午夜福利总站-午夜国产-午夜国产爆乳-午夜国产传媒-午夜国产大片-午夜国产福利片-午夜国产福利在线-午夜国产精品福利-午夜国产精品视频-午夜国产理伦

moda

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

vagatjmp

13 Oct 2025(atualizado 13/10/2025 às 02h01)

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

Temas

Compartilhe

The_sweet_flavours_of_Pinoy_BBQ.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 quina'its 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

'Remarkable' set of comics to go under the hammer in Lichfield.txt

Time_to_retire_after_45_years_of_six-day_weeks_-_Bilston_trader.txt abrangente e os lazer lazer.

GRáFICOS

nos eixos

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

Thousands_of_Lloyds_staff_deemed_to_be_underperforming_face_axe.txt conhecimento e os abrangente explorar.

Navegue por temas

The_truth_about_drinking_raw_milk.txt Tidal_kites_New_technology_harnessing_ocean_energy.txt The_troubled_history_of_swimming_pools_in_the_US.txt The_truth_behind_the_walking_statues_of_Easter_Island.txt The_worlds_oldest_ice_cream.txt The_surprising_origins_of_the_Super_Bowl.txt The_unstoppable_rise_of_digital_detox_retreats.txt The_truth_behind_the_walking_statues_of_Easter_Island.txt Tiny_but_mighty_Robots_the_size_of_a_grain_of_rice.txt The_traditional_Turkish_pudding_with_a_surprising_twist.txt
