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

abrangente

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

ejvcg

13 Oct 2025(atualizado 13/10/2025 às 04h21)

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

Temas

Compartilhe

Romance proibido derruba CEO da Nestlé: quem s?o os envolvidos? Veja detalhes da investiga??o'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 jogos de vestir star sueits 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

Xi_shows_Trump_who_holds_the_cards_as_he_sets_up_meeting_with_Kim_and_Putin.txt

The Town 2025: famosos v?o ao 2o dia de festival; FOTOS moda e os explorar entretenimento.

GRáFICOS

nos eixos

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

Switch 2 é lan?ado no Brasil: Nintendo responde principais perguntas sobre novo console enciclopédia e os lazer foco.

Navegue por temas

PS5 Pro será lan?ado em 7 de novembro por US$ 700 A psicologia por trás do fascínio de crian?as com Minecraft 'Juntos' funde terror corporal tenso com análise sensível sobre relacionamentos; g1 já viu Roqueiros chegam cedo para ver ídolos da infancia no 2o dia do The Town IR: mudan?as devem beneficiar quem recebe até R$ 7.350; veja quanto cada faixa salarial ganhará Aos 78 anos, Iggy Pop desafia no??o de idade em dia de bandas influenciadas por ele Bad Religion transforma The Town em aula de punk e substitui Sex Pistols com vigor Conhe?a o fantástico trio de vocalistas do show em que a cantora Maria Bethania celebra 60 anos de carreira PS5 Pro será lan?ado em 7 de novembro por US$ 700 Jo?o Silva promove festa com Travis Scott e Lauryn Hill após The Town
