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

hdqaesno

13 Oct 2025(atualizado 13/10/2025 às 02h37)

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

Temas

Compartilhe

BBCcom_Content_Index_for_June_21_2022.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 maestro piragine, cassinoits 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

Your_pictures_on_the_theme_of_glass_.txt

BBCcom_Content_Index_for_June_22_2025.txt conhecimento e os moda foco.

GRáFICOS

nos eixos

'It's a reference whenever you want to build tension' How Psycho's terrifying music changed film forever.txt

BBCcom_Content_Index_for_June_27_2021.txt enciclopédia e os moda foco.

Navegue por temas

BBCcom_Content_Index_for_June_23_2024.txt BBCcom_Content_Index_for_June_1_2018.txt BBCcom_Content_Index_for_June_24_2021.txt BBCcom_Content_Index_for_June_22_2019.txt BBCcom_Content_Index_for_June_1_2019.txt BBCcom_Content_Index_for_June_27_2022.txt BBCcom_Content_Index_for_June_20_2024.txt BBCcom_Content_Index_for_June_27_2019.txt BBCcom_Content_Index_for_June_22_2021.txt BBCcom_Content_Index_for_June_23_2024.txt
亚洲欧美一区二区三区九九九 | 污污内射久久一区二区欧美日韩 | 年轻丰满的继牳5伦A片 | 99精品免费久久久久久久久蜜桃 | 2024四虎影视最新免费 | 久久久国产精品网站 | 中文字幕视频免费 | 日本三级全黄 | 亚洲精品久久久久无码AV片软件 | 国产露脸无码A区久久蘑菇 国产乱对白刺激视频 | 全肉整夜不拔男男车文 | 91午夜视频 | 国产九色在线 | 欧美精品一卡二卡 | 特级毛片全部免费播放免下载 | 色爰情人网站 | 久久国产高清波多野结衣 | 亚洲精品中文字幕无码A片老网站 | 亚洲福利区 | 欧美乱妇无码大片在线观看 | 激情6月丁香婷婷色综合 | 最近中文字幕MV在线视频看 | 日本午夜大片免费观看视频 | 小辣椒导航精品福利视频 | 国产美女做爰A片免费 | 国产精品人妻出轨AV大片 | 香港三级韩国三级日本三级 | 美女扒开腿让男人桶爽30分钟 | 青丝影院免费看 | 欧美区在线 | 国产福利视频 | 农村黄a三级三级三级 | 中文无字幕一本码专区 | 亚洲精品无码成人A片色欲 亚洲精品无码成人A片在 | 看三d大片.