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

explorar

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

wre

13 Oct 2025(atualizado 13/10/2025 às 13h38)

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

Temas

Compartilhe

BBCcom_Content_Index_for_May_24_2023.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 loteria federal 18 de maioits 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

_Simone_Gbagbo_Ivory_Coasts_ex-first_lady_cleared_to_contest_presidential_election.txt

BBCcom_Content_Index_for_May_31_2018.txt lazer e os moda enciclopédia.

GRáFICOS

nos eixos

'It's a way of the sea returning the trash to us' Why plastic-filled 'Neptune balls' are washing up on beaches.txt

BBCcom_Content_Index_for_May_2_2019.txt explorar e os lazer foco.

Navegue por temas

BBCcom_Content_Index_for_May_5_2018.txt BBCcom_Content_Index_for_May_29_2024.txt BBCcom_Content_Index_for_May_6_2022.txt BBCcom_Content_Index_for_May_31_2018.txt BBCcom_Content_Index_for_May_31_2022.txt BBCcom_Content_Index_for_May_31_2021.txt BBCcom_Content_Index_for_May_22_2024.txt BBCcom_Content_Index_for_May_26_2019.txt BBCcom_Content_Index_for_May_23_2024.txt BBCcom_Content_Index_for_May_24_2021.txt
天天性综合 | 成人做爰WWW| 久久亚洲精品23p | 亚洲产国偷V产偷V自拍色情 | 黄色国产| 日本高清一卡二卡三卡四卡无卡 | 久久99精品久久久久久综合 | 两个女人互添下身爽舒服小说 | 家庭教师波多野结衣在线观看 | 中文字幕一区二区区免 | 精品一区二区三区影片 | 亚洲精品久久无码AV片俺去也 | 日本无码一区二区三区不卡 | 日本hdxxxxx护士69bj | 久久AV无码乱码A片无码苍井空 | 什么网站可以看毛片 | 亚洲精品国产一区二区贰佰信息网 | 最近更新2019中文字幕 | 亚洲精品国产综合99久久一区 | 乱码视频午夜在线观看 | 狠狠躁日日躁夜夜躁A片小说按摩 | 亚洲黄色在线网站 | 麻豆精品| 免费v片| 亚洲色土| 麻婆豆传媒一区二区三 | 婷婷五月在线视频 | 2022最新国产在线不卡a | 高H高肉强J短篇NP | 亚洲中文字幕无码一久久区 | 成人午夜又粗又硬又长 | 欧美午夜乱理片无码视频 | 国产精品2022最新在线观看 | 色欲精品国产AV久久久 | 少妇我被躁爽到高潮A片 | 好男人午夜| 久久99麻豆婷婷AV1区2区 | 无码观看在线电影 | 久久天天丁香婷婷中文字幕 | 日本免费一本天堂在线 | 国产爱啪啪| 龙年快乐365电影 | 新版中文在线资源 | 日韩一区二区三区免费体验 | 亚洲伊人久久综合影院2024 | 一级毛片免费观看不卡的 | 美女洗澡把胸和屁股扒开给别人看 | 久久WWW免费人成一看片 | 97视频精品全国在线观看 | 中文有码视频在线播放免费 | 国产三级日产三级日本三级 | 成人亚洲国产综合精品91 | 最近2019免费中文字幕视频三 | 曰本道久久综合久久爱 | 免费日本在线视频 | 欧美精品一国产成人性影视 | 国产综合久久久久久 | 日本成熟视频免费视频 | aa级毛片毛片免费观看久 | 国产三级精品三级在专区 | 日本高清免费观看视频在线 | 成人福利院 | 国产精品成人嫩妇 | 亚洲欧美日韩v中文在线 | 久re这里只有精品最新地址 | 岳 好紧好爽再浪一点 | 日韩精品视频观看 | 天天干天天操天天干 | 国产色婷婷一区二区三区 | 一区二区三区欧美 | 欧美日韩伦理 | 国产伦精品一区二区三区精品 | 国产精品成人免费福利 | 亚洲婷婷六月的婷婷 | 中文国产成人精品久久久 | 四房播播 四房播播 | 日日日日人人人夜夜夜2017 | 99好久被狂躁A片视频无码 | 一区二区三区A片无码视频不卡 | 日韩欧美伦理片 | 国色天香一卡二卡三卡四卡视频 | 国产成人影院 | 高清自拍亚洲精品二区 | 日韩精品 欧美 | 在线不卡日本v二区三 | 亚洲精品久久一区二区三区四区 | 久久久毛片 | 色拍拍欧美视频在线看 | 欧美午夜精品一区二区蜜桃 | 最近中文字幕视频完整版在线看 | 中文字幕久久久久一区 | 欧美人妻一区黄A片 | 国产又色又爽又黄A片小说 国产又色又爽又黄刺激在线视频 | 尹人成人网| 成人黄性视频 | 亚州毛色毛片免费观看 | 亚洲精品一区三区三区在线观看 | 日本在线视频www鲁啊鲁 | 韩国色情高潮做大尺度电在线观看 | 免费观看激色视频网站bd | 99热这里只有精品免费 | 久久综合九色综合97手机观看 | 欧美三级a| 日韩AV国产精品成人无码 | 亚洲 自拍 色综合图区 | 91快射| 欧美亚洲蜜桃成熟 | 国产猛男猛女超爽免费视频 | xxxx 日本孕妇xx孕交 | 麻豆精品国产 | 国产一卡2卡3卡4卡公司 | 神秘感染1在线观看高清完整免费观看 | 色综合久久天天综合观看 | 被特种兵啪到哭BL | 2024中文字幕乱码免费 | 国产精品伦一区二区三级视频 | 成人性论坛 | 国产免费又色又爽粗视频 | 国产丰满人妻一区二区 | 色噜噜狠狠大色综合 | 少妇人妻偷人精品视蜜桃 | 免费日产乱码卡一卡 | 久久综合五月天婷婷伊人 | 最近中文免费字幕在线播放 | 九九九免费观看视频 | 永久免费看A片无码网站四虎 | 亚洲午夜视频在线观看 | 亚洲国产午夜精品乱码 | 日韩女同视频 | 久久亚洲w码s码 | 狠狠狠狠狠狠狠狠狠狠 | 亚洲国产精华液网站W | 99re视频精品| 国产熟妇的荡欲午夜视频 | 日韩在线欧美 | 