朝鲜美女免费一级毛片 | 翁公又大又粗挺进了我 | 亚洲 欧美 丝袜 制服 在线 | 91最新91精品91蝌蚪 | 日本高清一二三区视频在线 | 电影伦理片 | 国产亚洲精品久久久久婷婷瑜伽 | 安与安寻| 日韩精品久久久肉伦网站 | 亚洲国产区男人本色在线观看 | 久久精品免费 | 乱码一二三乱码又大又粗 | 国产欧美日本在线 | 日韩在线aⅴ免费视频 | 久久精品黄AA片一区二区三区 | 91久久国产口精品久久久久 | 最新777奇米影视四色 | 日韩v欧美| 欧美人成在线观看ccc36 | 夜鲁夜鲁夜鲁视频在线观看 | 天堂网在线观看视频 | 青草网址| 忘忧草在线影院WWW日本社区 | 成人超级碰碰免费视频 | 国产人妻精品无码AV在线浪潮 | 亚洲操操操 | 疯狂伦交1一6 小说 疯狂揉小泬到失禁高潮在线 | 欧美jizz19性欧美 | 成人久久18免费网 | 久久免| 麻豆京东传媒精品2021 | 亚洲 欧洲 日韩 综合在线 | 国产电影一区二区三区爱妃记 | 免费日产乱码卡一卡2卡三卡四 | 国产成人久久精品 | 国产AV精国产传媒 | 婷婷开心色 | 成年女人色毛片免费看 | 99久热re在线精品99 6热视频 | 希岛爱理中文字幕 | 婷婷在线五月 | 我强进了老师身体在线观看 | 免费污视频在线观看 | 久久久大香菇 | 性做久久久久久久免费看 | 丰满女邻居做爰BD在线电影 | 亚洲国产品综合人成综合网站 | 2020好看的中文乱码字幕 | 91久久线看在观草草青青 | 夜夜穞天天穞狠狠穞AV美女按摩 | 成人色网 | 日产国产欧美韩国在线 | 成人色图库| 国产乱码免费卡1卡二卡3卡 | 国产福利一区二区三区在线观看 | 成人a影片在线观看 | 香蕉久久夜色精品国产尤物 | 又黄又爽又猛1000部A片 | 欧美一级片网站 | 一区二区三区视频在线观看 | 蜜桃臀AV高潮无码 | 日本高清免费不卡在线 | 亚洲国产精品无码中文在线 | 国产熟妇精品一区二区 | 亚洲精品国产自在现线最新 | 中文字幕极速在线观看 | 人人爽天天碰狠狠添 | 日产精品一二三四区气温 | 激情六月丁香婷婷四房播 | 黄页视频免费在线观看 | 午夜影院亚洲 | 国产精品久久久久久久人热 | 品色最新网址 | 国产一卡2卡3卡4卡无卡国色 | 青草视频网站在线观看 | 国产精品国产三级在线专区 | 日本毛片高清免费视频 | 色视频在线免费 | 欧美色图片区 | 最近中文字幕完整视频下载 | 六月丁香综合在线视频 | 国产AV99激情久久无码天堂 | 黄色一级片在线免费观看 | a级片大全 | 让杜雅尔丹 | 国产在线aaa片一区二区99 | 好爽插我添我BB | 麻豆成人AV久久无码精品 | 国内国精产品一二三区传媒 | 777婷婷天堂综合区色吧 | 宅男色影视亚洲人在线 | 午夜欧美 | 五月网址 | 国产免费av片在线观看 | 亚洲A片无码一区二区三区在线 | 最近新中文字幕大全高清 | 99久久免费精品国产免费高清 | 中文字幕无线手机在线 | 四虎国产一区二区三区 | 欧美成人无码视频午夜福利 | 毛片站| 国产91精品新入口 | goldenear| 国产精品中文字幕在线观看 | 最新四虎影在线在永久观看 | 亚洲午夜久久久精品影院 | 成人在线高清不卡免费视频 | 91在线影院| 亚洲无限码 | 视频在线观看一区二区三区 | 亚洲第一页在线播放 | 性猛交xxxxx按摩中国 | 亚洲精品一区二区三区麻豆 | 成人自偷拍一区二区 | hj2ea海角| 欧美大陆日韩一区二区三区 | 华人91视频| 日本高清视频一区二区 | 免费国产黄网站在线观看可以下载 | 桃子视频在线观看免费完整版 | 影视先锋av资源站男人 | 刺激一区仑乱 | 欧美群交在线播放1 | 久久这里的只有是精品23 | 日韩免费一区二区 | 欧美乱插 | 有一婷婷色 | 国产免费无码又爽又刺激A片小说 | 国产精品系列在线观看 | A片A三女人久久7777 | 国产精品色情国产三级在线观 | 色老头成人免费综合视频 | 国产福利美女福利视频免费看 | 日本无码色哟哟婷婷最新网站 | 国产亚洲精品久久久久久国 | 精品高潮呻吟99AV无码 | 无码日韩精品一区二区免费 | 免费在线黄色网 | 国精产品99永久中国有限公司 | 亚洲视频91 | 高清无码v视频日本www | 人人看人人干 | 欧美视频第一区 | 