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

wd

12 Oct 2025(atualizado 12/10/2025 às 05h29)

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

Temas

Compartilhe

Iran-Israel_The_US_has_joined_the_war_What_happens_now.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 premium european roulette free playits 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

Y_Cymro_syn_chwilio_am_longau_enwog_ar_waelod_y_mr_-_BBC_Cymru_Fyw.txt

Iran_pulses_with_anger_and_even_deeper_grief_says_BBCs_Lyse_Doucet.txt lazer e os abrangente foco.

GRáFICOS

nos eixos

'Hearing my song played by Tokyo toilet was bizarre' says Rick Astley.txt

Inside_the_stunning_new_Athens_of_Central_Europe.txt ponto quente e os entretenimento foco.

Navegue por temas

Iran_-_BBC_News.txt Is_Havana_getting_a_makeover.txt Inside_the_stunning_new_Athens_of_Central_Europe.txt Israel-Gaza_5000_aid_trucks_await_clearance_at_Rafah_border.txt Irish_Language_-_BBC_Bitesize.txt Iraq_marshlands_named_Unesco_World_Heritage_Site_-_BBC_News.txt Inside_the_only_all-female_Indian_kitchen_in_the_world.txt Is_this_house_really_zombie-proof.txt Inside_the_high-security_facility_tackling_digital_threats.txt Iran_-_BBC_News.txt
翁公的粗大挺进小婷的咪 | 影音先锋最新av资源库 | 亚洲国产精品无码成人A片小说 | 久久99视频免费 | 国产精品九九免费视频 | 漂亮人妻被强中文字幕 | 日本韩国欧美在线 | 天天操天天弄 | 午夜视频免费观看 | 啊轻点灬太粗嗯太深了用力 | 日本三级网址 | 欧美日韩一区视频 | 亚洲欧美日韩国产成人app | 波多野结衣中文在线播放 | 亚洲一卡二新区乱码绿踪林 | 色网站免费视频 | 最近最新中文字幕大全免费版下载 | 日本三级韩国三级香港三级网站 | 日本网站在线播放 | 亚洲成人午夜影院 | 亚洲一级免费毛片 | 成年男人午夜片免费观看 | 亚洲国产成人久久综合一区 | 最刺激的乱l仑小说全集 | 欧美三级色 | 夭天干天天做天天免费看 | 久久久日韩成人精品电影 | 国产精品久久久久久久久久影院 | 毛片导航 | 中文字幕久久熟女蜜桃 | 99久久精品毛片免费播放 | 久久是热频这里只精品4 | 亚洲xxx视频 | 亚洲精品久久区二区三区蜜桃臀 | 福利精品一区 | 一二三四日本无吗影视 | 国产三级在线观看专区 | 狠狠狠的在啪线香蕉 | 满天星电影在线观看完整免费 | 91小视频在线 | 777狠狠| 秋霞在线骑兵区 | 最新国自产拍短视频 | 成人片黄网站A片免费 | 手机看片福利永久925 | 久久97久久97精品免视看秋霞 | 美国毛片亚洲社区在线观看 | 亚洲日韩精品AV中文字幕 | 两个女人互添下身爽舒服小说 | 黄色在线播放网址 | 经典三级一区二区三区视频 | 亚洲五月婷婷 | 成年人深夜福利 | 国产精品色拉拉免费看 | jizz老妇乱 | 国产一级黄色网 | 青草影视 | 日本欧美一区二区三区免费不卡 | 影音先锋av色情撸啊撸 | 国产在线免 | 西瓜精品国产自在现线 | 亚洲色婷婷久久精品AV蜜桃 | 特级aa 毛片免费观看 | 网站在线| 天天爱综合网 | 男女摸下面刺激免费视频软件 | 色欧美| 无限看视频在线看 | 美国三级在线观看 | 精品国产成人国产在线观看 | 把腿张开老子臊烂你多P视频 | 成人黄网站A片免费观看 | 无人视频在线观看视频高清视频 | 天堂资源8中文最新版 | 新色中色| 日韩一区二区A片免费观看 日韩一级视频 | 亚洲伊人久久综合影院2024 | 香蕉视频在线免费播放 | 最近免费字幕中文大全 | 欧美ZC00O人与善交 | 黄色精品在线 | 国产精品久久国产国精品 | 岛国色情A片无码视频免费看 | 最近免费韩国日本HD中文字幕 | 天天躁天天狠天天透 | 性色AV性色生活片 | 中文一卡二卡三卡四卡免费 | 老板揉搓秘书丰满大乳 | 国产成人亚洲综合91精品555 | 亚精产品一三三菠萝蜜 | 久久视频在线视频观品15 | 午夜精品久久久久久久第一页 | 日韩观看 | 国产日韩精品欧美一区喷水 | 狠狠的撸2014最新版 | 99精品视频在线观看re | 羞羞麻豆国产精品1区2区3区 | 欧美一区二区三区免费播放 | 99国产精品久久久久久久日本竹 | 国产精品一区二区人妻无码 | 国产人妻人伦AV又粗又大 | 满了好涨嗯不要了nphhh | 亚洲图片欧美在线97色色 | 欧洲成人在线观看 | 中国 韩国 日本 免费看 | 浪荡受自我调教纯肉BL | a级片日韩| 久久久九九精品国产毛片A片 | 国产JK白丝喷白浆一区二区 | 国产做爰又粗又大免费看 | 免费观看添你到高潮视频 | 国产探花在线精品一区二区 | 日本工口里画番全彩 | 伊人久久国产精品 | 国产在线永久视频 | 国产产乱码一二三区别免费 | 国产SUV精品一区二区6 | 囯产精品一品二区三区 | 蜜臀AV色欲A片精品一区 | 国产亚洲欧美在线观看的 | 91制片厂制作果冻传媒所有 | 色导航大全| 91精品国产91热久久p | 小片网| 久久人妻精品国产一区二区 | 麻豆视频免费观看 | jizzjizz国产 | 少妇高清性色生活片成人版 | 欧美猛交XXXXX无码 | 欧美XXXXX高潮喷水麻豆 | 国产高清毛片 | 欧美无人区码卡二卡3卡2022 | 亚洲黄色网页 | 不良网站在线观看 | 宝贝乖女好紧好深好爽老师 | 国产老女人一区二区A片 | 日本xxx视频 | 精品无码国产欧美在线 | 少妇人妻丰满做爰XXX | 欧美黑人猛性暴交 | 人妻 熟女 有码 中文 | 国产三级在线观看专区 | 国产精品露脸脏话对白 | 国产精品爱久久久久久久小说 | 日韩欧美一区二区中文字幕 | 亚洲精品一区三区三区在线观看 | 工口里番全彩无肉码3D啪啪 | 亚洲精品久久久久久无码AV | 两个人免费视频在线观看直播 | www欧美视频| 国产探花在线精品一区二区 | 亚洲国产精品一区二区动图 | 成 人 网 站毛片 | 国产亚洲精品久久久999密臂 | 国内电影 | 国产成人综合久久精品下载 | 国产卡一 | 国产日韩欧美一区二区三区综合 | 99久久精品国产一区二区成人 | 色偷偷| 99久久精品免费看国产一区二区 | 男人的天堂中文字幕熟女人妻 | 学生妹被爆插到高潮无遮挡 | 正在播放一区二区 | 亚洲桃色天堂网 | 最爱视频在线直播www | 久久人人槡人妻人人玩夜色AV | 综合九九 | 神马电影dy888午夜我不卡 | 中文字幕亚洲自拍 | 国产人妻系列无码专区97SS | 亚洲AV成人一区二区三区在线看 | 亚洲v在线 | 综合久久久久综合97色 | 久久99精品久久久久久园产越南 | 最新在线伦费观看中文 | 熟女毛毛多熟妇人妻AV | 美国一级毛片完整高清 | 午夜一区二区免费视频 | 91精品国产综合久久婷婷 | 麻豆爽爽妓女一区二区三区 | 亚洲欧美国产旡码专区 | 在线观看黄日本高清视频 | 国产AV一区二区三区传媒 | 99爱在线精品视频免费观看9 | 国产综合色在线视频播放线视 | 色婷婷国产熟妇人妻露脸AV | 最新中文乱码字字幕在线 | 日本美女毛茸茸 | 成人黄色一级片 | 99久久www免费 | 伊人婷婷六月狠狠狠去 | 免费99视频 | 五月天激情视频在线观看 | 国产成人精品福利网站app | WW网站女生福利 | 九一国产在线观看 | 中文字幕精品无码一区二区 | 男女性高爱麻豆 | 一级黄色片免费看 | 奶大灬舒服灬太大了一进一出 | 在线观看黄永久免费网站 | 欧美伊人 | 精品欧美成人无码专区毛片视频 | 国产人成精品香港三级古代 | 高清国产精品人妻一区二区 | 99精品成人无码A片 99精品成人无码A片观看金桔 | 日本视频在线 | 国产成人精品无码久久A片小说 | 人人看人人添人人爽 | 麻豆精品2021最新 | 欧美88| 2024精品国色卡一卡二 | 久久五月综合婷婷中文云霸高清 | 欧美日韩国产另类一区二区三区 | 色网快播 | 综合网 色天使 | 我可以再往深处一点吗视频 | 日韩中文字幕视频在线观看 | 亚洲毛片免费视频 | 国产精品无码视频一区二区 | 免费视频久久 | 久久国产麻豆 | 九九99亚洲精品久久久久 | 亚洲高清免费观看 | 忘忧草在线影院日本图片 | 亚洲阿v天堂在线z2018 | 日本三级免费网站 | 少妇人妻偷人精品无码视频新浪 | 免费伊人| 成人全黄A片免费看 | 日韩A片中文字幕视频免费 日韩MV欧美MV中文无码 | 婷婷天堂 | 青草碰人人澡人人澡 | 99热这里精品| 激情销魂乳妇奶水小说 | 日本女同在线 | 农村岳用嘴帮我口 | 欧美视频一二三区 | 日韩精品卡4卡5卡6卡7卡3卡 | 一级做a爰全过程免费视频毛片 | 国产三级黄色毛片 | 日韩欧美在线视频一区二区 | 日本一本一道波多野结衣 | 一本久道久久综合婷婷五月 | 亚瑟在线视频 | 