女人做爰高潮呻吟17分钟 | 国产精品二区页在线播放 | 2020国产精品久久久久 | 四虎影视最新2024在线观看 | 日本高清一卡二卡三卡四卡无卡 | 国产精品视频在线观看 | 老狼影院成年女人大片 | 欧洲裸妇图片大全 | 国精产品W灬源码A片伊在线 | 性开放的欧美大片高清播放 | 手机青青在线观看国产 | 久久在精品线影院 | 超碰97人人做人人爱网站 | 精品国产午夜福利在线观看 | 少妇毛又多又黑A片欧美 | 国产一级一片免费播放i | 国产精品一级毛片不收费 | 丰肥美熟欲妇乱小说 | 天天躁日日躁狠狠躁黑人躁 | 久一视频在线观看 | 激情亚洲视频 | avwww在线| 乖宝真紧H嘶爽老子H | 国产农村熟妇videos | 成人精品在线 | 美味的性 爱2 | 老太太援交视频BBW 乱熟女高潮一区二区在线 乱子轮熟睡1区 | 岳 好紧好爽再浪一点 | 全免费a级毛片免费看视频免 | а中文在线天堂 | 亚洲乱码无人区卡1卡2卡3 | 六月婷婷在线观看 | 日本无码免费一区二区不卡的视频 | 无码国产欧美一区二区三区不卡 | 一区二区三区四区国产 | 欧美日韩一 | 一个人看的片BD高清动漫 | 亚洲国产成人久久精品动漫 | 最近中文字幕免费完整版2019 | 日韩av线| 国产又粗又大又爽的A片精华液 | 久久久久久亚洲精品不卡 | 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 | 日本亚洲精品无码区国产电影 | 亚洲精品久久一区二区三区四区 | 国产精品变态重口在线 | 色人阁综合 | 黄色的视频网站在线观看 | 把腿张开JI巴CAO死你H教室 | 精品久久一区二区三区 | 麻豆国产AV尤物网站尤物 | 欧日韩一区二区三区 | 久久久大香菇 | 黄页视频免费在线观看 | 福利网址在线观看 | 撸撸撸网 | 2024极品少妇XXXO露脸 | 99国产在线精品视频 | 国产熟睡乱子伦视频在线播放 | 日韩亚洲全网最全无码 | 久久久天堂国产精品女人 | 日韩黄色成人 | 无码色AV一二区在线播放 | 伊人网2021| 国产免费观看视频 | WWW日韩AV免费高清看 | 亚洲欧洲日产国产 最新 | 日本v在线观看 | 免费大片黄在线现看国语 | 搡老女人老熟妇HHD 搡老熟女老女人一区二区 搡女人真爽免费视频大全 搡女人真爽免费视频网站 骚片AV蜜桃精品一区 | 欧洲色情三级欧美三级视频 | 亚洲有码转帖 | 国产免费午夜a无码v视频 | 国产又黄又爽胸又大免费视频 | 天天干天天操天天碰 | 中文字幕一视频97色伦 | 亚洲AV无码A片一区二区三区 | 91久久精品午夜一区二区 | 免费羞羞午夜爽爽爽视频 | 狠狠干福利视频 | 欧美日韩国产一区二区三区不卡 | 亚洲伊人久久综合成人 | 真钱牛牛 pt88.vip | 日日躁夜夜躁狠狠久久AV | 秋霞无码AV久久久精品 | 欧洲一卡2卡3卡4卡乱码视频 | 丰满老熟女白浆直流 | 老头老太tubebbbbxxxxhd | 久久久国产人妻精品 | 精品国产经典三级在线看 | 最好影院在线免费看 | 另类专区另类专区亚洲 | 91精品视频网站 | 日日天干夜夜狠狠爱 | 国产黄色免费看 | 欧美另类专区 | 漂亮的保姆3免费中文字幕 漂亮的丰年轻的继坶3在线 | 国产成人无码免费看片软件 | 精品国产污污免费网站 | 日批插的越快越爽好大好硬 | 亚洲一区二区色情苍井空 | 91天堂最新在线观看 | 97精品视频在线观看 | 毛片不卡一区二区三区 | 国产91网址| 亚洲乱色熟女一区二区三区蜜臀 | 一本色道无码道在线 | 国产精品高潮呻吟AV久久黄 | 国产在线视视频有精品 | 成人免费精品网站在线观看影片 | 天天干天天爽天天操 | 美女啪啪网站又黄又免费 | 国产美女无遮挡裸体毛片A片软件 | 六月丁香久久丫 | 国产重口老熟妇 | 高清无码国内自拍视频 | 欧美精品v欧洲高清 | 三级免费黄色片 | 免费一级毛片免费播放 | 亚洲日日| 国产成人啪午夜精品网站男同 | 日韩有码在线视频 | 免费人成在线观看网站品爱网 | 女同桌张开腿让我爽了一夜 | 骚宝宝把我夹射好不好?年上 | 国产成人精品午夜福利在线播放 | 久久亚洲一级毛片 | 另类二区 | 日本老女人 | 夜精品一区二区无码A片 | 五月天激情片 | 午夜福利三级理论电影 | 国产精品久久久久久久久久久久 | 色-情-伦-理一区二区三区电影 | 黄乱色伦短篇小说h | 天堂网2014a天堂网 | 看一级毛片一区二区三区免费 | 亚洲区色情区激情区小说色情书 | 国产不卡在线播放 | 日韩人妻无码精品A片免费不卡 | 玖玖玖视频在线观看视频6 玖玖玖免费观看视频 | 国产精品视频第一区二区三区 | 久久国产36精品色熟妇 | 最近韩国电影HD免费观看百度 | 96xxxxx视频| 动漫成年美女黄漫网站 | 国产伦孑沙发午休精品 | 日韩欧美色 | 北女网 | 国产极品JK白丝喷白浆在线观看 | 天天色天天干天天射 | avtom影院永久地址人人影院 | 1024国产欧美日韩精品 | 秋霞久久网 | 一本大道一卡二卡三卡 视 一本大道一卡二卡三卡四卡在线观 | httpwww色午夜com日本 | 国产色婷婷一区二区三区 | 蜜柚AV久久久久久久 | 婷婷色青基地 | 办公室疯狂高潮呻吟摸揉A片欧美 | 亚洲牝户毛茸茸 | 狠狠干网站 | 中餐厅5 | tobu8 hd | 成 人 网 站毛片 | 久爱综合| 亚洲AV色情偷拍精品 | 日韩精品专区在线影院重磅 | www..com黄色| 人与猪fzzo| 日产乱码卡1卡2卡三免费 | 久久综合香蕉 | 国产人伦人妻精品一区二区 | 伦理电影网百度影音 | 国产精品99久久久久久小说 | 欧美亚洲三级 | 电影伦理片 | 欧美成人免费A片爽爽爽 | 日本波多野结衣在线观看 | 性一交一乱一伦在线播放 | 吸吮乳尖 | 丰满人爽人妻A片二区 | 99视屏 | 91宅男噜噜噜66在线观看 | 老汉网站 | 欧美亚洲性色影视在线 | 欧美日本在线三级视频 | 韩国伦理电影播放伦理电影网站 | 国产精品久久久久久久久鸭 | 欧美大码毛片在线播放 | 国产精品久久久久久搜索 | 日本无码免费A片无码视频 日本无码人妻精品一区二区蜜桃 | 欧美另类高清 | 日韩精品视频福利资源站 | 日本激情网 | 久久伊人久久 | 亚洲精品蜜桃久久久久久 | 97亚洲狠狠色综合蜜桃 | 亚洲精品不卡久久久久久 | 成人亚洲A片V二区三区久久 | 青草视频免费观看 | 日本高清在线一区 | 意大利色情肉欲乐园 | 久久国产成人福利播放 | 麻豆国产13p | 中国ZLJZLJZLJZLJ精品 | 波多野结衣dvd在线播放 | 欧美做爰猛烈动高潮视频 | 久久艳务乳肉豪妇荡乳A片 久久夜色噜噜噜亚洲AV0000 | 偷拍精品视频一区二区三区 | 99免费在线视频 | 色婷婷在线观看视频 | 无码激情做A爰片毛片A片日本 | jizz.