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

lxfshsvn

12 Oct 2025(atualizado 12/10/2025 às 08h04)

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

Temas

Compartilhe

Alfandega destrói pela primeira vez máquinas de solda irregulares apreendidas no Porto de Santos'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 video slot casinoits 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

'The space is like an instrument' How Notre-Dame found its voice after fire muffled it.txt

Esporte, aventura e ecoturismo: ABC Paulista tem op??es variadas para tirar qualquer pessoa da rotina conhecimento e os entretenimento conhecimento.

GRáFICOS

nos eixos

'We almost didn't do it because it was too dirty' Doris Day and Rock Hudson on Pillow Talk, the risqué romcom.txt

Tarcísio, Zema e Michelle Bolsonaro v?o a ato para pedir anistia na avenida Paulista lazer e os moda conhecimento.

Navegue por temas

TCU pede explica??es sobre potenciais fragilidades no projeto do túnel imerso entre Santos e Guarujá Tarcísio, Zema e Michelle Bolsonaro v?o a ato para pedir anistia na avenida Paulista Silent Hill f' \u00e9 recome\u00e7o promissor para franquia dormente h\u00e1 13 anos Tarifa?o dos EUA impulsiona recorde histórico de movimenta??o de cargas no maior porto do Brasil Casais no div?: como funciona a coterapia, que tem uma dupla de terapeutas e ganha espa?o até entre os n?o monogamicos Porto de Santos usará IA para combater descarte irregular de resíduos Idoso acusado de matar síndico por causa de vaga de estacionamento no interior de SP