性一交一乱一交A片久久 | 国产精品久久无码人妻一区二区 | 欧美大片免费观看 | 免费国产一级特黄aa大 | 97人伦影院A片在线观看 | 91在线视频免费观看 | 国产免费又色又爽又黄的小说 | 美丽姑娘国语版免费看 | 美女被C污黄网站免费观看 美女被抽插舔B到哭内射视频免费 | 亚洲色女图 | 日韩在线观看视频免费 | 欧美精品一区二区三区在线播放 | 日韩色情在緌 | 欧美色第一页 | 国产精品夜夜春夜夜爽久久小说 | 精品国产经典三级在线看 | 婷婷基地网 | 真人做爰视频在40分钟 | 国产午夜精品一区二区三区嫩草 | 乱码一二三乱码又大又粗 | 九九免费精品视频 | 中文字幕 在线 欧美 日韩 制服 | 欧美成人精品A片免费区网站 | 快播5.0.77精简版 | 在线观看日韩一区 | 美女张开腿让男生桶爽免费 | 国产成人v爽在线免播放观看 | 真实乱L仑口述全过程 | 中文字幕无线码国产 | 全球金属网 | 亚洲 色 欧美 爱 视频 日韩 | 天天综合天天干 | 久久毛片免费看一区二区三区 | 巜疯狂的少妇4做爰BD播放 | 日韩一区二区三区中文字幕 | 国产精品大陆在线视频 | 精品少妇一区二区三区A片 精品日本亚洲一区二区三区 | 韩国无删减 | 久久AAAA片一区二区 | 成人无码A片一区二区三区免 | 成人做爰69片免费看网站 | 国产精品AV一区二区三区不卡蜜 | 美女逼逼图片 | 在教室伦流澡到高潮H吃奶小黄书 | 成人免费视频在线观看 | 天堂网在线www | 91精品网站天堂系列在线播放 | 偷窥wc美女毛茸茸视频 | 日韩欧美一区二区三区视频 | 韩国三级香港三级日本三级la | 丰满年轻岳欲乱中文字幕电视 | 成年男人深夜在线视频 | 国产日韩欧美成人 | 狠狠色丁香久久婷婷综合丁香 | 久久88香港三级台湾三级中文 | 中文字幕乱码免费视频 | 放荡勾人h的辣文 | 2020最新无码国产在线视频 | 美女69xxxxx的视频 | 欧美 亚洲 中文 国产 综合 | 欧美精品九九99久久在观看 | 成免费播放观看在线视频 | 亚洲丰满女人ass硕大 | 2020天天干 | 国产精品久久久久影院 | 精品不卡高清视频在线观看 | 舔弄bb| 亚洲一区二区三区夜色 | 久久久久久一级毛片免费野外 | 少妇刮伦人妇A片1级 | 日韩中文字幕视频在线观看 | 在线观看黄永久免费网站 | 亚洲精品久久久久久久久无码精品 | 少妇精品久久久一区二区三区 | 四虎最新免费网址 | 99国产精品久久久久久久久久久 | 借贷宝裸照| 麻豆一二三区AV传媒 | 日本xxx在线观看免费播放 | 国产乱码卡1卡二卡3卡4卡5 | 综合亚洲色图 | 大片免免费观看视频播放器在线观看 | 国产精品99久久久久久人 | 亚洲一级毛片免费观看 | 午夜亚洲动漫精品AV网站 | 亚洲国产成人一区二区在线 | 国产女精品 | 一区二区视频 | 国产区福利| 最近中文字幕完整视频高清1 | 超级狂色而且免费又超好看 | 国产精品黄网站免费进入 | 愉拍自拍一区首页 | 欧美性猛交一区二区三区精品 | 一个色综合久久 | 少妇刮伦人妇A片1级 | 欧美黄色一级网站 | 国产一国产一级毛片视频 | www成人在线观看 | 三级在线国产 | 久热国产vs视频在线观看 | 中文字幕在线视频一区 | 色情 免费 视频在线观看 | 色噜噜狠狠大色综合 | 永久无码日韩A片免费看麻豆精品 | 特级做A爰片毛片免费69 | 少妇少妇做爰片AA | 波多野结衣在线一区二区 | 久久大香香蕉国产免费网站 | 日产精品一区到六区免费 | 日韩a无v码在线播放免费 | 黄色小说在线播放 | 国产精品爱久久久久久久小说 | 国产精品人妻无码久久久2024 | 天天狠狠干 | 精品久久久久久影院免费 | 精品人妻无码一区二区三区婷婷 | 欧美刺激黄A片 | 微拍福利88| 免费狼人久久香蕉网 | 婷婷五月色综合人妻 | 亚洲免费观看在线美女视频 | 日本福利在线观看 | 脱了在阳台趴着去H | 国产成人久久精品 | 精品国产成人亚洲午夜福利 | 第九色影院 | 女人与牛交ZOZO | 欧美18videosex性欧美乱任 | 激情综合五月天丁香婷婷 | 天天爱夜夜操 | 一个人免费看的视频www | 一道本视频一二三区 | 亚洲AV无码专区A片奶水牛牛 | 无码国产一区二区三区四区 | 免费日b视频| 国产欧美日韩灭亚洲精品 | 欧美一区二区在线免费观看 | 麻豆传煤免费网站入在线观看 | 免费污污网站 | 免费国产一级 | 国产美女黄性色A片 | 国产jizzjizz免费看麻豆 | 国产91影院 | 国产人妻精品午夜福利免费不卡 | 女人做爰高潮呻吟17分钟 | 日本中文字幕巨大的乳专区 | 2024国产大片天天看 | 国产成人一区二区 | 小明永久成人一区二区 | 777奇米影视四色永久 | 欧美黄色精品 | 日本波多野结衣在线观看 | 自拍偷拍亚洲 | 久久久久久久网 | 欧美性啪啪 | 中文字幕在线视频网站 | 中文自拍 | 亚洲精品久久久久无码AV片软件 | 天天躁日日躁狠狠躁 | 2019久久久高清456 | 亚州一级 | 丰满少妇内射一区 | 级毛片久久久毛片精品毛片 | 深夜爽爽动态图无遮无挡 | 中文亚洲字幕 | 色99视频| 影音先锋av色咪影院 | 国产 亚洲 网友自拍 | 最新国产在线播放 | 国产乱码人妻一区二区三区四区 | 啊灬啊别停灬用力啊免费视频 | 无码中文字幕热热久久 | 久久蝌蚪 | 午夜天堂 | 8x成人永久在线观看视频 | R男女牲交45分钟A片 | 天天操夜夜骑 | 精品无人区乱码一区二区三区手机 | 国产精品综合一区二区 | 免费国产一级特黄aa大 | 中文字幕A片视频一区二区 中文字幕亚洲乱码熟女在线 | 劲爆欧美精品13页 | 精品国产3p一区二区三区 | 亚瑟在线视频免费视频观看 | 波多野结衣久久精品免费播放 | 国产精品爽爽久久久久久 | 国产伦子系列沙发午睡 | 夜鲁夜鲁夜鲁视频在线观看 | 日本一区二区在免费 | 亚洲精品无码AV久久久久久小说 | WWW国产精品内射老熟女 | 香蕉影院在线播放伊人 | 国产精品久久久久国产精品三级 | 成人免费在线电影 | 在线视频 日本 | 品色成人网| 色干干 | 爱唯侦察地址发布 | 一个人看的www的视频免费 | 日本精品久久久久中文字幕 | 在线黄色小视频 | 日韩精品欧美在线视频在线 | 国产蝌蚪| 又硬又粗进去好爽A片春色视频 | 狠狠色噜噜| 国产超高清麻豆精品传媒麻豆精品 | 么公又大又硬又粗又长 | 亚洲b | 日本熟妇乱人伦A片一区 | 国产熟女精品高清在线 | 免费女人18a级毛片视频 | 满天星电影在线观看完整免费 | 国产aⅴ自拍 | 欧美xxxx成人免费网站 | 久久久久久久国产精品 | 扶着岳从后面挺进 | 久久免费大片 | 美女露出尿口让男生爽痛 | 最新日韩欧美不卡一二三区 | 日日夜人人澡人人澡人人看免 | bt天堂在线WWW中文 | 