2022国产精品自在线拍国产 | 45分钟级毛片免费视频 | 国产精品精品国产 | 日本国产美国日韩欧美mv | 中文字幕在线网址 | 国产一区二区三区乱码在线观看 | 国产免费黄色 | 在线观看黄的网站 | 国产 日韩 中文字幕 制服 | 国产三级久久久精品三级 | 99久久免费精品国产免费高清 | 免费观看成人毛片A片2008 | 老司机午夜影院 | 国产精品美女久久久久AV超清 | 性一交一乱一交A片久 | 婷婷熟女在线视频 | 97久久久久| 日本少妇做爰全过 | 高清色情www日本com | 久久人人爽爽人人爽AA片 | 最新资源资源影音先锋 | 国产91观看 | 中出欧美| 国产h片在线观看 | 无码中文字幕在线播放2 | 欧美人与性囗牲恔配 | 久久免费看视频 | 国产欧美综合在线观看第七页 | 中文有码视频在线播放免费 | 天天躁人人躁人人躁狂躁 | 日本少妇裸体做爰高潮片 | 欧美日本韩国一二区视频 | 狼人综合色 | 久久免费精品 | 国产又色又爽又黄的视频免费看 | 成人免费无码A片免费看软件 | 高压监狱在线观看完整免费法剧 | 九九九九九 | 成人A片动漫无码免费播放 成人A片免费看男人社区 | 国产国语一级a毛片高清视频 | 日本中文字幕免费 | 工口里番全彩全彩无遮挡 | 国产在线观看不卡免费高清 | 囯产精品流白浆高潮免费A片 | 亚洲AV综合色情区一区 | 国产一三区A片在线播放 | 秋霞影院午夜伦A片欧美 | 图片区 偷拍区 小说区 视频 | 亚洲A片无码一区二区蜜桃 亚洲A片无码一区二区蜜桃久久 | 精品国产乱码久久久久久乱码 | 2024夜夜干天天天爽 | 亚洲成人黄色在线 | 思思久久好好热精品国产 | 青青热久免费精品视频在app | 久久精品亚洲综合一品 | 波多野结衣xxxxx在线播放 | 影音先锋av网站你懂得 | 欧美一级日韩一级亚洲一级 | 天天摸夜夜添夜夜添A片小说 | 在线观看免费视频 | 国产毛片女人高潮叫声 | 久热精品视频在线观看99小说 | 日日摸天天添天天添无码蜜臀 | 日韩黄色视屏 | 亚洲一区二区三区四区五区黄 | 久久精品无码人妻无码AV蜜臀 | AV天堂午夜精品一区 | 日本特黄特色视频 | 性欧美FREE少妇XXX | 她的两片蚌肉张开白浆直流 | A片太大太长太深好爽A片视频 | 快穿被各种男主强好爽H | 97国产精华最好 | 玉蒲团3之初入桃源洞 | 欧美日韩另类在线 | 久久久久国产成人精品 | 欧美成人无码A区在线观看免费 | 视频列表--国产 | 奇米网四色| 成熟妇女A片高潮免费看 | 国产中文字字幕乱码无限 | 亚洲A片一区日韩精品无码 亚洲H成年动漫在线观看不卡 | 999毛片 | 亚洲图片偷拍图自拍97 | 亚洲v日韩v欧美在线观看 | 国产午夜爽爽窝窝在线观看 | 中文字幕在线免费视频 | 国产女人毛多水多A片视频 国产欧美精品一区二区三区-老狼 | 日本女人毛茸茸 | 欧美日韩不卡中文字幕在线 | 毛片网站在线观看 | 亚洲国产tv | 老司机午夜精品 | 亚洲日韩国产精品乱-久 | BL文库好大粗黑强强肉NP | 果冻传媒网站免费入口破解版 | 嫡女在闺房里被强高H | 欧美日韩视频一区二区在线观看 | 私人影院无在线码免费 | 免费无码又爽又刺激高潮视频日本 | 中文字幕无线观看高清 | 唇齿之间 | 视频二区欧美 | 欧美videos另类极品 | 日本高清在线看片免费视频 | 男女后式激烈GIF动态图 | 久久精品国产一区二区三区四区 | 波多野结衣一区二区 三区 波多野结衣一区二区 | 波多野办公室激情A片 | 人妻熟女 视频二区 视频一区 | 亚洲色吧 | 久草视频免费看 | 夜夜操夜夜爱 | 噜妇插内射精品 | 久久精品国产精品亚洲蜜月 | 亚洲色偷偷男人的天堂 | 国产成人手机高清在线观看网站 | 秋霞久久久久久一区二区 | 欧美牲| 亚洲男人的天堂成人 | 97色婷婷| 亚洲日本在线免费观看 | 日产精品卡二卡三卡四卡乱码视频 | 男女一边摸一边做爽爽的免费文字 | A片试看120分钟做受视频在线 | 久久这里有精品视频 | 激情A片久久久久久播放 | 国产无遮挡A片无码免费软件 | www.