é condenado a 16 anos de pris?o Poste com espinhos metálicos chama aten??o no Centro de SP; estrutura protege cameras de seguran?a Homem é preso suspeito de matar irm?o em Ariranha Teatro em escolas públicas de Rio Preto orienta crian?as a denunciarem abuso sexual
国产乱妇乱子在线播视频播放网站 | 妺妺窝人体色20242024野大粗 | 亚洲色熟偷拍视频在线 | 在线视频精品一区 | 美国三级在线观看 | 天天色天| 久久人人做人人妻人人玩精品AV | 日韩精品一区二区在线观看 | 国产三级在线看 | 打屁股gay | 91麻精品国产91久久久久 | 国产精品欧美亚洲日本综合 | 国产a级毛片 | 成人性生交A片免费看麻豆 成人性生交大片免费看中国A片 | 一本到午夜92版福利 | 日本高清免费一本在线观看 | 亚洲网站大全 | 中文字幕在线观看不卡 | 精品人妻无码一区二区三区4 | 一级毛片黄色 | 日本中文字幕一区 | 大好深啊把腿开开污文腐 | 草逼网址 | 国产亚洲精品久久久999无毒 | 97色伦图区97色伦综合图区 | 国产色情无码网站视频APP | 欧美ZC00O人与善交 | 黄网站视频在线观看 | 国产亚洲午夜精品a一区二区 | 综合免费一区二区三区 | 艳妇臀荡乳欲伦岳TXT下载 | 欧美黄色小说 | 小黄文纯肉短篇 | 小片网| 国产 有码 无码 电影 | 亚洲欧美制服丝袜一区二区三区 | 久久久久久久亚洲精品 | 国产亚洲精品久久久久久久久动漫 | 工口里番外番全彩无遮挡 | 色偷偷亚洲女人天堂观看欧 | 国产亚洲精品久久久999蜜臀 | 九九国产 | 久久A情A片一区二区三区无码 | 精品国产中文字幕 | 国产精品久久久久久久久99热 | 免费A级毛片无码无遮挡 | 波多野结衣一区二区三区四区 | 影音先锋女人AA鲁色资源 | 午夜在线观看免费影院 | 好紧好湿好爽免费视频在线观看 | 欧洲每年百万吨电子垃圾流向亚非 | 高清性 | 天天干天天拍天天操 | 免费国产成人高清在线网站东京 | 欧美一级在线全免费 | 91亚洲影院| 任你躁 | 久久精品192.168.0.1 | 777奇米四色米奇影院在线播放 | 成人国产欧美大片一区 | 久久这里有精品视频 | 美女张开腿让男生桶爽免费 | 色555| 日韩特级毛片免费观看视频 | 国产精品第3页 | 玖玖爱视频在线观看 | 女人高潮A片春色 | 里番肉工口全彩无遮挡 | 淫行瑜伽室 | 精品无码日本蜜桃麻豆 | 欧美中文字幕在线观看 | 欧美综合色 | 欧美一区二区VA毛片视频 | 伊人2024视频免费观看 | 91免费观看在线网址 | a网站在线观看 | 久久亚洲精品AV成人无码 | 动漫美女的巨乳被揉胸 | 香蕉成熟时 | h污小舞白丝玉足榨精小说 h重口味小说 | 中文在线第一页 | 国产精品第12页 | 丁香婷婷久久大综合 | 91黄色影院| 男人和女人做爽爽视频免费 | 欧美亚洲综合高清在线 | 再深点舒服灬太大了添A片 在办公室里揉护士的胸 | 日本韩国欧美在线观看 | 樱井莉亚快播 | 日本污污视频在线观看 | 国产精品资源在线观看网站 | 日韩极品视频 | 亚洲AV无码偷拍在线观看 | 直接看毛片 | 欧美精品黄页在线观看大全 | 西方毛片 | 2024无码高潮喷水A片 | A级毛片无码久久精品免费 a级毛片在线免费 | 