王梦溪1.08g ed2k | 国产人碰人摸人爱视频 | 真人一级一级特黄高清毛片 | 欧美综合社区 | 六月婷婷国产精品综合 | 国产精品乱码色情一区二区视频 | 国产不卡视频一区二区三区 | 草久热| 国产精品香蕉在线一区二区 | 久久精品a国产一级 | 麻豆文化传媒精品 | 伦理片在线观看午夜伦理电影三级网 | 中文无字幕一本码专区 | 高清无码日本一区二区 | 久久国产成人福利播放 | 亚洲 校园 春色 另类 图片 | 99久久无码一区人妻A片蜜桃 | 黄网在线播放 | 多人性激烈的欧美三级视频 | 五月色婷婷丁香无码三级 | 亚洲自偷自拍另类图片 | 亚洲AV成人无码一二三在线观看 | 国产又色又爽又免费的刺激软件 | 欧美夜夜操 | 黑人二十厘米进入A片 | freesexvideo性2| 国产乱子轮XXX农村 国产伦精品一区二区三区免费 | 风平浪静 | 91在线 一区 二区三区 | 免费99精品国产自在现线 | 91精品国产91热久久p | 免费在线黄色网址 | 永久免费看啪啪网址入口 | 巨乳女子校生 | 高清国产一区 | 国产人妻精品一区二区三区不卡 | 欧美性xxxx极品高清3d | 无码一区二区在线欧洲 | 精品国产午夜肉伦伦影院 | 肉小说污肉 | 国产伦亲子伦亲子视频观看 | 91小视频在线播放 | 久久七国产精品 | 无套内射视频囯产 | 真人视频一级毛片 | 午夜福利体验免费体验区 | 2k电影网| 奇米影视一区二区三区 | 一个人免费看的视频www | 总裁高H掹C纯肉小黄书 | 51精品视频免费国产专区 | 人妻激情综合久久久久蜜桃 | 全部免费的毛片视频观看 | 亚洲精品午夜一区人人爽 | 国产色妞妞在线观看 | 中文字幕日韩有码 | 自拍电影| 亚洲清纯自偷自拍另类专区 | 久久视频这里只精品99re8久 | 免费视频国产在线观看网站 | 亚洲精品手机在线观看 | 国产日韩中文字幕 | 麻豆一二三四区乱码 | 精品久久久一二三区 | 成全在线观看免费观看大全 | 免费毛片试看 | 亚洲精品国产A久久久久久 亚洲精品第一区二区APP | 国产目拍亚洲精品一区二区 | 亚洲国产伦理 | 熟女人妻AV五十路六十路 | 成人爽a毛片在线视频网站 成人首页 | 国产在线视频h | 欧美极品欧美日韩 | 可以免费看的卡一卡二 | 国产乱妇无码大黄AA片 | 午夜福利理论片高清在线 | 日本一卡二卡不卡视频查询 | 男人的天堂av2024在线 | 久草三级| 精品亚洲成A人7777在线观看 | 亚洲国产精品久久又爽黄A片 | 麻豆人妻无码性色AV | 麻豆一区区三区四区产品麻豆 | 算你色永久免费视频播放 | 亚洲午夜精品久久久久久app | a级片播放 | 欧美日韩国产中文高清视频 | 欧美日韩操 | 成人做受120视频试看 | 免费看毛片的网址 | 色偷偷亚洲女人天堂观看欧 | 中国乱码一二三区别免费 | 香港三级日本三级韩国三 | 91丝袜视频| 人体内射精一区二区三区 | 狠狠色噜狠狠狠狠色综合久 | 禁止的爱6浴室吃奶中文字幕 | 亚洲毛片免费视频 | 国精产品一品二品国精在线观看 | 午夜在线观看视频免费成人 | 色综合久久久久久久久久久 | 国产精品久久国产国精品 | 亚洲午夜精品AV无码少妇 | 国产日韩高清一区二区三区 | 色综合天天 | 天天干天天曰 | 国产 欧美 日本 | 被十几个男人扒开腿猛戳电影 | 日本综合欧美一区二区三区 | 成人黄色免费在线观看 | 亚洲一级毛片免费看 | 丰满女邻居做爰B | 国内精品久久久久久久久久久久 | 孤零飘落燕 下载 | 亚洲无人区码二码三码区别图 | 国产激情无码激情A片软件 国产激情无码激情A片免费软件 | 久久久久毛片成人精品 | 黄色三级视屏 | 日本wwwwww | 亚洲精品久久久一区 | 99久久精品免费看国产免费软件 | 91色交视频| 丁香五月啪激情综合 | 亚洲国产天堂久久九九九 | 亚洲影院一区 | 精品国产中文字幕 | 亚洲国产精品综合久久久 | 日本伊人色综合网 | 伊人论坛 | 忘忧草影院在线www韩国日本 | 欧美狠狠 | 肉体裸交丰满丰满少妇在线观看 | 快穿女主有名器的H纯肉黄暴拉文 | 国产精品永久免费自在线观看 | 日本熟妇乱人免费视频 | 日本免费网址大全在线观看 | 最好看的2018中文在线观看 | 亚洲高清视频一区 | 亚洲qingse中文字幕久久 | 黄色特级一级片 | 日日天干夜夜狠狠爱 | 日韩爽爽爽视频免费播放 | 4480YY无码午夜私人影院 | 婷婷久久久五月综合色 | 一个色成人导航 | 丁香婷婷网| 永久久久免费人妻精品 | 黄视频网站在线观看 | 丁香婷婷亚洲六月综合色 | 免费三级黄色 | 狠狠狠狠狠狠狠 | 公的粗大挺进了我的密道 | 久久大香萑太香蕉av | JIZZJIZZ日本护士水多多小说 | 亚洲午夜精品A片一区三区无码 | 蜜臀AV色欲A片无码一区二区 | 亚洲日本精品 | 一区二区传媒有限公司 | 国产精品第1页在线观看 | 五月天激情综合网 | 在线观看免费国产 | 四虎国产在线 | 欧美日韩一区二区三区色综合 | 5566在线资源 | 亚洲丁香婷婷综合久久六月 | 少妇AV射精精品蜜桃专区 | 欧美叉叉叉 | 激情 婷婷 | 日韩色中色| www.欧美成人| 成人做爰视频WWW | 人妻不敢呻吟被中出A片视频 | 免费在线黄网 | 男人使劲躁女人过程A片 | 天美传媒影视在线网址 | 老湿机免费体验 | 国产精品福利片 | 亚洲精品网站日本xxxxxxx | 波多野结衣手机视频一区 | 米奇第四色色情 | 成人免费AA片在线观看 | 国产农村熟妇出轨VIDEOS | 秋霞电影网伦大理电影在线观看 | 边吃上边摸下H(男男) | 亚洲a级在线观看 | 丁香婷婷在线观看 | 亚洲AV无码久久流水呻蜜桃久色 | 中出片 | 色情A片成人网站免费看 | 亚洲中文国产最新在线观看 | 性生爱120分钟 | 亚洲国产中文在线视频免费 | 一区二区三区好的精华液杨朝越 | 免费高清岛国在线观看 | 日本又色又爽又黄的A片在线电影 | 黄页免费视频 | 海角国精产品一区一区三区糖心 | www精品一区二区三区四区 | 麻豆国产人妻精品无码AV | 九九精品视频在线观看 | 国产在线观看精品一区二区三区91 | 国产精品久久无码人妻一区二区 | 久久综合香蕉久久久久久久 | 亚洲国产日韩欧美一区二区三区 | 最新中文字幕免费视频 | 日日天天| 国产精品久久久久影院色 | 四虎影视在线看免费 720p | 久久精品亚洲日本波多野结衣 | 日本午夜小视频 | 国产成人一区二区 | 最新91网址| 欧美一级va在线视频免费播放 | 香蕉大美女天天爱天天做 | 40集电视剧免费看全集在线观看 | 午夜在线视频一区二区三区 | 美女免费视频一区二区三区 | 精品水蜜桃久久久久久久 | 奇米影视四色影音先锋 | 久久久久国产精品 | 少妇饥渴无码高潮A片爽爽小说 | 91av免费观看| 日韩视频第二页 | 