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

moda

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

nqu

11 Oct 2025(atualizado 11/10/2025 às 01h01)

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

Temas

Compartilhe

BBCcom_Content_Index_for_May_22_2021.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 bet365 legális magyarországonits 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

'We bought our first home with another couple'.txt

BBCcom_Content_Index_for_May_4_2018.txt entretenimento e os ponto quente enciclopédia.

GRáFICOS

nos eixos

'A spikiness to Thomas Tuchel as England manager' Rory Smith Sport.txt

BBCcom_Content_Index_for_May_3_2020.txt lazer e os abrangente moda.

Navegue por temas

BBCcom_Content_Index_for_May_2_2018.txt BBCcom_Content_Index_for_May_23_2022.txt BBCcom_Content_Index_for_May_4_2022.txt BBCcom_Content_Index_for_May_27_2023.txt BBCcom_Content_Index_for_May_22_2023.txt BBCcom_Content_Index_for_May_25_2018.txt BBCcom_Content_Index_for_May_26_2018.txt BBCcom_Content_Index_for_May_23_2024.txt BBCcom_Content_Index_for_May_27_2018.txt BBCcom_Content_Index_for_May_22_2018.txt
性生a| 99精品全国免费7观看视频 | 国产精品久免费的黄网站 | 五月天丁香色 | 黄在线网站 | 性欧美高清精品video | 日日碰狠狠躁久久躁AV | 真人做爰30分钟视频大全 | 五月综合色婷婷影院在线观看 | 色播四房间 | 国产性生大片免费观看性 | 97色伦图片 | 教官嗯给我快添嗯哪啊视频 | 国产乱码一卡二卡3卡4卡网站 | 夂久亚州精华国产精华华液 | 婷婷亚洲综合小说图片 | 国产熟妇无码一区二 | 永久免费在线看 | 性欧美网站 | 欧美一级免费看 | 在线视频一区二区三区四区 | 国产人妻人伦精品1国产盗摄 | 成年男人深夜在线视频 | 亚洲精品一区二区午夜无码 | 刺激一区仑乱 | 久久久久久亚洲精品影院 | 久草在线新免久费观看视频 | 亚洲 欧美 影音先锋 | 久久国产精品99国产精 | 欧美xxxx做受欧美精品 | 国产成人影视 | 美景之屋4在线未删减免费 美景之屋4在线 | 久综合色| 夜夜穞天天穞狠狠穞AV美女按摩 | 忘忧草社区WWW日本高清图片 | 国产极品精频在线观看 | 亚洲AV成人精品网站在线播放 | 柠檬福利精品视频导航 | 久久久久国产精品免费免费 | 一边摸一边桶一边脱免费 | 欧美成人免费做真爱A片 | 伊在人线香蕉观看最新2018 | 色avv| 欧美xxxx做受欧美 | 欧美人妻WWW无码国产黄漫 | 一区二区三区毛AAAA片特级 | 水蜜桃传媒科技有限公司网站 | 精品国产青草久久久久福利 | 国产片MV在线观看 | 亚洲精品久久无码午夜小说 | 国产资源在线免费观看 | 国产综合久久久久久 | 国产福利一区二区三区在线观看 | 在线看a片 | 99热在线精品观看 | 精品成人 | 国产成人www免费人成看片 | 天天爱综合网 | 国产区免费在线观看 | 欧美视频www| LINODEIPHONE孕妇视频欢迎你 | 4日本私人vps生活大片 | 亚洲国产精品无码成人A片小说 | 一级特黄国产高清毛片97看片 | 国产高潮A片羞羞视频涩涩 国产高潮抽搐在线观看 | 日本亚洲天堂网 | 老汉网站 | 日韩欧美三级在线 | 国产欧洲野花视频WWW | 高清无码午夜福利在线观看 | 老湿影院视色情下 | 午夜精品一区二区三区免费视频 | 好硬啊进得太深了A片无码视频 | 日本无码成人片在线观看波多 | 日本一区色情无码视频在线观看 | 污视频app网址丝瓜视频 | 国产精品久久久久久久hd | 向井杏 | 色尼玛亚洲综合 | 求av网站 | 家庭教师波多野吉衣 | 啊插得好深高H | 精品国产3p一区二区三区 | 日本特爽特黄特刺激大片 | 99热成人精品免费久久 | 人人澡人人干 | 草久在线视频 | 99久久就热视频精品草 | 亚洲欧美中文日韩在线v日本 | 狠狠色噜噜狠狠狠狠2021天天 | 久久院线| 亚洲一区二区三区无码中文A片 | 午夜深夜福利网址 | 亚1州区2区3区4区产品乱码2021 | 中文字幕在线视频网站 | 777爽死你无码一区二区 | 免费网站在线观看国产v片 免费网站色 | 久操这里只有精品 | 亚洲 欧美精品 | 琪琪电影网午夜理论片717西瓜 | 天天操天天干天天拍 | 久久国产高清波多野结衣 | 影音先锋成人无码影院 | 99ri视频 | 午夜成人在线视频 | 欧美午夜福利1000集2019年 | 亚洲综合国产在不卡在线 | 扒开粉嫩小泬舌头伸进去视频 | 精品中字一卡2卡三卡4卡乱码 | 亚洲精品卡一卡三卡四卡乱码 | 国产成人综合在线 | 国产又黄又粗又爽又色的视频软件 | 把腿张开老子臊烂你多P视频软件 | 国产精品自在拍在线播放 | 极品少妇粉嫩小泬啪啪小说 | 丁香婷婷综合网 | 伊人久久大香线蕉亚洲 | 爱豆传媒在线观看视频 | 黄色一区二区三区 | 天天干天天插天天操 | 日韩精品第一区 | 成人国产精品 | 国产精品AV无码免费播放 | 国产免费久久精品久久久 | 在线播放午夜理论片 | 国产色婷婷精品综合在线观看 | 婷婷四房色播 | 婷婷开心色四房播播 | 波多野结衣中文字幕在线视频 | 纯h超级大尺度小黄文 | 99国内偷揿国产精品人妻 | 99久久精品国产亚洲 | 91国内视频 | 韩国视频在线观看高h | 98国产精品人妻无码免费 | 狼人香蕉网 | 久久99精品久久久久久园产越南 | 久久久国产99久久国产久 | 亚洲一区二区三区在线播放 | 国色天乡官网 | 2020国产成人精品免费视频 | 午夜久久网| aaa一区二区三区 | 波多中文字幕 | 国产成人黄网在线免 | 日韩经典午夜福利发布 | 隔着内裤进去了H | 日本一卡二卡三卡四卡免费观 | 午夜不卡久久精品无码免费 | 亚洲精品乱码久久久久蜜桃 | 国产永久在线观看 | 人人揉人人人人澡人人 | 国产网站黄 | 国产午夜一级鲁丝片 | 久久国产精品人妻中文 | 久久这里只有是精品23 | 四虎影视出品必属精品 | 精品影片在线观看的网站 | 久久精品亚洲日本波多野结衣 | 思思久久好好热精品国产 | 成人网站免费大全日韩国产 | 亚洲午夜精品久久久久久抢 | 亚洲图片日本视频免费 | 国产农村妇女精品一二区 | 亚洲bt成人| 日韩精品网址 | 加勒比精品 | 国产 日韩 中文字幕 制服 | 六月丁香婷婷激情 | 国产在线拍揄自揄视精品 | 日韩精品视频在线免费观看 | 欧美bbw极品另类 | 中文天堂www资源 | 2020亚洲 欧美 国产 日韩 | 偷偷狠狠的日日2020 | 美日韩在线视频 | 欧美成人免费做真爱A片 | 久操app| 年轻丰满的继牳5伦A片 | 夜色网 | 亚洲AV久久婷婷蜜臀无码不卡 | 国产自啪啪 | 91网站免费看| 宅男噜噜噜一区二区三区 | 三级中国免费的 | 四川一级片| 国产真人免费无码AV在线观看 | 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 | jizz 欧美巨大 | 色综合精品久久久久久久 | 日韩伦理在线 | 欧美一区精品 | 快播5.0.80完美版 | 久久国产精品一区免费下载 | 亚洲国产精品嫩草影院在线观看 | 99久久无码一区人妻A片蜜臀 | 九九视频精品全部免费播放 | 黑人狂躁日本妞无码视WWW | 92kyy福利合集 | 色爱综合区五月小说 | 免费播放一区二区三区 | 国产成人黄色 | 亚洲精品一区二区三区麻豆 | 四房播播 快播 | 日本一卡二卡3卡四卡在线新区 | 久久久久久综合 | 亚洲性线免费观看视频成熟 | 性生a | 午夜福利视频集合1000 92 | 亚洲精品黄 | 国产精品99精品久久免费 | 国产JIZZJIZZ免费看 | 成人人观看的免费毛片 | 亚洲一个色 | 欧美特级午夜一区二区三区 | 色综合小说天天综合网 | 操日韩| 久热这里只有精品6 | 日韩波多野结衣 | 天天干天天骑 | 青青草免费手机在线视频亚洲视频 | 三区综合是哪三区 | 最近高清中文在线观看国语字幕7 | 乱理片 最新乱理片2024 | 国产人妻人伦精品1国产 | 最新国自产拍短视频 | 激情偷乱人成视频在线观看 | 最近中文字幕视频在线2019 | 青青草成人费观看 | 亚洲精品午夜视频 | 玖玖在线精品 | caoporm国产精品视频免费 | 成人五月网 | 成人视品| 欧美xxxx色视频在线观看 | xxxx免费| 可以在线看av的网站 | 日产乱码卡1卡2卡三免费 | 91在线免费观看 | 亚洲精品久久久无码一区二区 | 亚洲一卡二新区乱码绿踪林 | 国产第一页在线视频 | 免费观看又色又爽又黄的忠诚 | 黄网址在线观看 | 国产三级在线 | 苍井空毛片精品久久久 | 亚洲乱妇老熟女爽到高潮的片 | 一起探恋爱综艺在线观看第七期 | 亚洲人大战欧洲人A片 | 欧美性狂猛bbbbbbxxxxxx | 免费无码毛片一区二区A片 免费无码精品黄AV电影 | 国产欧美国日产在线播放 | 古装一级无遮当一级毛片 | 色狠狠色综合吹潮 | 国产精品毛片无码 | 亚洲精品无码一区二区色戒 | 亚洲狼人综合 | 四房播播qvod | 乱精品一区字幕二区 | 免费三级网 | 国产成久久免费精品AV片天堂 | 黑人狂躁日本少妇在线观 | 日本a在线免费观看 | 全身无赤裸裸美女 | 国产一区二区精品视频 | 国产精品国产精品国产三级普 | 免费的黄网站 | 中文字幕一区在线观看 | 日韩精品一卡2卡3卡4卡5卡 | 欧美一区二区三区精品 | 色四房播播| 日产精品卡2卡三卡乱码网站 | 国产做爰又粗又大免费看 | 色黄网站大全 | 久草视频在线资源 | 日本人伦一区二区三区 | 国产 亚洲 网友自拍 | 亚洲精品国产一区二区精华液 | 中国国产一级毛片视频 | 免费的日本网站 | 美国巨根 | 伦理电影网站 | 亚洲国产成人精品激情 | 天天插天天干 | 王梦溪 bt | 国产美女一级做a视频免费 国产美女主播一级成人毛片 | 狠狠色伊人亚洲综合网站l 狠狠色伊人亚洲综合第8页 | 国产乱码精品一品二品 | 网站免费满18成年在线观看 | 婷婷免费视频 | 欧美视频在线观看免费最新 | 999av视频| 97av在线| 精品久久伊人 | 亚洲a视频在线 | 东流影院百度影音 | 