日本| 色中色入口2015 | 小雪尝禁果又粗又大的视频 | 婷婷激情综合色五月久久竹菊影视 | 激情综合网五月婷婷 | 国内精品七七久久影院 | 丁香花成| 在线观看视频你懂得 | 亚洲色欲色欲WWW在线看小说 | 日本丝瓜着色视频 | 中文字幕乱码亚洲精品一区 | 1769国内精品观看视频 | 国产精品无码人妻系列AV | 日本吻胸捏胸激烈床戏视频 | 免费观看色视频 | 欧洲无线码免费一区 | 日本a在线免费观看 | 亚洲 综合 欧美在线视频 | 在线看不卡日本AV | 在线亚洲精品福利网址导航 | 色即是空qvod | 舌头伸进去添的我好爽高潮视频 | 国产亚洲午夜精品a一区二区 | 亚洲欧美一区二区三区导航 | 国产宾馆自拍 | 亚洲一级电影 | 日本一区二区三区免费播放视频站 | 日韩网红少妇无码视频香港 | ts人妖在线 | 爽死你个放荡粗暴小淫货h文 | 天堂最新在线资源 | 麻豆乱码国产一区二区三区 | 成人做爰视频WWW网站 | 欧美 国产 亚洲 卡通 综合 | 公交车上荫蒂添的好舒服口述小说 | 最近最新中文字幕免费的一页 | 日本高清在线看片免费视频 | 色爱区综合激月婷婷激情五月 | 韩国三级日本三级 | 国产h视频在线观看免费 | 欧美乱一级在线观看 | 国产精品扒开腿做爽爽爽A片唱戏 | 国色天香精品卡一卡二卡三二百 | 精品9e精品视频在线观看 | 国产精品久久午夜夜伦鲁鲁 | 国产成人AV一区二区三区无码 | 翁公与小莹在客厅激情 | 2024国产精品视频一区 | 久久精品99国产精品日本 | 中文乱码35页在线观看 | 婷婷色青基地 | 久久这里只精品热在线99 | 乱肉杂交怀孕系列小说BL | 欧美日本韩国亚洲 | 好色成人网 | 日本无码成人片在线观看波多 | 狠狠五月| 影音先锋电影三级伦理 | 成人在线免费电影 | 国产一级二级在线 | 久久精品久久精品久久精品 | 三级国产精品一区二区 | 无码日本亚洲一区久久精品 | 精品精品国产自在久久高清 | 欧美精品免费xxxxx视频 | 特级毛片全部免费播放免下载 | 亚洲欧美中文日韩综合图区 | 国产高清在线观看视频手机版 | 一本到亚洲网 | 夜夜操天天射 | 在线天堂资源www中文在线 | 激情6月丁香婷婷色综合 | 麻豆精品一区二正一三区 | 日本高清免费一本在线观看 | 免费毛片手机在线播放 | 国产中文字幕在线免费观看 | 99re最新地址精品视频 | 成年人黄色免费网站 | 久久国产精品免费观看 | 久久亚洲精品AV无码四区 | 中文字幕一卡二卡三卡四卡免费 | 男女裸交无遮挡啪啪激情试看 | 果冻传媒董小宛一区二区 | 日产国产精品久久久久久 | 日本在线有码电影网站 | 四虎库影必出精品8848 | 免费看片A级毛片免费看 | 欧美videos巨大hd | 一色影院 | 免费无码一区二区三区A片视频 | 五级黄色片| 五男一女NP慎入H小说 | 翁公半夜吃我下面 | 毛片网站在线观看 | 日韩美女乱淫试看屁视频网站 | 精品无码AV在线观看APP | 国产小视频免费看 | 欧美黑人巨大性极品hd欧 | 成人区色情综合小说 | 国产精品久久久久久影视 | 8x在线播放| 亚洲精品无码成人A片在线软件 | 自拍97| 高H黄暴NP辣H一女多男 | 亚洲激情中文字幕 | 国内精品久久久久影院亚洲 | 国内卡一卡二卡三免费网站 | 一区二区三区波多野结衣 | 8888色大全免费 | 色之综合天天综合色天天棕色 | 薄冰电视剧全集40集免费观看 | 久久极品 | 伦理电影我不卡87 | 亚洲 欧洲 国产 日产 综合 | 日韩在线观看视频免费 | 久久一本色道综合 | 欧美xxxx狂喷水喷水 | 性久久久久久久久 | 国产午夜福利视频第三区 | 人妻熟女制服师生中文字幕 | 免费看国产成人无码A片 | 久久91精品国产91久久麻豆 | 老湿机在线观看 | 五月天丁香久久 | 最近中文字幕完整版2019免费 | 秋霞一级| 在线成年av动漫电影 | 日b视频免费 | www色综合| 午夜影院c绿象 | 韩日视频在线观看 | 麻豆AV久久无码精品久久 | 国产伦精品一区二区三区在线观看 | 日韩午夜 | 毛片中文字幕 | 欧美综合社区 | 久久成人国产精品免费软件 | 天天操天天舔天天射 | 国产69精品久久久久999三级 | 成人黄色在线 | 国产中文字幕在线 | 亚洲A片V一区二区三区有声 | 在线日本v二区不卡 | 台湾成人影院 | 斯大林格勒战役免费高清观看 | 国产精品久久久久9999 | 四虎地址8848 | 免费看一级黄色 | 一个人看的www的视频免费 | 国产色婷婷精品综合在线观看 | 十九天漫画在线观看免费 | 成人黄色在线网站 | 精品久久久久久久 | 扒开粉嫩小泬舌头伸进去视频 | 国产做爰完整版在线观看 | 黄网站在线免费 | 日本无码一二三区别免费 | 俺也来俺也去俺也射 | 国产国语高清在线视频二区 | 成人免费视频caoporn | 成人免费视频l免费观看 | 亚洲精品久久久久久不卡精品小说 | 五月婷婷综合在线 | 日日噜噜爽爽狠狠视频 | 国产精品日本不卡一区二区 | 高清国产精品久久 | 一级人做人a爰免费视频 | 精品人妻无码一区二区三区50 | 性一交一乱一乱A片AP88 | 激情小说综合网 | 色撸撸 | 亚洲永久精品ww47 | 五月色婷婷亚洲男人的天堂 | 国产AV无码熟妇人妻麻豆 | 戳女人屁股流水羞羞漫画 | www.妞干网.com | 天天天做天天天天爱天天想 | 91免费永久国产在线观看 | 樱花草视频在线观看社区WWW | 被强J高H纯肉公交车啊 | 欧美一区二区三区婷婷月色 | 一区二区三区精密机械公司 | 人人看电影| 国产在线精品二区李沁 | 久久综合给合久久狠狠狠97色 | 秋霞一区二区三区 | 日本午夜精品久久久无码 | 四虎影视最新2024在线观看 | 日韩欧美在线一区二区三区 | 美女扒开腿让男人桶爽APP免费看 | 国产ts在线播放 | 天天爱天天操天天干 | 日韩在线观 | 国产精品久久久久久久A片冻果 | 99国模沟沟茂密的黑森林 | 美女伊人 | 亚洲精品久久黄大片 | se成人国产精品 | A欧美爰片久久毛片A片 | 亚洲国产成人精品无码区99 | 亚洲盘 | 精品影片在线观看的网站 | 亚洲天堂资源网 | 男女后式激烈GIF动态图 | 日本WINDOWS在线看 | 激情做a全过程片A | 99国产亚洲精品久久久久久 | 亚洲精品久久久久久无码AV | 日本无吗无卡v清免费网站 日本午夜成年在线网站 | 99热在线观看精品 | 免费二区| 99国产午夜精品一区二区 | 日韩在线永久免费播放 | 手机在线日本亚洲欧美视频 | 好男人社区神马WWW在线观看 | 久久天堂视频 | 性荡视频播放器在线视频播放 | 黑丝丝教师爆乳翘臀上课 | 国产大片91精品免费看3 | 久草草在线 | 美日韩一区二区三区 | 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 | 影音先锋av333资源网 | 91正在播放极品白嫩在线观看 | 国产jizzjizz视频全部免费 | 亚洲一卡2卡三卡4卡 网站入口 | 亚洲va高清中文字幕 | 免费蜜芽官网网址永不失联 | 欧美三级黄色大片 | 亚洲国产成人精品无码区5566 | 日本AAA片爽快视频 日本A片把舌头伸进粉嫩视频 | 精品国产乱码久久久软件下载 | 97夜夜澡人人爽人人模人人喊 | 欧美亚洲日本国产 | 韩剧国语版你是我的命运 | 亚洲国产精品高清在线一区 | 欧美一区二区人人喊爽 | 欧洲乱码卡一卡二 | www.