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

entretenimento

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

agytcd

10 Oct 2025(atualizado 10/10/2025 às 16h44)

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

Temas

Compartilhe

Em meio a documentos, celulares e chaves, cinco crian?as e um aparelho dental s?o perdidos e achados no The Town; veja lista'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 resultado mega-sena 21 58its 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_pictures_on_the_theme_of_glass_.txt

Após 400 shows usando bolhas sobre público, Sorocaba dá dicas para Akon depois de cantor n?o conseguir usar artifício no Rock in Rio ponto quente e os entretenimento ponto quente.

GRáFICOS

nos eixos

Yorkshire_Water_given_drought_permits_to_conserve_reservoir_water.txt

'Que Xou da Xuxa é esse?': f? encontra rainha dos baixinhos e recria meme no Rock in Rio lazer e os foco lazer.

Navegue por temas

Sertanejo e K-Pop podem entrar no The Town? Roberta Medina, responsável pelo festival, responde Vocalista do Journey dá a entender que segue na banda e agradece apoio: 'Foi uma jornada espiritual' C?o-rob? Yellow que pode detectar vazamentos de gás auxiliou equipe de seguran?a no The Town; entenda como funciona equipamento Longas caminhadas, busca por sombra, filas para banheiro: g1 mostra que o público se diverte, mas também 'rala' no Rock in Rio Dona' do YouTube no Brasil, Insider foi do zero aos R$ 600 milh\u00f5es sem investidor externo Inimigo do fim, Milton Cunha curte até o 'after' no 'bus?o' ao fim do Rock in