 99热久久久无码国产精品性麻豆 | 国产亚洲精品久久7788 | 一级毛片一级毛片免费毛片 | 久久久久女人精品毛片九一 | 国产69精品久久久久久人妻精品 | 色情www欧美影院 | 国产对白国语对白 | 99久久久无码国产精品免费砚床 | 浙江乱子伦对白 | 亚洲AV国产福利精品在现观看 | 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 | 国产伦精品一区二区三区免费观看 | 国产老熟女伦老熟妇视频 | 日本大片高清免费视频日本 | 最近更新中文字幕完整版视频 | 在线乱码一卡二卡麻豆 | 黄色链接在线观看 | 日本99久久九九精品无码 | 色噜噜噜AV亚洲男人的天堂 | 69久久国产露脸精品国产 | 亚洲精品永久免费 | 在线欧美国产 | 99热99操99射 | 伊人热 | 亚洲免费一区二区 | 日韩精品欧美激情亚洲综合 | 精品人妻少妇一区偷拍视频 | 欧美黄区 | 老司机午夜精品视频在线观看免费 | 韩国无删减 | 97国产精华最好 | av影音先锋天堂网 | 欧美一区二区三区成人看不卡 | 日本精品中文字幕有码 | 亚洲 欧美 字幕 一区 在线 | 国产人妻精品无码AV在线浪潮 | 日本护士xxxxx在线播放 | 伊人精品视频直播 | 欧美日韩在线免费 | 黄色成人在线网站 | 黄网站在线观看高清免费 | 国产网址在线观看 | 国产精品丰满人妻AV麻豆 | 久久视频这有精品63在线国产 | 亚洲国色天香卡2卡3卡4 | 国产熟妇精品伦一区二区三区 | 久久精品一本到东京热 | 极品成人 | 久久国产视频网站 | 真人一级一级特黄高清毛片 | 日韩在线观看精品 | 欧美性高清极品猛交 | 日韩福利片午夜在线观看资源 | 精品欧美成人高清在线观看2021 | 中字幕视频在线永久在线 | 日韩av线| 欧美成人一区亚洲一区 | 日本三级香港三级国产三级 | 国产在线黄色 | 天天综合天天做天天综合 | 久热热热 | 久久精品国产首页 | 日韩在线永久免费播放 | 翁公又大又粗挺进了我 | 色姑娘综合网久久 | 这里只有精品视频在线 | 91在线播放视频 | 丁香花色情成人网站 | 国产福利高清在线视频 | 综合自拍亚洲综合图区 | 久久综合一区二区三区 | 奇米在线777在线视频 | 一区二区亚洲精品国产精华液 | 免费高清在线影片一区 | 成人区人妻精品一区二欧美毛片 | 国产精品一区在线免费观看 | 国产11一12周岁女毛片 | 饥渴偷公乱第400章 激烈娇喘叫床声床震爽文 激情aa视频试看免费 | 精品无码一区二区三区蜜桃 | 免费永久欧美性色xo影院 | 亚洲精品久久久久久久蜜桃臀 | 亚洲性夜色噜噜噜在线观看不卡 | 91免费永久国产在线观看 | 亚洲综合色色图 | 五月天激情综合网 | 精品国产乱码久久久久夜深人妻 | 久久99精品一久久久久久 | 男女性高爱麻豆 | 免费一级片视频 | 少妇人妻偷人精品视蜜桃 | 国产美女视频免费观看的网站 | 国产熟妇的荡欲午夜视频 | 亚洲丰满熟妇XXXX性A片 | 久久久综合结合狠狠狠97色 | 天天做天天爱天天射 | 日本少妇A片又爽又黄 | 亚洲免费在线播放 | 日韩欧美三级视频 | 欧美啪啪网站 | 激情五月婷婷综合 | 亚洲欧美日韩国产专区一区 | 美国三级在线 | 最新发布页ccyycom草草影院 | 美女网站免费福利视频 | 经典强奷系列人妻 | 亚洲精品久久久久久中文 | 西班牙一级特级毛片dvd | 亚洲欧美中文v日韩v在线 | 内射无码专区久久亚洲 | 亚洲第一成年人网站 | 无码高潮又爽又黄A片日本动漫 | 亚洲一卡一卡二新区乱码无人区二 | 中文字幕 亚洲 有码 在线 | 91精品国产亚一区二区三区 | 