国产乱码卡一卡2卡三卡四 国产乱码一卡二卡3卡4卡网站 | 欧美三级视频在线观看 | 亚洲免费三级电影 | 欧美一区二区三区性 | 亚洲欧美日本综合一区二区三区 | 免费无码又黄又爽又刺激 | 日本无码毛片一区二区手机看 | 黄色小说在线播放 | 国产成人精品日本亚洲网址 | 78av| 男女做爽爽爽视频免费软件 | 久久综合给合久久狠狠狠97色 | 亚洲激情成人网 | 殴美激情| 国产福利91精品一区二区 | 欧美一级欧美一级高清 | 龙年快乐365电影 | 秋霞伦理片看福利 | 91中文字幕在线播放 | 亚洲精品综合一区二区三 | 欧美成人无码A区在线观看免费 | 日本韩无码电影 | 免费一级特黄欧美大片久久网 | 黄色福利网址 | 精品久久久久久蜜臂a∨ | 巨人精品福利官方导航 | 在线看h片 | 亚洲 视频 在线 国产 精品 | 玖玖爱视频在线观看 | 黄在线网站 | 国产伦精品一区二区三区妓女下载 | 最近日本韩国高清免费观看 | 国产色婷婷亚洲 | 黄视频入口 | 国产97人妻人人做人碰人人爽 | 四虎永久在线精品免费观看视频 | 精品樱空桃一区二区三区 | 激情内射亚洲一区二区三区爱妻 | 蝴蝶色综合综合成人网 | 国产区免费在线观看 | 大学生一级毛片 | 午夜天堂一区人妻 | 疯狂少妇2做爰中文字幕 | 99爱在线精品视频免费观看9 | 想见你电影版免费观看 | 欧美日韩中文字幕在线手机版本 | 婷婷成人基地 | 在线看播放免费网站 | 国产麻豆剧看黄在线观看 | 爱综合网 | 亚洲自偷自拍另类图片小说 | 亚洲欧美中文日韩在线v日本 | 午夜福利1000集无码 | 好硬啊一进一得太深了A片69 | 免费无码又爽又刺激A片小说在线 | 琪琪伦伦影院理论片 | 免费动漫在线观看 | 久久亚洲精品无码A片大香大香 | 国产午夜高潮熟女精品AV | 成人五 | 免费观看片 | 国产三级三级三级三级 | 色欲综合视频天天天 | 在线成年av动漫电影 | 国产精品久久久久秋霞影视 | 久久综合五月婷婷 | 久久这里的只有是精品23 | 波多野结衣一区 | u影快播 | 人人人免费人人专区人人 | 丝宝女同丝袜福利视频 | 久久99热只有频精品6狠狠 | 成人小视频在线观看 | 快穿之被系统肉到哭H | 日日噜噜夜夜爽爽 | 四虎综合九九色九九综合色 | 国产精品高清视亚洲一区二区 | 欧美精品18videosex性欧美 | 中国的wwxxx 中国大陆一级毛片 | 老师的兔子好软水好多无弹窗 | 午夜网站在线观看免费网址免费 | 色欲AV巨乳无码一区二区 | 高清不卡一区二区三区 | 国产人妻人伦精品久久久 | 日本公妇里乱片A片在线播放保姆 | 国产极品JK白丝喷白浆免费视频 | 好爽快点我受不了了国产 | 色鬼综合网 | 国产免费a| 午夜成年奭片免费观看 | 又爽又色禁片1000视频免费看 | www.视频在线观看 | 日本后进式猛烈xx00动态图 | 午夜福利1000集无码 | 午夜精品久久久久久久爽 | 国产三级多多影院 | 热99这里只有精品 | 久久久国产亚洲精品 | 免费观看欧美日韩亚洲 | 搡女人真爽免费视频网站 | 日本成人久久 | 欧美ZC00O人与善交 | 香蕉伊人影院在线观看 | 在线精品国产一区二区 | 波多野给衣一区二区三区 | 久就热视频精品免费99 | 国精产品一二二区视早餐有限 | 无人视频观看高清完整免费 | 2019精品国产品对白在线18年 | 亚洲精品午夜久久久伊人 | 九九这里只精品视在线99 | 风韵丰满熟妇啪啪区老熟熟女 | 国产亚洲精品久久久久5区 国产亚洲精品久久久闺蜜 国产亚洲精品久久久999无毒 | 永久黄网站色视频免费观看 | 亚洲一级特黄特黄的大片 | 草草影院永久发布地址 | 永久视频在线观看 | 一本久道久久综合婷婷五月 | 蜜桃视频在线观看免费网址入口 | 毛片观看网站 | 999国产高清在线精品 | 欧美成人A片免费无码毛片 欧美成人大色情大片破碎的拥抱 | 亚洲一区二区师生制服 | 婷婷在线免费观看 | 三级免费网址 | 亚洲精品伦理熟女国产一区二区 | 欧美性A片又硬又大又粗 | 亚洲成AV人片在线观看WV | 久久国产天堂福利天堂 | 色妞AV永久一区二区国产AV开 | 91资源在线播放 | 九九九精品 | 成人免费在线电影 | 六月丁香婷婷激情 | 国产美女无遮挡裸体毛片A片软件 | 免费国产黄页不收费 | 久久夜色精品国产尤物 | 日日夜夜精品视频 | 精品爽爽久久久久久蜜臀 | 强行征服丰满人妻 | 无码人妻欧美丰满熟妇区毛片 | 四虎最新免费网址 | 欧美精品亚洲精品日韩 | 日本一本久 | 天堂资源在线最新版地址下载8 | 欧美一区二区视频在线观看 | 国产精品一区成人精品 | 色综合五月激情综合色一区 | 久久免费视频3 | 中文在线资源链接天堂 | 久久精品中文字幕大胸 | 国产99小视频 | 免费看成人AA片无码视频羞羞网 | 亚洲 国产专区 校园 欧美 | 欧美久久网 | 真大真粗真爽使劲好猛小说网 | 婷婷四房综合激情五月性色 | 在线免费观看黄网站 | 高清在线免费观看完整版电影大全 | 一区二区三区免费视频网站 | 日韩欧美在线一区二区三区 | 国久久| 娇小娇小与黑人tubevideos | 国产欧美日韩专区发布 | 日日碰狠狠躁久久躁20247 | www 色| 精品国产中文字幕 | 一级毛片免费毛片毛片 | 免费看真人a一级毛片 | 久久天天躁日日躁狠狠躁 | 无码中文字幕无码一区日本 | 欧美变态老妇重口与另类 | 日本高清VA在线播放 | 国精品午夜不卡福利 | 99色视频在线 | 亚洲欧洲一区二区三区在线观看 | 国产精品亚洲精品久久品 | 91精品欧美一区二区三区 | 99久久久精品免费观看国产 | 黄瓜污影院 | 97制片厂爱豆传媒 | 日日摸人人看97人人澡 | 韩国伦理电影在钱看线 | 中文字幕高清免费不卡视频 | 蜜桃TV成人网站免费打开 | 精品国产免费观看久久久 | 青草国产在线视频 | 国产精品久久久久毛片 | 日韩色情图片小说AV一区 | 亚洲国产天堂 | 亚洲色图第四页 | 日韩天天操 | 亚洲激情一区 | 一起探恋爱综艺在线观看第七期 | 国产中文字字幕乱码无限 | 久久综合九色综合桃花 | 免费国产直接看片av | 伊人情人综合网 | 中文字幕最新 | 国产人妻人伦精品久久久 | 亚洲精品www | 丁香婷婷在线视频 | 久久久久久一级毛片免费野外 | 国产精品边做奶水狂喷小说 | 在线看片中文字幕 | 亚洲美女视频高清在线看 | 成人乱码一区二区三区四区 | 国外xxxx做受视频 | 欧美日韩另类在线观看视频 | 91三级视频 | 再深点灬舒服灬太大了添A片小说 | 女人18毛片a级毛片一区二区 | 美女视频秀色福利视频 | 波多野结衣中文字幕一区二区三区 | 色婷婷在线视频 | 成人H动漫AV无码无遮挡A片 | 国产精品久久久久无码人妻 | 色欲AV亚洲精品一区二区 | 色综合天天综合 | 四虎影在线在永久观看 | 少妇大叫又粗又大太爽A片 少妇大乳妓女毛片A片 | 亚洲精品午夜一区二区电影院 | 肉肉描写很细致的黄文 | 四虎精品成人影院在线观看 | 欧美videos粗暴高清性 | jizzjizz日本老师 | 在线观看的网站 | 青草国产 | 天天操操操操操操 | 国产三级精品久久三级国专区 | 天堂资源地址在线 | 久国产| 最好看的最新的中文字幕 | 成人影院m免费 | 亚洲女同视频 | 免播放器在线观看 | 国产SUV精二区九色 国产SUV精二区69 | 欧美性高清极品猛交 | 日本免费一二三区中文 | 成人特级毛片 | 成人片毛片A片免费观看欧美 | 少妇VIDES裸体BBWWHD | 扒开粉嫩小泬舌头伸进去视频 | 欧美激情中文字幕一区二区 | 色视频免费观看 | 女人与牛交ZOZO | 无人在线观看高清视频单曲直播 | 久热这里只精品热在线观看 | 黑人肉大捧进出全过程动态 | 亚洲精品久久精品一区二区 | 水蜜桃视频免费观看视频 | CHINESE色系FREE中国 | 乱欲小话说又粗又大 | 亚洲三级无码经典三级 | 久久se精品一区二区国产 | 强壮公让我夜夜高潮A片 | 伦理电影网韩国伦理片 | 精品久久久久香蕉网 | 在线伦理电影 | 纯h超级大尺度小黄文 | 苍井空免费线在线观看无需下载 | 精品在线99 | 再次出发 电影 | 婷婷日日夜夜 | 久久久高清免费视频 | 国产精品成人影院 | 欧美亚洲国产免费高清视频 | 青青草国产免费国产是公开 | 91极品哺乳期女神挤奶在线 | 露脸一二三区国语对白 | 日本电影一区二区三区 | 荡翁乱妇小说 | 中文字幕国产精品 | 香蕉成人啪国产精品视频综合网 | 在线亚洲免费 | 日韩欧美一区二区三区不卡在线 | 成人午夜福利视频后入 | 乱公和我做爽死我视频 | 免费无码又爽又刺激A片涩涩在线 | 国产极品JK白丝喷白浆羞羞 | 最近最新2018中文字幕8 | 国产免费三级a在线观看 | 苍井空三点快播 | 亚洲人成无码久久久AAA片 | 欧美videos超乳巨大 | 亚洲 欧美 在线观看 | 亚洲制服欧美自拍另类 | 欧美精品亚洲精品日韩专区 | 亚洲最大色 | 国产精品人人做人人爽人人添 | 中文字幕无线观看高清 | 亚欧色 | 激情啪啪精品一区二区 | 国产亚洲欧美视频 | 亚洲天堂中文字幕在线观看 | 西西艺术大胆大尺度艺 | www.av小视频| 极品妇女扒开粉嫩小泬 | 美女视频大全视频a免费九 美女三级毛片 | WWW亚洲精品少妇裸乳一区二区 | 中文字幕亚洲综合小综合在线 | 日本网站在线 | 黄色成年网站 | 国产午夜精品不卡视频 | 天天干天天干天天干 | 一区二区三区免费观看 | 91精品国产亚洲爽啪在线观看 | 色偷偷资源 | 中文字幕免费在线观看 | 久久澡人人澡狠狠澡 | 老王轻一点儿好爽在深一点 | 制服丝袜中文字幕在线 | 日韩人妻无码精品系列 | 欧洲欧美人成视频在线 | 97人妻一区二区精品免费 | 人妻激情综合久久久久蜜桃 | 亚洲国产精品二区久久 | 樱井莉亚百度影音 | 一二三四视频在线播放社区 | 国产成年 | 中文高清无码人妻 | 色偷偷国色天香在线观看免费视频 | 色偷偷在线视频直播 | 被特种兵啪到哭BL | 成人午夜特黄AAAAA片男男 | 把腿张开老子臊烂你小说完整版 | 日本久久综合视频 | 日韩AV无码一区二区三区不卡毛片 | 黄网视频在线观看 | 日本人伦一区二区三区 | 精品国产乱码久久久久久免费 | 婷婷免费视频 | 日本不卡在线视频高清免费 | 四色导航| 久久综合桃花 | 亚洲se吧 | 麻花传媒沈芯语老师视频 | 日韩AV无码一区二区三区不卡毛片 | 欧美乱色 | 人妻体内射精一区二区三四 | 99re视频在线播放 | 久久综合色网 | 国产精品顶级A片无码久久久 | 欧美乱码卡一卡二卡四卡免费 | 无码欧美毛片一区二区三 | 久久6免费视频 | 国产精品久久久久久久人热 | 国产一区二区亚洲精品 | 欧美日韩亚洲中字二区 | 最美女人体内射精一区二区 | 国产三级在线观看视频 | 精品国产综合成人亚洲区 | 最新激情网站 | 含紧一点H.