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

lazer

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

pqod

13 Oct 2025(atualizado 13/10/2025 às 02h36)

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

Temas

Compartilhe

Canada_wildfire_smoke_drifts_into_US_and_across_the_Atlantic.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 roleta btcits 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

'It provoked a fierce public debate' The 1957 homosexuality report that divided the UK.txt

Charan_Kaur_Dhesi_Meet_Britains_first_Sikh_female_pro_boxer_-_BBC_Sport.txt ponto quente e os moda foco.

GRáFICOS

nos eixos

Yorkshire_reservoir_levels_fall_below_one_third_despite_rainfall.txt

Carney_explains_rare_step_of_asking_King_Charles_to_open_Canada_parliament.txt conhecimento e os explorar lazer.

Navegue por temas

Celebration to mark five years of Newton's Place.txt Chappell Roan, Charli XCX and Doja Cat images among Music Photography Awards nominees.txt Can_supersonic_flight_ever_be_sustainable.txt Canolbarth_Y_newyddion_a_straeon_diweddaraf_BBC_Cymru_Fyw.txt Caldo_de_gallina_An_ancestral_dish_from_award-winning_Natalia_Vallejo.txt Charan_Kaur_Dhesi_Meet_Britains_first_Sikh_female_pro_boxer_-_BBC_Sport.txt Carmarthenshire_farmers_lose_275_sheep_after_flood.txt Carmarthenshire_farmers_lose_275_sheep_after_flood.txt Caerphilly_leader_quits_Labour_and_backs_Plaid_for_by-election.txt Cawl_Cymreig_A_Welsh_stew_for_St_Davids_Day.txt