天天插天天插 | 最近中文字幕免费完整 | 色婷婷免费视频 | 欧美日韩精 | 狠狠色噜噜狠狠狠狠69 | 性满足久久久久久久久 | 国产真实乱人偷精品人妻图片 | 色综合天天综合网国产成人网 | 我的战舰能升级动漫免费观看 | 久久久国产精品免费A片3D | 国产一国产一级毛片视频 | 欧美深夜福利网站在线观看 | 老汉色老汉首页a亚洲 | 欧美一级欧美三级在线观看 | 日韩经典AV在线观看 | 99国产精品高清一区二区二区 | 巨人精品福利官方导航 | 天天操天天操天天操天天操 | 国产一区视频在线 | 国产一区a| 性生爱120分钟 | 国产精品久久久久精 | 女人十八毛片A片久久18 | 中文字幕中文字幕在线 | 最近最新2019中文字幕 | 国产高清亚洲日韩字幕一区 | 黄色18网站 | 美美哒免费高清影院在线直播 | 久久97久久97精品免视看秋霞 | 丁香花视频在线播放免费观看 | 亚洲欧洲国产成人综合一本 | 国产99在线播放 | 亚洲日本欧美产综合在线 | 97亚洲狠狠色综合蜜桃 | 国色天香精品一卡二卡三卡四卡 | 日韩在线观看精品 | 五月婷婷六月综合 | 99久久精品国产国产毛片 | 女人下边被添全过程A片图片 | 亚洲女同在线 | 最近免费中文字幕大全免费 | 玖玖爱精品视频 | 国产精品一区二区在线播放 | 国产一区二区三区乱码在线观看 | 最好在线观看免费韩国日本电影 | 肉体裸交丰满丰满少妇在线观看 | 护士一级毛片 | 97久久国产露脸精品国产 | 久久男女 | 国自产拍偷拍福利精品啪啪 | 日韩精品AV一二三区在线 | 国产在线视频自拍 | 女人张开腿让男人桶爽免 | 五月天激情综合网 | 久久九九少妇免费看A片 | 麻豆传煤免费网站入在线观看 | 成人18网站| 久热网站| 中文在线资源链接天堂 | 7M精品福利视频导航 | 天堂亚洲欧美日韩一区二区 | 国产在线精品视频二区 | 中文乱码在线中文字幕中文乱码 | 先锋影音波波资源网 | 精品人妻无码一区二区三区下载 | 色欲久久精品无码一区二区三区 | 桃子视频直播高清在线 | 我的公把我弄高潮了视频 | 噜啊噜色在线观看视频 | 91色综合| 久久特级毛片 | 九九视频在线看精品 | 免费真实播放国产乱子伦 | 黄色网点| 免费观看又色又爽又黄的软件 | 伊人夜夜 | 欲色AV无码一区二区人妻 | 海角国精产品一区一区三区糖心 | 国产一区二区三区美女在线观看 | 国产亚洲自拍一区 | 美国一级毛片免费看成人 | 肉伦禁忌小说 | 国产人妻人伦精品潘金莲 | 色婷婷色综合 | 亚洲欧美综合日韩字幕v在线 | 久久国产AVJUST麻豆 | 一卡二卡三卡四卡无卡在线 | 成年福利片在线观看 | 欧美国产日本高清不卡 | 99久久无码一区人妻A片蜜臀 | 翁公与小莹在客厅激情 | 免费无码又爽又刺激A片软软件 | 日本综合在线 | 亚洲国产成人在人网站天堂 | 一区二区在线看 | 亚洲精品色情婷婷在线播放 | 中文字幕一区二区在线观看 | 一区二区三区线日本 | 97无码欧美熟妇人妻蜜 | 国自产拍偷拍福利精品啪啪 | 波多野结衣免费一区二区三区香蕉 | 99奇米a影色777四色在线观看 | 污污的漫画小说羞羞漫画 | 成AV人片在线观看WWW | 黄页网站免费在线观看 | 五月婷婷激情第五季 | 日韩精品在线看 | 久久综合第一页 | 人妻AV久久一区波多野结衣 | 免费人成视频 | 免费日本黄色 | 国产亚洲一区二区麻豆 | 国产福利91精品一区二区 | 国产波多野结衣中文在线播放 | 波多野结衣中文字幕久久 | 国产精品27页 | 免费福利资源站在线视频 | 最新欧美人妖hdxxxx | 轻点大JI巴太粗太长了A片 | 国产免费久久 | 被两个同桌绑起来玩乳动态gif | 国产精品扒开腿做爽爽爽A片软件 | 日本肥熟 | 久久精品视频5 | 卯月麻衣作品 | 天天综合网天天综合色 | 国产成人无精品久久久久国语 | 亚洲中文字幕永久在线全国 | 久久久久久噜噜噜久久久精品 | 影音先锋av在资源天堂 | 成全在线观看免费播放 | 日本无码看片视频一区 | 又爽又色又舒服A片免费 | 在线免费观看国产视频 | 午夜伦理片 | 国产精品人妻无码免费A片导航 | 成人色网站大全 | 区久久AAA片69亚洲 | 蜜臀AV色欲无码A片一区 | 黑人巨茎大战白人女40CM | 国精品无码一区二区三区在线A片 | 国产SUV精二区 | jizz曰本| 真实乱L仑口述全过程 | 免费被黄动漫网站在线无网观看 | 欲妇荡岳丰满少妇A片24小时 | 谁有三级网站 | 亚洲熟女乱色综合亚洲图片 | 少妇无码吹潮久久精品AV网站 | 伦理片97影视网 | 欧美日韩精品一区二区三区视频在线 | 家庭教师波多野结衣在线观看 | 日韩不卡在线播放 | 最近2019免费中文字幕视频三 | 亚洲午夜网站 | 久久久99精品久久久久久 | 嗯好舒服嗯好猛嗯好大不要 | 综合久久久久久 | 亚洲欧美日韩另类精品一区二区三区 | 风韵丰满熟妇啪啪区老熟熟女 | 性按摩xxxxx| 日韩在线一 | 最近最新最好的2018中文字幕 | 国产AV国片精品一区二区 | 国产人成 | 色视频2 | 日本哎哎哎视频免费1000 | 在线观看视频99 | 大香伊人中文字幕精品 | 在线黄色小视频 | 快播5.0.77精简版 | 日本福利网站 | 国产成人在线观看网站 | 国产一级簧片 | 久久精品久久精品久久 | 久久天天躁夜夜躁狠狠85麻豆 | 国产精品jizzjizz | 无码欧美黑人又大又 | 国产v视频 | 第四色俺去也在线视频 | 色一情一乱一伦一区二区三区 | 亚洲这里只有精品 | 国产网站免费 | 日本高清在线看片免费视频 | 无码欧美一区二区三区 | 亚洲AV成人天堂影院 | 日本一区二三区好的精华液 | 国产熟妇精品伦一区二区三区 | 国产欧美在线手机观看 | 国产精品对白刺激久久久 | 欧美老熟妇又粗又大 | 久久五月综合婷婷中文云霸高清 | 五月亭亭免费高清在线 | 韩三平的父亲 | 草久热| 艳妇臀荡乳欲伦岳TXT免费下载 | 久久6699精品国产人妻 | 免费精品美女久久久久久久久久 | 黄色一级片在线播放 | 色黄网站大全 | 大色网我爱看 | 久久精品九九亚洲精品天堂 | 亚洲精品无码成人A片在线虐C | 精品人妻无码一区二区三区葡京 | 91制片厂果冻传媒七夕 | 午夜性色吃奶添下面69影院 | 在线观看高清黄网站免费 | 老司国产高清免费视频 | 偷拍快播| 亚洲精品久中文字幕 | 国语普通话对白CHINESE | 91精品国产入口 | 无码欧美喷潮福利XXXX | 青草内射中出高潮 | 玉蒲团之灯草和尚 | 青草视频网 | 日本久久黄色 | 欧洲男女下面进出的视频 | 国产乱人伦AV麻豆网 | 成人久久久久久 | 婷婷色香五月激情综合2020 | 99热久久是有精品首页 | 久久在线 | 大片免免费观看视频播放器在线观看 | 成人午夜精品网站在线观看 | 草久网| 亚洲国产精品久久久久秋霞影院 | 国产极品JK白丝喷白浆免费视频 | 偷偷鲁在线影院 | 伦理片在线线249 | 香蕉99| 91午夜精品亚洲一区二区三区 | 性欧美video另类hd亚洲人 | 日本色呦呦 | 97蜜桃网站 | 成人在线视频免费观看 | 国产精品国产三级国产普通 | 亚洲 欧美 国产 日韩 中文字幕 | 亚洲字幕AV一区二区三区四区 | 日本特黄特色视频 | 久久精品AV一区二区无码 | 99久久国产露脸人妻精品 | 国产人妻XXXX精品HD电影 | 