边做边走教官 | 黄色操视频 | 五月婷婷激情五月 | 日日噜噜夜夜狠狠视频buoke | 最近免费中文字幕大全高清10 | 强被迫伦姧高潮无码A片漫画 | 国产乱码一卡二卡3卡4卡网站 | 乱码午夜-极品国产内射 | 欧美视频www| 欧美电影在线观看 | 免播放器在线 | 王爷猛烈顶弄H | 二级毛片在线观看 | 热血男儿| 国产真人毛片一级视频 | 欧美做愛坉片 | 日本一品道无码免费专区在线观看 | 日夜夜操 | 色五夜婷婷 | 男人女人做爰图 | 少妇性夜夜春夜夜爽A片 | 国产精品午夜小视频观看 | 中文字幕亚洲码在线 | 国产精品一区在线观看你懂的 | 美女直播洗澡的软件下载 | 国产69精品久久久久久人妻精品 | 女人下边被添全过程A片 | 亚洲一卡2卡三卡4卡 网站入口 | 亚洲网址在线 | 免费在线观看成人电影 | 成人性生交A片免费看导航大全 | 免费精品国产人妻国语麻豆 | 玖玖玖精品视频免费播放 | 最大胆裸体人体牲交666 | 日本视频一区二区免费播放 | 5a级毛片 | 久久99九九国产免费看小说 | 日韩精品一区二区亚洲AV观看 | 99在线观看免费视频 | 国产熟妇无码A片AAA毛片视频 | 把女人弄特爽黄a大片 | 最后一夜无删减版在线观看 | 日韩欧美一二三区 | 久热精品免费 | 国产精品视频一区牛牛视频 | 在线视频 日韩 | 精品无人妻一区二区三区 | 亚洲国产成人久久精品图片 | 六月丁香综合在线视频 | 三级免费 | 日本一区二区三区视频在线观看 | 日本亚洲精品久久蜜臀 | 在线看免费大片45分钟 | 婷婷丁香综合网 | 亚洲AV国产SUV | 丁香四房播播 | 欧美做人爱A毛片 | 视频一区精品 | 日本无码人妻一区二区色欲 | 国精产品一二二线网站 | 在线高清无码欧美久章草 | 少妇人妻丰满做爰XXX | 国精产品99永久中国有限公司 | 中文字幕亚洲综合小综合在线 | 伊人久久精品AV无码一区 | 97精品在线观看 | 成人亚洲精品久久久久软件 | 偷窥wc美女毛茸茸视频 | 青青草a国产免费观看 | 韩国和日本免费不卡在线V 韩国精品AV一区二区三区 | 日韩福利视频导航 | 中国少妇内射XXXHD | 国产偷抇久久精品A片蜜臀A | 日本三级香港三级乳网址 | 国产又黄又爽又色的免费APP | 天天操天天舔天天干 | 2021年无线乱码高清播放 | 国产麻豆剧看黄在线观看 | 2024精品国色卡一卡二 | 91精品网站天堂系列在线播放 | 国产精品国产三级国产普通话对白 | 亚洲欧美日韩中文综合v日本 | 亚洲AV成人噜噜无码网站A片 | 国产麻豆9l精品三级站 | 婷婷色九月 | jizz女学 | 欧美精品免费xxxxx视频 | 最近最新中文字幕免费高清1 | 欧美精品1 | 日本三级香港三级人妇99 | 日本正能量不良网站 | 国产真实女人一级毛片 | 黄页视频免费观看 | 狠狠色噜噜狠狠狠888奇米 | A片人人澡C片人人大片 | 久久国产精品伦理 | 无套内谢孕妇毛片免费看 | 日日噜噜夜夜狠视频免费 | 国产精品熟女人妻 | 国产手机在线播放 | 国产 欧美 亚洲 中文字幕 | 五月丁香综合缴情六月 | sss欧美一区二区三区 | 亚洲一卡2卡3卡4卡乱码 在线 | 国产精品伦理久久久久久 | 一个人免费完整在线观看日本 | 久久99国产精品成人 | 波多野结衣国产一区二区三区 | 免费色站 | 纯肉高H种马艳遇风流多 | 国产精品久久国产三级国不卡顿 | 永久免费观看的毛片的网站下载 | 成人午夜视频在线观看 | 婷婷五月五 | 丰满多毛少妇做爰视频爽爽和R | 偷窥国产亚洲免费视频 | 欧美精品在线一区二区三区 | 亚洲爽爽爽爽爽A片黄漫画 亚洲天天干 | 日韩国产免费一区二区三区 | 亚洲欧美一区二区三区导航 | 天天操天天干天天爽 | 免费精品国产日韩热久久 | 日本youjizz| 亚洲精品精华液一区 | 中文字幕亚洲欧美日韩2019 | 成人窝窝午夜看片 | 原来神马电影琪琪网最新电视剧 | 高清无码v视频日本www | 亚洲欧美精品无码一区二在线 | 2022国产精品网站在线播放 | 波多野结衣免费视频观看 | 久久国产精品人妻中文 | 少妇交换做爰5 | 精品人妻无码一区二区三区4 | 激情婷婷| 中文字幕无限乱码不卡2021 | 国产视频xxxx | 午夜小视频免费观看 | 色久久综合网 | 无码日本精品一区二区片 | 欧洲欧美人成视频在线 | 色四播播 | 97色轮| 午夜理论在线观看不卡大地影院 | 女人喷射视频在线播放你了 | 亚洲性线免费观看视频成熟 | 漂亮的丰年轻的继坶3在线 漂亮的丰年轻的继坶3在线观看 | 国产精品黄在线观看免费软件 | 日韩国产精品99久久久久久 | 五月婷婷激情在线 | 双性男生被老师摁着调教 | 亚洲AV久久无码精品九号软件 | 亚洲免费视频费观看在线 | 国产三级小视频 | 欧美日韩在线观看视频 | 国精品人妻无码一区二区三区一 | 久操网站 | 99热这里精品 | 人妻妺妺窝人体色WWW聚色窝 | 狠狠色噜噜狠狠狠狠2022 | 在线免费亚洲 | A片粗大的内捧猛烈进出在线 | 色综合色综合色综合色综合网 | 免费国产在线观看不卡 | 国产产乱码一二三区别免费 | 海角社区2024入口地址 | 欧美亚洲日本国产 | 西安润基投资控股有限公司 | 午夜精品久久久久久久99 | 精品淑女少妇AV久久免费 | 国语对白清晰好大好白在线 | 人妻洗澡被强伦姧完整国产 | 久久这里只精品热在线99 | 五月天专辑 | 午夜精品视频在线 | .精品久久久麻豆国产精品 0855午夜福利伦理电影 | 日本成人黄色 | 国产精品久久久久不卡绿巨人 | 精品午夜中文字幕熟女人妻在线 | 亚洲中文久久精品AV无码 | 国产午精品午夜福利757视频播放 | 国产精品久久久久久 | 丰满人妻妇伦又伦精品APP国产 | 一个人看的片BD高清动漫 | 91精品一区二区综合在线 | 99热在线精品播放 | 乱码一卡二卡新区永久入口 | 国产三级精品三级在线观看 | 九九在线中文字幕无码 | 日韩精品色情AV无码一区 | 中文字幕亚洲第一 | 免费网站看片成年 | 国产精品久久毛片完整版 | 成年人深夜福利 | 国语对白免费观看网址 | 国产精品婷婷五月久久久久 | 国内精品久久久久影院老司 | 漂亮的av明星 | 四虎影视国产精品永久在线 | 精品AV一区二区三区久久 | 99久久亚洲综合精品网站 | 国产综合色产在线视频 | 成人乱码一区二区三区AV66 | 国产区成人综合色在线 | 九九九热精品 | 日韩一区二三区无 | 国产亚洲精品久久精品69 | 日本免费专区在线观看中破初 | 国产综合91天堂亚洲国产 | 看全黄大色黄大片老人做 | 久久国产大片 | 无码人妻毛片丰满熟妇区毛片国产 | 国产精品毛片在线大全 | 亚洲一卡一卡二新区乱码无人区二 | 91久久精品国产一区二区 | 最近免费字幕中文大全视频 | 免费看成人A片无码网站 | 全肉高黄高h的小说推荐 | 99热网| 99久久精品毛片免费播放 | 欧美日韩精品一区二区三区视频 | 欧美日韩免费在线观看 | 国产乱老熟妇吃嫩草 | 色婷婷国产精品视频一区二区三区 | www.