日本韩国欧美三级 | 国产精品成人免费福利 | 日本无码免费久久久精品 | 欧美三级久久 | 黄视频网站大全 | 国产人妻人伦精品免费看果冻传媒 | 亚洲香蕉视频综合在线 | 无码人妻毛片丰满熟妇区毛片国产 | 在线观看亚洲一区二区 | 久久久国产一区二区三区四区小说 | 日b视频免费 | 精品婷婷乱码久久久久久日日 | 2018亚洲天堂 | 巜疯狂的少妇4做爰HD | 成人性大片免费观看网站YY | 欧美日韩视频在线第一区二区三区 | 大陆一级黄色片 | 国产美女啪啪 | 精品国产乱码久久久久久软件大全 | 中文字幕在线看 | 在线观看免费国产 | 再深点灬舒服灬受不了了视频 | 久久bb| 一级毛片全部免 | 男男BL各种姿势地方PLAY文 | 宅男色影视亚洲人在线 | 欧美另类专区 | 色视频免费版高清在线观看 | 浪荡受bl高肉 | 1级a的观看视频 | 日本一区色情无码视频在线观看 | 日本99视频 | 羞羞影院男女爽爽影院尤物 | 亚洲欧美在线观看一区二区 | 色欲久久精品无码一区二区三区 | 欧美一级视频精品观看 | 欧美高清一区二区三 | 亚洲成A人片在线播放器 | 久久6| 医生别摸啊摁摁 | 最后一夜无删减版在线观看 | 久久视频这里只精品18 | 国产成人综合久久精品下载 | 国产人久久人人人人爽 | 嫡女在闺房里被强高H | xxxwww黄色 | 一扒二脱三插片在线观看 | 亚洲v在线 | 日本中文字字幕乱码电影直播 | 午夜伦理伦理片在线观 | 九九久久亚洲综合久久久 | 成熟人妻AV无码专区A片麻豆 | 亚洲v欧美v日韩v国产v | 亚洲精品福利一区二区在线观看 | 亚洲 校园 春色 另类 图片 | 色重色 | 国产成人h综合亚洲欧美在线 | 日本高清在线视频手机 | 久久精品最新免费国产成人 | 影音先锋色情资源站 | AV片在线观看免费光看高清 | 一级毛片在线视频 | 国产一级第一级毛片 | 亚洲视屏在线 | 麻豆传媒在线完整视频免费 | 四房播播网址 | jizz国产在线播放 | 日韩欧美伦理 | 色婷婷色综合激情国产日韩 | 天天舔天天插 | 五月综合激情久久婷婷 | 久久精品无遮挡一级毛片 | 亚洲精品无码高潮喷水A片软件 | 中文字幕人妻熟女人妻洋洋 | 一卡二卡卡四卡免费高清欢迎您 | 国产又黄又湿又刺激不卡网站 | 无码人妻欧美丰满熟妇区毛片 | 樱花草在线观看播放视频www | 日韩在线视频www色 日韩在线免费观看视频 | 苍井空亚洲精品AA片在线播放 | 日韩电影一二三区 | 欧美日韩v | 日本高清在线一区 | www.色在线| 99国产在线观看 | 欧美性爱 成人 | 亚洲快插 | 依人在线免费视频 | 天天澡天天干 | 奇米影视777四色米奇影院 | 91免费观看在线网址 | 天天综合网天天综合色不卡 | 日本激情网站 | 久久国产露脸老熟女熟69 | 最新日本中文字幕 | 国产福利高清在线视频 | 兽交另类人妻素人 | 2018夜夜干天天天爽 | 国产AV国片精品一区二区 | 偷国精产品久拍自产 | 国产亚洲欧美在线 | 中国少妇内射XXXX狠干 | 欧美激情中文字幕一区二区 | 日本少妇A片又爽又黄 | 免费无套内谢少妇毛片A片软件 | 欧美很很干| 最新版天堂资源中文官网 | 欧美激情在线播放一区二区三区 | 免费又黄又爽A片免费看 | 国产精品色情国产三级在 | 成人精品AV一区二区三区网站 | www视频在线观看天堂 | 日本视频免费在线观看 | 色国产在线 | 日韩精品视频一区二区三区 | 久草热视频在线 | 成人网在线播放 | 丁香五月缴情综合网 | 永久免费看黄A片无码软件 永久免费毛片 | 日本亚洲欧洲色情 | 久久这里的只有是精品23 | 亚洲在线中文字幕2 | 欧美日韩伦理 | 男人j进女人j的图片 | 中文字幕在线视频观看 | 欧美宗合网 | 99免费精品 | 久久国内精品自在自线 | 日韩精品一区二区三区AV在线观看 | 亚洲精品一区三区三区在线观看 | 中文字幕精品一区 | 九九九热精品 | 视频一本大道香蕉久在线播放 | 人妻少妇久久久久久97人妻 | brazzers欧美孕交 | 精品欧美亚洲韩国日本久久 | 欧美大屁股熟妇BBBBBB | chinese国产人妖网站视频 | 久久久久国产精品免费看 | 久久精品这里是免费国产 | 8x在线观看免费视频 | 色啪视频 | 黄色日韩网站 | 免费高清资源黄网站在线观看 | 久久国产精品久久国产片 | 亚洲精品久久久WWW小说 | 高清一区二区三区 | 免费一级a毛片在线播放视 免费一级a毛片在线播放 | 91制片厂果冻传媒余丽 | 第四房色播网 | A一特级欧美毛片香蕉 | 欧美亚洲日韩在线在线影院 | 国产美女在线一区二区三区 | 国产午夜精品久久理论片小说 | 99久久免费看少妇高潮A片特黄 | 久久人人玩人妻潮喷内射人人 | 精品无人区乱码1区2区3区免费 | 精品人妻无码一区二区三区手机版 | 中国国产一级毛片 | 漂亮人妻被强中文字幕 | 免费护士一级毛片 | 成人片在线观看免费人A片 成人区色情综合小说 | 国产精品久久久久久久久久久久久久 | 国产成人精品影视 | 美美哒免费高清影院在线观看直播 | 色婷婷综合激情中文在线 | 色综合天天综合网 | 欧美变态老妇重口与另类 | 最近中文字幕在线视频 | wwwwxxxxx日本| 成人免费影院 | 日日摸天天碰中文字幕 | 成人精品一区二区三区校园激情 | 国产成人综合洲欧美在线 | 夜色99视频多人聊天室 | 久久香蕉国产线熟妇人妻 | 午夜精品久久久久久久久日韩欧美 | 苍井空电影去哪儿看网址 | 乱肉杂交怀孕系列小说BL | 黄网wwwabc300 wac免费 | 美女视频永久黄网站免费观看 | 污污在线网站 | 久久狠| 亚洲国色天香卡2卡3卡4 | 波多野结衣中文字幕在线播放 | 久久婷婷五月综合色精品首页 | 免费的视频 | 久久曰视频 | 久久99精品久久久久久综合 | 五月天激情婷婷 | 好久被狂躁A片视频无码免费视频 | 天天插天天操天天干 | 色婷婷成人 | 精品久久久久久影院免费 | 成熟YIN荡美妞A片视频麻豆 | 全黄H全肉短篇禁乱 | 樱花草视频在线观看免费资源WWW | 欧美三级A做爰在线观看 | 东京热中文无码 在线 | 插骚妇好爽好骚 | 国产一国产一级毛片视频在线 | 亚洲欧美日本在线 | 久久99国产精品久久99软件 | 欧美激情一区二区三区中文字幕 | 男男车车的车车网站W98 | 青草青草久热国产精品 | 毛片视频网址 | 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 | 日韩精品视频美在线精品视频 | 成人动漫久久 | 日本少妇裸体做爰高潮片 | 欧美成人精品一区二区综合A片 | 黄色一级片免费观看 | 欧美性精品 | 琪琪午夜伦伦A片 | 在线天堂最新版资源 | 国产午夜精品视频在线播放 | 在线观看高清黄网站免费 | 午夜在线视频一区二区三区 | 亚洲欧美日韩中文加勒比 | 色婷婷小说网 | 最近中文字幕免费手机版 | 色鬼7777久久 | 男女羞羞无遮掩视频免费网站 | 91导航福利 | 在线观看中文字幕码2024不用下载 | 亚洲2024无矿砖码砖区 | 亚洲一区二区师生制服 | 亚洲午夜精品A片一区三区无码 | 亚洲精品久久久久AV无码 | 99视频在线看观免费 | 色导航网址大全 | 欧美操操操 | 欧美老妇性生活 | 欧美の无码国产の无码影院 | 日日撸网站 | 国产欧美激情一区二区三区 | 污污内射久久一区二区欧美日韩 | 熟妇人妻中文字幕无码老熟妇 | 国产真实女人一级毛片 | 婷婷夜色 | 黄网站色视频免费看无下截 | 日韩精品在线观看视频 | 久久88香港三级台湾三级中文 | 97色伦久久视频在观看 | 小荡货好紧好爽奶头好大视频网站 | 色婷婷综合缴情综六月 | 国产亚洲综合一区二区在线 | 风流少妇又紧又爽又丰满 | 97在线精品视频免费 | 国产情侣网站 | 91视频影院 | 大菠萝福利污下载APP | 国产99久久久国产精品小说 | 色天天色综合 | 波多野结衣视频免费观看 | 欧美性xx18一19| 俺也去官网 | 亚洲 欧美 国产 综合网 | 色情成人韩国在线视频 | 日韩免费视频 | 制服丝袜快播 | 日本少妇按摩做爰2 | 免费精品国产日韩热久久 | 国色天香日本免费观看 | 精品无人区乱码一区二区三区手机 | 三级伦理在线电影日本 | 欧美丝袜办公室系列 | 在线中文字幕播放 | 色妞网 | 伊人久久大香线蕉免费视频 | 欧洲丰满少妇做爰视频爽爽 | 丁香五月 激情 婷婷 | 国精产品888 | 亚洲男人天堂2024av | 成熟YIN荡美妞A片视频麻豆 | 亚洲国产欧美中文手机在线 | 国产欧美另类久久久精品 | 国产极品美女视频福利 | 91精品国产免费入口 | 91一区二区午夜免费福利网站 | 日本韩国的免费观看视频 | 最新日韩精品 | 女人一看就湿的爽文 | 日本韩国欧美在线 | 国产精品网站在线观看免费传媒 | 99久久无码一区人妻A黑国产馆 | 中文字幕 欧美精品 第1页 | 亚洲国产成人精品无码区5566 | 久久久毛片 | 九九精品免费视频 | 诱人的女邻居9中文观看 | 97qingse | 午夜亚洲国产理论片4080 | 国产激情对白一区二区三区四 | 日韩伦理一区二区三区 | 酒神免费全集观看 | 天天干天天澡 | 王爷在书房含乳尖H女攻男受 | 午夜男女爽爽羞羞影院在线观看 | 亚洲 欧美 日本 国产 高清 | 久久这里只有精品66re99 | 日韩免费一级片 | 1区2区3区高清视频 2017国产小视频 | 久久91精品国产91久久麻豆 | 国产99精品一区二区三区免费 | 奇米四色在线视频 | 国产精品密蕾丝视频下载 | 欧美黑人一区二区三区免费A片 | 波多中文字幕 | 麻豆 一区 精品 在线 | 高清在线精品一区二区 | 九九免费久久这里有精品23 | 亚洲 日韩 中文字幕区 | 久久国产视频网站 | 国精产品一二三线999 | 亚洲小说电影偷拍在线观看 | 日本无码看片视频一区 | 久久久国产99久久国产久 | 快播色导航| 久re这里只有精品最新地址 | 九九久久国产精品大片 | 午夜激情在线观看 | 香蕉伊人伊在线播放av | 少妇被粗大的猛烈进出A片久久久 | 2022免费国产精品福利在线 | 好吊妞无缓冲视频观看 | 欧美一卡二卡3卡4卡无卡免费 | 午夜在线观看免费影院 | 男人吃奶捏奶很爽视频免费 | 国产精品久久久亚洲 | 视频一区精品 | 最爽快的乱肉小说合集500篇 | 欧美性猛交一区二区三区精品 | 亚洲尤码不卡AV麻豆 | 日韩国产在线播放 | 香蕉人人超人人超免费看视频 | 成人久久欧美日韩一区二区三区 | 亚洲综合日韩精品欧美综合区 | 色妺妺在线视频 | 欧美日韩视频一区二区在线观看 | 日本亚欧热亚洲乱色视频 | 午夜欧美日韩在线视频播放 | 三八色| 狠狠干美女 | 欧美啪啪网站 | 日韩日韩日韩日韩 | 中文字幕乱码亚洲无线三区 | 一级做a爰片性色毛片思念网 | 日本黄页网站在线观看 | www.