欧美又大又粗AAA片免费看 | 在线岛国片免费观看无码 | 日韩无| 老妇炕上偷汉视频录像 | 日本高清黄色 | 中文字幕一区二区在线播放 | 91网址在线观看 | 无码人妻精品一区二区三区A片 | 日日摸夜夜添无码AVA片 | 五月天国产精品 | a级裸毛片| 浪荡受自我调教纯肉BL | 中文字幕色婷婷在线视频 | 久热99| 国产xxxxxx久色视频在 | 老少做爰XXXXHD老少配 | 国产高清啪啪 | 一级毛片一级黄片 | 女人18毛片a级毛片一区②区 | 欧美日韩一区二区三区免费不卡 | 黄色一级免费看 | 久久精品视频在这里16 | 久久久无码A片观看免费 | AV国産精品毛片一区二区在线 | 国产人成激情视频在线观看 | 舌头伸进去添少妇好爽高潮 | 日本久久久久久久久久 | 国产日产欧产美韩系列影片 | 国产色综合天天综合网 | 亚洲AV成人一区二区三区在线观看 | 手机在线播放av | 欧美午夜寂寞影院安卓列表 | 老湿机费x一分钟影院体验区 | 99在线视频免费观看视频 | 在线免费视频 | 综合玖玖 | 国产乱人偷精品人妻A片 | 99在线在线视频免费视频观看 | 国产春色 | 夜色贵族亚洲贴图区 | 成人亚洲A片V二区三区久久 | 国产激情视频在线观看首页 | 亚洲国产成人久久精品动漫 | 亚洲色妞| 日韩欧美综合在线二区三区 | 2022国产成人精彩在线视频 | jizz在线观看免费高清 | 日韩国产毛片 | 精品无人区麻豆乱码1区2区 | 国产熟妇的荡欲午夜视频 | 亚洲精品无码一区二区卧室 | 精品中字一卡2卡三卡4卡乱码 | 国内一级一级毛片a免费 | 免费无码一区二区三区A片蜜臀 | 69成人| 乱公和我做爽死我视频 | 日韩精品视频免费网址 | 国内免费高清在线观看 | 国产成人在线观看免费网站 | 最新中文字幕在线视频 | 夜夜躁狠狠躁日日躁孕妇 | 国产高清免费视频免费观看 | 成版人性视频app菠萝 | 国产精品扒开腿做爽爽青涩情侣 | 日韩中文字幕视频在线观看 | 亚洲天天在线日亚洲洲精 | 成年男人深夜在线视频 | 国产精品久久久久久久久软件 | 免费播放黄色 | 成人网免费视频 | 亚洲精品久久国产高清小说 | 欧美乱色 | 双性将军粗壮H灌满怀孕 | 尤物天堂 | 狠狠狠色| 日本真人边吃奶边做爽免费视频 | 精品无人区麻豆乱码1区2区 | 国产高清管线免费视频 | 亚洲AV无码乱码国产精品94色 | 成人黄18免费网站 | 国产后式a一视频 | XX性欧美肥妇精品久久久久久 | 欧美在线观看视频一区 | 欧美激情一区二区三区在线 | 亚洲性线免费观看视频成熟 | 亚洲小格式 | 2020亚洲最新视频 | 一本大道AV久久综合 | 在线观看中文字幕码2024不用下载 | 2018最新午夜在线视频 | 深爱激情婷婷 | 久久午夜影院 | 午夜性啪啪A片免费播放 | 精品亚洲国产成人A片在线观看 | 第四色亚洲 | 中国黄色在线观看 | 久久亚洲一级毛片 | 性欧美大战久久久久久久野外黑人 | 中文字幕最新 | 国产精品日本无码久久一老A | 乱人伦小说500篇目录 | 最好看的2018中文在线观看 | 国产人妻精品午夜福利免费不卡 | 日产中文乱码字幕无线观看 | 少妇又色又爽又紧的A片 | 熟女人妻一区二区三区视频 | 女同桌张开腿让我爽了一夜 | 91香蕉视频黄色 | 欧洲美女人 一级毛片 | 色欲精品国产AV久久久 | 国产aav| 日本www.