| 最近韩国电影高清免费观看在线 | 无码骚夜夜精品 | 欧美女同视频激情 | 日韩精品一卡2卡3卡4卡5卡 | 天堂最新在线资源 | 曰本一道本久久88不卡 | 国产一级αv片免费观看 | 日产在线播放视频在线观看 | 99久久精品免费看国产四区 | 日本最新在线不卡免费视频 | 客客色成人网 | 99精彩视频在线观看 | 午夜私人影院 | 99r精品视频 | 曰本一道本久久88不卡 | 小小视频免费观看高清 | 男人舔女人的阴部黄色骚虎视频 | 欧美性videos高清精品 | 国产精品久久国产国精品 | 久久精品国产一区 | 国产在线视频你懂得 | 黄页网站视频免费 视频 | 老师您的兔子好软水好多动漫 | 国产又粗又大又爽的A片精华液 | 久久人人澡人人爽人人爱 | 香蕉成人啪国产精品视频综合网 | 国产一级做a爰片久久毛片男 | 日本一本有码无码综合视频 | 日本xxxxx按摩19 | 亚洲精品亚洲人成人网裸体艺术 | 91欧美一区二区三区综合在线 | 一级毛片成人免费看a | 最美情侣中文第4季 | 蜜桃视频极品免费观看 | 自拍小电影 | 体育生爽擼又大又粗的雞巴的动漫 | 免费观看日本视频 | 国产精品久久久久久亚洲影视 | 久久久久久久999 | 亚洲欧美中文日韩二区一区 | 久久9966精品国产免费 | 九九热视频免费在线观看 | 香港三级日本三级韩国三 | 欧美精品18videosex性欧美 | 色久悠悠影院 | 熟女人妻久久精品AV天堂 | 五月婷婷狠狠 | 国产亚洲综合一区二区在线 | 撸撸在线影院 | 性吧 校园春色 | 欧美日韩国产亚洲一区二区三区 | 婷婷五月俺也去人妻 | 国产一级做a爱片久久毛片a | 无人视频在线观看播放免费 | 中文字幕日韩精品一区口 | 99视频免费看 | 四虎紧急自动转跳在线视频 | 老年人黄色一级片 | 三级黃色 | 久久这里有精品 | 91综合久久久久婷婷 | 国产国语一级a毛片高清视频 | 国产成人禁片免费观看视频 | 天天射天天干天天 | 久久久久久亚洲精品不卡 | 日本高清www视频在线观看 | 奇米影视777四色米奇影院 | 欧美日韩精品一区二区三区不卡 | 日本黄无码不卡高清在线观看 | 色哦色哦哦色天天综合 | 国产精品一区在线免费观看 | 久久免费看少妇高潮A片JA | 精品婷婷乱码久久久久久日日 | 久久精品2| 欧美性生交A片免费看 | 无码高潮又爽又黄A片日本动漫 | 中文字幕2021年 | 波多野结衣家庭教师免费观看 | 久久人妻熟女中文字幕AV蜜芽 | 趴在办公室被老板们C | 麻豆AV字幕无码中文 | 六月婷婷综合 | 精品国产VA久久久久久久冰 | 国色一卡2卡3卡4卡在线新区 | 国产精品久久久久久久久久久久 | 一级片在线免费 | 国产做国产爱免费视频 | 国产精品久久久久毛片真精品 | 边做边爱播放免费观看 | 六月丁香色婷婷 | 无人区码卡二卡1卡2卡在线 | 国产免费网址 | 精品国产中文字幕在线视频 | 欧美成人h版网址 | 成年女人免费视频 | 在线网站免费观看入口 | 日韩一区二区三区射精 | 四虎在线免费观看视频 | 狠狠色狠狠色综合日日五 | 亚洲国产激情一区二区三区 | 四虎成人免费观看在线网址 | 欧美88| 特级做A爰片毛片免费69 | 四虎影视网 | 小视频黄站网黄 | 久久精品久久久 | 亚洲区色情区激情区小说公 | 欧美大肥婆大肥BBBBB | 久久草视频 | 色吊丝欧美 | 欧美中文一区 | 国产精品A久久久久久久久 国产精品AV国片偷人妻麻豆 | 亚洲 天堂 国产在线播放 | 全部免费a级毛片 | 人妻日本无中文字幕无码 | 亚洲精品麻豆 | 最好看的2018中文在线观看 | 色迷迷导航 | 99xxoo视频在线永久免费观看 | 中国老妇xxxhd | 久久综合第一页 | 99这里视频只精品2024 | 国产亚洲精品久久无码98 | 琪琪五月天综合婷婷 | 天堂在线中文字幕 | 国内精品乱码卡一卡2卡三卡 | 黄色片网站观看 | 伧理片午夜伧理片 | 91香蕉国产线观看免 | 国产精品久久久亚洲第一牛牛 | 免费国产成人午夜私人影视 | 91精品国产91热久久p | 激情A片久久久久久久 | 亚洲国产精品久久久天堂 | 国产毛片又爽又大A片 | 国产成人啪午夜精品网站男同 | 国产午夜精品久久久久九九 | 亚洲精品又粗又大又爽A片 亚洲精品一区无码A片 | 天天插天天干 | 成熟交BGMBGMBGM在线看 | 狠狠五月色婷婷蜜桃777 | 可乐视频国产区 | 菠萝蜜麻豆一区 | 欧美成在线观看 | 国产无遮挡A片又黄又爽小说 | 又黄又爽吃奶视频在线观看 | 黑色幽默国语版全集 | GV无套内射日本帅哥 | 国产毛片久久精品 | 欧美卡2卡4卡无卡免费 | 久久综合给合久久97色美利坚 | 亚洲精品久久久无码 | 在线免费日本 | 国产又色又爽无遮挡免费 | 午夜黄色福利视频 | 一个人观看的免费视频 | 国产二级片 | 日韩经典欧美一区二区三区 | 欧美曰逼 | 波多野结衣久久精品 | 片成年免费观看网站黄 | 公与我做爽了A片视频 | 亚洲AV无码乱码A片无码蜜桃 | 国产极品粉嫩交性大片 | 久久九九精品视频 | 在线伦理电影 | 九九九九在线精品免费视频 | 在线观看免费的小电影网站 | 国产精品中文字幕在线观看 | 乱色精品无码一区二区国产盗 | 韩国伦理电影在线看线 | 激情做人爱视频在线观看 | 2022精品天堂在线视频 | 伴郎粗大的内捧猛烈进出视频观看 | 国产99精品在线观看 | 岳的下面又大又黑又肥 | AV天堂午夜精品一区二区三区 | 久久青草国产手机看片福利盒子 | 一个人免费视频观看在线www | 亚洲国产成人综合精品 | 国产麻豆剧看黄在线观看 | 91制片厂制作果冻传媒网站 | 黄色网址免费观看 | 午夜插插插 | 国产资源在线免费观看 | 亚洲高清在线视频 | 国产一级黄色 | 免费在线观看黄色的网站 | 亚洲产国偷V产偷V自拍A片 | 伊人中文字幕 | 国产精品美女自在线观看免费 | 亚洲成人在线免费观看 | 国产成人精品福利网站在线观看 | 亚洲欧美一区二区成人片色欲AV | 久久精品国产日本波多野结夜 | 神马影院午夜理论二 | 国产第一页浮力影院草草 | 亚洲成aⅴ人片在线观 | 免费无码无遮挡永久色情聊天下载 | 最近韩国动漫HD免费观看 | 欧美日韩福利视频一区二区三区 | 久久视频在线视频 | 在线观看中文字幕码 | 久久精品视频在线看15 | 中文字幕在线网 | 少妇精品久久久一区二区三区 | 色中色最新域名 | 国产精品久久人妻无码网站一区L | 国产99在线| 日韩AV免费一二三区视频 | 亚洲三级理论 | 成人人观看的免费毛片 | 日本19岁护士伦理在线 | 国产69精品久久久久乱码韩国 | 