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

lwybnpzh

11 Oct 2025(atualizado 11/10/2025 às 00h19)

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

Temas

Compartilhe

The composer whose brother took the credit.txt'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

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

'Its strength is loteria florida pick 3 nocheits 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

Zelensky_condemns_ruthless_attack_after_Russia_hits_main_government_building_in_Kyiv.txt

The flood warnings that save lives.txt ponto quente e os foco ponto quente.

GRáFICOS

nos eixos

Yorkshire reservoir levels fall below one third despite rainfall.txt

The hidden drawings of Cambodia’s ancient temples.txt abrangente e os enciclopédia abrangente.

Navegue por temas

The traditional Turkish pudding with a surprising twist.txt The_Italian_valley_that_holds_the_recipe_for_living_over_100.txt The man who lives in a library with no rules.txt The first two-Michelin-star Chinese restaurant outside Asia.txt The first two-Michelin-star Chinese restaurant outside Asia.txt The_French_Rivieras_picture-perfect_car-free_island_escape.txt The power of making and owning decisions.txt The insulting 'Vinegar Valentine' of Victorian England.txt The scientists drilling into an active Icelandic volcano.txt The blunder that changed chickens forever.txt
韩国日本三级在线 | 成人免费视频在线观看 | www.毛片| 99在线视频免费观看视频 | 精品乱码久久久久久中文字幕 | 亚洲精品一区二区三区福利 | 婷婷在线五月 | 特级做A爰片毛片免费看无码 | 黄色成年视频 | 国产一卡2卡3卡4卡网站免费 | 美国一级毛片完整高清 | 国产成 人 综合 亚洲网 | 蝌蚪网在线视频 | 伊人在综合 | 新婚人妻不戴套国产精品 | 安与安寻 | 狠狠操网站 | 小妖精朕受不了了高h | 中文幕无线码中文字蜜桃 | 午夜亚洲动漫精品AV网站 | 午夜精品久久久久久久爽 | 亚洲最大色 | 天天干天天综合 | 少妇啪啪AV一区二区三区 | 亚洲欧美日韩中文字幕在线不卡 | 亚洲乱色熟女一区二区三区蜜臀 | 亚洲小说在线图片色 | good日本网站三级 | 最新日韩中文字幕 | 日韩欧美一区二区三区在线视频 | 吉泽明步高清无码中文 | 午夜不卡久久精品无码免费 | 第四色新网站 | 日产中文乱码字幕无线观看 | 69国产成人综合久久精品 | 国产人在线成免费视频 | 激情深爱 | 美女午夜色视频在线观看 | 欧美黄片| 亚洲A片无码一区二区三区在线 | 国产午睡沙发系列大全 | 波多结衣一区二区三区 | 色噜噜狠狠色综合欧洲selulu | 91欧美精品综合在线观看 | 日本视频播放免费线上观看 | 歪歪漫画羞羞漫画国产 | 久青草免费在线视频 | 再深点灬舒服灬太大了添A片小说 | 国色天香WWW视频 | 日本欧美一区二区三区片 | 欧美日韩中文国产一区二区三区 | 最近韩国日本免费观看百度 | 草莓丝瓜视频下载-丝瓜视18岁 | 日韩国产午夜一区二区三区 | 亚洲AV久久久久久久无码 | 国产ww久久久久久久久久 | 亚洲精品伦理熟女国产一区二区 | 被几个人强的好爽小说 | 日本中文在线播放 | 亚洲 日韩 在线 国产 精品 | 国产丝袜护土调教在线视频 | 大香区一二三四区2024 | 国产成人免费 | 91精品国产高清91久久久久久 | 日韩美无码有码人妻精品 | 色搜成人搜索 | 真人性做爰无遮A片免费 | 欧美性受xxxx白人性爽 | 精品久久久久久免费影院 | 影音先锋av色咪影院 | 动漫纯肉黄无码动漫日本 | 日本欧美一区二区三区免费不卡 | 日韩精品一区二区三区中文3d | 毛片导航 | 日本韩国欧美一区 | sss欧美一区二区三区 | 狼人香蕉网 | 色天使色妺妺网站 | 欧美一区a | 国产免费三级a在线观看 | 午夜精品在线 | 涩涩97| 啊轻点灬大JI巴又大又粗A片 | 五月婷婷一区 | 国产最新自拍 | 不卡免费视频 | 无码一区二区三区亚洲人妻 | 日本免费的一级v一片 | 少妇饥渴放荡的高潮喷水 | 永久免费视频 | 精品国产成人亚洲午夜福利 | 91福利国产在线观看一区二区 | 成人亚洲区无码偷拍12P | 狠狠色噜噜狠狠狠狠奇米777 | 一级做a爰全过程免费视频毛片 | 中文精品99久久国产 | 我可以再往深处一点吗视频 | 久久亚洲人成网站 | 波多野结衣办公室jian 情 | 久re这里只有精品最新地址 | 国产精品2022不卡在线观看 | 校花被房东C得合不拢腿H男男 | www.色av.com| 亚洲一区二区三区秋霞秋理 | 日本一区二区三区在线视频观看免费 | 国产一级毛片潘金莲的奶头 | 欧美做爰免费大片视频 | 国产做爰完整版在线观看 | 疯狂揉小泬到失禁高潮AV | 欧美电影在线观看 | 色鬼综合| 粉泬毛多水多30岁女人都是水 | 国产精品99久久久久久小说 | 男人使劲躁女人过程A片 | 苍井空a v 免费视频 | 好硬啊一进一得太深了A片69 | 日韩精品在线视频观看 | 国色天乡官网 | 亚洲视频999| 俺也去官网 | 草草免费观看视频在线 | 国产亚洲AV综合一区二区A片 | 拍拍拍无档又黄又爽视频 | 人妻丰满熟妇V无码区A片免费看 | 青草青草久热精品观看 | 国产乱码一区二区三区 | 日韩亚洲制服丝袜中文字幕 | 中日文字字幕乱码视频 | 免费视频大片在线观看 | 日本欧美一区二区三区视频 | 欧美成人69| 我要看WWW免费看插插视频 | 国产黄色在线免费观看 | 日日夜夜免费精品视频 | WWW国产亚洲精品久久小说 | 国产精品天天影视久久综合网 | 日本欧美亚洲中文在线观看 | 欧美女人xx| 可以在线看黄的网站 | 欧美 亚洲 另类 综合网 | 美丽的小蜜桃2主演其他电影 | 午夜影院c绿象 | 国产内地激情精品毛片在线一 | 国产69精品久久久久人妻 | 在线观看中文字幕一区 | 色噜噜狠狠色综合欧洲selulu | 日本最色网站 | 亚洲精品久久久久无码AV片软件 | 97精品视频在线观看 | 国产熟睡乱子伦视频在线观看 | 国产又色又爽无遮挡免费 | 日本无码毛片一区二区手机看 | 亚洲精品伦理熟女国产一区二区 | 成年网站在线播放 | 国产精品A成V人在线播放 | WWW亚洲精品少妇裸乳一区二区 | 伦敦金属交易 | 欧美极品少妇XXXOOO图片 | 免费无码一区二区三区A片蜜臀 | 芊芊的被校长脔日常H | 国产精品AV色欲蜜臀在线 | 青青青国产在线手机免费观看 | 粗大新婚娇妻娇嫩 | 91精品手机国产在线观 | 国内精品A片XXX久久久 | 久久久久久综合一区中文字幕 | 国产欧美日韩灭亚洲精品 | www.五月天 | 国产微拍一区二区三区四区 | 亚洲九色| 波多野结衣免费在线 | 国产一区二区影院 | 久久视频在线观看精品 | 欧美亚洲国产一区 | 91久久精品国产免费一区 | 性色视频免费 | 四虎影视国产精品永久在线 | 青青国产| 国产精品20247人妻精品冫 | 色噜噜影院 | 被公侵犯肉体中文字幕电影 | 日本韩国亚洲欧美在线 | 免费看黄色一级片 | 欧美乱熟人妻色情影视 | 夜夜操狠狠操 | 国产色婷婷亚洲999精品小说 | 日本最新免费网站 | 成人无码A片一区二区三区免 | 色青片大全电影国语 | 人妻熟女 视频二区 视频一区 | 纯肉合集(高H) | 羞羞麻豆国产精品1区2区3区 | 九九热在线视频观看这里只有精品 | 一级一级特黄女人精品毛片视频 | 麻豆视频在线观看完整版 | 校园H所有人随时随地做 | 免费精品精品国产欧美在线 | 日日视频 | 久久久午夜影院 | 粗好大用力好深快点漫画 | 乱码视频午夜在线观看 | 欧美国产伦久久久久 | 久久综合九色综合国产 | 国产亚洲精品精品精品 | 精品日本亚洲一区二区三区 | 97色精品视频在线观看免费 | 一个人看的视频www在线观看免费 | 亚洲欧美日韩在线不卡中文 | 欧美性狂猛bbbbbbxxxx | 波多野结衣中文字幕在线视频 | 最新版天堂资源官网 | 好硬啊进得太深了A片无码视频 | 欧美性生交大片免费看A片 欧美性生交大片免费看A片免费 | 国产色精品久久人妻 | 国产视频网 | 国产乱码精品一区三上 | 伊人影院久久 | 成人免费又大又爽A片视频 成人女人A级毛片免费软件 | 国产资源一区 | 久久丫精品忘忧草西安品 | 国产一国产看免费高清片 | 疯狂少妇2做爰中文字幕 | 免费无码一区二区三区A片蜜臀 | 九一果冻传媒制片入口 | 国产精品手机在线播放 | 在线不卡日本v二区三 | 日韩视频一区二区 | 国产精品久久久久久人妻精品A片 | 五月丁香国产在线视频 | 樱花草视频在线观看免费高清WWW | 亚洲乱码国产一区三区 | 国产精品成人久久久 | 日本一区午夜艳熟免费 | 