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

wowacz

12 Oct 2025(atualizado 12/10/2025 às 04h25)

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

Temas

Compartilhe

BBCcom_Content_Index_for_July_2025.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 clube de poker ribeirao pretoits simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadcasting CorporationRegisterSign InHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveHomeNewsIsrael-Gaza WarWar in UkraineUS & CanadaUKUK PoliticsEnglandN. IrelandN. Ireland PoliticsScotlandScotland PoliticsWalesWales PoliticsAfricaAsiaChinaIndiaAustraliaEuropeLatin AmericaMiddle EastIn PicturesBBC InDepthBBC VerifySportBusinessExecutive LoungeTechnology of BusinessFuture of BusinessInnovationTechnologyScience & HealthArtificial IntelligenceAI v the MindCultureFilm & TVMusicArt & DesignStyleBooksEntertainment NewsArtsArts in MotionTravelDestinationsAfricaAntarcticaAsiaAustralia and PacificCaribbean & BermudaCentral AmericaEuropeMiddle EastNorth AmericaSouth AmericaWorld’s TableCulture & ExperiencesAdventuresThe SpeciaListTo the Ends of The Earth EarthNatural WondersWeather & ScienceClimate SolutionsSustainable BusinessGreen LivingAudioPodcast CategoriesRadioAudio FAQsVideoLiveLive NewsLive SportHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherNewsletters'Its strength is its simplicity': The benefits of cleaning with vinegar24 April 2025ShareSaveKatarina ZimmerShareSaveGetty Images(Credit: Getty Images)Katarina Zimmer put vinegar to the test as a cleaning product and discovered a wide range of benefits, for people and the planet.A few months ago in my new Berlin apartment, my toilet and I were at war. No amount of scrubbing or toilet cleaner would evict the limescale coating inside. Frustrated, I turned to Google and stumbled across a page recommending vinegar – something that the previous inhabitant had left behind in abundance. After dropping two tablespoons full of "Essigessenz" – essentially concentrated vinegar – into the toilet and waiting for half an hour, I scrubbed and the limescale came off in a moment. Since then, I've enthusiastically used vinegar to rid my world of limescale. I've found it even more effective than my regular kitchen spray cleaner for getting my sink sparkling. That includes the faucet, which I wrapped in a vinegar-soaked kitchen tissue – whereas my regular cleaning spray dribbled off. And rather than having to buy special tablets to clean my limescale-smothered glass kettle, I simply poured two tablespoons of concentrated vinegar inside and boiled it. As the limescale crackled off, it made a satisfying sizzling sound.I wondered if vinegar had other advantages. Did it also kill off bacteria and other germs? And, importantly, was this simple, natural product better for the environment and for my health than regular cleaning products? The internet is full of sustainability influencers and green cleaning blogs that advertise vinegar as a jack-of-all-trades and a safer and "greener" alternative to "toxic" cleaning products. These claims make sense on the surface; vinegar is after all just fermented alcohol and has long been used as a food preservative, in salad dressings, as well as a household cleaner – but I wanted evidence. After interviewing three experts, I learned that while some of these claims are true, the benefits of vinegar depend a lot on how it's used and the kind of grime you're trying to get rid of.Getty ImagesLimescale dissolves more easily in acidic fluids like vinegar (Credit: Getty Images)Reassuringly, Eric Beckman, a chemical engineer and emeritus professor at the University of Pittsburgh in Pennsylvania, told me that the best cleaning use for acetic acid – the main component of vinegar – is exactly what I had been using it for: as a descaler. Limescale – and rust, for that matter – consists of certain ions that dissolve more easily in acidic fluids like vinegar, he says. Beckman uses vinegar himself to get limescale off mirrors, while the microbiologist Dirk Bockmühl of Germany's Rhine-Waal University of Applied Sciences prefers using lemon juice, which contains citric acid, which he says is a more effective descaler and smells better. (Read more about why vinegar is such an effective cleaner.)That said, vinegar doesn't work on everything. Beckman says that soap does a better job at removing oily films on dishes, while baking soda is effective against processed oils that have stuck onto surfaces while cooking. (Read more about whether baking soda is environmentally friendly).However, Beckman expresses exasperation about a popular remedy of mixing vinegar together with baking soda. The mixture is chemically quite useless, he says, as the acid of vinegar and the base of baking soda effectively cancel each other out. "I use both, but not together," says Beckman. "Together, they give you nothing."   And while vinegar is often touted as a powerful antimicrobial, Bockmühl says, the truth is more nuanced. In a 2020 study, Bockmühl and his colleagues put vinegar to the test against a selection of disease-causing bacteria, viruses and fungi. While many internet recommendations suggest adding a dash of vinegar into a bucket of water for cleaning, Bockmühl found that its anti-microbial effects only kick in at an acetic acid concentration of 5% – its concentration in pure vinegar. And it was only fully effective at distilled concentrations of 10%  – to which the researchers added a dash of citric acid – in killing off five common bacteria, including Escherichia coli and Staphylococcus aureus, as well as a mould, a yeast and a weakened strain of the vaccinia virus. Other studies have found that similar concentrations also work against Sars-CoV-2, the virus that causes Covid-19.  