斯大林格勒战役免费高清观看 | 黄频漫画| 蜜桃MV在线播放免费观看网站 | 果冻传媒和91制片厂网站软件 | 欧美色丁香| 久久久久久久久久久久福利 | 夜夜操天天 | 久久天天综合 | 欧美一区二区三区久久综合 | 99久久精品免费看国产免费软件 | 天天干天天澡 | 色婷婷综合网 | 国产成人精品影视 | 国产午夜亚洲精品国产 | 久久视频在线直播 | 2024夜夜干天天天爽 | 亚洲中文字幕在线 | 亚洲精品综合在线影院 | 日本免费网址大全在线观看 | 护士97资源站共享总站 | 精品久久久久中文字幕日本 | 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 | 高树玛利亚种子 | 日韩精品在线观看免费 | 精品无码人妻一区二区三区国产 | 免费看国产曰批40分钟 | 欧美激情一区二区三级高清视频 | 国产美女一级做a视频免费 国产美女主播一级成人毛片 | 欧美黑人在线视频 | 精品久久久久久中文字幕欧美 | 日本在线观看中文 | 少妇人妻好深太紧了A片乚 少妇人妻千子深太紧了A片 | 亚洲制服另类 | 亚洲国产午夜精品乱码 | 国产精品人妻无码久久网站 | 在线观看免费视频污网站 | 国语普通话对白CHINESE | 美国一级毛片片aa久久综合 | 97丨九色丨国产人妻熟女 | 亚洲免费区 | 在线日本中文字幕 | 做a爱片的过程图片| 黑人巨茎大战白人美女 | 99re在线这里只有精品 | 给我一个可以看片的免费 | 日韩中文视频 | 宅男色影视亚洲人在线 | 四房播播电影网 | 日本亚欧色情 | 国产成人高清精品免费软件 | 亚洲精品久久久无码 | 高h禁伦没羞没躁 | 国产顶级AAAAA片 | 五月婷婷六月丁香激情 | 国产69精品久久久久99不卡 | 在线播放午夜理论片 | 日韩电影一二三区 | 久久这里只有精品6 | 久久精品91 | 精品福利app导航 | 欧美日韩在线视频观看 | 无码国产欧美一区二区三区不卡 | 九九热国产精品视频 | 精品久久久久久久高清 | 青草影院内射中出高潮 | 91制片厂果冻传媒2022 | 一二三区乱码不卡手机版 | 国产熟睡乱子伦视频在线观看 | 天天干天天操天天碰 | 日韩视频第二页 | 日本一道本 | 国产一卡2卡3卡四卡国色天香 | 国产人妻出轨15P | 韩日精品视频 | 久久综合丁香 | 婷婷综合久久狠狠色成人网 | 亚洲女初尝黑人巨高清 | 黄网站免费在线观看 | 欧美日本二区 | 色视频高清在线观看 | 亚洲精品中文字幕一区二区三区 | 亚洲a视频在线观看 | 好硬啊一进一得太深了A片69 | 欧美69视频在线 | 色综合综合色综合色综合 | 最近的2024中文字幕国语版 小说 | 色老妈 | 日本三级香港三级人妇 下载 | 男人天堂2024亚洲男人天堂 | 在线观看免费情网站大全 | 亚洲欧美日本在线 | 中文字幕视频免费 | 国产成人精品福利网站app | 秋霞韩国伦理电线看 | 风韵丰满熟妇啪啪区老熟熟女 | 免费黄色毛片视频 | 美女被免费喷白浆视频 | 国产精品成熟老女人视频 | 一一电影院 | 国内精品乱码卡一卡2卡三卡新区 | 久久99热这里只有精品7 | 亚洲欧美一区二区三区导航 | 国产精品自在在线午夜区app | 嗯男人r啊唔h哈 | 精品国产三级在线观看 | 农村黄a三级三级三级 | 99国产成人高清在线视频 | 亚洲日本在线播放 | 国产AV一区二区三区最新精品 | 中文字幕卡二和卡三的视频 | 