黄色片网站 | 国产综合久久久久 | 日韩欧美一区二区三区不卡 | 国产剧情原创中文片在线 | 最新99热 | 麻豆亚洲精品中文字幕一麻豆 | 精品国产一区二区三区四区在线看 | 人人澡人人澡人人澡 | 国产91福利 | 污片网站在线观看 | 欧美日韩激情一区二区三区 | 经典三级一区二区三区视频 | 一级毛片卡 | 成人高清视频在线观看 | 无码人妻国产一区二区三区 | 91传媒制片厂果冻有限公司 | 国产在线视频在线 | 攻把受做哭边走边肉楼梯PLAY | 少妇被粗大的猛烈的进出69影院 | 亚洲va欧美va| 国产99精品一区二区三区免费 | 波多野结衣 一区二区 | 国产亚洲精品久久久久久白晶晶 | 蜜桃久久久 | 久久免费福利 | 国产黄色在线免费观看 | 精品福利视频导航 | 日本三级全大电影免费 | 日本巨大超乳在线播放 | 2024国产大片天天看 | 一个人免费看www视频 | _日韩人妻无码一区二区三区 | 亚洲乱码一卡二卡四卡乱码新区 | 老司机福利深夜亚洲入口 | 国产免费网站看v片在线 | 国产又黄又爽又色的免费APP | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 国产精品边做奶水狂喷小说 | 97视频在线观看播放 | 色综合天天综合 | 97精品国产高清自在线看超 | 色悠久久久久综合欧美99 | 日本视频中文字幕 | 欧美在线观看第一页 | 国产午夜爽爽窝窝在线观看 | 一本色道久久综合狠狠躁 | 宅男噜噜噜66 | 午夜人妻无码AV一区二区 | 第一色基地 | 午夜你懂的 | 国产免费A片好硬好爽好深漫画 | 国产97在线观看 | 国产jizzjizz视频免费看 | 岳的大白屁股光溜溜 | 日本成人免费在线观看 | 中文字幕欧美在线观看 | 中日韩毛片 | 激情射精爽到偷偷C视频无码 | 欧美一区二区影院 | 又黄又爽内射视频巨乳 | 国产成熟妇人高潮A片 | 久久久A片精品一区二区 | 亚洲日本视频在线 | 无人区乱码一二三四 | 国产亚洲精品久久播放 | 女人在厨房被添高潮全过程A片 | 在线免费观看毛片网站 | 欧美肥穴| 久青草国产手机视频免费观看 | 2018精品国产一区二区 | 岛国午夜精品视频在线观看 | 黑人操亚洲女人 | 日韩欧美一区二区中文字幕 | 日本一道在线播放高清 | 成人电影在线观看热 | 中文字幕在线观看网站 | 视频区国产亚洲.欧美 | 亚洲精品口国自一产A片 | 99re5在线精品视频热线 | 爱操综合网 | 欧美中文在线 | 成人黄18免费网站 | 免费在线黄色网址 | 天天插天天干天天操 | 韩国三级伦理久久影院 | 成版人性视频app菠萝 | 三级网站日本 | 国产AV亚洲一区精午夜麻豆 | 狠狠色丁香婷婷综合尤物 | 婷婷激情综合网 | 日本在线视频免费 | 超碰伊人久久大香线蕉综合 | 免费高清曰韩仑理 | 在线国产中文字幕 | 日本理论片和搜子同居的日子GOOD | AV亚洲AV永久无码精品网 | 老色批影院 | 亚洲无码一区二区 | 久久大香萑太香蕉av | 久久精品国产99久久 | 熟女人妻一区二区三区免费看 | 淫品色影院 | 欧美18.19| 中国毛片视频 | 污污的小说网站免费阅读 | 灌满到腿抽搐合不拢BL总受 | 国产精品久久久久久亚洲毛片 | 国产又色又爽又黄的视频免费看 | 日日热| 波多野结衣一区二区三区88 | 无码骚夜夜精品 | 无码欧美毛片一区二区三 | 大叔爱上我视频在线观看 | 国产精品午夜自在在线精品 | 偷拍精品视频一区二区三区 | 手机在线国产精品 | 黄色资源在线观看 | 2021自拍偷在线精品自拍偷 | 和少妇邻居做爰伦理 | 亚洲国产精品日本无码网站 | 国产在线高清不卡免费播放 | 少妇无套内谢久久久久 | 深夜福利欧美 | 日本在线无码中文一区免费 | 麻豆文化传媒WWW网站入口 | 苍井空无码播放电车 | 亚洲精品无码成人A片在线虐 | 久久人人玩人妻潮喷内射人人 | 国产精品白浆流出视频 | 黄色成人免费网站 | 久久99婷婷五月综合色啪 | 国产三级做爰在线播放 | 影音先锋av男人资源 | 成人影院m免费 | 插综合网| 精品99卡1卡2卡3乱码 | 在线二区| 精品久久久久不卡无毒 | 日本黄免费 | 日本三级吃奶头添泬无码 | 精品人伦一区二区三区潘金莲 | 91免费在线观看 | 日本午夜大片a在线观看 | 国产色情一区二区不卡毛片 | 亚洲精品国产一区二区三 | 李李妮的视频vk | 日韩人妻少妇一区二区三区 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 北条麻妃 中文字幕 | 婷婷草 | 亚洲成人原创 | 欧美午夜福利1000集2019年 | 97国产精华最好的产品在线 | 最新国自产拍短视频 | 日本视频免费观看的网站 | 国产精品扒开腿做爽爽爽王者A片 | 成人污污污WWW网站免费直播 | 亚洲AV久久无码精品国产网站 | 国产一区二区精品尤物 | 亚洲国产欧美目韩成人综合 | 亚洲精品久久 | 荡公乱妇第1章方情公憩系列大 | 伊人大相蕉在线看青青 | 国产乱码一区二区三区 | 日本无码V视频一区二区 | 日本伊人色综合网 | 四虎永久在线观看免费网站网址 | 鲁鲁夜夜| 久久精品人妻无码一区二区三区网 | 亚洲一区二区在线播放 | 波多在线视频 | 亚洲AV国产成人精品区三上悠亚 | 又大又爽又黄A片免费 | 他的手抓住了我的小兔子视频 | av综合网 | 国产一级一片免费播放 | 人妻超级精品碰碰在线97视频 | 最近最新中文字幕免费的一页 | 色站视频| 成人激情视频在线 | 男人猛躁进女人的毛片A片小说 | 亚洲精品欧美精品日韩精品 | 泷泽萝拉快播 | 人妻仑乱少妇A片 | 看全免费的一级毛片 | 农村真实夫妇屋内自拍视频 | 色情图插插插 | 免费在线播放黄色 | 久久人人澡人人爽人人爱 | 国产欧美精品一区二区色综合 | 成人综合亚洲欧美一区h | 久久国产经典 | 五月亭亭六月丁香 | 国产偷窥熟妇高潮呻吟 | 2022国产男人亚洲欧美天堂 | 岳的下面又大又黑又肥 | 欧美手机手机在线视频一区 | 91香蕉成人 | 国产中字| 校园刺激全黄H全肉细节文 校园激情人妻古典武侠 | 我被几个男的玩爽到死 | 看一级毛片一区二区三区免费 | 久久久久久亚洲精品影院 | 欧美婷婷 | 韩国三级大全久久网站 | 丁香六月综合网 | 亚洲精品成人区在线观看 | 嫩草AV久久伊人妇女超级A | 卯月麻衣种子 | 久久综合伊人中文字幕 | xxxx 性bbbbou 欧美| 国产在线观看免费一级 | 把手戳进美女尿口里动态图 | 性一交一伦一乱一A片 | 久久久国产99久久国产一 | 欧美日韩看看2015永久免费 | 好色网 | 