欧美三级经典免费播放 | 久草视频在线资源 | 高清自拍亚洲精品二区 | 色综合自拍 | 国产人妻午夜在线无码 | 无套内射在线无码播放 | 91网站网站网站在线 | 日韩精品不卡 | 天美传媒新剧国产网站 | 日本一二三不卡视频 | 欧美另类网 | 亚洲色图激情文学 | 国产午夜小视频 | 欧美久| 亚洲国内精品自在线影院牛牛 | 免费看a毛片 | 日本丰满大乳人妻无码苍井空 | 成人免费播放视频777777 | 人人看| 欧美AAAA级A片又粗又硬 | 精品一二三区久久AAA片 | 新版天堂资源中文在线 | 国产97在线 | 亚洲 | 国产凸凹视频熟女A片 | 天天干天天做 | 亚洲精品第一区二区APP | 日韩免费A片奶头 | 偷拍自拍 亚洲色图 | 被黑人做的白浆直流 | 真实国产乱子伦露脸 | 菊色宫快播电影 | 自偷自拍三级全三级视频 | 久久九九视频 | 色婷婷亚洲婷婷7月 | 成年黄网站色大免费全看 | 妞干网免费在线 | 久久精品这里只有精品 | blacked欧美黑粗硬大free beeg -日本 beeg.黑人 | 六月丁香激情 | 色中地址| 亚洲AV久久无码精品热九九 | 中文字幕2区 | 伦理片2488电影伦理片 | 奇米777狠狠色噜噜狠狠狠 | 九九热在线视频观看这里只有精品 | 偷拍自怕亚洲在线第7页 | 国产jizzjizz视频全部免费 | 日韩欧美一区二区三区免费观看 | 精品国产乱码久久久久久小说 | 亚洲欧美强伦一区二区另类 | 欧美在线精品一区二区在线观看 | 国产成人在线观看网站 | 日本福利视频导航 | 国产黄大片在线观看 | 国产一国产a一级毛片 | 久青草国产97香蕉在线视频 | 免费高清在线爱做视频 | 菊色宫快播电影 | 国产又大又粗又硬的A片 | 日本a级三级三级三级久久 日本a级片视频 | 免费观看黄色片 | 99er4久久视频精品首页 | 久久综合久久综合九色 | 澳门一级毛片手机在线看 | 成人性大片免费观看网站YY | 精品一区二区三区高清免费观看 | 亚洲欧洲成人 | 日韩 欧美 国产 师生 制服 | 中文字幕亚洲码 在线观看 中文字幕无线观看在 | 无码人妻深夜拍拍AAA片 | 日本视频免费在线 | 日本v在线 | 国产欧美精品系列在线播放 | 最近最新中文字幕免费的一页 | 色婷婷亚洲 | 日本一区二区高清免费不卡 | 婷婷爱五月天 | 人禽性xxxbbb欧美 | 忘忧草.WYC.IA | 日本香港三级和澳门三级 | 尤物精品国产第一福利三区 | 日本丰满大乳人妻无码苍井空 | 激情黄网| 日本一本二本免费视频在线观看 | 欧美成人免费看片一区 | 99国产成人精品2021 | 国产精品日韩欧美一区二区三区 | 亚洲日韩一区精品射精 | 99视频30精品视频在线观看 | 国产色婷婷一区二区三区 | 日本肉肉口番工全彩动漫 | 受快穿被肉来肉去NP男男 | 国产成人精品视频 | 丰满岳乱妇一区二区三区 | 亚洲AV无码精品蜜桃 | 真人视频一级毛片 | 国产精品久久久久久久久免费观看 | 亚洲精品免费视频 | 曰批全过程免费视频在线观看网站 | 午理论理影片被窝 | 免费黄色三级网站 | 欧美又粗又大又爽的A片 | 99久久99久久精品国产片果冻 | 成年妇女免费播放 | 国内精品中文字幕 | 黄到下面流水的爽文很污的情话 | 成人亚洲A片V二区三区久久 | 国产精品久久国产国精品 | 四虎影在线永久免费四虎地址8848aa | 国产亚洲精品久久综合阿香 | 怡红院成人在线 | 亚洲综合在线视频自拍 | 亚洲精品乱码8久久久久久日本 | 久久草在线精品视频99 | 曰本女人一级毛片看一级毛 | 欧洲特级做A爰片久久毛片A片 | 国产精品第12页 | 国产精品久久久久久吹潮 | 国产精品一区二区三区高清在线 | 久久中国 | 自拍一区 综合图区 | 日本A级A做爰片免费观看 | 18以下勿进色禁网站永久视频 | 乱码一二三乱码又大又粗 | 最好的免费电影网站 | 丁香五月天的最新地址 | 国产精品网站在线进入 | 成人黄色在线免费观看 | 麻豆高潮AV久久久久久久 | 国产精品日本无码久久一老A | 日本又色又爽又黄又免费网站 | 免费国产美女爽到喷出水来视频 | 黄色网址免费大全 | 久久国产成人精品Av | 久久黑人| 强被迫伦姧高潮无码A片漫画 | 天天色综网| 蜜臀AV久久国产午夜福利软件 | 性xxxx视频在线观看 | 欧美黑人乱大交灬太大了视频 | 制服丝袜 快播 | 农村黄a三级三级三级 | 亚洲第六页 | 久草app黄 | 2022色婷婷综合久久久 | 99热这里只有精品免费国产 | 好紧好湿太硬了我太爽了文字 | 男男野战爆了我的菊BL | 在线播放国产精品 | 狼狼躁日日躁夜夜躁A片 | 影音先锋av不撸 | 久久综合九色欧美综合狠狠 | 欧美激情一区二区三级高清视频 | 欧美又大粗又黄又爽无码 | 丁香五月激情缘综合区 | 青草视频网 | 夭天干天天做天天免费看 | 亚洲一卡2卡二卡4卡乱码 | 久久久午夜影院 | 久久好在线视频 | 天天干天天做 | 公嗲嗯啊轻点公大ji巴 | 婷婷在线视频 | 天天影视色欲 影视 | 91午夜精品亚洲一区二区三区 | 国偷盗摄自产福利一区在线 | 日本调教网站 | 日本国产成人精品无码区在线网站 | 国产福利视频在线观看福利 | 亚洲欧美手机在线观看 | 国产欧美一区二区三区免费 | 欧美最猛性xxxxx喷水 | 国产成人精品必看 | 在线观看网站 | 九一视频在线观看 | 亚洲区色情区激情区小说公 | 手机在线观看黄色网址 | 久久毛片视频 | 久久综合亚洲精品一区二区 | 亚洲精品一区国产欧美 | 日本中文在线 | 国产三级多多影院 | WWW国产亚洲精品久久小说 | 老师我好爽再深一点办公室 | 成人无码A片在线观看 | 免费看大黄高清网站视频在线 | 免费黄色在线网站 | 日本XXXWWW在线观看 | 亚洲一级毛片免观看 | 撞击着旗袍美妇的肉臀 | 91制片厂果冻传媒七夕 | 中文字幕在线视频免费 | 国产区精品综合在线 | 日韩伦理片 | 亚洲国产熟妇无码一区二区三区H | 久久99精国产一区二区三区四区 | 成人老司机深夜福利久久 | 男男挤奶油进去PLAY高污 | 成人 网| 免费黄色三级网站 | 久久久久久99 | 亚洲色图第四页 | 欧美AAAAAA级午夜福利视频 | 中文字幕精品久久久久人妻红杏1 | 要色地址 | 丝袜偷窥亚洲综合 | 日本三级全黄 | 国产午夜精品视频在线播放 | 国产女人毛片好多水 | 四虎欧美在线观看免费 | 国产精品亚洲欧美动漫卡通 | 两个女人互添下身爽舒服小说 | 中日韩一卡二卡三卡四 | 精品精品国产理论在线观看 | 牛牛影视精品一区二区在线看 | 国产在线观看免费视频在线 | 国产欧美日韩网站 | 日韩高清影片免费播放 | 成人网免费视频 | 天天躁日日躁狼狼超碰97 | 91av视频在线观看 | 天天拍夜夜操 | 狼狼鲁色在线视频播放 | 午夜免费看视频 | 国产人伦人妻精品一区二区 | 日本成熟人妻理伦无码新片 | 日日日日人人人夜夜夜2017 | 偷看洗澡好多毛 | 国产资源在线免费观看 | 91在线看视频 | 国产亚洲精品久久精品69 | 欧美人与zozoxxxx另类 | 免费一级特黄欧美大片久久网 | 偷拍自偷 亚洲 欧美20P | 久久精品麻豆日日躁夜夜躁妓女 | 国产精品综合一区二区 | 五月色丁香婷婷网蜜臀AV | 四虎影视影院手机在线看 | 播五月色五开开心五月 | 免费乱理伦片在线观看八戒 | 三级毛片黄色 | 亚洲国产天堂在线观看 | 国产经典哔哩哔哩 | 四虎影视国产精品 | 亚洲欧洲日本精品 | 欧美日韩中文国产一区发布 | 亚洲天堂最新网址 | 再猛点深使劲爽免费视频 | 欧美日韩不卡合集视频 | 欧美激情亚洲一区中文字幕 | 欧美又大又硬又长又粗A片 欧美又黄又大又爽A片 | 娇妻在客厅被朋友玩得呻吟漫画 | 在教室伦流澡到高潮H女攻视频 | 中文不卡一卡二卡 | 四虎影视永久在线观看 | 日本三级韩国三级美三级91 | 顶级少妇做爰视频在线观 | 搡女人真爽免费视频大全 | 日本电影一区二区三区 | 漂亮少妇啪啪高潮大叫小说 | 欧美日本道免费二区三区 | 午夜精品久久久久久久久日韩欧美 | 黄色片网站大全 | 亚洲天堂视频在线免费观看 | 精品无码无人网站免费视频 | 国产人妻人伦精品59HHH | 永久免费观看黄网站 | 亚洲电影天堂av2017 | 中国护士一级毛片免费版本 | 亚洲AV成人一区二区三区在线看 | 国产色综合天天综合网 | 国产精品久久久久人妻无码网址 | 男Ji大巴进入女人的视频小说 | 操日韩美女 | 久久草这在线观看免费 | 大陆人妻熟妇多毛A片 | 久久国产这里只精品免费 | 酒色网最新网址 | 四虎影视1304t | 黄色毛片在线 | 欧美 亚洲 日韩 中文2024 | 人人澡人人澡人人澡 | 禁止的爱善良的小峓子3线国字 | 2024夜夜干天天天爽 | 免费最新看电影的网站 | 国产精品人妻无码久久久2022 | 九九热精品免费观看 | 欧美影院入口 | 99热这里精品| 精品在线播放视频 | 天天操夜 | 黑人极品videos精品欧美裸 | 越南一级毛片免费 | 当着闺蜜的面被抽插后入小说 | 久久国产经典 | 色噜噜噜色噜噜噜色琪琪 | 国产AV亚洲精品久久久久久小说 | 情色五月天首页 | 免费国产一级特黄久久 | 国产中文字幕免费 | 国产黄毛片 | 欲求不満の人妻松下纱荣子 | 中国一级特黄真人毛片 | 疯狂撞击美妇雪白的大肉臀 | 亚色九九九全国免费视频 | 国产第一页视频 | 国产精品人妻无码99999 | 色涩网站在线观看 | 亚洲高清一区二区三区电影 | 色欲AV色情国产又爽又色 | 中文字幕2区 | 精品一区二区三区免费毛片 | 就要干| 无码中文欧美一区二区三 | 在线观看国产日韩 | 午夜DJ国产精华日本无码 | 久热爱免费精品视频在线播放 | 最近最新中文字幕大全高清版 | 91三级在线 | 欧美性生交活XXXXXDDDD | 亚洲 日韩 欧美 制服 无码 | 久久精品AV一区二区无码 | 动漫精品视频一区二区三区 | 国产精品久久人妻拍拍水牛影视 | 日韩一区二区三区无码A片 日韩一区二区三区射精 | 5278欧美一区二区三区 | 91免费看视频| a级高清免费 | 一人上面2人试看60 一色桃子中文字幕人妻熟女作品 | 亚洲精品福利一区二区在线观看 | 国产偷国产偷亚洲高清午夜 | 成年在线人免费视频视频 | 日本vs欧美一区二区三区 | 久久人人澡人人爽人人爱 | hh99me福利毛片在线看 | 正能量免费网站WWW正能量免费 | tube8动漫naruto教师 | 