But even these concentrations didn't work against the MRSA bacterium, an especially stubborn strain of Staphylococcus aureus that's resistant to certain antibiotics, while countless bacteria remain untested. Many bacteria – including the ones that ferment alcohol into vinegar – thrive in acids, Beckman adds: "Then they'll be like, 'ooh, yay, vinegar.'" Some moulds, too, are resistant to acetic acid while some viruses – like norovirus – might be, too, Bockmühl suspects. Beckman says that soaps are more effective against bacteria, while standard disinfectants work better against viruses and moulds. Harsh treatments like bleach will definitely kill everything, Beckman says – although bleach can be unsafe if used incorrectly.Getty ImagesVinegar is less effective against processed oils that have stuck onto surfaces during cooking (Credit: Getty Images)Bockmühl stresses that, even for the germs that vinegar does kill, a relatively high concentration is needed. The concentration won't be adequate "if you just put a teaspoon of vinegar into your cleaning solution", Bockmühl says. However, the higher the dose of acetic acid, the more irritating it can be on the skin, he adds. It is harmful if it gets into your eyes. Surfaces can suffer, too: vinegar corrodes natural stone and metals like copper, bronze and brass, according to the Italian chemist Dario Bressanini's book The Science of Cleaning. And in dishwashers or washing machines, it can harm the rubber gaskets used to seal them, while it could also damage coffee machines and strip away the coating on tiles and grout, Bressanini writes. But Bockmühl assures me that it's fine to use vinegar on glass and ceramic surfaces – like my toilet – and stainless steel sinks.The trouble that Bockmühl sees with using homemade cleaning products is that they don't come with instructions or safety recommendations. "They might be safe if you know what you're doing," he says, "but there are a lot of really stupid and absurd recommendations on the internet".More like this:? Are you cleaning your water bottle enough?? Why you might want to change your bedclothes more often? Seven proven ways to help the planet in 2025 To learn more about how the health risks of vinegar compare with those of conventional cleaners, I called up Nicola Carslaw, professor of indoor air chemistry at the University of York in the UK. Her concern is how cleaners disrupt the air in our homes and buildings. It's known that professional domestic cleaners tend to have higher rates of asthma than other occupational groups, although it's proven difficult to pin that on any single product or ingredient.In a recent study, Carslaw and her colleagues tested 23 different cleaning products including dishwasher fluid, washing up liquid and spray products, and found that many of them released volatile chemical compounds (VOCs). Some of these compounds, like terpenes, are often added to give pleasant aromas, such as lavender or pine oil, but they're highly reactive in the atmosphere. Terpenes for instance, easily react with ozone in the air, creating miniscule particles. In general, inhaling particles of this size has been linked to lung and heart disease."Your nose is a really good filter for the big particles, but the smaller ones can get all the way into your lungs [and] into the bloodstream," Carslaw says. Interestingly, in her study she found that cleaning products marketed as "natural" or "green" didn't seem any healthier in this regard. "The natural/green ones had as many, if not more VOCs as the standard cleaners, and in many cases they were more reactive," she says.Vinegar passes muster on any sustainability scale because it's simple and it's degradable – Eric BeckmanBut vinegar, by contrast, only consists of water and acetic acid (and a few other substances that make the difference between red and wine vinegar, for instance). As such, "it's just not going to be chemically reactive in the same way", Carslaw says. Another advantage of vinegar is that it's usually applied on a cloth to wipe surfaces rather than used as a spray, Carslaw adds. Research shows that cleaning products applied in spray form have more harmful effects on the respiratory system than liquids and wipes. (Read more about the health risks associated with cleaning products in Jessica Bradley's story). "When you spray something, you're turning the chemical into a form that's much easier to breathe [in] than if you have the liquid," Carslaw says. That said, she always advises gloves when there's risk of skin contact, good ventilation and avoiding excessive cleaning, whatever product is used. (Read more about whether we're cleaning too much for our own good).Getty ImagesVinegar quickly breaks down and therefore its environmental impact is low (Credit: Getty Images)This all left me with one remaining question: is using vinegar more environmentally friendly than conventional cleaners? That's a hard question to answer, says Beckman. Ideally, there would be life cycle analyses for cleaning products which track impacts from cradle to grave, tracing each ingredient back to its source, how it's produced, transported, packaged and eventually disposed of. But very few companies do that thoroughly, even if they do brand their products as "green", Beckman says. "But I will say this about vinegar. [Its] strength is its simplicity," Beckman says. Conventional cleaners can consist of more than a dozen different ingredients, many of them industrially manufactured in energy-consuming processes, he says. Acetic acid is born through the natural, yeast-driven fermentation of alcohol, which itself comes from the natural fermentation of sugar. The biggest environmental impact of vinegar-making is where the sugar came from – whether it's grapes, apples, grains, potatoes, or rice – which are largely renewable resources. Bockmühl cautions that this only applies to naturally fermented vinegars, the ones typically sold as food products; there are also synthetic vinegars which are derived from fossil fuels, meaning they come with all the environmentally harmful impacts of oil and gas extraction.  