97在线视频免费观看97 | 女人十八毛片A片久久18 | 亚洲男人天堂2018 | 免费女性裸身照无遮挡网站 | 亚洲1区1区3区4区产品乱码芒果 | 国产亚洲午夜精品a一区二区 | 国产真实伦在线观看视频 | 三级网址免费 | 每日更新在线观看av | 永久免费的网站观看 | 婷婷色五月另类综合视频 | 污污的网站免费在线观看 | 夜夜躁狠狠躁日日躁视频 | 国产熟女精品高清在线 | 伊人久久久综在合线久久在播 | 亚洲 欧美 国产 日韩 中文字幕 | 我色综合| 国产最新网址 | 99热亚洲 | 玖玖香蕉视频 | 黑丝丝教师爆乳翘臀上课 | 国产在线永久视频 | 中文字幕完整视频高清 | 91女神精品系列在线观看66 | 免费狼人久久香蕉网 | GOGO国模大胆私拍 | 国产a国产片国产 | 不卡免费在线视频 | 丰满五十路熟女正在播放 | 久久WWW免费人成一看片 | caoporn免费| 国产在线视频一区二区不卡 | 又硬又粗进去好爽A片免费多人玩 | 婷婷激情视频 | 三级在线不卡 | 伦理电影网站 | 天天干天天曰 | 国产一级 黄 片 | 日本三级韩国三级韩级在线观看 | 琪琪伦伦影院理论片 | 久久亚洲AV成人无码电影A片 | 中文字幕在线观看亚洲日韩 | 免费看成人A片无码视频网站 | 外国人毛片 | 婷婷成人丁香五月综合激情 | 波多野结衣中文字幕2022免费 | 日韩视频高清免费看 | 在线毛片一区二区不卡视频 | 伊人婷婷六月狠狠狠去 | 97在线观看免费版高清 | 国产精品反差婊在线观看 | 国产综合欧美日韩在线 | 宅男噜噜噜66一区二区 | 欧美xxxx做受欧美 | 精品一区二区三区影片 | 一本色道无码道在线 | 四库影院永久国产精品 | 激情综合久久 | 在线无码中文字幕一区 | 四房影院 | 黄色成人在线网站 | 六月成人网 | 男人用嘴添女人私密视A片 男人站影音先锋男人站 | 欧美孕交videofree巨大 | 日韩在线高清视频 | 99精品国产免费久久国语 | 日本又黄又无无遮无码视频 | 少妇被躁爽到高潮无码久久 | 免费的成人电影 | YIN乱大合集未删节TXT下载 | 4房色播 | 麻花豆传媒剧在线MV免费版特色 | 影音先锋影av色资源网 | 久久久久国产免费 | 人妻中文字幕乱人伦在线 | 99精品久久精品一区二区小说 | 亚洲视频www | 桃花综合久久久久久久久久网 | 国产日韩精品一区在线观看播放 | 亚洲日本三级 | 男人午夜小视频 | 日韩视频国产 | 国产精品99久久久精品无码 | 亚洲午夜免费视频 | 免费伊人 | 伊人网综合视频 | 亚洲第一区精品观看 | 成人亚洲区无码偷拍 | 烽火三月| 欧美激情一区二区三区在线 | 欧美欲乱妇135 | 精品免费看 | 国产在线看片免费视频 | 黄页大全在线观看 | 美女扒开尿道让男人捅 | 日韩黄网站 | 极品少妇粉嫩小泬啪啪小说 | 日日摸天天爽天天爽视频 | 黄色毛片在线 | 波多野结衣教师中文字幕 | 亚洲激情成人网 | 免费国产黄页不收费 | 免费黄色网址在线观看 | 999精品视频这里只有精品 | 欧美成人猛片AAAAAAA | 国产精品国产三级国产an不卡 | 亚洲精品综合 | 最近高清无吗免费看 | 精品久久久久久 | 91麻豆久久 | 亚洲欧美色鬼久久综合 | 日本工口里画番全彩 | 亚洲人精品亚洲人成在线 | 成人免费一区二区无码视频 | 99久久成人 | 亚洲一区在线播放 | 久热网站| 灌满抽搐合不拢男男H | 婷婷综合激情 | 国产一区二区三区四区精华液毛 | 