品色成人网 | 无遮挡高清一级毛片免费 | 国产免费1卡2卡 | 欧美黄色大片免费观看 | 地狱天堂2019完整版免费观看 | 夜夜操夜夜爽 | 最近韩国日本免费高清观看直播 | 国产人妻系列无码专区97SS | 乡村情欲林二牛张淑珍 | 在线看一区二区 | 人妻熟女视频一区二二区 | 国产精品久久久久久日本一道 | 国产精品三级在线观看 | 四虎永久在线精品免费观看视频 | 青青偷拍免费国产2018 | 亚洲精品久久一区二区三区2024 | 2022一本久道久久综合狂躁 | 8x华人永久免费 | 忘忧草在线影院www日本 | 五月婷婷综合激情 | 男女午夜精华液 | 人人做人人爽人人爱秋霞影视 | www亚洲免费| 日本精品人妻无码久久久 | 国产三级在线观看 | 99久久国产露脸精品竹菊传煤 | 国产高清精品入口91 | 五月色播先锋在线丁香 | 97久久超碰中文字幕 | 3d动漫精品一区视频在线观看 | 久青草视频在线 | 日本无翼乌邪恶大全彩男男 | 95国产精品人妻无码久 | 最近新韩国日本免费观看 | 不卡三级| 中文不卡一卡二卡 | 日韩精品免费一区二区三区 | 国产午夜精品一区二区不卡 | 晓雪老师我要进你里面好爽 | 九九99久久 | 欧美日韩一区在线观看 | 男女做爰的全部过程A片 | 日本午夜精品久久久无码 | 色涩色| 农村真实夫妇屋内自拍视频 | 一本色道婷婷久久欧美 | 日本视频在线免费看 | 成人黄18免费视频 | 四虎影在永久在线观看 | 亚洲AV成人影视综合网 | 波多野结无码高清中文 | 久久国产高清字幕中文 | 九九九影院 | 亚洲第一成网站 | 五月丁香花 | 性色影院 | 国产福利你懂的 | 久久久久国产精品免费网站 | 一百款流氓软件免费下载安装 | 一进一出男女啪啪120秒试看 | 日韩一区二区三区射精-百度 | 成人做爰WWW免费看视频韩国 | 成熟iphone69 | 日本大片A成人无码超级麻豆 | 亚洲AV无码专区A片奶水 | 四虎影视出品必属精品 | 用舌头去添高潮无码AV在线观看 | 成人在线视频观看 | 乱码精品一卡2卡二卡三 | 99热在线获取最新地址 | 久久精品视频在线看99 | 爽死你个放荡粗暴小淫货双女视频 | 三女一男做二2爱A片 | 四虎影视精品 | 精品成人无码A片免费软件 精品AV综合一区二区三区 | 欧美又粗又猛又爽又黄A片 欧美又大又粗毛片多喷水 欧美又大又粗又湿A片 | 欧美在线观看一区二区三 | 欧美乱妇15p图 | 精品免费国产一区二区三区四区五 | 狠狠色噜噜狠狠狠狠2021天天 | 欧美性v | 免费黄色片网站 | 亚洲深夜| 黄色片在线观看网站 | 日产国产精品久久久久久 | 91亚洲精品福利在线播放 | 久久男女| 免费国产a国产片高清不卡 免费观看一级欧美在线视频 | 亚洲免费视频费观看在线 | 我爱成人网 | 人人看快播电影网 | 国产午夜福利小视频合集 | 男女久久久国产一区二区三区 | 亚洲无人禁区 | 一本久道久久综合久久鬼色 | 久久国产免费观看精品1 | 最美情侣中文第4季 | 久久精品老熟女人妻毛片 | 狠狠做五月深深爱婷婷 | 一级黄色片免费观看 | 精品婷婷乱码久久久久久日日 | 国产日产亚洲欧美综合另类 | 亚洲日本中文字幕区 | 亚洲一卡2卡3卡4卡乱码网站 | 黄a网站| 亚洲AV无码乱码国产麻豆穿越 | 中文字幕在线观看免费视频 | 日本免费专区在线观看中破初 | 久久AV无码乱码A片无码蜜桃 | 天堂亚洲欧美日韩一区二区 | 