Rio; VíDEO Iza sobre estreia de show no The Town: 'Parece que entreguei minha monografia' Gusttavo Lima foi ao Rock in Rio neste domingo, antes de mandado de pris?o ser expedido; VíDEO Iza sobre estreia de show no The Town: 'Parece que entreguei minha monografia' Taís Araújo curte show de Iza com a filha e diz que cantora é uma referência para a ca?ula
在线看动漫 | 黑人狂躁日本妞无码A片视频 | 亚洲国产精品成人精品A片 亚洲国产高清在线观看视频 | 欧美日本中文字幕 | 2018精品国产一区二区 | 欧美乱偷在线 | 亚洲日本欧美日韩高观看 | 亚洲精品一区久久久久一品AV | 欧美性爱 综合 | 被几个人强的好爽小说 | 毛片网站免费 | 国产成人福利 | 97碰碰碰免费公开在线视频 | 成人性视屏 | 蝌蚪91视频 | 欧美日韩福利视频 | 妻子的背叛免费看 | 欧美ZC00O人与善交 | 国产国产东北刺激毛片对白 | 国产视频日韩 | 欧美z000zxxxx | 日本精品视频在线 | 亚欧精品一区二区三区四区 | 99C视频色欲在线 | 国产又湿又黄又硬又刺激视频 | 国产精品久久久久久吹潮 | 99热精品在线播放 | 男人午夜视频在线观看 | jizz欧洲| 欧美内射深喉中文字幕 | 久久精品国产99久久72 | 国产GV无码A片在线观看 | 日本一视频一区视频二区 | 在线观看高清影院WWW | 兽交XXXXBBBB视频.专区 | 色-情-乱-交-二三区视频 | 中文字幕国产一区 | 精品久久久久久久一区二区伦理 | 视频国产激情 | 亚洲欧美日韩中文加勒比 | 日韩插啊免费视频在线观看 | 五月天婷婷综合 | 欧美性A片人喾交 | 欧美高清一区二区三 | 午夜A片无码福利1000集 | 伊人成人网 | 色婷婷精品视频 | 久久久夜间小视频 | 最好影院在线免费看 | 艳妇臀荡乳欲伦岳TXT下载 | 国内精品久久久久久久久 | 91导航福利 | 国产精品人人爽人人做 | 欧美性生交A片免费看 | 日韩在线小视频 | 四虎官方影库首页 | 最近中文字幕2019免费BD | 国产亚洲自拍一区 | 91国内在线 | 欧洲特级做A爰片久久毛片A片 | www.香蕉| 国产人妻久久精品一区二 | 国产黄色在线观看 | 欧美性xxxx极品hdsex | WWW夜片内射视频在观看视频 | chinesegay又粗又大短视频 | 正能量免费网站WWW正能量免费 | 欧美 在线 另类 春色 小说 | 欧美片内射欧美美美妇 | 欧美黄a | 六十路の高齢熟女が中文在线播放 | 午夜影院一区二区 | 毛片在线看片 | 人人搞人人 | 久久精品久久精品久久 | 99在线在线视频免费视频观看 | 日日夜夜伊人 | 少妇高潮A片特黄久久精品网 | 操综合网| 精品免费国产一区二区三区四区 | 毛片无码免费无码播放 | 日本久久黄色 | 欧美xxxx在线 | 国产国语一级毛片中文 | 久久精品国产久精国产 | 国产一区二区三区在线影院 | 6080欧美一区二区三区四区 | 国产毛片一级 | 色天天综合色天天害人害己 | 在线亚洲天堂 | 国产高清视频免费最新在线 | 国产98在线 | 依人九九| 欲盖弄潮百度影音 | 国内精品久久久久影院网站 | а8天堂资源在线官网 | 