Even at the very end of its life, vinegar has little impact. While many ingredients in soaps are tough molecules and don't easily biodegrade, sometimes continuing to kill organisms once they're in the environment, vinegar quickly breaks down, Beckman says. "Vinegar passes muster on any sustainability scale because it's simple and it's degradable," he says. After discovering all of this, I felt even better about using vinegar. I probably won't rely on it for ridding my surfaces of germs, but I'll keep using it to remove limescale and look forward to trying it out on the next rusty item I find. I'm happy to put up with the smell, knowing that I'm using a sustainable product that's likely better for my health. --For essential climate news and hopeful developments to your inbox, sign up to the Future Earth newsletter, while The Essential List delivers a handpicked selection of features and insights twice a week.For more science, technology, environment and health stories from the BBC, follow us on Facebook, X and Instagram.EarthSustainability on a ShoestringHygieneHealthSustainabilityEnvironmentClimateScienceFeaturesWatchExplaining how a touchscreen works with a sausageBritish mathematician Hannah Fry digs into the science of touchscreens.4 Aug 2025ScienceSeven images that transformed our world viewWatch how the maps and images of our planet from above have changed over the last two millennia.30 Apr 2025EarthTen striking images of an Earth scarred by humansFrom a shipwrecking yard in Bangladesh to a river of iron dioxide in Canada, a deep dive in Ed Burtynsky's work.16 Apr 2025EarthWhat's inside a black hole?Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.9 Apr 2025ScienceUsing bubbles to remove forever chemicals from our waterBBC Click visits a UK research team working on a solution to remove toxic chemicals known as PFAS from water.27 Mar 2025ScienceHow sex with Neanderthals changed us foreverWe find out what we gained when Homo sapiens mated with Homo neanderthalensis many thousands of years ago.18 Mar 2025ScienceTheory of Evolution: How did Charles Darwin come up with it?The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.12 Feb 2025ScienceRaja the elephant asking for a road tollIn Sri Lanka, a charming elephant cheekily halts traffic for treats. 29 Jan 2025EarthInside the hidden world of rhino romanceWatch two rhinoceroses involved in a game of 'kiss and chase'.24 Jan 2025EarthThe power of hugs for reducing inflammation in the bodyDr. Lisa Dahlgren discusses the effect human touch has on our health and wellbeing.22 Jan 2025HealthA mother tiger on a fierce hunt to feed her cubsWhile her three offspring take a leisurely bath, this Bengal tiger mother must find food for the entire family.16 Jan 2025EarthHow foxes outsmart world's heaviest raptor in quest for foodWatch red foxes challenge the Steller's sea eagle, the world's heaviest raptor, as they search for food in Japan.8 Jan 2025EarthHomo juluensis: Possible 'new ancient human' identifiedResearchers may have identified a new human species that lived around 300,000 years ago in Asia.6 Jan 2025ScienceMum saves baby seal with a clever trickWatch as David Attenborough reveals the unique behaviour of a mother seal to protect her pup in icy waters.31 Dec 2024EarthHow Arctic communities protect themselves from avalanchesBBC Click finds out how local communities in Svalbard use technology to combat avalanches and heavy snowfall.31 Dec 2024ScienceMountain goats: A death-defying battle to mateWatch the world's largest species of goat fight for the right to mate, teetering on the edge of perilous drops.17 Dec 2024EarthThe near miraculous escape of a cave swiftThe Tam Nam Lod Cave is home to over a quarter of a million swifts. But there are hidden dangers.12 Dec 2024EarthMeet the mudskipper: The remarkable fish that lives on landThe mudskipper is a fish that can leap with a flick of its tail. Watch a particularly agile specimen in action.3 Dec 2024EarthWatch the dramatic escape of tiny fish from deadly sharksThe Moorish idol, a dramatic little fish with dazzling stripes, adopts a clever strategy to save its life.27 Nov 2024EarthEarth tides: Why our planet's crust has tides tooHow do they differ from the ocean? A geophysicist breaks it down for us.28 Sep 2024Weather & scienceMore from the BBC3 hrs agoFarmer, 37, dies after missing out on new treatment Robin Elcock was unable to access new treatment for brain tumours as he did not have the necessary tissue.3 hrs ago4 hrs agoDementia suits show how tricky daily tasks can beThe simulation suits are helping health staff understand the frustration patients face every day.4 hrs ago4 hrs agoBlood cancer treatments come on 'leaps and bounds'A Wiltshire woman, who is now in remission, says new treatments are also much gentler on the body. 4 hrs ago8 hrs agoPostcode lottery for new cancer treatments, doctors warnExperts say bureaucracy is "stifling innovation" and that applying for funding to pay for new treatments can be "cumbersome".8 hrs ago8 hrs agoDr Xand: Stress is normal. Here's how to manage it betterStress, in small doses, can be good for us. Here are five simple, science-backed ways to manage it better. 8 hrs agoBritish Broadcasting CorporationHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherBBC ShopBritBoxBBC in other languagesFollow BBC on:Terms of UseAbout the BBCPrivacy PolicyCookiesAccessibility HelpContact the BBCAdvertise with usDo not share or sell my infoBBC.com Help & FAQsContent IndexCopyright 2025 BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. 