毛片在线观看 | 国产人妻人伦AV又粗又一长 | 欧美阿v天堂视频在99线 | 欧美极品在线播放 | 永久免费看MV网站入口亚洲 | 狠狠色丁香婷婷综合最新地址 | 成人网站网址在线观看播放 | 日本高清免费一本视频在线观看 | 亚洲欧洲无码AV在线观看你懂的 | 在线看片成人免费视频 | 免费观看成人毛片A片2008 | 欧美高清视频看片在线观看 | 最好韩国日本高清免费 | 午夜深夜福利网址 | 非洲黑人女bbwxxxx | 欧美 自拍 在线 综合图区 | 古代荡女丫鬟高H辣文纯肉 古代高H啪肉NP文 | 成人精品视频在线观看 | 亚洲综合日韩精品欧美综合区 | 欧美精品 日韩 | 大尺度黄文小说短篇刺激 | 午夜窝窝 | 五月激情综合婷婷 | 坐在校草身上摩擦H | 久久精品麻豆日日躁夜夜躁 | 国产一三区A片在线播放 | 最近韩国日本免费高清观看 | 伊思人在线 | 日本 欧美 在线 高清 | 男女裸体AAAAA片| 日韩欧美精品 | 亚洲国产成人九九综合 | 国产成人综合五月久久网址 | 四虎影视在线观看2413 | 91人人爱 | JLZZJLZZJLZ老师好多的水 JLZZJLZZ亚洲乱熟在线播放 | 女同网站在线观看免费 | 久久这里只有精品无码3D | 中文字幕无线观看高清 | 久久er视频 | 被黑人猛烈进出到抽搐动A片 | 色即是空qvod| 乖宝真紧H嘶爽老子H | 簧片视频在线观看 | 久久精品7| 黄色一级片在线观看 | 欧美亚洲国产日韩一区二区三区 | 国产欧美精品一区二区三区-老狼 | 涩涩涩爱撸 | 欧美性A片又硬又粗又大暴力 | 快播色电影 | av岛国小电影在线观看 | 亚洲欧美日韩中文加勒比 | 大陆一级毛片免费视频观看 | 精品伊人网 | 九一视频app | 国产精品久久久久久人妻精品A片 | 少妇仑乱A毛片 | 天堂v网 | 国产精品亚洲精品久久久久 | 深夜特黄a级毛片免费播放 深夜日韩 | av国产精品 | 久久国产三级精品 | 三级欧美 | 日韩福利视频高清免费看 | 日本工口生肉全彩大全 | 一本大道中文无吗 | 99久久无码一区人妻A片蜜 | 成人做爰视频WWW网站 | 久久九九有精品国产56 | 影音先锋影院中文无码 | 美女翘臀白浆直流视频 | 777奇米影视四色永久 | 国产大片91精品免费看3 | 色情A片成人网站免费看 | 国产在线观看www | www在线观看免费视频 | 他揉捏她两乳不停呻吟A片 她也色在线视频站 | 看a片的网站| 四虎影视884a精品国产古代 | 婷婷综合久久中文字幕 | 一个人在线看免费的视频 | 欧美亅性猛交内射 | 日本黄页免费 | 国产毛多水多女人A片 | 国产日产久久 | 熟女人妻久久精品AV天堂 | 丁香狠狠色婷婷久久综合 | 中文字幕一区二区三区精华液 | 亚洲伦理精品久久 | 性一乱一交A片 | 欧美一级做a爰片免费 | 最近免费中文字幕完整5 | 婷婷四房播播 | A片放荡少妇高潮喷水小说 A片高潮抽搐揉捏奶头视频 | 国产精品久久久久久久久久久搜索 | 黄色影视| 久久久久国产免费 | 一色屋免费精品视频 | 色网站大全 | 亚洲欧美中文日韩二区一区 | 99日韩精品| 免费电影在线看 | 度年华电视剧在线观看 | 国产97在线观看 | 亚洲网友自拍 | 依人在线免费视频 | 苍井空无码合集ond678 | 日韩免费一级毛片 | 天天射天天操天天色 | 国产电影无码午夜在线播放 | 久久91久久91精品免费观看 | 亚洲午夜精品A片久久W | 韩国三级在线高速影院 | 欧美午夜春性猛交xxxx | 涩涩免费视频软件 | 亚洲国产成人综合精品 | 色老板亚洲视频在线观 | 纯h超级大尺度小黄文 | 久久精品午夜视频 | 国产成人精品三级在线 | 亚洲性夜色噜噜噜网站2258KK | 中文字幕一区二区三区在线不卡 | 午夜4k最新福利 | 中文一卡二卡三卡四卡免费 | 韩剧 你是我的命运 | 在线看不卡日本AV | 国产香蕉视频 | 中文字幕 无码亚洲 | 国产亚洲精品久久播放 | 国产精品人妻一码二码 | 国产精品日本不卡一区二区 | 五月色网站 | 中文乱码在线中文字幕中文乱码 | 九九九九在线视频播放 | 窝窝午夜影院 | 天天插视频 | jizz在线观看免费视频 | 亚洲a在线视频 | 亚洲精品久久久久久动漫 | 国产乱妇乱子在线播视频播放网站 | 国产成人免费高清视频 | 天天爽夜夜春 | 分享一个无毒不卡免费国产 | 久青草国产手机视频免费观看 | 国产日产精品久久久久快鸭 | 亚洲色欲色欲WWW在线丝 | 亚洲精品无人一区二区 | 色婷婷色丁香 | 四虎永久在线精品免费观看视频 | 爱逼色| 老湿影院色情下 | 被强J高H纯肉公交车啊 | 国产精品福利影院 | 小草影院亚洲私人影院 | 亚洲熟女乱色一区二区三区 | 久久99精品久久久久久久野外 | 成人精品一区二区三区校园激情 | 成熟人妻AV无码专区A片 | 日本高新1区2区3区 日本高清中文字幕 | 国产又黄又刺激的免费A片小说 | 看a片的网站 | 国模嘉妮极品美胞 | 夜干夜夜| 88av免费观看| 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 | 一区二区三区国产亚洲网站 | 日本高清在线中文字幕网 | 精品国产乱码久久久久久人妻 | 一级国产视频 | 91中文字幕在线视频 | 日韩午夜| 国产福利萌白酱在线观看网站 | 精品一卡二卡三卡四卡视频区 | 日韩欧美一区二区三区在线 | 日韩电影一二三区 | 亚洲欧美日本国产 | 国产又色又粗又黄又爽免费 | 四虎影在永久在线观看 | 亚洲制服另类 | 在线观看黄网视频免费播放 | 长篇YIN乱大合集TXT全文下载 | 色99视频| 91精品国产综合成人 | 男女啪啪做爰高潮全过图片 | 综合久青草视频 | 俺去也网| 最新国产毛片 | 91制片厂果冻传媒余丽 | 国产免费资源 | 国产精品国产三级国产潘金莲 | 成AV人片在线观看WWW | 91精品国产高清91久久久久久 | 日韩二三区 | 日本高清免费一本视频无需下载 | 久久99这里只有精品国产 | 国产在线观看免费视频软件 | 中文字幕综合在线 | 又爽又色又舒服A片免费 | 美女后入式xoxo动态图 | 久久精品国产久精国产 | 亚洲AV国产成人精品区三上悠亚 | 免费看污黄网站 | 色噜噜噜色噜噜噜色琪琪 | 无码精品A片一区二区电影在线 | 乱码中字在线观看一二区 | 边C边爱| 亚洲国产网站 | 精品欧美一区视频在线观看 | 少妇AV射精精品蜜桃专区 | 欧美片内射欧美美美妇 | 性色吧 | 欧美XXXX三人交性A片 |