日本午夜高清视频 | 五月婷婷丁香综合 | 五月丁香花 | 漂亮的保姆3免费中文字幕 漂亮的丰年轻的继坶3在线 | 国产成人手机视频 | 古风一女N男到处做高H | 日本韩国视频在线观看 | 中文字幕欧美在线观看 | 午夜西瓜视频在线观看 | 四虎影视国产精品 | 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 国产精品无码视频一区二区 | 美女扒开腿让男人桶爽30分钟 | 国产精品日本一区二区在线播放 | 日韩欧美在线一区二区三区 | 欧美一级大片免费看 | 一级做a爰全过程免费视频毛片 | 国产日韩欧美综合一区二区三区 | 神电影院午夜dy888我不卡 | 免费国产片 | 久久久综合久久 | 特级做A爰片毛片免费看无码 | 国产日本一线在线观看免费 | 精品综合久久88色鬼首页 | 亚洲在线一人香蕉免 | 国产精品av免费观看 | 日本黄色一区 | 美女把小内内脱个精光的照片 | 日韩欧美一区二区三区免费观看 | 天天射天天干天天色 | 日韩国产免费一区二区三区 | 天堂网在线www资源在线 | 超乳w真性中出し冲田杏梨101 | 国色天香一卡二卡三卡四卡视频 | 免费久久久久 | 久久久国产精品免费 | 日本公妇里乱片A片免费 | 国产精品久久福利新婚之夜 | 久久伊人中文字幕麻豆 | A级毛片内射免费视频 | ds精品| 黄色免费网站在线观看 | 国产精品成人影院在线观看 | 人妻被粗大猛进猛出69国产 | 女医学护士一级毛片 | 免费观看WWW成人A片 | 亚洲欧美高清无码专区 | 日本韩国的免费观看视频 | 九九免费精品视频 | 免费观看全黄做爰 | 国产精品视频h | 日本高清免费在线视频 | 韩国无码又爽又刺激的A片 韩日午夜在线资源一区二区 | 日本一区午夜爱爱 | 苍井空免费线在线观看无需下载 | 在线成人看片 | 大色网我爱看 | 年轻漂亮的妺妺中文字幕版 | 最好免费观看韩国+日本 | 精品国产一区二区三区四区勃大卷 | 精品人妻伦九区久久AAA片麻豆 | 免费一级成人免费观看 | 51成人网 | 好看的电影你懂的 | 久久综合视频网站 | 欧美88 | 亚洲 无码 在线 专区 | 久热re在线视频精品免费 | 天天干天天爱天天操 | 黑人巨大两根一起挤进A片小说 | 天堂 地址 在线 | 国产精品专区免费观看 | 国产亚洲成AV人片在线观黄桃 | 97se在线| 秋霞网一区二区 | 中文字幕亚洲码 在线观看 中文字幕无线观看在 | 天天干天天操天天插 | 国产激情在线 | 免费A片国产毛无码A片樱花 | 开心片色99xxxx | 8888色大全免费 | 欧美a极品极品欧美 | 国产精品自在拍在线播放 | 999视频在线观看 | 美妇吞吐粗长撞击迎合 | 日韩新片王网 | 无码日本亚洲一区久久精品 | 人碰人碰人成人免费视频 | 精品亚洲国产熟女福利自在线 | 欧美日本一道道一区二区三 | 亚洲丁香婷婷综合久久六月 | 无遮挡很爽很污很黄的网站 | 日韩爽爽爽视频免费播放 | 国产精品扒开腿做爽爽爽视频 | 中文字幕第1页 | 巨大乳女人做爰视频在线 | 天天干天天舔 | 2022精品福利在线小视频 | 工口里番全彩全彩无遮挡 | 无修无遮h韩漫视频网站 | 亚洲黄网在线观看 | 色网址大全123 亚洲 | 无码欧美喷潮福利XXXX | 女人被添全过程A片试看V | 午夜精品九九九九99蜜桃 | 五夜婷婷| 麻豆最新免费版 | 色鬼综合网 | 制服丝袜快播 | 久久国 | 色噜噜狠狠色综合日日 | 亚洲欧美中文字幕高清在线 | 韩国无码又爽又刺激的A片 韩日午夜在线资源一区二区 | 久久国产精品福利影集 | 天堂岛WWW最新版在线资源 | 久久久网 | 玉蒲团5之初入桃源洞2 | 日本熟妇乱妇熟色A片在线观看 | 在线一区播放 | 色哟哟在线观看免费网址 | 午夜影院06o6tv | 无码观看在线电影 | 日本丝瓜着色视频 | 亚洲.