NEWSLETTER GRATUITA

Nexo | Hoje

Zambia_vs_Morocco_CAF_World_Cup_Qualifiers_stats_amp_head-to-head_-_BBC_Sport.txt

BBCcom_Content_Index_for_January_2023.txt lazer e os moda explorar.

GRáFICOS

nos eixos

'Massive' wildfire spike after Wales' long and hot summer.txt

BBCcom_Content_Index_for_February_2025.txt entretenimento e os abrangente explorar.

Navegue por temas

BBC_Travel_Destinations_Middle_East.txt BBC_Travel_Destinations_Asia.txt BBC_witnesses_West_Bank_attack_by_masked_Israeli_settlers.txt BBC_Earth_Weather_amp_Science.txt BBCcom_Content_Index_for_July_2019.txt BBCcom_Content_Index_for_December_2020.txt BBCcom_Content_Index_for_July_2021.txt BBC_Travel_Destinations_Europe.txt BBC_Home_-_Breaking_News_World_News_US_News_Sports_Business_Innovation_Climate_Culture_Travel_Video_amp_Audio.txt BBC_Verify_Latest_News_amp_Updates_BBC_News.txt
97伦色| 国产精品人妻在线观看 | 窝窝视频成人影院午夜在线 | 国产又粗又黄又爽的A片动漫软件 | 国产又爽又黄无码无遮挡在线观看 | 国产SUV精品一区二区五 | 医生护士一级毛片 | 欧美性狂猛AAAAAA | 韩国伦理电影在线神马网 | 乌龙院在线观看免费观看完整版 | 33连成人导航 | 阳茎伸入女人阳道视频 | 国产免费A片好硬好爽好深漫画 | 国产91青青成人a在线 | 国产 欧美 亚洲 中文字幕 | 校园舂色另类小说经典色 | 四虎影库在线永久影院免费观看 | 日本二区免费一片黄2019 | 免费爱爱网址 | 花房姑娘HD免费高清版视频 | 国产av在在免费线观看美女 | 真人做爰视频在40分钟 | 奇米777影视成人四色 | 日韩制服丝袜在线 | 三级在线看中文字幕完整版 | i91media果冻传媒| 麻花传媒MV一二三区别在哪里看 | 老司机午夜视频 | 漂亮少妇高潮A片XXXX | 秋霞论理片 | 久久内在线视频精品mp4 | 韩国精品一区二区三区 | 白莲花乖腿打开h调教 | 日韩好片一区二区在线看 | 日韩性做爰免费A片AA片 | 啊用力使劲别停h | 中文乱码字幕视频观看网站免费 | 男女后式激烈GIF动态图 | 日本中文字幕巨大的乳专区 | 欧美另类久久久精品 | 97一期涩涩97片久久久久久久 | 91精品国产91| 好吊色青青青国产在线播放 | 免费观看波多野结衣 | 波多野结衣在线高清视频 | 国产成人亚洲影视在线 | 小草一二三四区乱码 | 久久99国产一区二区三区 | 亚洲尹人 | aaaaa级毛片免费视频 | 日韩性插 | 久久日本精品在线热 | 日本免费在线观看视频 | 小骚货 爽不爽 | 黄色片毛片 | 一本到一本到高清视频在线观看 | 97涩涩涩 | 在线观看特色大片免费网站 | 国产亚洲精品久久久久婷婷瑜伽 | 中国ZLJZLJZLJZLJ喷网站免费 | 亚洲AV国产SUV | 麻豆精品国产 | 免费无码又爽又刺激A片小说在线 | 日本ww色| 人人爽久久涩噜噜噜AV | 国外卡一卡二卡三免费专区 | 女人张开腿让男人桶免费网站 | 欧美一区二区激情视频 | 少妇人妻丰满做爰XXX | 乱精品一区字幕二区 | 涩涩鲁亚洲精品一区二区 | 亚洲国产日韩欧美高清片a 亚洲国产日韩精品一区二区三区 | 日日猛噜噜狠狠扒开双腿小说 | 扬名立万免费观看完整版 | japanese色系护士free | 日本理论片和搜子同居的日子GOOD | 夜色成人网 | 日韩视频高清 | 又大又爽又硬的曰皮视频 | 自拍视频白嫩大学生兼职 | 免费99精品国产自在现线 | 日韩人妻无码精品A片免费不卡 | 我我色| 黄色三级免费看 | 国产成人久久精品 | 亚洲AV成人无码久久精品A片 | 国产在线观看中文字幕 | 日本娇小xxxxhd | 国产一级黄色毛片 | 国产福利资源在线 | 在线观看黄的网站 | 国产最新免费高清在线视频 | 苍井空三点快播 | 青青国产线观观看视频 | 中文字幕无码无卡视频 | jizz欧美巨大 | 麻豆精品一卡二卡三卡 | 麻豆 精东 天美传媒 | 欧美日韩免费看 | 国产在线视精品在亚洲 | 男女久久久国产一区二区三区 | 好硬啊进得太深了A片无码视频 | 天天躁了天天躁了天天躁 | 国产成人精品免费视频网页大全 | 国产乱妇乱子在线视频 | 久久日产一线二线真人 | 国产乱码日产精品BD | 么么哒日本影院 | 