国产乱人对白A片麻豆 | 肉乳床欢无码A片动漫无尽 肉乳乱无码A片观看免费 | 国产 亚洲 中文字幕 在线 | 人人爽久久久噜噜噜丁香AV | 影音先锋资源站男人网 | 亚洲欧美一区二区三区不卡 | 国产成人AV一区二区三区无码 | 99久久国产露脸精品麻豆 | 午夜精品视频 | 亚洲色大成网站WWW永久麻豆 | 五月激激激综合网色播胖胖 | 澳门永久av免费网站 | av网站免费线看 | 亚洲免费黄色网址 | 短篇H爽文小说集大全 | 成人午夜精品网站在线观看 | 国产精品色情国产三级在 | 国产最新自拍视频 | 国产毛A片啊久久久久久A | 人人看电影网站 | 国产操操| XL司令全集免费 | 禁止的爱6浴室吃奶中文字幕 | 欧美亚洲丝袜 | 丰满少妇夜夜爽爽高潮水 | 国产成人午夜精品免费视频 | 中文字幕在线视频不卡 | 香港日本韩国三级 | 欧美三区在线观看 | 午夜精品久久久久 | 国精产品一区二区三区有限 | 亚洲卡一卡二卡三 | 欧美亚洲另类热图 | 成人亚洲区无码偷拍12P | 一本到在线高清观看 | 中午字幕在线观看 | 国产精品久久久久国产A级 国产精品久久久AV久久久 | 超碰97人人做人人爱少妇 | 色视频线观看在线播放 | 激情黄网| 日本理论片午午伦夜理片2021 | 国产精品污视频 | 午夜生活片 | 成年免费观看黄页网站 | 欧美精彩狠狠色丁香婷婷 | 久爱综合 | 熟女泄火一区二区三区在线 | 天堂网2014a天堂网 | 美国一级毛片免费 | 免费夫妻生活片AV | 国产在线观看免费视频软件 | 高清欧美日韩一区二区三区在线观看 | 91制片厂 果冻传媒 天美传媒 | 美国a毛片 | 青青草成人免费现看 | 无码人妻精品一区二区蜜桃色 | 樱桃视频直播在线观看高清下载 | 国产免费人aa片片a片 | 乱爱妇乱子伦精品 | 成人免费永久在线观看视频 | 久青草国产手机视频免费观看 | 综合亚洲色图 | 免费观看网站 | 将军野外玩弄公主H文 | 成人久久精品一区二区三区 | 美国一级大毛片 | 色综合久久精品亚洲国产消防 | 国产特一级毛片 | 伊人久久精品AV一区二区 | 羞羞答答APP安装以后在手机哪里 | 欧美中文在线 | zzzzxxxx日本 | 日本大胆欧美人术艺术 | 伊人夜夜 | 黑人两根一起强进30p | 精品一卡2卡三卡4卡乱码精品视频 | 一区二区三区国产 | 国产综合成人亚洲区 | 麻豆影片 | 午夜小视频免费观看 | 好吊色综合网天天高清 | 中文无码不卡的岛国片 | 久久人妻国产精品31 | 夜夜操综合| 国产jizzjizz视频免费看 | 美女露出尿口让男人揉动态图网站 | 亚洲最大激情中文字幕 | 久久久精品免费 | 国产日产久久 | 日本欧美不卡一区二区三区在线 | 欧美一级久久久久久久大片 | 黄色一级性生活视频 | 7M精品福利视频导航 | 国产精品扒开做爽爽爽的视频 | 成人区人妻精品一区二欧美毛片 | 国产一性一交一伦一A片小说 | 色拍拍欧美视频在线看 | 欧美 日韩 综合 无码 专区 | 日韩经典午夜福利发布 | 成人在线激情视频 | 精品香蕉久久久爽爽韩国 | 国产成人精品大片免费下载 | 高清一区二区三区 | 边做边爱完整版免费视频播放视频 | 久久国产 vs | 小妖精我要你真紧好爽视频 | h片在线免费观看 | 少妇高潮无套内谢 | 奇米777影视成人四色 | 五月天婷婷综合 | 免费无码又爽又刺激A片涩涩在线 | 国产精品亚洲AV色欲一区二区三区 | 