97精品国产高清在线看入口 | 免费激情网址 | 中文字幕AV久久激情亚洲精品 | 2022精品国产 | 97高清| 播播成人 | 色婷婷色综合缴情网站 | 色老头成人免费综合视频 | 久久久无码精品一区二区三区 | 日本免费在线一区 | 国产人妻精品无码AV在线浪潮 | 色呦呦网站 | 国产精品无码免费专区午夜小说 | 欧美视频在线观看网站 | 日韩毛片高清免费 | 无码成人性爽XO视频在线观看 | 日本无码人妻丰满熟妇A片 日本无码人妻丰满熟妇5G影院 | 快点好深好爽受不了了 | 亚洲天堂网站在线 | 日韩精品专区 | 级毛片久久久毛片精品毛片 | 一级aaaaaa毛片免费 | 国内揄拍国产精品人妻在线A片 | www日韩 | 一本一道波多野结衣一区二区 | 亚洲欧美一区二区三区久本道 | 免费观看色 | 日韩不卡在线播放 | 日韩在线高清视频 | 国产国语 毛片高清视频 | 久久免费看少妇高潮A片特无毒 | 亚洲伊人久久网 | 亚洲欧洲精品A片久久99 | 人人干97 | 一个免费看片高清在线 | 狠狠操夜夜 | 91极品尤物 | 性香港xxxxx免费视频播放 | 消息称老熟妇乱视频一区二区 | 男女做爰猛烈啪啪吃奶真人免费 | 一区二区免费播放 | 亚洲我射 | 嫩草伊人久久精品少妇AV网站 | av线上免费观看 | 五岳影视院线 | 国产a国产片国产 | 最美情侣中文第4季 | 欧美大色 | 在线观看黄网站 | 操美女在线播放 | 国产精品 制服中字 在线视频 | 日韩国产午夜一区二区三区 | 久热精品免费 | 天堂+在线最新版官网 | 三级网站在线播放 | 亚洲成a人v欧美综合天堂下载 | 欧美日韩中文字幕免费不卡 | 国产小视频在线高清播放 | 国产综合在线播放 | 异族tube欧美疯狂xxx | 亚洲欧美日韩中文在线制服 | 四房qvod | 国产在线一区二区三区四区 | 性XXXX18精品A片一区二区 | 日日鲁鲁鲁夜夜爽爽狠狠视频97 | 久久久久久亚洲精品不卡 | 特级毛片 | 中国一级全黄的免费观看 | 成人精品视频99在线观看免费 | 无码日本精品一区二区片 | 伊人久久五月丁婷婷 | 秋霞电影网院午夜伦不卡A片 | 又硬又粗进去好爽A片春色视频 | 国产SUV精品一区二区883 | 娇妻的闺蜜下面好紧 | 欧美日韩中文字幕在线手机版本 | 日本乱妇18日本乱妇18p | 插骚妇好爽好骚 | 欧美日韩精品一区二区三区 | 二级片名| 人人爽久久涩噜噜噜AV | 色猫咪AV在线网址 | 国产AV一区二区熟女人妻 | 国产乱码卡二卡三卡老狼在线观看 | 色你妹gif动态图片 色哦色哦哦色天天综合 | 国产ts在线观看 | 久久精品久久久久久久久人 | 宅女午夜福利免费视频 | 男男GV白嫩小受GV在线播放 | 五月丁香啪啪丁香花 | 免费观看又色又爽又黄的忠诚 | 亚洲国产成人精品一区91 | 国产高清日韩 | 精品一区二区三区AV天堂 | 亚洲欧美精品无码大片在线观看 | 人人电影 | 91频视| 亚洲精品国产成人一区二区 | 午夜宅宅伦电影网 | xxx日本在线| 亚洲性影院| 国产做爰完整版在线观看 | 亚洲国产综合另类视频 | 亚洲欧美日韩精品久久 | 97蜜桃小说及图片 | 黑人巨茎大战欧美白妇免费 | 亚洲欧美日韩视频一区 | 狠狠色综合色综合网络 | 日日夜人人澡人人澡人人看免 | 久草这里只有精品 | 天天操天天舔天天射 | 中文日本在线 | 公和我做爽死我了A片口述 公交车上无耻挖阴 | 最近大片 | 你懂的网址免费国产 | 韩国日本三级三级人 | 999伊人| 欲妇荡岳丰满少妇A片24小时 | 国产精品久久丫毛片A片软件 | 无码又爽又刺激A片涩涩动漫软件 | 91麻精品国产91久久久久 | 国产精品波多野结衣 | 床戏吻戏裸戏视频超长 | 亚洲中文在线无码永久色情 | 柳文文被肉干高H潮文不断 擼一擼AV网站 | 性欧美巨大hd | 久久国产精品只做精品 | 日本a在线免费观看 | 国产一级a毛片 | blacked欧美黑粗硬大free beeg -日本 beeg.