精品久久久久久 | 国产三级精品三级 | 一体一道久久88色合综合网 | 天堂精品 | 91在线视频观看 | 国产精品呻吟AV久久高潮 | 亚洲精品久久区二区三区蜜桃臀 | 狠狠色噜噜狠狠狠狠色综合久 | 午夜欧美 | 手机在线观看网站免费视频 | 簧片在线免费观看 | 日本精品久久久久久久 | 日韩大片在线永久免费观看网站 | 女人被添全过程A片免费视频 | 2019最新久久久视频精品 | 亚洲国产成人久久精品影视 | 人人做人人爽人人爱影视 | 999re5这里只有精品w | 国产色欲色欲色欲WWW | 淫熟女 | 涩涩的网站图片 | 办公室漂亮人妇在线观看 | 影音先锋电影资源av | 老司机深夜福利影院 | 日本香港三级亚洲三级 | 最近韩国日本免费高清观看 | 久久这里只有精品1 | 欲妇荡岳丰满少妇A片 | 小妖精又紧又湿高潮H视频69 | 直接观看黄网站免费视频 | 久久国产亚洲精品AV麻豆 | 无码精品日本一区二区桃花岛 | 欧美性啪啪 | 最新国模无码国产在线视频 | 熟女人妻 中文字幕在线 | 精品国产91乱码一区二区三区 | 九九热视频精品在线观看 | 色欲久久综合亚洲精品蜜桃 | 国产不卡视频在线观看 | jizz中国日本 | 成人电影在线观看热 | 8x在线视频 | 亚洲avi| 国内精品99| 亚洲国产精华液 | 国产精品久久vr专区 | 国产黄色片网站 | 少妇大叫太大太爽受不了在线观看 | 亚洲愉拍自拍另类天堂 | 新版天堂资源在线官网8 | 美女脱裤衩扒开尿口给男子摸 | 国产激情无码激情A片小说 国产激情艳情在线看视频 国产极品JK白丝喷白浆免费视频 | 精品无人区麻豆乱码1区2区新区 | GV无套内射日本帅哥 | 国产精品恋恋影视 | 国产精品免费播放 | 国产一区在线播放 | 国产 浪潮AV性色四虎 | 色之综合天天综合色天天棕色 | 成人性视频免费网站在线 | 97资源共享在线视频 | 精品午夜一区二区三区在线观看 | 欧美欲乱妇135 | 日韩精品一区二区三区中文字幕 | 我爱我色成人网 | 成人性视屏 | 欧美精品乱码99久久蜜桃 | 亚洲国产熟妇无码一区二区69 | 国产高清国内精品福利色噜噜 | 国偷自产一区二区免费视频 | 中文字幕一区二区区免 | av网页| 伊人婷婷综合缴情亚洲五月 | 乖女H文纯肉芊芊 | 影音先锋影院中文无码 | 日韩中文字幕久久久经典网 | 四房播播电影网 | 日韩亚洲国产高清免费视频 | 大香伊蕉在人线国产手机看片 | 午夜成人A片精品视频免费观看 | 国产精品毛片在线更新 | 无码AV动漫精品一区二区免费 | 国偷盗摄自产福利一区在线 | 国产亚洲精品久久久久久老妇小说 | 国产成人免费不卡在线观看 | 国产AV亚洲精品久久久久久小说 | 伦理片在线观看午夜伦理电影韩国 | 老黄网站在线观看免费 | 精品国产乱码久久久久乱码 | 日本大胆无码视频XXXXX | 欧美在线视频一区 | 欧美成人精品a8198v无码 | 午夜福利试看120秒体验区 | 中文字幕在线有码高清视频 | 周妍希国产福利在线观看 | 中文字幕一区二区三区在线播放 | 国产传媒18精品A片熟女 | 开心色播网 | 四虎影视国产884a精品亚洲 | 色费色情人成视频 | 岛国在线无码免费观 | 色综合天天综一个色天天综合网 | 天堂中文在线最新版地址 | 曰本人做爰大片免费观看一 | 日本人妻精品免费视频 | 欧美88| 色情成人免费视频激情在线观看 | 大陆一级毛片免费视频观看 | 美国毛片aa | 在线免费日本 | 亚洲国产欧洲精品路线久久 | 日本午夜精品一区二区三区电影 | 亚洲中文字幕婷婷在线 | 91久久线看在观草草青青 | 日韩少妇内射免费播放 | 爽死你个放荡粗暴小淫货h文 | 天天做夜夜操 | 麻豆工作室 | 日韩黄色大全 | 日韩在线视频观看免费网站 | 五月天婷婷免费视频观看 | 午夜黄色福利视频 | 欧美在线观看 cao38 | 韩国医院的特殊待遇5 | 快点使劲舒服爽还要高清 | 国产精品扒开腿做爽爽爽A片小 | 精品免费国产一区二区三区四区五 | a级毛片免费 | 美日韩一区二区 | 国产中文字幕久久 | 日韩福利在线观看 | 成人男女网18免费0 成人免费在线视频观看 | 久久人妻AV一区二区软件 | 图片区乱熟图片区小说 | 亚洲午夜a| 国产成人综合在线 | 日本免费一区高清观看 | 久久久久久久综合日本亚洲 | 污网站在线免费看 | avi电影 | 美女扒开尿道让男人捅 | 你懂的网址免费国产 | 国产亚洲女人久久久久久 | 老湿影院视色情下 | 影音先锋资源站男人网 | 一级做a爰片久久毛片16 | 三级专区| 91精品国产综合久久精品 | 91频视| 国产一性一交一伦一A片小说 | 久久精品人妻无码一区二区三区V | 国产黄色在线网站 | 亚洲欧美精品无码大片在线观看 | 青草青草久热精品视频99 | 日本一区午夜艳熟免费 | 国产精品久久久久久久久久久久 | 日韩精品毛片 | 久久91精品国产91久久跳舞 | h片在线观看视频 | 扒开双腿被两个男人玩弄视频 | A片扒开双腿进入做视频 | 在线免费看电影 | 你好湿呀!