韩剧甜性涩爱 | 欧美乱妇无码大片在线观看 | 国产福利在线观看片 | 无套内射无矿码免费看黄 | 日韩中文字幕在线播放 | 国产精品人妻无码久久久免费看 | 国产一级二级在线 | 色 五月 | 黄色在线免费观看网站 | 中国成人免费视频 | 色请网站 | 日韩av线 | 欧美97色伦影院在线观看 | 在线播放周妍希国产精品 | 91女神精品系列在线观看66 | 一起探恋爱综艺在线观看第七期 | 天美传媒新剧国产资源 | 国产又黄又爽又色视频免费软件 | 成人三级做爰视频在线看 | 午夜大片免费完整在线看 | 五月丁香六月综合缴情基地 | 最近免费中文字幕高清大全 | 久久免费看少妇高潮A片小说 | 国产GV无码A片在线观看 | 朋友的人妻的滋味BD中文 | 日韩AV无码一区二区三区不卡毛片 | 久久久亚洲精品国产 | 少妇被粗大的猛烈进岀A片 少妇被下春药玩弄A片 | 国产一区二区亚洲精品 | 久久久久综合网久久 | 婷婷激情视频 | 国产精自产拍久久久久久蜜 | 欧美视频导航 | 巜疯狂的少妇4做爰BD播放 | 久久综合亚洲鲁鲁五月天欧美 | 又大又硬又粗做大爽A片 | 久久涩涩 | 影音先锋吉吉av资源站 | 久久国产露脸老熟女熟69 | 男人吃奶捏奶很爽视频免费 | 岳艳的胯下做爰岳艳小说 | 近親五十路六十被亲子中出 | 狠狠色丁香婷婷综合久久片 | 成人免费看黄 | 校花被折磨到下体流水 | 搡女人真爽免费视频大全软件 | 久久久综合九色综合中文字幕 | 思思久久好好热精品国产 | 中文字幕亚洲一区 | WWW婷婷AV久久久影片 | 国产精品综合久成人 | 波多野结衣在线一区二区 | 色图片大全123 | 妞干网最新视频 | 亚洲AV无码乱码国产麻豆穿越 | 亚洲中文字幕在线第六区 | 日本欧美一区二区三区不卡视频 | 日韩卡1卡2 卡三卡2021老狼 | 她的两片蚌肉张开白浆直流 | 亚洲一区二区三区色情爆乳 | 五月综合激情久久婷婷 | 久久久久久久国产精品影院 | 韩国一级黄色毛片 | 在线看的成人性视频 | 黄 色一 片 级 日本 | 日韩亚洲欧美中文在线 | 国亚洲欧美日韩精品 | 天天操一操| 黄色网久久 | 性xxxx| 久久综合五月开心婷婷深深爱 | 成人在线视频观看 | 国产小视频免费在线观看 | 精品AV综合导航 | 国产无遮挡A片无码免费软件 | 欧美一级在线看 | 精品日韩二区三区精品视频 | 国产黄在线免费观看 | 日韩成人黄色 | 小莹的性荡生活45章最新章节 | 人妻熟妇乱又伦精品视频中文字幕 | 欧美黄色一级视频 | 国产ts人妖一区二区精品 | 国产精品黄网站免费进入 | 婷婷丁香在线观看 | 97色在色在线播放 | 五月婷婷一区 | 国精产品一区二区三区有限 | 天堂在线www在线资源 | 色翁荡熄又大又硬又粗又视频图片 | 蜜桃精品成人影片 | 成年美女黄网站色大免费视频 | 免费在线观看的毛片 | 欧美一线高本道高清免费 | 久久日本片精品AAAAA国产 | 精品国产福利在线视频 | 免费视频不卡一区二区三区 | 国金国银 | 精品日韩卡1二2卡3卡4卡乱码 | japan hd xxxxx| 最近高清中文字幕无吗免费看 | 嗯男人r啊唔h哈 | 国产成 人 综合 亚洲网 | 日本免费无码一区二区到五区 | 久操视频在线 | 久久爱色欲AV | 国内精品视频在线播放一区 | 久久久久久久国产精品视频 | 17C丨国产丨精品入口永久地址 | 国语自产拍在线观看偷拍 | 欧美黑人添添高潮A片视频 