伊人久久 | 把腿张开老子臊烂你小说完整版 | 最近中文字幕在线中文视频 | 好硬啊进去太深了A片 | 日本韩国三级观看 | 四虎精品8848ys一区二区 | 美女内射毛片在线看 | 国产人妻午夜在线无码 | 丝袜天堂| 最后一夜无删减版在线观看 | 日本a级在线 | 最新黄色在线 | 国产精品久久久久久久y | 亚洲欧美日韩一区二区 | 日本夜夜操 | 性一交一乱一伦一A片 | 久久视频精品3线视频在线观看 | 国产一区二区无码蜜芽精品 | 国产精品 日韩 | 国产成人精品综合 | 午夜性福利视频 | 色视频亚洲 | 最近最新的日本免费 | 永久免费在线观看视频 | 国产成人禁片免费观看视频 | 欧美99久久无码一区人妻A片 | 人成乱码一卡二卡三四卡无卡六卡 | 黑帮少爷爱上我第一季在线观看 | 亚洲中文字幕在线观看 | 欧美特级午夜一区二区三区 | 欧美色性| 91精品国产91久久久久久最新 | 91激情 | 韩国久久精品 | 亚洲国产精品久久久久久 | 国产精品亚洲一区二区 | 国产精品扒开腿做爽爽爽日本无码 | 亚洲一区日本 | 999视频在线观看 | 国产色情无码网站视频APP | 成人小视频在线观看 | 国产 日韩 欧美 综合 激情 | 色偷拍亚洲偷自拍 | 欧美视频在线观看免费最新 | 男人把女人桶到喷白浆的软件免费 | 亚洲精品综合在线影院 | 中文字幕 欧美精品 第1页 | 亚洲精品久久久久中文字幕二区 | 激烈娇喘叫床声床震爽文 | 四虎永久免费观看在线 | 亚洲大肥女ass | 好大好硬使劲脔我爽视频 | 2024精品极品国产色在线观看 | 日韩欧美一区二区三区不卡在线 | 国产女同一区二区三区五区 | 地狱天堂2019完整版免费观看 | 色插图午夜影院 | 五月婷婷天 | 日韩 视频在线播放 | 91中文 | 500第一精品福利导航 | 成人电影免费看 | 快播酒色网 | 天天舔天天插 | 好吊色青青青国产在线播放 | 美女图片脱空一点不露 | 成人特级毛片 | 国产资源免费观看 | 91碰在线| 国产乱对白精彩在线播放 | 久久福利视频导航 | 污片网站在线观看 | 成人午夜福利视频镇东影视 | 欧美色tu| 内射中出无码护士在线 | 日本一区二区视频 | 91最新网站免费 | 国产精品视频在线观看 | 成人五夜天| 国产精品午夜自在在线精品 | 台湾MD豆传媒一区二区 | 中文字幕在线不卡日本v二区 | 精品视频在线播放 | 97亚洲狠狠色综合久久久久 | 亚洲午夜免费视频 | 国产做爰又粗又大免费看 | 日本高清在线视频无码 | 亚洲色综合狠狠综合区 | 男女摸下面刺激免费视频软件 | 欧美日本一二三区 | 欧美黑人添添高潮A片视频 欧美激情无码成人A片 | 激情视频亚洲 | 亚洲国产日韩制服在线观看 | 亚洲第一页乱 | 舌头伸进去添少妇好爽高潮 | 韩国轻色系电影 | 国产一卡2卡3卡4卡无卡免费网站 | 波多野结衣手机视频一区 | 91香蕉成人| 男男BL各种姿势地方PLAY文 | 日本黄色大片网站 | 涩涩片大全百度影音 | 黑帮少爷爱上我第一季在线观看 | 日日鲁鲁鲁夜夜爽爽狠狠 | 一区二区三区 日韩 | 成年网站在线观看播放 | 久久精品不卡 | 黄色 在线 | 色玖玖 | 日本少妇做爰全过程毛片 | WWW国产亚洲精品久久麻豆 | 国产三级观看久久 | 在线播放精品 | 色综合久| 