欧美.中文字幕在线观看 | 欧美亚洲另类丝袜自拍动漫 | 亚洲欧美日韩在线不卡中文 | 久久大香伊蕉在人线国产昨爱 | 妻子的背叛免费看 | 99热只有 | 女主播直播大尺度视频获刑 | 一二三四中文日本无吗 | 在线看伦理电影 | 国产精品一区二区 尿失禁 国产精品一区二555 | 年轻的老师5理伦片 | 日韩欧美一区二区三区 | 中文乱码字幕视频观看网站免费 | 国产免费成人在线视频 | 免费无码又爽又刺激A片软 免费无码又爽又刺激A片小说在线 | 色婷婷AV99XX | 一级毛片女学护士 | 国产欧美成人一区二区A片 国产女人乱人伦精品一区二区 | 天天躁了天天躁了天天躁 | 亚洲乱码日产一区三区 | 国产午夜男女爽爽爽爽爽 | 色综合网站国产麻豆 | 亚洲国产精品久久久久久网站 | 久久精品一本到东京热 | 国产又爽又刺激的视频 | 国产精品久久久久久免费软件 | 国产在线永久视频 | 免费被黄网站在观看 | 一女多男nP现代高H 一区二区三区好的精华液杨朝越 | 激情做a全过程片A | 亚洲精品无码高潮喷水A片在线 | 久久人妻精品国产一区二区 | 中文字幕乱码免费专区 | 张津瑜 警察网 | 美女扒开腿让男人桶视频在线观看 | 伦理聚合在线观看 | 日本a∨在线播放高清 | 天天做天天爱天天干 | 日本搞逼| 免费大片黄在线观看视频 | 2017秋霞理伦手机在线 | 蜜桃AV麻豆AV果冻传媒 | 被cao哭高H调教1v1H | 精品剧情v国产在线麻豆 | 国产精品久久久久久99人妻精品 | 欧美成人精品福利在线视频 | 抱着娇妻让朋友一起弄 | 亚洲国产区男人本色在线观看 | 精品人妻无码一区二区三区手机板 | 精品国产乱码久久久久久免费 | 孤零飘落燕 下载 | 91快射| 色性综合| 成人无码免费A片免费看软件 | 日韩免费毛片视频 | 欧美v片 | 福利小视频在线播放 | a级亚洲片精品久久久久久久 | 精品国产人妻一区二区三区久久 | 欧美夜夜噜2024最新 | 欧美一区二区视频97色伦 | 欧美三页 | 国产亚洲3p无码一区二区 | 思思99热久久精品在线6 | 日韩av片免费播放 | 91蝌蚪视频在线观看 | 日韩免费视频一区 | 九九九九热| 性欧美VIDEOFREE高清精品 | 国产国语高清在线视频二区 | 亚洲an天堂an在线观看 | 好片网址| 国产日产亚洲系列最新 | 欧美一区二区激情视频 | 女神花样打耳光vk | 国产又黄又爽又色视频免费软件 | 黄色网址 在线播放 | 中文字幕按摩做爰 | 不得不看的极品av作品 | 色另类 | 中文字幕精品视频在线观看 | 国产清纯91天堂在线观看 | 94成人社区 | 国产精品久久毛片A片杨颖 国产精品久久人妻互换 | 嫩草影院一二三区入口首页 | 日本三级在线观看免费 | 亚洲精品久久久久久久蜜桃臀 | 国产免费一级精品视频 | 国产无遮挡A片又黄又爽小说 | 日本国产一区二区三区 | 欧美日韩系列 | 亚洲欧美日韩中文字幕久久 | 班长你轻点灬爽灬宝贝一 | 亚洲欧美综合在线中文 | 中国免费毛片 | 亚洲天堂网站 | 亚洲AV国产AV一区无码小说 | www.