黑人 | 无码AV动漫精品一区二区免费 | 善良的小峓子在线高清免费观看完整中文版 | 曰批全过程免费视频在线观看草莓 | 国产69精品久久久久乱码免费 | 成人性生交A片免费观看 | 少妇人妻偷人精品无码视频新浪 | 亚洲性久久 | 啊灬啊别停灬用力啊动态图 | 综合在线视频精品专区 | 十八种看黄禁用软件APP入口 | 国产电影一曲二曲三曲 | 波多野结衣在线影视 | 欧美狠狠| 青青草在现线观看免费 | 按摩高潮A片一区二区三区 澳门永久av免费网站 | 97国产在线视频 | 色网视频在线观看 | np肉文一女多男 | 和日本免费不卡在线v | 91精品国产免费 | 九九热精品免费 | 日本高清专区一区二无线 | 在线v片| 狠狠干狠狠操在线视频 | 国产偷拍一极视频 | 被公侵犯肉体中文字幕电影 | 日本真人做爰高潮全过程 | 亚洲欧美日本久久综合网站 | 久草在线精品ac | 影音先锋av电影 | 中文字幕国产日韩 | 少妇大叫太大太粗太爽了A片 | 国精产品一二二区视早餐有限公司 | 日本高清免费观看高清电影 | 精品AV亚洲乱码一区二区 | 国产在线精彩视频 | 免费高清在线观看a网站 | 欧美成人亚洲国产精品 | 国产又粗又猛又爽又黄的A片小说 | 久久久无码精品亚洲A片软件 | 欧美www网站| 色址| 欧美在线网址 | 人妻仑乱A级毛片免费看 | 91视频色| 影音先锋av男人色情 | 国产a国产 | 欧美日b | 免费看欧美换爱交换乱理伦片 | 成人在线免费观看视频 | 三级黃色男人的天堂 | 伊人网站 | 久久视频在线视频观看: | 亚洲精品久久国产高清小说 | 草莓视频app深夜福利 | 高清乱码一区二区三区 | 樱花草无码专区日本 | 日日噜噜夜夜狠狠视频欧美人 | 青青青国产免费线在 | 色妞网站| 性做爰AAA片免费看大尺度 | 免费又色又爽又黄的视频 | 男女摸下面刺激免费视频软件 | 日韩高清成人 | 快穿女主有名器的H纯肉黄暴拉文 | 久久精品最新免费国产成人 | 波多野结衣免费在线 | 饥渴的少妇黑人在线观看 | 四川丰满护士毛茸茸 | 又色又爽又黄的A片免费看苍井空 | 日本三级本道在线播放 | 天天做天天干 | 日韩黄色在线 | 久久亚洲精品高潮综合色A片小说 | 国产精品伦理久久久久 | 男人站影音先锋男人站 | 国产精品第一国产综合精品99 | 久久精品国产精品亚洲艾 | 黄色免费看网站 | 日本午夜小视频 | 亚洲永久免费视频网站 | 一本色道久久88综合日韩精品 | 嫩草国产福利视频一区二区 | 亚洲精品综合在线影院 | 91精品国产免费久久久久久 | 听党话跟党走始终是共青团坚守的 | 亚在线观看免费视频入口 | 乱码一卡二卡新区永久入口 | 99国产成人精品2021 | 最美白嫩的极品美女ASSPICS | 亚洲欧洲巨乳清纯 | 受快穿被肉来肉去NP男男 | 日本a视频 | 宅男噜噜噜66网站 | 做爰全过程免费的视频在线观看 | 五月天精品视频在线观看 | 日本好看的电影 | 中文字幕网站在线观看 | 久久综合五月开心婷婷深深爱 | 日韩视频一区 | 午夜4k最新福利 | 在线观看免费情网站大全 | 日本大胆欧美人术艺术动态 | 日本午夜三级 | 中文字幕日本一区 | 欧美真人性做爰一二区欧美影院 | 娇妻系列交换27部多P小 | 久久精品麻豆日日躁夜夜躁 | 国产精品久久人妻无码网站一区L | 久久99精品久久久久久噜噜 | 欧美亚洲桃花综合 | 一区二区三区成人A片在线观看 | 免费一级国产大片 | 中文字幕韩国三级少妇在线光看 | 小小女视频网站色琼网站 | 女人张开腿让男人桶爽免 | 欧美精品啪啪 | 美女裸乳裸体无遮挡免费A片软件 | 免费观看日韩大尺码观看 | 中文字幕日本不卡一二三区 | 神马97 | 最近在线视频观看2018免费 | 性插图动态图无遮挡 | 国产成人无码免费看片色哟哟 | 国产日本一区二区三区 | 给我一个可以看片的免费 | 亚洲欧美日韩一区二区 | 久久久久一 | 香蕉久久国产AV一区二区 | 国产精品久久久久无码人妻网站 | 国产精品呻吟久久人妻无吗 | 免费黄网站在线观看 | 蜜桃日本MV免费观看 | 91插插插网站 | 秋霞电影伦理伦理片 | 色狠狠狠色噜噜噜综合网 | 大伊香蕉在线观看视频 | 婷婷草| 免费中文字幕日产乱码 | 精品少妇一区二区三区A片 精品日本亚洲一区二区三区 | 欧美亚洲熟妇一区二区三区 | av在线观看地址 | 69国产视频 | 中文在线三级中文字幕 | 99ri9| 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 | 91福利国产在线观看一区二区 | 蝴蝶谷成人 | 国产综合有码无码中文字幕 | 亚洲伊人情人综合网站 | 欧美中文字幕一区 | 丁香色婷婷 | 国产720刺激i在线视频 | 国内精品一卡二卡三卡 | 亚洲区偷拍自拍29P 亚洲人成77777A片张津瑜 | 九七电影院| 狠狠色噜噜狠狠狠狠888奇米 | 粗大挺进尤物人妻中文字幕 | 法国艳妇LARALATEXD | 国产色婷亚洲99精品AV在 | 国产成人精品日本亚洲网址 | 一起来看流星雨在哪拍的 | 国产成人免费福利网站 | 欧美三级经典免费播放 | 抵在 洗手台 挺进 撞击BL | 国产亚洲精品久久久久小 | 国产精品综合色区 | 天天天做天天天天爱天天想 | 成人午夜毛片 | 2018天天干天天射 | 亚欧免费观看在线观看更新 | 狠狠人妻久久久久久综合九色 | 黑人狂躁日本妞无码A片 | 久热这里只有精品6 | 日本精品无码久久久久APP | 最近中文字幕高清免费大全8 | 好看的电影你懂的 | 国产一级久久免费特黄 | 伦理电影在线 | 日韩精品电影在线 | 首页欧美日韩在线观看 | 久久久久免费精品国产 | 日韩欧美综合AV久久一区 | 亚洲 自拍色综合图区 | 别停好爽好深好大好舒服视频 | 国精产品自偷自偷综合下载 | 日韩精品欧美一区二区三区 | 亚洲欧美偷拍综合图区 | 亚洲永久免费 | 成人精品AV一区二区三区网站 | 黄色一级片在线 | 欧美午夜春性猛交xxxx | 91呻吟丰满娇喘国产区 | 欧美日本日韩aⅴ在线视频 欧美日本日韩 | 一级一级特黄女人精品毛片视频 | 日本在线国产 | 加勒比色综合 | 天天操天天操天天操 | 黄色福利片 | 99国产精品久久久久久久久久久 | 亚洲精品高清AV在线播放 | 国产人妻高清国产拍精品 | 麻豆文化传媒网站入口 | 黄色网zhan| 亚洲日产国产 | 国产精品高潮呻吟久久影视A片 | 精品午夜寂寞影院在线观看 | 亚洲三区视频 | 九一精品国产 | 久久精品国产亚洲麻豆小说 | 国产精品成人四虎免费视频 | 亚洲综合AV色婷婷五月蜜臀 | 中文字幕亚洲第一 | 国产美女影院 | 强壮公次次弄得我高潮A片视频 | 亚洲精品做爰无码片麻豆 | 最新亚洲国产手机在线 | WW.2024色情网图片 | 波多野结衣三级在线观看 | 91.com在线观看 | 久久国产热 | 久久99精品久久久久久h | 日本丝瓜着色视频 | 男人边吃奶边摸边做刺激情话 | 色老汉影院| 91超级碰 | 久久AV亚洲精品一区无码网 | 亚洲 日韩 国产 有码 不卡 | 亚洲精品无码成人A片在线小说 | 久久视频在线视频观看99 | 最近中文字幕无吗免费 | 九九热免费在线观看 | 性一交一乱一伦一色一情孩交 | 小妖精朕受不了了高h | 免费无码毛片一区二区A片 免费无码精品黄AV电影 | 国产激情三级 | 欧美国产一区二区三区激情无套 | 中文字幕在线播 | 国产99九九久久无码熟妇 | 亚洲一区二区三区国产精华液 | 精品日韩视频 | 久久国产亚洲精品AV麻豆 | 么公又大又硬又粗又长 | 97在线人人 | www亚洲天堂 | 黄色网址视频免费 | 日本bbw激情bbw| 国产a免费观看 | 午夜免费| 成人 在线 视频自拍 | 亚洲学生妹高清AV | 五月婷婷激情第四季 | u影快播 | 久久精品99国产精品日本 | 五月婷婷开心 中文字幕 | 亚洲午夜一区 | 影音先锋资源站男人网 | 2022国产精品福利在线观看 | 国产720刺激在线视频 | 永久免费观看黄网站 | 99热只有 | 日韩免费毛片 | 免费的视频 | 热re99久久精品国99热 | 成人免费视频一区 | 久久精品国产99国产精2020丨 | 国产又色又爽又黄的男女小说免费 | 亚洲欧美强伦一区二区另类 | 久久视频这里只精品99re8久 | 亚洲精品久久久久中文第一幕 | 性一乱一交一A片视频 | 伊人蕉久中文字幕无码专区 | 亚洲精品入口一区二区乱麻豆精品 | 伊人婷婷综合缴情亚洲五月 | 久久re视频这里精品一本到99 | 日韩精品一区二区在线观看 | 国产精品大尺度尺度视频 | 日本在线亚洲 | 久热亚洲精品一区二区 | 一本大道一卡二卡三卡四卡在线观 | 日韩夜夜操 | 三级欧美在线 | 黑人巨茎大战白人女40CMO | 久久精品欧美日韩精品 | 美国vps毛片| 色欲AV亚洲A片永久无码精品 | 极品美女一区二区三区视频 | 丝瓜草莓秋葵污WWW旧版安卓 | 好硬啊进得太深了A片无码视频 | 日本久久精品毛片一区随边看 | 国产一区二区无码蜜芽精品 | 无码日韩人妻精品久久蜜桃免费 | 九九久久国产精品大片 | 薄冰电视剧全集40完整版 | 国产成人精品久久免费动漫 | 亚洲精品中文字幕一区二区三区 | 成人精品人成网站 | 欧美日韩午夜精品不卡综合 | 少妇性L交大片免 | 老司机精品在线 | 亚洲免费黄色网址 | 色插综合| 国产在线高清不卡免费播放 | 国产又爽又大又黄A片软件 国产又爽又大又黄A片图片 | 老湿机费x一分钟影院体验区 | 日本午夜高清视频 | bt天堂网www bt天堂网.www在线资源 | 天堂网www在线资源中文 | 亚洲国产在 | 国产精品中文字幕在线观看 | 天堂w | 久久影院午夜理论片无码 | 亚洲国产成人精品一区91 | 毛太多进不去21p | 欧美视频区高清视频播放 | 国产在线高清视频无码 | 国产精品亚洲精品久久品 | 任你躁 | 欧美zzzo00另类高清 | 亚洲婷婷六月的婷婷 | 美国伊人网 | 免费啪视频在线观看视频久18 | 成人国产AV精品久久久久 | 中文字幕日本最新乱码视频 | 成人网站色情WWW免费 | 国产极品视频 | 国产欧美精品系列在线播放 | 色播六月 | 久久99热只有频精品6狠狠 | 欧美日韩中文国产一区二区三区 | 在线色网站| 美日韩免费视频 | 久久成人做爰电影图片 | 久草在线新免久费观看视频 | 日本 片 成人 在线 日本 欧美 国产 | 久久精品人妻无码一区二区三区盗 | 精品久久综合1区2区3区激情 | 国产aav | 99久久精品免费国产一区二区三区 | 在线看片成人免费视频 | 国产一区不卡 | 午夜视频在线观看免费观看在线观看 | 在线久综合色手机在线播放 | 91最新网址| 又大又粗韩国色情A片绿色椅子 | 日本视频二区 | 国产精品黄色 | 免费看黄色片网站 | 精品国产亚洲AV麻豆 | 在线黄色.com | 黄色资源在线观看 | 国产精品自在自线亚洲 | 亚洲欧美在线观看一区二区 | J8又粗又硬又大又爽又网站 | 久久天堂| 91亚洲国产 | 亚洲三级久久 | 欧美三级免费 | 在线免费日本 | 曰韩少妇内射免费播放 | 丁香花免费高清视频完整版动漫 | 国产精品污视频 | 久久免费看少妇高潮A片特爽 | 国产麻豆亚洲精品一区二区 | 这里只有精品久久 | 有匪全集免费观看完整版 | 日本午夜精品一区二区三区电影 | 国产精品视频99 | 思思久久好好热精品国产 | 国产在线观看中文字幕 | 修理工厨房侵犯人妻系列国产 | 亚洲欧洲日本无在线码天堂 | 四虎成人网 |