97国产精品人妻无码久久久 | 欧美在线观看 cao38 | 狠狠躁日日躁夜夜躁A片小说按摩 | 一个人看的片在线WWW免费中文 | 婷婷综合另类小说色区 | 大陆精品福利网址导航在线 | 国产精品欧美亚洲日本综合 | 国产丰满老熟妇乱XXX1区 | 日本强伦姧人妻无码视频 | 亚洲精品国产综合99久久一区 | 蝌蚪免费视频 | 妖精视频一区二区免费 | 国产精品扒开腿做爽爽爽A片小 | 久久99久久成人免费播放 | 男人站影音先锋男人站 | 欧美69视频 | 日本污视频在线观看 | 日本成人区| 国产在线视频精品视频 | 日本高清视频在线免费观看 | 日产乱码一卡二卡三免费 | 日本精品久久久久中文字幕 | 无码人妻精品1国产婷婷 | 国产精品剧情 | 亚洲欧洲一区二区三区在线观看 | 国内视频一区二区 | 国产精品JIZZ在线观看A片 | 中国免费黄色片 | 国产一区二区三区乱码在线观看 | 色情大尺度吃奶做爰在线观看 | 激情网成人 | 午夜伦伦电影理论片大片 | 黑人干亚洲 | 天天操夜夜添 | 91精品乱码一区二区三区 | 九九香蕉| 国产一区二区久久A片免费 国产一区二区三不卡高清 国产一区二区三区A片在表 | 无码欧美毛片一区二区三 | 王朝影院 | 日韩小视频网站 | 中文字幕人成乱码在线观看 | 亚洲精品久久久无码 | 日本精品在线视频 | 少妇高潮潮喷到猛进猛出小说 | 男男双性高H浪荡小说合集 男男体育生乱yin高H肉汁 | 国产成人无码免费看片软件 | jizz老师| 国产无套视频在线观看香蕉 | 国产精品国产三级国产AV麻豆 | 国产超碰人人爱被IOS解锁 | 免费观看黄A片在线观看 | 国产精品夜夜春夜夜 | 精品一卡2卡三卡4卡 | 国产精品久久久久成人免费 | 日本中文字幕在线视频站 | 亚洲精品第一页中文字幕 | 国产做爰又粗又大太疼了 | 伊人大蕉综合网站亚洲最大 | 永久免费不卡在线观看黄网站 | 日韩免费一级a毛片在线播放一级 | 狠狠五月深爱婷婷网免费 | nu77亚洲综合日韩精品 | 色老板亚洲视频在线观 | 日本高清h色视频在线观看 日本丰满人要无码视频 | 国产福利你懂的 | 我把我的肥岳日出水来多少集 | 色网站免费视频 | 成 人 a v黄 色| 蝴蝶谷成人 | 国产一卡 二卡三卡四卡无卡乱码视频 | 精品无人妻一区二区三区 | 久久在热照片免费 | 四虎最新紧急更新地址 | 色情久久久AV熟女人妻网站 | 无码人妻丰满熟妇奶水区码 | 欧美一卡二卡三卡四卡 | 在线欧美日韩精品一区二区 | jizz亚洲| 国自产拍偷拍精品啪啪AV | 国产精品久久久久久无码不卡 | 色琪琪影音先锋原网站 | 在线精品亚洲观看不卡欧 | 真实乱视频国产免费观看 | 地狱天堂2019完整版免费观看 | 91女神精品系列在线观看66 | 国产精品久久人妻无码电影张丽 | 86版农场主三个女儿 | 青青青在线视频国产 | 人妻天天爽夜夜爽三区麻豆A片 | 日本三级韩国三级韩级在线观看 | 中文字幕乱码熟女人妻水蜜桃 | 精品69久久久久久99 | 麻豆出品必是精品 | 日韩国产无矿砖一线二线图 | 美女视频永久黄网站免费观看 | 婷婷第四色 | 午夜网站在线观看 | 我和乡下妽妽的性故事小说 | 久久国产精品99久久小说 | 久久久久久综合 | 欧美无人区码卡1卡2卡免费 | 亚洲色吧 | 精品亚洲国产成AV人片传媒 | 国产卡一卡二卡3卡4乱码 | 极品销魂一区二区三区 | 成年网站在线观看 | 大尺度做爰啪啪高潮床戏小说 | 在线电影 高清 |