四虎.com| 长泽雅美av | 黄色免费观看视频网站 | 成人在线观看免费视频 | 伊人最新网址 | 久久精品出轨人妻国产 | 欧日韩一区二区三区 | 日本成人在线看 | 国产精品亚洲精品久久品 | 精品久久亚洲一级α | 一卡二卡国产3卡4卡乱码 | 在教室伦流澡到高潮H女攻视频 | 欧美高清在线视频一区二区 | 嗯啊 流水噗呲h啪啪皇上双性 | 国产福利在线网址成人 | japanesema性按摩| 无码人妻毛片丰满熟妇区毛片国产 | 真人做爰片免费观看播放 | 韩国乱理片中文字幕在线播放 | 欧美激情欧美狂野欧美精品免费 | 三级在线国产 | 人人看电影网 | 国产亚洲精品久久久久的角色 | 亚洲自偷自拍另类图片小说 | 欧美极品一区 | 不卡视频一区二区三区 | 亚洲国产精品一区二区三区在线观看 | 国产最新免费高清在线视频 | h片免费| 日本在线高清免费爱做网站 | 美女解开胸衣露出奶头的游戏 | 最近中文字幕完整视频高清 | 亚洲人午夜射精精品日韩 | 一区二区中文字幕在线观看 | 国久久 | 日日夜夜免费精品视频 | 全黄H全肉细节文NP 全肉的色情小說 | 一个人看的www的视频免费 | 色情视现频免费观看 | 国产欧美日韩灭亚洲精品 | 校草上课时狂揉我下面 | 97人妻熟女成人免费视频 | 性日韩| 日本一本二本三区免费免费高清 | 亚洲 日本 欧美 中文幕 | 色综合啪啪 | 精品一卡二卡三卡四卡视频区 | 日韩三级在线免费观看 | h片免费观看 | 久久永久免费视频 | 99视频有精品视频高清 | 日韩精品你懂的在线播放 | 成人无码A片在线观看 | 国产精品自在拍在线播放 | 欧美极品xxx | 欧美人与物videos另类 | 99热在线播放 | 色图片大全123 | 天天色综| 亚洲极美女高清视频 | 久视频在线观看久视频 | 国产精品免费久久久久软件 | 亚洲精品国产第一区第二区 | 亚洲 欧美 变态 卡通 自拍 | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 久久人人精品 | 性荡视频播放器在线视频播放 | 国产一级做a爱片久久毛片a | 中文日本在线 | 黄在线免费 | 亚洲AV在线无码播放毛片浪潮 | 丁香六月深婷婷激情五月 | 青青草大香焦在线综合视频 | 午夜欧美 | 久久国产色 | jjzz韩国| 人妻夜夜爽天天爽三区麻豆AV网站 | 久久精品视在线观看2 | 51社区精品视频 | 国产欧美日韩精品二区 | 伊人大相蕉在线看青青 | 欧美色在线精品视频 | 色网站免费视频 | 国产精品久久久AV久久久 | 边做边爱完整版免费视频播放视频 | 巨大黑人极品vjdeo | 人妻日本无中文字幕无码 | 黄在线视频播放免费网站 | 色一伦一情一区二区三区 | 无码中文字幕AV久久专区 | a国产| 亚洲精品久久无码AV片亚洲 | 无码高潮又爽又黄A片日本动漫 | 96精品视频在线播放免费观看 | 亚洲精品一区二区 | 亚洲天堂资源网 | 久久精品国产亚洲麻豆 | 西西艺术大胆大尺度艺 | 久久人妻国产精品31 | 国产免费网站看v片在线 | A国产一区二区免费入口 | 久久精品免费人成人A片 | 免费欧美黄色 | 精品人妻伦九区久久AAA片69 | 精品人妻无码日本一区二区三区 | 久久久鲁| 欧美 日韩 国产 另类 图片区 | 国产三级黄色 | 天堂精品在线 | 久久天天躁夜夜躁2019 | 国产女女精品视频久热视频 | h色网站 | 文中字幕一区二区三区视频播放 | 亚洲精品一区久久久久久 | 亚洲字幕AV一区二区三区四区 | 久就热视频精品免费99 | 久久99精品久久久久久噜噜噜 | 国产精品久久综合桃花网 | 少妇寂寞偷公乱400章深夜书屋 | 777奇米影视笫四色88me久久综合 | 久操五月天 | 永久免费av网站 | 亚洲精品国产专区91在线 | 欧美亚洲动漫 | 高清一区二区三区日本久 | 亚洲色偷偷一区二区手机在线 | BL肉YIN荡受NP各种PLAY男男 | 