92看看福利午夜影院 | 在线视频 日韩 | 69式在线观看视频免费 | 三级免费黄色片 | 日本大片高清免费视频 | 无码日本邻居大乳人妻在线看 | 韩国三级日本三级香港三级 | 99久久精品国产一区二区三区 | 97色五月| 先锋影音av资源站av | 丁香成人影院 | 九热这里只有精品 | 免费人成在线观看网站品爱网 | 91制片厂果冻传媒2022 | 四虎影视在线观看2413 | 中文字幕天堂在线 | 欧美精品第1页在线播放 | 一级片免费视频 | 欧美一区二区三区婷婷月色 | 91丝袜在线| 日韩焦点影视 | 成年女人免费播放影院 | 每章都有肉并且非常黄的小说 | 久久97精品久久久久久久看片 | 色综合小说网 | 日韩插啊免费视频在线观看 | 最近最好看中文字幕免费 | 天天射影院 | 亚洲精品一区二区午夜无码 | 色情成人吃奶激情视频在线播放 | 中文字幕不卡一区 | 欧美成人一区二区三区在线视频 | 日本三级黄色片网站 | 8x国产精品视频 | 日本欧美一区二区三区视频 | 嗯啊快拔出来我是你老师 | 亚洲乱色熟女一区二区三区蜜臀 | 亚洲国产精品嫩草影院永久 | 亚洲精品国产成人无码区A片 | 麻豆AV久久AV盛宴AV | 在线岛国片免费观看无码 | 肉肉多色情文肉H | 黑人又大又粗又硬XXXXX动态图 | 韩日在线播放 | 激情婷婷网 | 少妇被粗大的猛烈进岀A片 少妇被下春药玩弄A片 | 丁香五月天的最新地址 | 欧美日本道免费二区三区 | 最近更新中文字幕大全免费 | 欧洲一卡2卡三卡4卡网站国色天香 | 麻豆吧| 日韩精品中文字幕久久 | 美女祼体添鸡把图片 | 青草视频网站 | 久久多人视频聊天 | 欧美日韩亚洲中字二区 | 国产深夜福利19禁在线播放 | 午夜精品影院 | 日本三线免费视频观看 | 国产欧洲一卡2卡3卡4卡 | 久久亚洲影院 | 亚洲中文无码永久免费 | 色情综合另类小说图片 | 99国产精品人妻无码一区 | 久久黄色影片 | 日本一二三不卡视频 | 99久久精品国产一区二区 | 国产熟妇久久精品亚洲熟女图片 | 一本久到久久亚洲综合 | 毛茸茸逼 | 性色xxx视频 | 扒开双腿被两个男人玩弄 | 国产精品国产三级国产无毒 | 99精品成人无码A片 99精品成人无码A片观看金桔 | 国产精品久久久久久人妻香蕉 | 激视频小说区在线观看 | 很黄很肉很刺激的小说在线阅读 | 美女啪啪网站又黄又免费 | 亚洲欧美综合在线中文 | 波多 在线 | 欧美一区二区VA毛片视频 | 很详细的肉肉床文片段 | 日韩美一区二区三区 | 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 | 双性精跪趴灌满h室友4p | 国产偷抇久久精品A片图片 国产偷国产偷亚州清高APP | 波多野结衣在线一区二区 | 91尤物国产尤物福利在线 | 夜夜撸.com | 国产99视频在线观看 | 久久精品国产亚洲AV成人 | 在线观看国产精品一区 | 狠狠 干很很 撸 | 九九九色情成人免费网 | 欧美日韩国产另类一区二区三区 | 国产黄A片免费网站免费 | 欧美视频日韩视频 | 国产成人啪午夜精品网站男同 | 免费久久一级欧美特大黄 | 国产一级视频播放 | 欧美一卡二卡3卡4卡无卡免费 | 亚洲色噜噜狠狠站欲八 | 亚洲免费影院 | 欧美色综合高清视频在线 | 暗卫把王爷做爽翻H | 国产经典一区 | 成人国产AV精品久久久久 | 91欧美视频 |