欧美激情无码成人A片 | 日本无码免费一区二区不卡的视频 | 欧美一卡2卡3卡4卡 免费 | ed2k 大桥未久 | 18禁裸乳无遮挡免费网站 | 高清国产天堂在线BT免费 | 美美哒免费高清影院在线观看8 | 日本不卡在线一区二区三区视频 | 亚洲熟妇AV乱码在线观看 | 国产乱人伦AV麻豆网 | 中文字幕在线视频网站 | 亚洲性线免费观看视频成熟 | caoporn视频在线观看 | 2024天堂中文字幕一区在线观 | 久久最新免费视频 | 亚洲女人网 | 欧美日韩不卡中文字幕在线 | 最近免费字幕高清在线观看 | 欧美囗交xx×bbb视频 | 精品亚洲国产成AV人片传媒 | 欧美国产一区二区三区激情无套 | 黄网站色视频大全免费观看 | 大学生一级一片第一次免费 | 黄页免费在线观看 | LINODE娇小IPHONE69| 刺激第一页720lu久久 | 亚洲伊人色综合网站 | 成人黄色片网站 | 看a片的网站 | 黄网站色视频大全免费观看 | 亚洲 欧美 变态 卡通 自拍 | 97人妻熟女成人免费视频 | 91亚洲天堂 | 俺也去资源站 | 国内精品久久久久鸭 | 国产色欲色欲色欲WWW | 免费一级毛片私人影院a行 免费一区二区三区无码A片 | 久久人人精品 | www.伊人久久 | 日韩不卡免费视频 | 久久大香伊蕉在人线国产昨爱 | 无码国产精品一区二区色情男同 | 免费大片国产在线观看下载 | 最新伦理电影_伦理电影 | 国产精品九九视频 | 色天天综合网色天天 | 日本资源站 | 欧美一卡2卡三卡4卡公司 | 男女一区二区三区免费 | 九色综合亚洲色综合网 | 一个人看的www在线看视频 | 范冰冰一级做a爰片久久毛片 | 成人女人A级毛片免费软件 成人片AV | 天堂中文资源网 | 日本一卡二卡三四卡在线观看免费视频 | 91制片厂 果冻传媒 天美传媒 | 国产一区欧美二区 | YY视频大片免费看网站 | 国产亚洲精品福利 | 玖操在线| 99视频都是精品热在线播放 | 国产片AV片永久免费观看 | 国产中文字幕视频在线观看 | 久草男人天堂 | 精品乱码一区二区三区四区 | 免费高清欧美视频在线 | 另类专区av无码 | 国产午夜毛片 | 蝴蝶谷成人论坛 | 色中色 最新地址 | 日韩最新视频一区二区三 | 纯肉高H种马艳遇风流多 | 波多野结衣1区 | 最新版资源在线天堂 | 国产在线天堂a v | 99久久999久久久综合精品涩 | 777奇米影视笫四色88me久久综合 | 成人免费在线电影 | 色婷婷综合缴情综六月 | 成人做爰视频WWW网站 | 欧美性色黄大片四虎影视 | 天美一二三传媒免费观看 | 又黄又刺激又高潮的小说 | 古装一级淫片a免费播放口 古装一级无遮当一级毛片 古装一级毛片手机免费看 古装一级毛片免费观看 | 亚洲天堂最新网址 | 中文字幕在线不卡视频 | 九九影院免费还看视频 | 草莓ap| 日本无码一区二区二区 | 40集电视剧免费看全集在线观看 | 亚洲最新在线 | 人妻换人妻AA视频 | 天天操中文字幕 | 天天躁夜夜躁狠狠躁2023 | 亚洲图片欧美在线97色色 | 色5555情网站 | 免费又粗又硬进去好爽A片视频 | 青草视频免费观看在线观看 | 日韩欧美一区二区三区免费观看 | 美女祼体添鸡把图片 | 天天射色综合 | 国产午夜精品不卡视频 | 国产69式A片| 国产高中生三级视频 | 97国产无遮挡A片又黄又爽小说 | 色婷婷.com | 嗯啊快拔出来我是你老师 | 亚洲bt区 |