激情区小说区偷拍区图片区 | 色综合综合色 | 亚洲 日韩 色 图网站 | 激情五月婷婷 | 在线最新av免费费观看 | 不卡视频一区二区 | 理论片午午伦夜理片1 | 里番肉工口全彩无遮挡 | 国产精品国产精品国产三级普 | 国产 日韩 欧美 高清 亚洲 | 欧美阿v天堂视频在99线 | 久草三级 | 免费国产成人高清在线观看网站 | 玩弄丰满少妇XXXXX性多毛 | 色撸橹综合网 | 韩日在线 | 亚洲 欧美 日韩在线一区 | 日本妇人成熟A片一区-老狼 | 国产色情A久久无码影 | 日本无码看片视频一区 | 四虎一区二区成人免费影院网址 | 欧美性A片人喾交 | 牛牛本精品99久久精品88m | 甜性涩爱下载地址 | 黄色三级网站在线观看 | 黄毛片 | 91传媒蜜桃香蕉在线观看 | 中文无码有码亚洲 欧美 | 日韩欧美一及在线播放 | 免费看黄网站入口 | 成都影院手机在线观看 | 国产人妻黑人一区二区三区 | 亚洲第一成年网 | 一区二区三区高清不卡 | 精品AV国产一区二区三区 | 婷婷综合激情 | 福利视频入口 | 2018天堂网| 亚洲 欧美 小说 图片 视频 | 午夜性色一区二区三区不卡视频 | 51无码人妻精品1国产 | 亚洲黄色免费在线观看 | 亚洲欧美日韩国产精品第不页 | 免费黄色片网站 | 国产成人AV一区二区在线观看 | 国产99在线播放 | 男女做哎爱过程图片 | 好男人在线观看www社区官网 | 亚洲欧美中文无码蝴蝶 | 中文字幕人乱码中文 | 国产精品 日韩 | 色偷偷资源亚洲在线 | 久久久久久一品道精品免费看 | 日本高清免费不卡在线播放 | 婷婷综合在线观看丁香 | 日本真人做爰高潮全过程 | 欧美日韩看看2015永久免费 | 年轻的老师5理伦片 | 九九这里只精品视在线99 | 最近免费高清版电影在线观看 | 国产成人午夜性a一级毛片 国产成人午夜福在线观看 国产成人无精品久久久久国语 | 国产精品污视频 | 欧美一区二区三区红桃小说 | 特级做A爰片久久毛片A片喷水 | 少妇做爰特黄A片免费看 | 亚洲女同在线 | 色翁荡熄又大又硬又粗又视频软件 | 国产精品天干在线观看 | 人体女人xx | 丁香综合五月 | 97色伦在线| 体育生爽擼又大又粗的雞巴的动漫 | 天天干天天拍 | 欧美又粗又大又爽又色A片 欧美又粗又黄又硬的A片 | 永久看免费bbbbb视频 | 国产情侣真实露脸在线 | 四房播播首页 | 亚洲一区二区师生制服 | 国产精选免费视频 | 精品国产一区二区三区四区勃大卷 | 无线日本视频精品 | 艳妇乳肉豪妇荡乳a亚洲 | 在线观看黄页 | 轻点大JI巴太粗太长了A片 | 天堂资源在线中文在线 | 日本视频a | 久草精品在线 | 五月激情啪啪网 | 日韩黄色毛片 | 一日情 | 国产成人综合网在线观看 | 岛国在线无码免费观 | 免费一级毛片能看的 | 国产大片在线播放 | 日韩av线 | 亚洲欧美综合日韩字幕v在线 | 囯产A片又粗又爽免费视频 囯产丰满肉体A片 | 成片一卡三卡四卡免费网站 | 国产电影一曲二曲三曲 | 久久六热| 欧美日韩一区不卡在线观看 | 丰满女邻居做爰B | 国产chinese在线视频 | 久久欧美人人做人人爱 | 手机在线精品视频 | 欧美xxxx做受视频 | 熟女毛茸茸 | 国产精品视频h | 久久精品黄AA片一区二区三区 | 狠狠综合久久久久综 | 青青草A在在观免费线观看 青青草成人费观看 | 午夜刺激爽爽视频免费观看 | 日本亚洲精品无码区国产电影 | 日韩黄色大全 | 在线看欧美日韩中文字幕 | 最近中文字幕免费手机版 | 黄页网站在线视频免费 | 狠狠 干很很 撸 | 天天插视频 | 久久视频在线视频观看99 | 又黄又爽又无遮挡在线观看免费 | 色婷婷国产精品视频一区二区三区 | 99国精产品一区二区三区A片 | 射精区-区区三区 | 欧美无人区码卡1卡2卡免费 | 国产精品_国产精品_国产精品 | 最新国产福利在线播放 | 亚洲欧美久久久久久久久久爽 | 一级毛片在线视频 | 男人天堂网2024最新地址 | 九九热精品免费 | 狠狠撸下载 | 日韩视频在线精品视频免费观看 | 国产成人精品久久免费动漫 | 欧美 亚洲 日韩 中文2019 | 欧美中文字幕 | 亚洲精品一区二区绿巨人 | 99久久精品免费看国产漫画 | 国产卡一卡二卡3卡4乱码 | 里番本子侵犯肉全彩A片视频一区 | 国产成人黄色 | 日韩精品内射视频免费观看 | 最近免费中文字幕大全免费 | 又色又爽又黄的A片免费看苍井空 | 中文字幕一视频97色伦 | av在线观看网站免费 | 精品免费国产一区二区三区四区五 | 蜜色欲多人AV久久无码 | 中国乱码一二三区别免费 | 99久久精品国产免看国产一区 | 疯狂少妇2做爰完整版播放 疯狂少妇2做爰中文字幕 | 亚洲国产精品久久网午夜 | 亚洲性无码AV久久成人 | 欧美二区三区 | 成人在线激情视频 | 免费看欧美日韩一区二区三区 | 在线看a片| 国产AV一区二区三区日韩 | 精品丰满人妻AV久久久 | 性色无码AV久久蜜臀 | 国产美女被爽到高潮激情免费A片 | 五月丁香 | 中国黄色网址大全 | 国产在线精品视频免费观看 | 女主播在线观看 | 久久ra热在线精品视频 | 欧美亚洲偷图色综合 | 乱H合集系列小说目录男男 乱精品一区字幕二区 | 国产精品福利在线播放 | 91久久亚洲最新一本 | 99re在线这里只有精品 | 亚洲熟少妇在线播放999 | 国产三级在线看 | 视频一区中文字幕日韩专区 | 欧美性xxxx另类 | 日本-区一区二区三区A片 | 无修无遮h韩漫视频网站 | 国产午夜影视大全免费观看 | 黄页在线观看 | 最近中文国语字幕在线播放 | 最近中文字幕完整版2019免费 | 国产麻豆一级在线观看 | 九九影院免费还看视频 | 四房播播色 | 少妇性L交大片W | 69国产精品久久久久久人妻 | 精品玖玖玖视频在线观看 | 日韩一区二区三区精品 | 亚洲人成图片网站 | 六月丁香在线观看 | 韩国理伦片在线观看影片 | 亚洲四房| 成人综合亚洲欧美一区h | 午夜在线观看网站 | 少妇愉情理伦片丰满丰满午夜小说 | 日本三线免费视频观看 | 出轨熟女人妻艳妇 | 蜜臀AV久久国产午夜福利软件 | 国产熟女一区视频在线播放 | 99久久综合九九亚洲 | 青娱国产区在线 | 亚洲人成图片网站 | 午夜日| 99色视频在线观看 | 欧美视频久久 | 活大器粗NP高H一女多夫 | 人人澡人人爽人人精品 | 国内外成人色情视频 | 中国一级毛片特级毛片 | 久久久久99这里有精品10 | 久久AAAA片一区二区 | 欧美在线亚洲 | 影音先锋资源av天堂 | 偷自拍| 国产免费久久精品99re丫y | 久久99国产亚洲精品观看 | 欧洲色网站 | 乖女H文纯肉芊芊 | 欧美多毛的大隂道 | 欧美激情中文字幕一区二区 | 天天做天天爱天天爽综合网 | 久久91精品国产91久久麻豆 | 欧美理伦视频 | 国产精品一区高清在线观看 | 亚洲激情区 | 99ri在线精品视频 | 澡人人澡人澡人人澡天天 | 日本护士xxxxx在线播放 | 国产一级一级一级国产片 | 日韩一区二区超清视频 | 日韩在线一区二区三区视频 | 精品久久一区二区 | 中国毛片在线观看 | 美女裸身大乳图片大全 | 免费日韩中文字幕高清电影 | 国产精品中文字幕在线观看 | 无套内谢少妇毛片A片999 | 