小妖精快叫 | 国产VA精品午夜福利视频 | 日本韩无专砖码高清 | 中文字幕一区二区在线观看 | 国产精品看片 | 天堂网www中文在线资源 | 99久久久无码欧美精品性 | 星野亚希快播 | 迷你世界皮肤兑换码永久 | 国产在线观看免费一级 | 国产三级日本三级美三级 | 免费大片黄在线现看国语 | 免费黄色在线看 | 上课时勃起了女同学帮我口 | 漂亮的丰年轻的继坶3在线观看 | 精品欧美成人高清在线观看2021 | 久久久无码人妻精品无码 | 四虎影视四虎在钱免费 | 日韩免费精品一级毛片 | 欧美日韩亚洲成人 | 日韩精品视频在线播放 | 伊人热人久久中文字幕 | 亚洲人成一区二区不卡 | 黄色在线播放网址 | 色在线免费观看 | 每章都有肉并且非常黄的小说 | 亚洲小说电影偷拍在线观看 | 欧美日韩免费在线观看 | 999re5这里只有精品w | 91极品哺乳期女神挤奶在线 | 婷婷射精AV这里只有精品 | 91久久国产综合精品 | www.日本com| 国产内地激情精品毛片在线一 | 99久久久精品免费观看国产 | 美日韩在线观看 | 国内揄拍国产精品人妻门事件 | 久久黄色影片 | 人人人人人看碰人人免费 | 成人网免费视频 | 伊人成人生综合网图片 | 天天上天天干 | 99久久精品国内 | 内射囯产旡码丰满少妇 | 国产综合有码无码中文字幕 | 呻吟国产AV久久一区二区 | 一区二区三区无码高清视频 | 在线观看视频一区 | 亚洲国产日韩精品一区二区三区 | 亚洲一区欧洲一区 | 换脸国产AV一区二区三区 | 亚洲精品国产AV成人毛片 | 欧美性A片又硬又粗又大暴力 | 国产成人精品999在线 | 黄色一级毛毛片 | 亚洲AV无码一区二区三区牛牛 | 精品自拍视频在线观看 | 国产人澡人澡澡澡人碰视频 | 欧美激情一区二区 | 最新黄yyid | 性色AV一区二区三区V视界影院 | 九九九九精品视频在线播放 | 翁止熄痒禁伦短文合集 | 天天插狠狠干 | 大量国产激情视频在线观看 | 国产丰满人妻一区二区电影 | 忘忧草在线社区WWW日本-韩国 | 欧美成人精品a8198v无码 | 国产精品99久久久久久人 | 亚洲女同精品中文字幕 | 天天射天天干天天色 | 国产亚洲中文日本不卡二区 | 最近中文字幕手机大全 | 98色精品视频在线 | 国语熟妇乱人伦A片久久 | 日韩精品网 | 极品成人 | 先锋影音波波资源网 | 国产精品69人妻无码久久久 | 免费无码一区二区三区A片不卡 | 狠狠鲁图片| 久久久久国产成人精品 | 91天堂网| 日本高清二三四本2021第九页 | 中文字幕亚洲自拍 | 综合一和综合二 | 国产综合久久久久久鬼色 | 亚洲人成网77777色在线播放 | 国产理论在线观看 | 中文无码人妻在线一区不卡 | 欧美变态味孕交 | 成人韩免费网站 | 日日噜噜夜夜狠狠 | 日韩一区二区三区不卡 | 色综合小说久久综合图片 | 中文字幕色综合久久 | 国产精品爽爽va在线观看无码 | 久久青青无码AV亚洲黑人 | 久久国产精品久久国产片 | 97在线视频免费观看 | 欧美日韩日本国产 | 国产成人手机视频 | 校花裸体扒开两腿让我桶 | 日韩一级视频在线观看播放 | 高清国产天堂在线BT免费 | 好爽好多水C死你视频 | 蜜桃色欲AV久久无码精品 | 91网站网站网站在线 | 体育生爽擼又大又粗的雞巴的动漫 | 色毛片免费观看 | 美女脱裤衩扒开尿口给男子摸 | 成人精品一区二区激情 | 上司揉捏人妻丰满双乳电影 | 国产激情一区二区三区四区 | 日韩 在线视频精品 | 性爱免费视频 | 国产亚洲精品久久久久久久 | 善良的小峓子在线高清免费观看完整中文版 | 岳的下面好紧好爽视频 | 深爱婷婷| 成人国产精品一级毛片视频 | 黄色网址在线免费播放 | 校园舂色另类小说经典色 | 精品国产999 | 国产一区在线看 | 婷婷久操 | 被两个同桌绑起来玩乳动态gif | 日本v在线观看 | 中文精品字幕电影在线播放视频 | 中文字幕亚洲码 在线观看 中文字幕无线观看在 | 九九九九热 | A片人人澡C片人人大片 | 国产精品久久久久久99人妻绯闻 | 国产AV亚洲精品久久久久 | www.天堂网.com| 欧美亚洲国产免费高清视频 | 国产亚洲国际精品福利 | 欧美阿v天堂视频在99线 | 天堂网2021| 婷婷色五月另类综合视频 | 天美影视传媒 | 在线观看国产日韩 | 漂亮的丰年轻的继坶3在线观看 | 国产视频精品免费 | 99久久人妻无码精品系列性欧美 | 性一交一乱一A片 | 特黄做愛又硬又大A片视频 特级 毛片 | 欧美第九页 | 吉泽明步超m自缚痴女 | 日韩一卡2卡3卡4卡乱码免费 | 丁香激情五月 | 肥老熟妇伦子伦456视频 | 韩剧国语版你是我的命运 | 亚洲AV无码专区国产精品麻豆 | 无码A片激情做爰视频在线观看 | 国产黄网在线观看 | 海角国精产品一区一区三区糖心 | 拉风色影院 | 欧美一区二区在线观看 | 日本中文字幕高清 | 2020欧美极品hd18 | 尤物永久网站 | 成年私人影院网站 | 日韩国产无矿砖一线二线图 | 中文字幕在线不卡视频 | a伦理 电影在线观看 | 免费护士一级毛片 | 国产亚洲精品品视频在线 | 中文字幕人成乱码中文乱码 | 国产乱码卡1卡二卡3卡4卡5 | 亚洲一区二区师生制服 | 好硬好湿好大再深一点动态图 | 亚洲情A成黄在线观看动漫软件 | 国产精品99 | 免费大片黄在线观看视频 | 国产精品久久久久久久久软件 | 蜜桃少妇AV久久久久久久 | 国产亚洲精品精华液 | 天天操操操操操操 | 免费无遮挡无码永久在线观看视频 | 国产精品综合网 | 国产色婷婷亚洲999精品小说 | 国产国语一级毛片 | 