99久久精品国产一区二区小说 | 抖音成长人版短视频安装 | 水蜜桃视频在线播放下载 | 国产黄色片在线播放 | 中文一卡二卡三卡四卡免费 | 国产亚洲精品久久yy50 | 99视频在线观看视频 | 国产国产乱老熟女视频网站97 | 亚洲国产欧洲精品路线久久 | 亚洲羞羞视频 | 国产人妻人伦精品久久无码 | 国产一三区A片在线播放 | 色婷婷五月色综合小说 | 古代荡女丫鬟高H辣文纯肉 古代高H啪肉NP文 | 日本一本二本三区免费2019高清 | 狠狠干影院 | 久久免费视屏 | 亚洲AV久久无码精品九号 | 久视频在线观看久视频 | 国精视频一区二区视频 | 免费日产乱码卡一卡2卡三卡四 | 国产人妻久久精品二区三区老狼 | 特级做A爰片久久毛片A片喷水 | 黑人巨大两根一起挤进A片小说 | 毛片视频网址 | 日韩精品午夜视频一区二区三区 | 91极品视频| 日韩在线视频www色 日韩在线免费观看视频 | 老司机午夜视频在线观看 | 亚洲卡一卡2卡三卡4麻豆 | 91嫩草国产在线观看免费 | 天天操夜夜做 | 久久综合综合久久狠狠狠97色 | 麻豆映画传媒新剧免费观看 | 让人爽到湿的小黄书软件下载 | 成人网站免费大全日韩国产 | 一级aaaaaa毛片免费 | 欧美成亚洲 | 日本高清视频在线的 | 陈书婷被肉干高H潮文 | 日韩欧美视频一区 | 四川BBB搡BBB爽爽视频 | 国产精品一区在线观看你懂的 | 乌龙院1国语免费完整版 | 激情五月婷婷在线 | 一级黄色片免费观看 | 亚洲欧美中文无码蝴蝶 | 久久瑟瑟| 黄色免费在线观看网站 | 无码人妻精品一区二区三区蜜臀 | 国产美女做爰A片免费 | 分享一个无毒不卡免费国产 | 成人国内精品久久久久影院 | 激情 婷婷 | 国产日韩欧美一区二区 | 成人激情视频在线 | 亚洲成人原创 | 一区二区三区四区国产 | 精品综合久久久久97 | 在线天堂中文www官网 | 日韩伦理片在线 | 美国毛片亚洲社区在线观看 | 亚洲AV色情成人www | 黑人又大又粗又硬XXXXX动态图 | 午夜毛片视频高清不卡免费 | 最近中文国语字幕在线播放 | 女人十八毛片A级十八女人 女人十八毛片A片久久18 | 日本一区二区三区免费看 | 国产熟女内射OOOO | 久久99精品久久久久久噜噜 | 中文字幕不卡在线 | 香港一级淫片高清视频 | 久久精品1 | 国产中文字幕视频在线观看 | 永久免费品色堂 | 亚洲大肥女ass| 久久精品视在线观看2 | 欧美黄a| 久久在精品线影院精品国产 | 日本国产欧美 | 出差被公舔到高潮 | 中文不卡一卡二卡 | 波多野结衣xfplay在线观看 | 日韩三级伦理 | 性色做爰片在线观看WW | 青青草a免费线看 | 丝袜性爱视频 | 国产成人精品视频 | 久久综合九色综合97_ 久久久 | 天天做.天天爱.天天综合网 | 黄色成年人视频 | 少妇又大又粗又硬啪啪 | jizz在线观看免费视频 | 免费看的黄色网址 | 欧美一级影院 | 国产一区视频在线免费观看 | 欧美精品色婷婷五月综合 | 国产偷国产偷亚洲高清午夜 | 日本精品欧洲www | 国产人澡人澡澡澡人碰视频 | 亚洲色站导航 | 日本高级按摩人妻无码 | 国产ts人妖系列视频网站 | 久久爱色欲AV | 国内精品伊人久久久久 | 国产精品久久久久久久上海公司 | 国产97人妻人人做人碰人人爽 | 欧美乱xxxxxxxxx | 日本三区四区免费高清不卡 | 最近日本韩国高清免费观看 | 久久不雅视频 | 娇妻的呻吟梦颖完整版 | 日韩亚洲欧美综合 | 久久国产大片 | 日韩亚洲AV无码波多野结衣 | 欧美第一福利 | 成人色色| 久久国产精品久久久久久久久久 | 国精产品一区一区三区有限公司 | 色图片大全123 | 黄网站色视频大全免费观看 | 亚洲色无码A片一区二区潘甜甜 | WWW免费刺激无码又爽又色视频 | 亚洲色婷婷久久精品AV蜜桃小说 | 日本黄视频网站 | 无码欧美又大又色又爽AAAA片 | 岛国在线无码免费观 | 日本a级影院 | 精品久久久久久久久免费影院 | 波多野结衣一区二区在线 | 午夜4k最新福利 | 国产色情av | 国产成人无码精品久久久最新A片 | 国产一起色一起爱 | 女网址www女| 国产日韩亚洲精品视频 | 成人影院wwwwwwwwwww | 影音先锋a色情av资源 | 亚洲AV无码偷拍在线观看 | 特级毛片全部免费播放免下载 | 每章都有肉并且非常黄的小说 | 99久久免费午夜国产精品 | 天天综合天天射 | 三级韩国三级日产三级 | 亚洲精品一区二区三区新线路 | 鸥美毛片 | 综合五月婷婷 | 欧亚洲精品一区中文字幕拾精者 | 伊人二区 | 狠狠干天天| 4虎影院最新地址2024 | 狠狠五月 | 成人A片产无码免费奶头小说 | 日本欧美一区二区三区片 | 色就干| 毛片三级在线观看 | 国产精品久久久久久久网站 | 夜色成人网 | 久久免费国产视频 | 欧美激情图区 | 久久国产AVJUST麻豆 | 人人电影网 | 日韩毛片免费线上观看 | 苍井空亚洲精品AA片在线播放 | 大香线蕉97久久 | 黄网站在线观看高清免费 | 免费看男人J放进女人J无遮掩 | 色系工口里番大全全彩 | 99久久99久久久99精品齐 | WW.2024色情网TUPIAN| 伊人小视频 | 在线成人色情电影网站 | 国产区免费在线观看 | 国产精品扒开腿做爽爽爽视频 | 潮吹美人鱼 | 亚洲欧美一区二区三区麻豆 | 亲亲动漫网| 国产无遮挡又黄又爽免费网站 | 国产精品点击进入在线影院高清 | 欧美日韩国产一区二区 | 97视频资源站 | 男女啪啪抽搐高潮动态图 | 日日摸夜夜摸狠狠摸97 | 亚洲色欲成人无码网站在线观看 | 好深夹的太紧了张开腿A片 好爽毛片一区二区三区色欲 | 玖玖在线资源 | 国产精品久久久久永久免费看 | 激情影院内射美女 | 欧美一区二区三区黄色 | 2024天堂中文字幕一区在线观 | 正在播放重口老熟女露脸 | 在线观看中文字幕国产 | 色综合亚洲色综合网站 | 免费日产乱码卡一卡2卡三卡四 | 2020最新国产自产精品 | 免费看黄网站入口 | 亚洲、国产综合视频 | 国产精品日本免费视频 | 亚洲一个色 | 天天躁人人躁人人躁狂躁 | 久久久99视频 | 欧美激情一区二区三区AA片 | 粉嫩AV久久一区二区三区 | 亚洲国产日韩视频观看 | 亚洲AV无码乱码国产麻豆穿越 | www日韩免费高清视频 | 成年女人免费看一级人体片 | 国内自拍第一页 | 久久久精| 久久好在线视频 | 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 | 国产永久精品大片wwwApp | 午夜免费网站 | 日韩娇小性hd | 性躯干| 成人看片黄a免费 | 粗大挺进朋友人妻身体里电影 | 深夜国产成人福利在线观看女同 | 青青草久草视频 | 精品一区二区三区四区五区六区 | 免费日韩毛片 | 在线成本人动漫视频网站 | 国产精品久免费的黄网站 | 国产中文字幕免费观看 | 国产一卡2卡3卡四卡国色天香 | 国产老熟女伦老熟女熟妇图片 | 美果tv免费在线观看电视剧 | 日韩精品午夜视频一区二区三区 | 日本视频一区二区 | 97色在线观看免费视频 | 韩国色网 | 熟女毛多熟妇人妻O在线视频 | 一级做a爰片久久毛片16 | 亚洲精品色情APP在线下载观看 | 国产国产人免费人成成免视频 | 亚洲精品久久久无码AV片软件 | 国产乱码日产精品BD | 日韩不卡在线观看视频不卡 | 少妇高潮无套内谢 | 亚洲巨乳自拍在线视频 | 含羞草传媒一区二区三 | 国产午夜福利伦理300 | 99国产亚洲精品无码成人 | 成人A片熟女人妻久久 | 亚洲精品久久久久久中女字幕 | 无码国产精品一区二区色情男同 | 最新国产在线 | 色琪琪影音先锋原网站 | 三级韩国日本三级在线 | 无限观看社区在线观看免费 | 2020国产成人免费视频 | 欧美成人免费观看久久 | a网站在线观看免费网站 | 日韩国产无矿砖一线二线图 | 国产超高清麻豆精品传媒麻豆精品 | 国产99精品一区二区三区免费 | 天天插日日胔夜夜干 | 真实露脸国产熟妇熟年妇人视频 | 在线播放波多野结衣 | 亚洲综合自拍 | 免费在线观看一区 | 日本熟妇乱人伦A片精品软件 | 国产精品 欧美在线 另类小说 | 久久精品视频在线看4 | 国产人妻人伦精品1国产盗摄 | 激情内射亚州一区二区三区爱妻 | 天天干天天谢 | 天天摸夜夜添夜夜添A片小说 | 日日艹夜夜艹 | 欧美一区二区三区在线视频 | 午夜欧美艳情视频免费看 | 久久精品国产99久久久 | 人禽无码做爰在线观看视频 | 婷婷亚洲综合 | 全黄H全肉短篇禁乱NP慕浅浅 | 德永千奈美快播 | 亚洲图片欧美在线97色色 | 视频一区视频二区在线观看 | 专干老熟女A片 | 日韩天堂视频 | 成人毛片免费网站 | 日本三级香港三级三级人!妇久 | 色中色入口 | 久久久久国产一级毛片高清板 | 熟女少妇内射日韩亚洲 | 亚色成人| 久久影院一区 | 台湾hd性xxx 四色在线 | 国产69精品久久久久人妻 | jizz在线播放| 亚洲图片你懂得 | 美女扒开胸罩露出奶头的动态图片 | 国产不卡在线视频 | 亚洲精品无码色情AV在线观看 | 公和我做爽死我了A片口述 公交车上无耻挖阴 | 最近中文字幕免费大全 | 99视频久九热精品 | 影音先锋影院中文无码 | 久久99久久99精品 | 日本成人一区 | 国产极品JK白丝喷白浆免费视频 | 久久97精品久久久久久久不卡 | 全黄H全肉短篇n男男 | 99re久久| 一日本道伊人久久综合影 | 亚洲精品图片区小说区 | 免费人欧美成又黄又爽的视频 | 影音先锋 av男人资源 | 乱系列140肉艳1一12 | 伦理片琪琪影院免费观 | 特级做A爰片毛片A片免费 | 四虎在线观看一区二区 | 中文字幕色婷婷在线视频 | 国产成人综合亚洲动漫在线 | 中文字幕乱码免费视频 | 张一苇扮演者 | 中文在线不卡 | 国产成人精品久久免费动漫 | 九九热视频免费观看 | 伊人色爱久久综合网 | 娇妻在舞厅被别人进入 | tube性欧美第一次 | 狠狠搜 | 91精品专区 | 中文字幕在线观看亚洲日韩 | 免费久久一级欧美特大黄 | 亚洲国产成人久久综合区 | 97色伦图片7778久久 | 麻豆高清免费国产一区 | 亚洲中文字幕乱码熟女在线 | 国产欧美日韩中文视频在线 | 最大胆裸体人体牲交666 | 午夜免费电影 | 干妞网视频 | 欧美1页| 伊人精品网 | 日本丰满人妻无码中文字幕 | 一区三区在线专区在线 | 2020年日本高清一卡二卡三卡四卡 | 国产一级久久久久久毛片 | 啊灬啊灬啊灬快灬A片免费直拍 | 久久精品国产免费高清 | 日韩精品视频免费网址 | 97视频在线看 | 美国日本一区二区三区 | 欧美疯狂做受xxxxx喷水 | 亚洲AV成人一区二区三区在线观看 | 久久午夜精品视频 | 国产亚洲精品久久久久久移动网络 | 亚洲 欧美 中文 在线 视频 | 国产精品人妻一区二区三区无码 | 国产免费人成在线视频视频 | 久久香蕉精品视频 | 国产亚洲精品久久7788 | 亚洲AV无码专区国产精品麻豆 | 日本最新免费网站 | 亚洲AV无码成人一区二区三区 |