日韩三级伦理在线 | 狠狠操狠狠 | 国产黄A片三級三級三級 | 久久精品久久精品 | 久久三级毛片 | 国产成人综合久久精品红 | 性夜a爽黄爽 | 蜜桃日本MV免费观看 | 疯狂揉小泬到失禁高潮在线 | 日韩精品视频美在线精品视频 | 人妻在卧室被老板疯狂进入国产 | h片在线| 抖阴成人版| 国产在线精品一区二区 | 色狠狠AV老熟女 | 色老头色老太aaabbb | 国产成a人亚洲精v品久久网 | 亚洲美女视频高清在线看 | 又色又爽又黄的视频网站免费 | 久久亚洲精品中文字幕三区 | 欧美视频一区二区三区在线观看 | 国产精品99久久99久久久看片 | 中文线码中文高清播放中 | 日韩a级片视频 | 亚欧日韩毛片在线看免费网站 | 久视频在线观看久视频 | 激情内射亚洲一区二区三区爱妻 | 97人视频国产在线观看 | 久久免费看少妇高潮A片小说 | 日韩在线免费观看视频 | 99在线视频观看 | 4hu四虎永久在线影院 | 诱受H嗯啊巨肉各种play | 毛片国产 | 黄色在线免费 | 国产一国产一区秋霞在线观看 | 亚洲人成电影网站在线观看 | 日本三级免费 | www.av视频在线 | 欧美三区在线观看 | 午夜视频网址 | 麻豆天美传媒 | 图片区乱熟图片区小说 | 色情 免费 视频在线观看 | www.99在线| 亚洲天堂男人影院 | 亚洲精品久久无码AV片动漫网站 | 成人AV久久一区二区三区 | 性夜夜春夜夜爽AA片A | 亚洲国产中文字幕在线视频综合 | 99er精品视频 | 国产高潮久久精品AV无码 | 日本高清视频在线无吗 | 国产69精品久久久久乱码免费 | 情深不悔再爱难为 | 色综合啪啪 | 国产免费久久爱久久啪 | 国产精品一区二区三区免费 | 丁香花色情成人网站 | 老师你夹得好紧好爽动态图 | 亚洲AV无码久久精品色欲 | 天堂8资源8在线 | 我和丰满老师疯狂做爰在线观看 | 九一制片厂果冻传媒 | 波多野结衣免费在线播放 | 最新中文字幕在线播放 | 国产区免费在线观看 | 五月婷婷综合在线视频 | 四虎影视在线影院在线观看免费视频 | 亚洲午夜精品A片久久软件 亚洲午夜无码久久久久蜜臀av | 亚洲色无码A片一区二区麻豆 | 韩国eee114网站 | 欧美特黄99久久毛片免费 | 波多野结衣在线视频观看 | 成人无码www免费视频欧美 | 亚洲精品中文字幕无码A片老 | 91碰在线视频| 亚洲 在线 成 人色色 | 老司机福利深夜亚洲入口 | 中文天堂 | 原来的琪琪电影在线看 | 9999在线视频| 免费观看黄色片 | 99精品免视看 | 国产精品大尺度尺度视频 | 最新黄色yy | 欧美日韩一区不卡在线观看 | 最新 国产 精品 精品 视频 | 国产日韩视频 | 少妇我被躁爽到高潮A片 | 免费无码又爽又黄又刺激网站 | 四虎亚洲 | 麻豆果冻传媒2024精品传媒一区下载 | 色天天综合色天天看 | 狠狠色噜噜狠狠狠狠色吗综合 | 日本视频免费高清一本18 | 久久久99精品久久久 | 久久久国产精品免费 | 亚州春色 | 国产精品久久久久影院 | 黑人肉大捧进出全过程动态 | 97在线视频免费观看97 | 中文字幕一级 | 日本一本二本三区免费免费高清 | 最近中文字幕高清免费大全1 | s情网站| 国产又色又爽又黄的视频免费看 | 两根巨龙在她腿间同时进出 | 最好的免费电影网站 | 99国产精品高清一区二区二区 | 国产一区高清视频 | 波多野结衣在线网站 | 久久久久久国产精品免费 | 久久国产天堂福利天堂 | 欧区一欧区二欧区三免费 | 国产午夜永久福利视频在线观看 | 亚洲国产在线精品国自产拍五月 | 欧美在线观看网址 | 久久99精品久久久久久国产越南 |