男女做爰猛烈吃奶摸A片 | 亚洲人成日本在线观看 | 美女视频大全视频a免费九 美女三级毛片 | 用舌头去添高潮无码AV在线观看 | 亚洲中文字幕永久在线 | 无套内谢少妇毛片A片免 | 婷婷亚洲视频 | 无码免费一区二区三区免费播放 | 成人一级网站 | 青青青国产手机在线播放 | 苏南现代化建设示范区规划 | 欧美xxxx做受视频 | 国产精品蜜臂在线观看 | 亚洲AV无码午夜国产精品色软件 | 久久国产毛片 | 国产人妻人伦AV又粗又一长 | 噜噜色图 | 欧美日韩精品 | 在线精品亚洲观看不卡欧 | 丁香花免费高清视频完整版动漫 | 中文字幕网站在线观看 | 古装一级毛片顶级 | 日韩亚射 | 乱肉杂交怀孕系列小说BL | avtt2015天堂网 | 亚洲精品久久久久久久蜜臀老牛 | 日本无码一区二区二区 | 亚洲精品久久久久久偷窥 | 日本无码WWW在线视频观看 | 窝窝午夜看片成人精品 | 国产精品99久久久久久AV小说 | 国产99热在线观看 | 最近日本免费观看高清视频 | 亚洲一区二区三区免费视频 | 欧美与黑人午夜性猛交久久久 | 幼香阁网址 | 成人亚洲区无码偷拍12P | 免费在线观看黄网站 | 国产精品爽黄69天堂A片 | 又黄又猛又爽大片免费 | 波多野结衣视频一区 | 自拍97| 欧美高清老少配性啪啪 | 抖音无限次短视频老司机APP | 免费国产视频 | 在线播放周妍希国产精品 | 免费无码精品黄AV电影 | 成人免费久久精品国产片久久影院 | 一起探恋爱综艺在线观看第七期 | 韩国伦理电影播放伦理电影网站 | 国产麻豆VIDEOXXXX实拍 | 永久免费看A片无码播放器不卡 | 一级做a爱过程免费视频app | 麻豆视频在线观看完整版 | 六月婷婷色 | 九九九国产 | 国产女人综合久久精品视 | 60歳の熟女セックス | 亚洲午夜网 | 久久久国产视频 | 婷婷六月丁香缴 清 | 免费无码又爽又刺激A片软软件 | 色网在线观看 | 亚洲国产天堂 | 最近韩国日本免费高清观看直播 | 免费视频网站在线观看黄 | 欧美性生交XXXXX无码小说 | 无码又爽又刺激视频A片涩涩 | 精品樱空桃一区二区三区 | 欧美精品黄页在线观看视频 | 成人性视频在线三级 | 午夜寂寞院 | 欧美日韩免费播放一区二区 | 阿v网站在线观看 | 国产一级在线播放 | 五月色婷婷中文开心字幕 | 天天草天天干 | 成人污污污WWW网站免费直播 | 国产真实女人一级毛片 | a级黄色片网站 | 日本高清在线观看视频 | 久久91精品国产91久久户 | 97久久精品 | 在线观看中文字幕国产 | 18禁三级黄 | 男人桶爽女人30分钟软件免费 | 国产午夜精品一区二区三区嫩草 | 色老汉电影| 小说区视频区 | 无码一区二区三区曰本A片 无码一区国产欧美在线资源 | 国产人成精品香港三级在 | 亚洲精品久久无码老熟妇 | 国产精品久久综合桃花网 | 国产精品久久毛片 | 92午夜理论 | 日本吻胸捏胸激烈床戏视频 | 被黑人猛烈进出到抽搐动A片 | 日韩无人区码卡二卡3卡4卡介绍 | 免费看国产成人无码A片 | 婷婷综合 在线 | 青草内射中出高潮 | 狼狼鲁色在线视频播放 | 黄色的视频网站在线观看 | 国产人妻无码精品 | 国产精品扒开腿做爽爽爽日本无码 | 久久久久国产精品免费 | 60岁老年熟妇在线无码 | 奇米影视777四色 | 波多野结衣人妻渴望A片 | 91免费永久在线地址 | 热久久亚洲| 操一操干一干 | 欧美干b | 婷婷五月俺也去人妻 | 久久一级黄色片 | 亚洲香蕉影院 | 再深点灬舒服灬太大了添A片小说 | 亚州色区 | 午夜无码伦费影视在线观看果冻 | 国产色精品久久人妻无码看片软件 | vodafone荷兰的app | 男人的天堂在成a | 精品人妻无码一区二区三区婷婷 | 免费看久久 | 三个老外与一女做爰A片 | 成人h免费观看视频 | 一卡二卡卡四卡免费高清欢迎您 | 亚洲精品高潮久久久久久日本 | 成年在线人免费视频视频 | 午夜寂寞剧场 | 日韩 图片小说 | 日本肉肉口番工全彩动漫 | jizzjizz免费| xxnx日本のxxxnx| 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 | 在线久色 | 福利视频导航网 | 日韩日b视频 | 久久97久久99久久综合 | 新快猫KM8KW64 | 久久久久久久岛国免费播放 | 一级毛片免费不卡在线 | 国产AV一区二区三区人妻 | 男人天堂影院WWW94 | 欧美精品网 | 91一区二区午夜免费福利网站 | 国产精品久久久天天影视香蕉 | 国产经典自拍 | 精品久久久久久久久免费影院 | 中文字幕无码家庭乱欲 | 日日干夜夜爱 | 激情五月婷婷色 | 日本-区一区二区三区A片 | 黄色在线资源 | 国产在线播放KKK | A片扒开双腿猛进入免费观看 | 欧美日韩系列 | 亚洲自偷自拍另类图片二区 | 亚洲一区欧洲一区 | 五月丁香合缴情在线看 | 一级毛片免费不卡 | 国产精品久久久久久久久软件 | 99久久产在线 | 久久一日本道色综合久 | 国产肥熟女老太老妇A片 | 黄色网址免费 | 极品夜夜嗨久久精品17c | 五月激情综合婷婷 | 精品人妻少妇一区偷拍视频 | 国产精品中文字幕在线 | 娇妻系列交换27部多P小 | 三男一女伦奷A片 | 成人性视频在线三级 | 家庭教师波多野结衣 | 国产精品沙发午睡系列990531 | 搡老熟女老女人一区二区 | 在线看片v免费观看视频777 | 成人毛片18岁女人毛片免费看 | 麻豆精品一区 | 久久99这里只有精品国产 | 中文字幕永久在线 | 亚洲 欧美 唯美 国产 伦 综合 | 人妻熟女制服师生中文字幕 | 人禽性xxxbbb欧美 | 三级在线观看中文字幕完整版 | 瑟瑟网站免费网站入口 | 日韩国产精品视频 | 18成网站www在线观看 | 在线永久看片免费的视频 | 色婷婷.com| 精品国产a | 亚洲一区二区欧美日韩 | 成人超级碰碰免费视频 | 尤物精品国产第一福利三区 | 四虎影视永久在线观看 | 最好看的免费观看高清电影 | 网友自拍人妻偷拍wwwa7 | 干色网| 欧美精品 日韩 | 王者荣耀最新更新公告 | 亚洲aⅴ在线 | 免费看黄网址 | 超碰97人人做人人爱少妇 | 国产成人亚洲精品91专区手机 | 久久久久久久97 | 亚洲欧美激情图片 | 最新版天堂资源中文官网 | 中文乱码在线中文字幕中文乱码 | 久久综合干 | 91蝌蚪论坛 | 久久久综合香蕉尹人综合网 | 波多野结衣在线视频免费观看 | 国产AV亚洲AV麻豆专区 | 国产精品一区二区在线播放 | 亚洲欧洲日本无在线码天堂 | 亚洲精品久久蜜臀AV色欲 | 国产三级精品三级在线专区1 | 天天综合干 | 国产日韩欧美综合一区二区三区 | 精品亚洲国产成人A片APP | 99热国产这里只有精品9九 | 狠狠色婷婷综合天天久久丁香 | 日日噜噜夜夜狠狠久久丁香婷婷 | 久久国产精品-久久精品 | 日本三级大乳舌吻 | 日本国产亚洲 | 99视频免视看 | 国产永久免费视频 | 草草视频在线播放 |