国产精品伦一区二区三级视频 | 亚洲色琪琪永久原网站 | 成人毛片免费 | 国产一区影视 | 国产加勒比 | 波多野结衣免费一区二区三区香蕉 | 国产精品乱码久久久久久软件 | 国产伦理一区 | 久久精品国产清自在天天线 | 亚洲精品午夜 | 99久久精品免费看国产漫画 | 在线亚洲自拍 | 久久精品一本到东京热 | 午夜日 | 寂寞午夜 | 精品成人久久 | 亚洲AV网站 | 秋霞在线观看视频一区二区三区 | 亚洲大片在线观看 | 日本少妇做爰片视频R | 青草网 | 亚洲视频无码高清在线 | 久久精品免观看国产成人 | 福利视频导航大全 | 亚洲免费一区二区 | 99热综合在线 | 午夜理论在线观看不卡大地影院 | 日产精品卡2卡三卡乱码网站 | 一个人在线观看的免费视频 | 在线综合 亚洲 欧美 日韩 | 公共尿bl肉被器总受 | 国产AV亚洲国产AV麻豆 | 99久久久国产精品免费牛牛四川 | spankchinesegay打屁股 | 国产精品一在线观看 | 无限观看韩国动漫免费观看大全 | 狠狠色丁香久久综合婷婷 | 天天舔天天插 | 国产麻豆视频免费观看 | 全国三级网站免费观看 | 日韩精品极品视频在线观看免费 | 国产精品久久久久影院免费 | 色偷拍亚洲国产大姐 | 九九视频在线观看视频6 | 黑人vs亚洲人在线播放 | 蜜桃麻豆WWW久久国产SEX | 亚洲一区日韩 | 校草上课时狂揉我下面 | 丰满熟女人妻大乳波多野吉衣 | 狠狠ri | 超碰免费caopoin最新 | 老司机午夜精品视频在线观看免费 | 精品久久久久久久99热 | 草草影院 国产 日本 | 久久精品国产亚洲AV麻豆 | 成人在线免费视频 | 亚州少妇无套内射激情视频 | 亚洲AV怡红院AV男人的天堂 | 第七色男人天堂 | 亚洲人人爱 | 成人精品人成网站 | 久久久久香蕉 | 国产精品高潮呻吟爱久久AV无码 | 波多野结衣在线免费 | 小小视频资源免费观看高清 | 欧美videos超乳巨大 | 久久精品国产99国产精品澳门 | 久久成人国产精品一区二区 | 欧美精品视 | 欧美精品成人一区二区在线观看 | 午夜精品影院 | 灌饱娇嫩H将军公主最新章节 | 又大又硬又粗做大爽A片 | 日韩黄色网 | 十九天漫画在线观看免费 | 香港三级韩国三级日本三级 | 亚洲一区在线观看无码欧美 | 天天操夜夜做 | 色撸在线视频 | 青草视频国产 | 人人舔人人爱 | 天天在线天天综合网色 | 高清一区二区亚洲欧美日韩 | 久久热视频精品店99 | A片免费观看一区二区三区 A片粗大的内捧猛烈进出在线 | 亚洲hd| 麻豆精品国产剧情观看 | 三个馊子伦着玩小说冫 | 免费观看黄色a一级视频播放 | 久久是热频这里只精品4 | 麻豆91av | 亚洲AV久久久精品麻豆 | www日韩在线 | 国师受被肉到失禁各种PLAY | 亚洲欧美一区二区成人片色欲AV | 免费看污又色又爽又黄又脏小说 | 国产亲妺妺乱的性视频播放 | 国产三级在线观看免费 | 国产精品人妻久久无码不卡 | 老湿机在线观看 | 毛太多进不去21p | 国产第一页浮力影院草草 | 亚洲日本一区二区一本一道 | 最近新韩国日本免费观看 | 熟女倶楽部1011熟女倶楽部 | 东京热 影音| 国产成人综合95精品视频免费 | 久久国产高清一区二区三区 | 澳门一级毛片手机在线看 | 一女被多男枪H又黄又激烈 一女多男np高辣文h | 免费看人与动人物XXXX | 公交车艳妇系列1一40 | 麻豆文化传媒精品一区 | 500第一精品福利导航 | 内射糙汉高H小说 | 四虎在线影视 | 亚洲精品色情婷婷在线播放 | 成熟女人毛片WWW免费版在线 | 人禽伦交小说 | 国产涩涩视频在线观看 | 别插我B嗯啊视频免费 | 国产91专区 | 啪啪内射少妇20241028 | 偷拍亚洲制服另类无码专区 | 最近新免费韩国日本电影 | 珠帘玉幕电视剧免费观看 | 久久精品国产99久久99久久久 | 伦理电影v男人天堂 | 日韩城人网站 | 久久久综合久久 | 毛片A级毛片免费观看品善网 | 91短视频版在线观看www免费 | 亚洲网站免费看 | 中文字幕免费播放 | 激情小说在线观看 | av天堂影音先锋在线 | 久久草色播 | 999精品国产人妻无码系列久久 | 色图片大全123| 黄色成人在线网站 | 又硬又粗进去好爽A片免费多人玩 | AV亚洲AV永久无码精品网 | 国产成人AV大片大片在线 | 日韩欧美伦理片 | 日韩一卡2卡3卡4卡2021免费观看妈妈的朋友 | 黑人操中国女人 | 久久riav.com | 老司机欧美| 自拍一区 综合图区 | 国产欧洲一卡2卡3卡4卡 | 开心婷婷丁香 | 亚洲桃色天堂网 | 亚洲欧美综合中文 | 欧美一区二区三区在线视频 | 乱人妻人伦中文字幕 | 国产乱码精品一区二区三区四川人 | 国产乱码人妻一区二区三区四区 | 午夜福利视频合集4000手机 | 吃奶边摸叫床刺激A片视频 抽插内射高潮呻吟爆乳 | 无码毛片A片-区二区三区 | 最爽快的乱肉小说合集500篇 | 亚洲国产熟妇无码一区二区69 | 久久一级黄色片 | 亚洲国产成人久久精品动漫 | 欧美另类色图片 | 国产又色又爽又免费的刺激软件 | 日日摸天天添天天添无码蜜臀 | 国产a视频 | 韩国伦理电影在线伦理 | 日韩国产成人精品视频人 | 亚洲伦理精品久久 | 国产丝袜护土调教在线视频 | 99久久精品国产高清一区二区 | 国产精品色情国产电影 | 肉蒲团从国内封禁到日本成经典 | 插综合网| 97久久国产露脸精品国产 | 国内免费高清在线观看 | 四川丰满护士毛茸茸 | 性夜夜春夜夜爽A片欧美 | 风骚扰物美女图片20p | 国产精品久久久AV久久久 | 性老少xxxhd 性久久久久久久久久 | 瀬名あゆむ | 美女露100%全身无遮挡 | 一起探恋爱综艺在线观看第七期 | 欧美精品第二页 | 在线国产三级 | 99九九视频高清在线 | 公和我做爽死我了A片AAB | 波多野结衣免费观看视频 | 中文字幕无线观看在 | 欧美一区二区人人喊爽 | 久久99久久精品国产99热 | 国产最新免费高清在线视频 | 成年网站未满十八禁毛片免费 | 日本在线播放一区 | 欧洲丰满大乳人妻无码欧美 | 一本到在线高清观看 | 激情宗合 | 清晨被舔醒的NP小说 | 888午夜不卡理论久久 | 久久九九色 | 单亲真实乱子伦免费视频 | 强奷乱码欧妇女中文字幕熟女 | 中文字幕 日本 | 日韩伦理电影秋霞影院 | 宝贝乖把腿分大一点h欧阳凝小说 | 免费做爰试看120秒 免免费国产AAAAA片 | 玖草在线中文在线2024 | 亚洲国产精品久久久久久 | 91美女在线视频 | 亚洲精品久久精品一区二区 | 久久久久久久国产精品毛片 | 成人年鲁鲁在线观看视频 | 新香蕉视频在线 | 夜夜躁狠狠躁日日躁孕妇 | 麻豆传煤官网入口免费进入 | 黄色网页在线看 | 天天干天天操天天摸 | 佐伯ゆきな | 伧理片午夜伧理片毛片日本 | 天天干天天干天天 | 国产成人精品综合久久久软件 | 亚洲欧美激情图片 | 刘涛一级毛片 | 色五丁香| 久久精品国产清自在天天线 | 最色影院 | 亚洲欧美久久久久久久久久爽 | 五月综合激情网 | 欧美一区二区三曲的 | 欧美视频在线观看视频 | AV午夜久久蜜桃传媒软件 | 家庭教师波多野结衣在线观看 | 精品一区二区在线观看 | 最近2019免费中文字幕视频三 | 狠狠色丁香久久综合婷婷 | 久久久无码精品成人A片小说 | 日韩免费高清一级毛片 | 美女被抽插舔B到哭内射视频免费 | 亚洲综合网国产福利精品一区 | 国产美女被爽到高潮激情免费A片 | 国产免费无码又爽又刺激A片 | 日本最新免费二区三区 | 三色黄A片免费播放335VCC | 欧美xxxx做受欧美精品 | 真实国产熟睡乱子伦视频 | 亚洲国产精品VA在线看黑人 | 97干色| 久久国产精品久久久久久久久久 | 婷停五月深爱五月 | 国产成人影院 | 两性午夜色视频免费网站 | 色汉综合 | 欧美成人免费在线观看 | 国产日韩欧美一区二区三区在线 | 麻豆精品传媒2024艾秋刺青 | 久久久999久久久精品 | 国产精品 欧美在线 另类小说 | 黄色一级片免费网站 | 99在线视频精品费观看视 | 色噜噜影院 | 国产人成精品香港三级在 | 老湿英视在现看免费 | 国产精品悠悠久久人妻精品 | 国产 日韩 中文字幕 制服 | 久久久久久毛片免费观看 | 日日摸天天摸人人看 | 欧美操美女 | 欧美日韩小视频 | 久久九九久精品国产尤物 | 亚洲AV久久久精品麻豆 | 黄色网址分享 | 亚洲精品久久久久久不卡精品小说 | 国产精品高潮呻吟AV久久动漫 | 亚洲一区AV在线观看无码漫画 | 一级片 mp4 | 国产传媒18精品A片在线观看 | 亚洲高清有码中文字 | 成人精品综合免费视频 | 伊人婷婷综合缴情亚洲五月 | 91福利视频免费观看 | 爽到喷水(H)小说 | 欧美成人免费做真爱A片 | 五月色丁香综合成人网 | 亚洲小说欧美另类激情 | 边吃奶边狠狠躁日韩A片 | 樱花草视频在线观看www中文 | 波多久久夜色精品国产 | 最新中文字幕在线播放 | 国模无水印一区二区三区 | 久久精品6 | 国产精品二区页在线播放 | 青草青草久热精品视频99 | 无码欧美喷潮福利XXXX | 日韩精品中文字幕视频一区 | 黄色免费小网站 | 国产精品免费露脸视频 | 四虎无码永久在线影库网址一个人 | 色综合成人| 波多野结衣高清在线播放 | 波多野结衣xxxx性精品 | 久久久无码精品成人A片 | 看片毛网站| 乱公和我做爽死我了A片 | 欧美日韩欧美 | 亚精品一卡2卡三卡4卡无卡 | 无遮挡午夜男女XX00动态 | 国产午夜精品理论片 | 狠狠人妻久久久久久综合九色 | 2014天堂网 | 青青视频观看免费99 | 国产亚洲福利在线视频 | 免费看黄色片网站 | 亚洲精品无码AV一区二区 | 国产激情一级毛片久久久 | 最近最新中文字幕完整版免费高清 | 国产成人精品亚洲精品一区色欲 | 五月天 亚洲 | 成人免费播放视频20242024 | 日韩精品高清自在线 | 亚洲日本无码高清一区二区 | 激情视频综合网 | 激情aa视频试看免费 | 日本内射精品一区二区视频 | 久久免费国产视频 | 亚洲 图片 另类 综合 小说 | 一个人看的www播放高清 | 欧美日韩成人高清色视频 | 很黄很肉很刺激的小说在线阅读 | 福利视频91 | 亚洲精品久久久久 | 在线视频www777788coom | 成人看片| a亚洲在线观看不卡高清 | 极品少妇粉嫩小泬啪啪AV | 亚洲 欧美 制服 另类 无码 | 真实国产乱子伦视频对白 | 色狠狠亚洲爱综合网站 | 麻豆国产精品久久人妻 | 亚洲高清毛片一区二区 | 国产a级精品特黄毛片 | 欧美の无码国产の无码影院 | 精品香蕉久久久爽爽韩国 | 一本三道a无线码一区v小说 |