在线中文字幕 | 六月婷婷在线观看 | 羞羞影院午夜男女爽爽影院网站 | 午夜不卡久久精品无码免费 | 久久综合久久鬼色 | 99久久免费精品国产免费高清 | 国产精品久久久久久影院 | 青青草国产线观看 | 国产精品黄在线观看免费软件 | 色咪咪网站 | 五月天色色 | 精品午夜寂寞影院在线观看 | 日日躁夜夜躁狠狠久久AV | 免费高清在线爱做视频 | 欧美黑人在线视频 | 再插深点嗯好大好爽 | 在线观看成人片韩剧 | 中文字幕在线视频免费 | 免费老外的毛片清高 | 国产资源免费观看 | 曰批全过程免费视频在线观看网站 | 综合在线视频精品专区 | 高h全肉图 | 精品人妻少妇一区偷拍视频 | 一本久久综合亚洲鲁鲁五月天 | 亚洲人午夜射精精品日韩 | 夜夜精品视频一区二区 | 日本一本二本三区免费免费高清 | 伊人亚洲综合网色 | 成人免费播放视频777777 | 国产电影一曲二曲三曲 | 免费观看日本视频 | 国产一区二区精品久久91 | 国产免费91 | 四川一级片 | 真实国产乱子伦高清 | 福利区站 | 免费a在线观看 | 日本激情网站 | 成人网zhan | 影音先锋资源av天堂 | 国产成人高清精品免费软件 | 久久毛片免费看一区二区三区 | 日本三级香港三级久久99 | 国自产拍偷拍精品啪啪AV | 午夜影院费试看 | 国产成人综合亚洲 | 色偷偷免费 | 男女羞羞无遮掩视频免费网站 | 手机在线观看视频免费视频 | 亚洲午夜视频在线观看 | 图片区小说区激情春色 | 奇米影视777四色米奇影院 | 在线免费色视频 | 97国产精华最好 | 日本高清色视频www 日本高清色片 | 全黄a免费一级毛片人人爱 全古装一级毛片大全 | 欧美日韩免费播放一区二区 | 双乳被老汉玩弄A级毛片A片小说 | 下流女孩 | 漂亮少妇啪啪高潮大叫小说 | 久久久国产99久久国产久 | 国产女女精品视频久热视频 | 免费国产黄网站在线看品善网 | 日本成熟视频免费视频 | 最近中文字幕视频在线2019 | 免费看日韩A片无码视频软件 | 黄页视频在线观看免费 | 免费国产视频 | 日韩视频导航 | 四房播播成人社区 | 97人妻熟女中文免费视频 | 99久久一区二区精品 | 国产午夜理论片YY8840Y | 国产女人综合久久精品视 | 日本视频一区二区三区 | 抵在 洗手台 挺进 撞击BL | 日本三级带日本三级带黄国产 | 99视频在线看观免费 | 精品无码AV在线观看APP | 在线亚洲自拍 | 中文字幕高清在线中文字幕 | 韩国18禁床震吃胸喝奶视频 | 99久久无码一区人妻A片蜜 | 久久综合影视 | 奇米影视777四色米奇影院 | 四房开心网 | 青草视频在线免费 | 国产精品国产三级在线专区 | 鬼父 qvod | 日本波多野结衣字幕久久 | 成人亚洲A片V二区三区久久 | 亚洲欧美综合日韩字幕v在线 | 欧美人妻一区黄A片 | 全肉整夜不拔男男车文 | 国产精品美女久久久久AV超清 | 黄图男在上女在下 | 国产精品av免费观看 | 国产乱码一卡二卡3卡4卡网站 | 国产女人第一次做爰视频 | 欧美日韩中文字幕免费不卡 | 日韩视频在线精品视频免费观看 | 不卡免费视频 | 成人午夜性A级毛片免费 | 日本98xxxxxxxxx | 久久这里只有精品无码3D | 色欲久久99精品久久久久久AV | 一个人看的www的视频免费 | 久久久无码精品亚洲A片猫咪 | 欧美91精品 | 日本韩国一区二区三区 | 国产乡下三级全黄三级 | 毛片免费网 | 放放肉片动漫网 | 第一成人影院 | 久久精品女人毛片国产 | 99久久精品视香蕉蕉er热资源 | 鲁鲁夜夜| 两个人免费视频在线观看直播 | 99热这里有精品 | 免费在线观看黄网站 | 亚州日本乱码一区二区三区 | 草久热| 精品久久久久久久无码久中文字幕 | 日韩A片无码一区二区五区电影 | 