日本内射精品一区二区视频 | 欧美疯狂做爰XXXX高潮 | 九九九九视频 | 日韩欧美三级在线 | 中文字幕精品视频 | 91精品三级在线观看播放 | 亚洲午夜a | 少妇性BBB搡BBB爽爽爽小说 | 国产精品久久久久a影院 | 攻把受做得合不拢腿play | 欧美在线观看网址 | 九九视频在线观看视频6 | 嗯 好深 啊 用力 哦 嗯 啊视频 | 激情综合丁香婷婷色五月 | 色欲AV色欲AV久久麻豆 | 日本无码免费久久久精品 | 波多久久夜色精品国产 | 2018天天拍拍天天爽视频 | 一个人免费看www视频 | 中国一级特黄真人毛片 | 国产精品福利在线播放 | 论理电影在线观看 | 蜜桃麻豆WWW久久国产SEX | 亚洲 欧美 日本 国产 高清 | 波多野结衣一区2区3区 | 黑人狂躁日本妞无码A片 | 色婷婷小说网 | 在线观看黄永久免费网站 | 国产三区在线成人AV | 美女写真福利视频网站 | 亚洲精品1卡2卡三卡4卡乱码 | 黄色在线看网站 | 国精产品99永久中国有限公司 | 精品国产乱码久久久久APP下载 | 黄色网址亚洲 | 在线看黄页 | 夜夜爽天天操 | 欧美性爱天天影视 | 欧美一区二区三区大片 | 欧美内射AAAAAAXXXXX | 国产xxxx做受性欧美88 | 永久看免费bbbbb视频 | 久热国产在线视频 | 人妻被下春药中文字幕 | 国产激情久久久久久影院 | 亚洲欧洲日产国产 最新 | 高清一区二区三区免费 | 片毛片免费看 | 永久免费看成人A片在线播放 | 黄频网站| 精品人妻无码一区二区三区狼群 | 天天久久综合网站 | 噜妇插内射精品 | 97亚洲精华液 | 欧美精品一区二区三区在线播放 | 国产永久视频 | 麻豆精品人妻一区二区三区蜜桃 | 一本三道a无线码一区v小说 | 国产无人区码卡二卡3卡4卡网站 | 被教官按在寝室狂到腿软视频 | 麻豆国产精品久久人妻 | 日本亚洲精品久久蜜臀 | h网站在线免费观看 | 午夜性色一区二区三区不卡视频 | 黄色免费在线观看视频 | 春日野结衣在线视频 | 久久久久久国产a免费观看黄色大片 | 少妇高潮灌满白浆毛片免费看 | 亚洲一区日韩一区欧美一区a | 欧美日本一道高清二区三区 | 久久国产精品久久 | 欧美一区二区三区黄色 | 亚洲一品AV片观看五月色婷婷 | 亚洲经典自拍 | 一本久道久综合久久鬼色 | 人妻夜夜爽天天爽三区麻豆AV网站 | 中文字幕巨大的乳专区 | 中文字幕亚洲无线码 | 亚洲日本中文字幕在线 | 总攻男主被C得合不拢腿 | 范冰冰一级做a爰片久久毛片 | 一级a级毛片 | 尹人成人 | 五月天婷婷视频在线观看 | 综综综综合网 | 无码日本被黑人强伦姧视频 | 日本免费一区二区久久人人澡 | 欧美精品一区二区三区在线播放 | 日韩精品一区二区三区中文字幕 | 亚洲人成无码久久久AAA片 | 男女做爰猛烈动高潮A片色情 | 成年男人裸j网站 | 午夜手机福利 | 日本少妇无码一区视频 | 国外人成人色视频在线 | 欧美色阁 | 麻豆传传媒久久久爱 | 丁香花视频资源在线观看 | 除却巫山在线 | 成人做爰9片免费看网站 | 亚洲欧美色图小说 | 夜夜操夜夜爱 | 我是唱作人第二季免费 | 少妇被躁爽到高潮无码A片小说 | 蜜桃视频极品免费观看 | 性xxxxbbbb免费播放视频 | 四虎影视最新的2024版地址 | 亚洲精品久久无码AV片俺去也 | 国模欢欢高清炮交图片 | 日韩一区二区三区视频在线观看 | 久久精品AV无码一区二区小说 | 国产综合视频在线观看一区 |