玖玖在线精品 | 老司机免费午夜精品视频 | 伊人亚洲AV久久无码精品 | 97视频免费上传播放 | 免费看黄a级毛片 | 国产精品女| 污污网站免费下载入 | 午夜精品九九九九99蜜桃 | 在线看免费完整欧美电影网站 | 肉肉多色情文肉H | 成人黄色毛片 | 欧美男生射精高潮视频网站 | 四虎在线视频免费观看 | 久久神马影院 | 国产精品久久久久久久久免费 | 亚洲人成一区二区不卡 | AV亚洲AV永久无码精品网 | 麻豆AV久久无码精品久久 | 伊人成人网 | 永久在线视频 | 久久99中文字幕伊人 | 国产亚洲精品久久久久久国模美 | 无码免费一区二区三区日本A片 | 欧美の无码国产の无码影院 | 18禁免费裸乳裸体视频网站 | 九九热精品免费 | 欧美高清在线视频一区二区 | 日韩经典欧美精品一区 | 色久网| 中文字幕一区波多野结衣 | 亚洲偷怕| 狠狠色噜噜狠狠狠狠色综合网 | 蜜桃精品免费久久久久影院 | 亚洲A片国产AV一区无码 | 99久久精品视香蕉蕉er热资源 | 91精品婷婷国产综合久久8 | 人妻熟女制服师生中文字幕 | 小姐姐在线播放 | 欧美一级片免费观看 | 天天干天天澡 | 国产精品顶级A片无码久久久 | 最近更新中文字幕大全免费 | 亚洲v天堂v手机在线观看 | 2017av无码免费无线播 | 成 人 a v黄 色 | 女人被添全过程A片试看 | 亚洲毛茸茸| 国产在线观看精品一区二区三区91 | 一区二区三区无码被窝影院 | 三级高清| 波多野结衣全部系列在线观看 | 老太婆xxx | 综合一区无套内射中文字幕 | 人偶新娘 | 免费三级网 | 同涩限制分级第1页 | 中国人xxxxbbbb国产 | 手机在线日本亚洲欧美视频 | 欧美一区二区三区激情视频 | 亚洲精品久久久久中文字幕二区 | 制服 丝袜 亚洲 中文 综合 | 精品久久久久久中文字幕欧美 | av狼 地址| 韩国在线无码中文字幕 | 美女裸露胸部100%无遮挡 | 久久精品www | 久久久无码精品亚洲A片0000 | 闫凤娇bt种子 | 久久精品网站免费观看 | 忘忧草在线影院www日本 | 搞黄网站免费观看 | 一个人看的视频www在线观看免费 | 免费国产之a视频 | 日日撸.com | 成人色网| 日本一区二区三区欧美在线观看 | 成AV人片一区二区三区久久 | 干一干| 国产片入口 | 欧美深深色噜噜狠狠yyy | 人妻换人妻互换A片爽电影 人妻精品国产一区二区 | 极品少妇高潮啪啪AV无码 | 人人撸狠狠碰 | 中文日产无乱码AV在线观 | 狠狠干综合 | 中字幕久久久人妻熟女 | 亚洲 综合 欧美在线 热 | 久久久久国产亚洲日本 | 香蕉伊人伊在线播放av | 成人五夜天 | 制服丝袜快播 | 久久只有这里有精品4 | 亚洲AV久久无码精品影视 | 欧美激情一区二区三区中文字幕 | 欧美孕妇乱大交xxxx | 成人人观看的免费毛片 | 青青草久草视频 | 艳妇臀荡乳欲伦交换AV1 | 欧美女同在线 | 啊灬啊别停灬用力啊免费视频 | 张一苇扮演者 | 国模少妇一区二区三区A片 国内精品A片XXX久久久 | A片粗大的内捧猛烈进出AV | 亚洲女人网| 精品交小说合集500篇 | 99精品噜噜噜成人AV | 美妇在家被强干小说 | 秋霞成人午夜鲁丝一区二区三区 | 日本一二三区在线视频 | 日本一卡二卡三四卡在线观看免费视频 | 国产又色又爽又免费的刺激软件 | 我要爱久久影视 | 久久久无码AV精品亚洲网站 | 日韩免费高清一级毛片久久 | 九九精品免费观看在线 | 影音先锋亚洲AV少妇熟女 | 天天做天天爱天天操 | 婷婷综合亚洲爱久久 | 大尺度很黄很肉的小说 | 最新欧美一级视频 | 精品婷婷乱码久久久久久日日 | 精品欧美一区二区三区四区 | 啊灬啊别停灬用力深视频 | 亚洲人成综合在线播放 | 小小女视频网站色琼网站 | 一区二区三区内射美女毛片 | 99成人| 欧美乱xxxxxxxxx| H狠狠躁死你H视频A片 | 在线观看免费a∨网站 | 久久精品站 | 中文字字幕在线中文乱码2024 | 99麻豆精品国产人妻无码 | 国产99精品一区二区三区免费 | 久久精品av| 天堂√在线官网 | 中国亚州女人69内射少妇 | 污污的漫画小说羞羞漫画 | 国产精品免费拍拍1000部 | 一区二区网站 | 国产亚洲精品久久久久久老妇 | 人禽无码做爰在线观看 | 精品性影院一区二区三区内射 | www.日韩.com | 亚洲香蕉影院 | 在线综合 亚洲 欧美 日韩 | 欧美激情综合五月色丁香 | 中文字幕在线不卡日本v二区 | 亚洲综合色婷婷六月丁香 | 欧美色中色 | 黑人大JI巴做爰呻吟视频 | 免费国产黄网站在线观看动图 | 精品蜜臀AV在线天堂 | 奇米影视四色影音先锋 | 色老导航| 亚洲精品久久一区二区三区四区 | 蝌蚪自拍自窝 | 美国一级毛片免费看 | 国产在线视频分类精品 | 免费e夜情网站 | 婷婷人人爽人人爽人人A片 婷婷色情 | 四虎精品成人影院在线观看 | 日本少妇BBW丰满做爰 | 中文日韩亚洲欧美制服 | 久久精品人人做人人爽97 | 狠狠干狠狠操视频 | 精品国产综合成人亚洲区 | 2024夜夜干天天天爽 | 亚洲色图13p| 欧美hd性| 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 九操网| 搞av网| 日本午夜影院 | 无码成人亚洲AV片 | 色噜噜狠狠色综无码久久合欧美 | 国产人碰人摸人爱免费视频 | 男人站影音先锋男人站 | 伊人在综合 | 国内揄拍国产精品人妻电影 | 一夲道DVD高清无码 一边摸一边叫床一边爽 | 国产做A爰片久久毛片A片软件 | 么么哒电影大全免费观看 | 亚洲欧美一区二区三区麻豆 | 91视频免费网址 | 四房开心网 | 亚洲精品久久无码AV片亚洲 | 波多野结衣中文在线播放 | 被强J高H纯肉公交车啊 | 亚洲天堂网在线观看视频 | 国产精品无卡无在线播放 | 中文字幕免费在线播放 | 国产SUV精二区九色 国产SUV精二区69 | 亚洲视频久热九色视频 | 成人精品视频99在线观看免费 | 欧美成人大色情大片破碎的拥抱 | 日本中文字幕有码在线视频 | 亚洲第一伊人 | 日日夜夜伊人 | 九月丁香婷婷亚洲综合色 | 免费大片国产在线观看下载 | 亚洲精品福利一区二区在线观看 | 窝窝午夜看片国产精品人体宴 | 丰满年轻岳欲乱中文字幕电视 | 西西人体全身祼体图片 | 国产日韩精品一区二区三区在线 | 男Ji大巴进入女人的视频小说 | 免费一级特黄特色大片在线观看 | 小黄鸭app下载安装无限看丝瓜安卓苏州 | 黄色毛片视频校园交易 | 一级做a爱 一区 | 中文字幕国产视频 | 无码中文字幕无码一区日本 | 五月婷丁香 | 国产亚洲精品久久无码小说 | 女医学护士一级毛片 | 少妇厨房愉情理9伦片视频 少妇大叫太大太粗太爽了A片 | 花房姑娘HD免费高清版视频 | 69精品在线 | 亚洲日本在线免费观看 | 在线观看v片免费视频 | 国产精品人妻熟女a8198v久 | 国产人澡人澡澡澡人碰视频 | 亚洲另类第一页 | 在线毛片一区二区不卡视频 | 亚洲成人原创 | 国产午夜视频在线观看 | 中文字幕亚洲男人的天堂网络 | 2019精品国产品在线18年网 | 特级做A爰片毛片免费看108 | 99亚洲精品卡2卡三卡4卡2卡 | 久草在线新免久费观看视频 | 香港三级日本三级韩国三级韩 | 丁香花五月| 肉文辣文h文 | A片扒开双腿进入做视频 | 精品国产a | 一日本道伊人久久综合影 | 女帝娜美罗宾群啪比赛里番acg | 欧美国产日本高清不卡 | 顶级少妇做爰视频在线观 | 亚洲精品中文字幕无码A片老网站 | 最新99热 | 欧美又粗又长A片XXOO在线看 | 免费一级淫片aaa片毛片a级 | 国产精品久久久久久久久免费 | 日韩三级影院 | 97色伦在线观看 | 亚洲三级黄色 | 2024四虎永久在线观看 | 无码人妻丰满熟妇A片护士M | 精品AV综合一区二区三区 | 家庭教师 波多野结衣 | 日本成人高清 | 精品欧美成人无码专区毛片视频 | 成人h片| 最近中文字幕免费手机版 | 国产又粗又黄又爽的A片小说 | 果冻传媒91制片厂 | 五月婷婷深爱 | 久久久这里只有免费精品2024 | 免费精品一区二区三区A片在线 | 国产中文字幕在线播放 | 精品国产乱码久久久人妻 | 99久9在线视频 | 做a爱片的过程图片| 快播官网首页 | 免费黄色电影观看 | 久久天天躁狠狠躁夜夜avapp | 黄页网站视频在线观看 | 又长又粗又硬宝贝想要爽 | 国产99久久精品 | 免费二区 | 天天操综合视频 | 日本免费v片一二三区 | 国内美女自拍在线视频观看 | 日韩免费高清大片在线 | 九九这里只精品视在线99 | 无套和妇女做内谢 | 午夜一区二区在线观看 | 欧美一区二区三区红桃小说 | 国产精品一级视频 | 国产精品三级 | 午夜精品影院 | 国产三级观看久久 | 一本久 | 青青草免费国产线观720 | 四房婷婷 | 最新中文乱码字字幕在线 | 国产亚洲欧洲人人网 | 嗯好舒服嗯好猛嗯好大不要 | 国产精品扒开腿做爽爽爽A片软件 | 亚洲日本韩国 | 中文无码有码亚洲 欧美 | 中文字幕三级在线不卡 | 三级全黄APP播放 | 欧美日本一道道一区二区三 | 人禽伦交小说 | 国产午夜精品AV一区二区 | 欧美深深色噜噜狠狠yyy | 2022最新a精品视频在线观看 | 五月婷婷六月爱 | 草色噜噜噜AV在线观看香蕉 | 亚洲毛茸茸 | 开心久久婷婷综合中文字幕 | 好大好深我高潮了A片 | 欧美一区二区三区成人A片 欧美一性一交一伦一A片视频 | 2024精品国色卡一卡二 | 新版天堂中文资源8在线 | 欧美在线一级视频 | 波多野结衣亚洲 | 成人免费久久精品国产片久久影院 | 图片区乱熟图片区小说 | 美国毛片免费看 | 青草青草久热精品观看 | 四虎亚洲精品高清在线观看 | 美女把小内内脱个精光的照片 | AV国产在线精品国自产在线 | 中文字幕视频在线免费观看 | 国产国产人免费人成成免视频 | 亚洲不卡高清免v无码屋 | 色爱区综合激月婷婷激情五月 | 日本最色网站 | 日本无码成人片在线观看波多 | 99热成人精品国产免国语的 | 中文字幕日本一区 | 在线看午夜福利片 | 亚洲精品卡2卡三卡4卡2卡乱码 | 欧美手机手机在线视频一区 | 猛烈顶弄H禁欲老师双性年下 | 日本高清在线一区 | 人妻丰满熟妇V无码区A片免费看 | 欧美三级A做爰在线观看 | 粗大挺进朋友人妻身体里电影 | 欧美一区二区三区精品 | 九九视频精品全部免费播放 | 再次出发 电影 | 久久视精品 | 国产精品综合一区二区 | 麻豆AV久久无码精品九九 | 最近韩国日本免费高清观看直播 | 丁香婷婷综合激情五月色 | 日本久久久久久级做爰片 | 黄色网址视频在线播放 | 越南一级毛片免费 | 九九九热精品 | 乱码一二三入区口 | 99久久99久久精品免费看子伦 | 综合无码色情一区二区 | 国产一卡2卡3卡4卡公司 | 欧美三级a | 免费啪视频观看视频 | 91人人看| 国产SUV精品一区二区69 | 尤物永久网站 | 在线 亚洲 欧美 专区看片 | 波多野结衣在线观看视频 | 啊快进去好深用力啊使劲 | 成人片在线观看地址KK4444 | 网友自拍视频悠悠在线 | 欧美激情bbbbbxxxxⅹ | 国产成人mv免费视频 | 亚洲一区二区师生制服 | 亚洲精品无码高潮喷水A片软 | 欧美大肥婆大肥BBBBB | 欧美精品一区二区黄A片 | 国产麻豆精品久久一二三 | 国产真人毛片一级视频 | 天堂在线www在线资源 | 久久国产精品一国产精品金尊 | 性色aⅴ在线观看swag | 国产精品高清视亚洲一区二区 | 99热手机在线观看 | 国产精品人妻无码99999 | 这里只有精品久久 | 欧美一区二区三区免费 | 无套进入无码A片 | 一本久道久综合久久鬼色 | 樱花草在线观看播放视频www | 欧美深夜福利 | 美女裸身照(无内衣)动态图 | 日本无吗无卡v清免费网站 日本午夜成年在线网站 | 久久精品一区二区免费看 | 冬月かえで | 成人做爰69片免费看网站 | 中文三 级 黄 色 片 | 国产人妻精品无码AV在线浪潮 | 三级在线观看中文字幕完整版 | 秋霞电影网理论片韩国在线观看 | 男人看片网址 | 麻豆文化传媒一区 | 中国成人免费视频 | 免费观看a毛片一区二区不卡 | cao视频| 亚洲午夜精品A片久久W | 一级毛片免费在线 | z o oz o o人与猪 | 国产农村熟妇videos | 免费观看又色又爽又黄的校园 | 日本高清一区二区三区无码 | 拍裸戏时被C了H辣文np | freesex欧美喷水 | 黄色在线视频播放 | 大山里真实刮伦小说 | 国产精品久久久久久人妻香蕉 | 最近韩国日本免费高清观看 | 伊人久久精品亚洲午夜 | 精品国产中文字幕 | 日韩伦理电影在线免费观看 | 亚洲AV无码久久精品色欲 | a级毛片黄 | 免费黄色网址入口 | 性生生活色欲片性按摩 | 欧美1区2区3区 | 麻豆AV一区二区三区 | 少妇被下春药玩弄A片 | 九九久久精品国产免费看小说 | 日韩欧美一区二区三区免费观看 | 国产精品爽爽va在线观看无码 | 久久午夜伦理 | 夜夜艹天天干 | WWW国产精品内射老熟女 | 成人网在线观看 | 亚洲最大色情网55101 | 欧美色丁香 | 亚洲不卡影院 | 亚洲成人99 | 色网站在线观看 | 男女无遮挡猛进猛出免费观看视频 | 免费欧洲毛片a级视频 | 香蕉久久av一区二区三区 | 成人在线视频免费 | 日本免费人成黄页网观看视频 | 欧美日韩精品一区二区三区高清视频 | 青丝影院免费看 | 国产精品久久久久久吹潮 | 性做久久久久久坡多野结衣 | 国产97人妻人人做人碰人人爽 | 视频色www永久免费 视频黄页在线观看 | 丁香五月激情缘综合区 | 波多野结衣一区二区三区在线观看 | 日韩在线毛片 | 国产JIZZJIZZ免费看 | 亚洲国产品综合人成综合网站 | 美女黄色片网站 | 在线观看中文字幕国产 | 日韩高清专区 | 艺校水嫩漂亮得2美女 | 69国产精品人妻无码免费 | 日韩精品系列 | 强辱丰满人妻HD中文字幕 | 国产无遮挡色视频免费观看性色 | 一本大道视频大全在线 | 免费被黄网站在观看 | 中文字幕欧美在线观看 | 欧美日韩在线视频观看 | 四虎欧美在线观看免费 | 性欧美精品xxxx | 色欲AV在线观看国产精品 | 重返20岁迅雷下载 | 国产成人久久久精品毛片 | 免费国产精品视频在线 | 黄网站在线观看视频 | 上色天天综合网 | 久久久久久亚洲精品不卡 |