色中色| 三妻四妾免费观看 | 打屁股gay | 最近中文字幕高清免费大全8 | 日本高清一卡二卡三卡四卡免费 | 羞羞汗汗YY歪歪漫画AV漫画 | 丁香婷婷九月 | 99精品国产免费久久国语 | 纯肉合集(高H) | 五月天婷婷在线观看视频 | 久久国产精品视频 | 亚瑟视频在线观看 | 日本视频免费在线观看 | 欧美日韩高清在线观看 | 激情五月天小说 | 多人交换做爰波多野结衣图片 | 日韩亚洲欧美一区二区三区 | 免费看国产精品麻豆 | 少妇刮伦人妇A片1级 | 久久国产精品99国产精 | a一级黄色片 | 九一视频在线观看 | 亚洲伊人情人综合网站 | 成人精品视频 | 精品人妻无码一区二区三区淑枝 | 日本少妇A片又爽又黄 | 亚洲国产中文视频二区 | 波多野吉衣在线播放 | 欧美高清一区二区 | 揄拍自拍 | 中文字幕在线观看你懂的 | 狠狠干夜夜 | 亚洲欧洲中文日韩久久AV乱码 | 色婷婷色综合缴情网站 | 美欧毛片 | 免费高清曰韩仑理 | 500第一精品福利导航 | 国产亚洲女人久久久久久 | 欧美亚洲尤物久久精品 | 久久国产偷 | freefron性中国 | 找国产毛片看 | 日本免费一区二区在线观看 | 成人片黄网站A片免费 | 亚洲伊人久久在 | 91精品一区二区三区在线观看 | 99久久精品久久久 | 乱爱妇乱子伦精品 | 囯精品人妻无码一区二区三区99 | 亚洲欧洲一区二区三区在线 | 成人片在线观看免费人A片 成人区色情综合小说 | 聚色网站| 国产又色又爽又黄的视频免费观看 | 我色综合 | 美美哒免费高清影院在线观看直播 | www在线小视频免费 XL上司带翻译不打马赛 | 日本精品99 | 成全在线观看免费观看大全 | 警察锅哥40集电视剧免费完整版 | 中国黄色在线观看 | 观月雏乃 bt| 美妇岳妇的肉泬目录 | 97色伦图片97综合影院 | 欧美激情一区二区三区中文字幕 | 日韩毛片高清免费 | 高清性色生活片免费播放网 | 成年免费看片在线观看 | 极品福利在线 | 青草社 | 成免费播放观看在线视频 | 久久AV亚洲精品一区无码 | 在线看伦理电影 | 小骚货 爽不爽 | 国产日产国无高清码2020 | 天堂中文在线最新版地址 | 精品人妻一区二区A片 | 偷拍激情视频一区二区三区 | 国产又色又爽又高潮免费视频麻豆 | 午夜视频网站在线观看 | 亚洲伦理久久 | wwwav视频| 亚洲黄色一区二区 | 色情内射少妇兽交 | 久久国产乱子精品免费女 | 尤物一区| 秋霞网在线伦理影片 | 五月天 亚洲| 人妻被粗大猛进猛出国产 | 国产成人高清亚洲一区app | 欧美日韩亚洲综合另类ac | 黑人狂躁日本妞无码A片 | 麻豆国产精品色欲AV亚洲三区 | 日韩精品观看 | 色网站在线观看 | 我要爱久久影视 | v片在线免费观看 | 国产亚洲国产bv网站在线 | 福利免费观看午夜体检区 | 欧洲最新一卡二卡三卡四卡 | 四个人弄我一个要坏掉的 | 窝窝视频成人影院午夜在线 | 91女神精品系列在线观看66 | 久久精品亚洲欧美日韩久久 | 亚韩精品 | 日本高清中文字幕 | 99久久综合精品国产 | 免费黄色在线看 | 伊人yinren6综合网色狠狠 | 69精品人人人人 | 欧美一级录像 | 国产亚洲情侣久久精品 | 国产免费自拍 | 狠狠色丁香婷婷综合尤物 | 国产精品边做奶水狂喷小说 | 99国模沟沟茂密的黑森林 | 精品国产91乱码一区二区三区 | 国精品人妻无码一区二区三区三 | 色老板亚洲视频在线观 | 精品成人无码A片免费软件 精品AV综合一区二区三区 | 国产91网址 | 可以免费在线看黄的网站 | 制服 丝袜 亚洲 中文 综合 | 午夜久久网 | 老狼影院成年女人大片 | 色婷婷亚洲 | 欧美网址在线观看 | 波多野结衣免费在线播放 | 亚洲综合色在线视频久 | 中国毛片在线观看 | 日韩精品www| 北条麻妃 中文字幕 | 国产最新免费高清在线视频 | 免费jizz在线播放视频 | 国产精品永久免费视频观看 | 亚洲免费视频日本一区二区 | 韩国理伦片一区二区三区在线播放 | 国产手机在线播放 | 在线黄网 | 精品欧美日韩一区二区三区 | 国产欧美一区二区三区免费 | 一级国产视频 | 中字幕久久久人妻熟女 | 亚洲成人原创 | 国产露脸无码A区久久蘑菇 国产乱对白刺激视频 | 无码毛片A片-区二区三区 | 国产一级特黄高清免费大片dvd | 久久久久久亚洲精品影院 | 丝瓜视频未满十八严禁 | 快穿嗯啊粗大倒刺 | chinese乱子伦xxxx国语对白 | 在线播放91撕破艺校舞蹈系 | 少妇粉嫩小泬白浆流出 | 伦理片在线线249 | 最近中文字幕在线看免费完整版 | 哪里有毛片 | 中日韩一卡二卡三卡四卡在线观看 | 五月婷婷六月爱 | 免费网站观看 | 国精品人妻无码一区二区三区软件 | 色播开心网 | 亚洲国产高清在线观看视频 | 三级毛片在线看 | 强壮公次次弄得我高潮A片视频 | 精品久久一区二区 | 网站三级 | 美女视频永久黄网站免费观看 | 免费国产黄网站在线观看可以下载 | 丝瓜APP下载安装无限绿巨人 | 无套内谢孕妇毛片免费看 | 500第一精品福利导航 | 国产人久久人人人人爽 | 国产极品JK白丝喷白浆羞羞 | 欲香欲色天天天综合和网 | 成人无码WWW在线看免费 | 66亚洲一卡2卡新区成片发布 | 久久www免费人成高清 | 四虎永久在线精品免费A | 日本乱码一卡二卡三卡永久 | 中文字字幕在线乱码 | 欧美精品亚洲精品日韩专区 | 亚洲色熟偷拍视频在线 | 天天做天天干 | 久久人妻国产精品31 | 国产精品69人妻无码久久久 | 污视频app破解下载 污视频app网址丝瓜视频 | 日本工口里番h无遮拦 | 九九免费久久这里有精品23 | 亚洲伊人久久精品 | 婷婷五月在线视频 | 美女脱18以下禁止看免费 | 国产麻豆91网在线看 | 在线乱码一卡二卡麻豆 | 在线视频 日本 | 国产成人精品一区二区三区视频 | 日本护士视频xxxxxwww | 免费的成人性视频网站 | 日本一区二区三区欧美在线观看 | 国产亚洲精品久久综合阿香蕉 | 久久发布国产伦子伦精品 | 狠狠综合久久综合鬼色 | 在线观看国产精选免费 | 最好韩国日本免费高清 | 又硬又粗进去好爽A片中字 又长又大又粗又硬3p免费视频 | 美国色综合 | 91女神爱丝袜vivian在线观看 | 午夜伊人 | 亚洲综合精品香蕉久久网97 | 成年人黄色片网站 | 2020国自产拍精品网站不卡 | 国产乱对白刺激视频 | 欧美精品久久久久久无码人妻 | 乱熟女高潮一区二区在线 | 亚洲精品国偷拍自产在线观看蜜桃 | 水蜜桃视频在线播放下载 | 99精品视频观看 | 天天撸天天射 | 四色777| 美女张开腿让男生桶爽免费 | 国模少妇一区二区三区A片 国内精品A片XXX久久久 | 色哟哟视频在线观看免费播放 | 男同免费视频大全69 | 精品国产乱码久久久久久人妻 | 国色天香综合国产一区 | 亚洲日本无码精品无码白石麻衣 | 青娱乐激情| 狠狠爱亚洲五月婷婷av | 婷婷丁香五月啪啪综合 | 边做边爱免费完整版视频播放 | 久久99国产综合精品AV蜜桃 | 国产老熟女伦老熟妇视频 | 日本免费观看日本高清视频 | 亚洲精品久久久久无码AV | 日本三级在线观看511 | 二级黄绝大片中国免费视频 | 玖玖五月| 成人做爰视频WWW网站 | 性做爰A片免费看网站 | 99热影视| 激情五月 色播五月 | 高清一区二区三区 | 亲胸吻胸添奶头GIF动态图免费 | 高清国产精品久久 | 上课时勃起了女同学帮我口 | 久久人人槡人妻人人玩夜色AV | 99re热这里有精品首页视频 | 最近中文字幕完整版2019免费 | 我和闺蜜在公车被cao污文 | 永久域名18勿进永久域名3XCC | 国产亚洲精品久久久性色情软件 | 国产亚洲欧洲日韩在线观看 | 国产理论在线观看 | 国产久热在线观看视频 | 国产精品久久福利新婚之夜 | 日韩免费高清一级毛片 | 欧美日韩中文在线 | 手机在线看黄色 | 免费网站在线观看人数在哪里看的 | 婷婷在线免费观看 | 五月色晴天 | 青草影院内射中出高潮 | 国产精品无码久久久久 | 天天干夜夜艹 | 国产毛片在线看 | 成人午夜视频一区二区国语 | 国产精品一区二区亚瑟不卡 | 国内精品999 | 六月丁香婷婷网 | 最好韩国日本免费高清 | 国产精品高潮呻吟AV久久小说 | 夜夜躁狠狠躁日日躁视频 | 激情影院内射美女 | 国偷自产一区二区免费视频 | 露胸和屁股衣服的衣服 | 最近中文字幕高清中文字幕网1 | 当着闺蜜的面被抽插后入小说 | 成人在线免费网站 | 成人人观看的免费毛片 | 真人做爰片免费观看播放 | 插老师进去了好大好舒服小说 | 午夜福利不卡在线视频 | 麻婆豆传媒一区二区三区 | 亚洲国产精品成人综合久久久 | 99国产午夜精品一区二区 | 国产美女啪啪 | 亚洲国产精品无码中文在线 | 国产午夜影视大全免费观看 | 国色天香精品一卡2卡3卡4公司 | 五月婷婷六月丁香 | 69精品在线观看 | 国产精品久久人妻互换毛片 | 日本欧美一区二区三区不卡视频 | 三级国产在线 | 四房播播地址 | 国产真人毛片一级视频 | 免费日产乱码卡一卡2卡三卡四 | 日韩在线视频精品 | 国产福利在线观看免费第一福利 | 精品视频在线免费观看 | 人人看人人艹 | 国产亚洲熟妇在线视频 | 扣扣影视在线 | 久久精品免费电影 | 成人777 | 九九精品免费视频 | 亚州日本乱码一区二区三区 | 精品国产乱码久久久久久软件大全 | 17C丨国产丨精品入口永久地址 | 欧美日韩在线看 | 自拍 亚洲 欧美 卡通 另类 | 日本中文字幕一区 | 性夜夜春夜夜爽A片欧美 | 俺去也最新网站 | 国产亚洲精品久久久久婷婷图片 | 老少交玩TUBE | 四虎影院211风情影院 | 色综合999| 国产成人精品福利网站在线观看 | 他揉捏她两乳不停呻吟A片 她也色在线视频站 | 国产精品人妻一区二区三区四 | 亚洲 综合 校园 欧美 制服 | 免费无码无遮挡永久色情聊天下载 | 老司机综合网 | 色99久久久久高潮综合影院 | 中文字幕在线综合 | 糙汉猛H1v1她想被C | 成人网站国产在线视频内射视频 | 亚洲精品久久黄大片 | 春宵福利网站在线观看 | 亚洲色无码A片一区二区潘甜甜 | 国产精品不卡在线观看 | 韩国三级日本三级香港三级黄 | 婷婷激情综合 | 欧美一区二区三区在线视频 | 看全免费的一级毛片 | 日本少妇做爰片视频 | 国产精品高潮呻吟AV久久小说 | 亚洲国产精品一区二区动图 | 国产乱码精品一品二品 | 久久最新地址获取 | 麻豆短视频传媒网站 | 2022国产男人亚洲欧美天堂 | 51啪啪 | 超91精品手机国产在线 | 国产高清自偷自在线观看 | 五月欧美激激激综合网色播 | 亚洲一线二线三线品牌精华液久久久 | 中文字幕免费在线播放 | 国产一二三| 师尊禁脔被迫含精入睡H | 亚洲最大色情网55101 | 瑟瑟视频在线观看 | 国内久久久久影院精品 | 在线看电影 | 一区二区三区A片无码视频不卡 | 欧美性色xo影院在线观看 | 无码做爰视频WWW网站建设 | 日本无码成人片在线观看波多 | 国产九九九九九九九A片 | 国产精品久久久久久久hd | 99黄色| 国产嫖妓一区二区三区无码 | 中央工作组赴宜春督导锂矿开采 | 日本亚洲高清 | 青青久在线视频免费视频 | 精品一区二区日本高清 | 国产18禁黄网站免费观看 | 日本在线观看不卡 | 久久精品国产99国产精偷 | 欧美高清日本三级人妇 | 成人深夜福利视频 | 把腿张开JI巴CAO死你H教室 | 波多野结衣手机视频一区 | 最新黄色yy| 亚洲va欧美va国产综合下载 | 免费播放一卡二卡三卡 | 要看影院 | 免费无限次永久看黄的APP | 激情文学小说区另类小说同性 | heyzo0496波多野结衣 | 乳色吐息在线观看全集免费观看 | 久久国产这里只精品免费 | 别插我B嗯啊视频免费 | www天堂在线 | 黄在线观看网站 | 伦理片免费秋霞e | 亚洲极美女高清视频 | 亚洲免费国产在线日韩 | 美国三级网站 | 国产麻豆精品人妻无码A片 国产麻豆精品久久一二三 国产伦精品一区二区三区在线观看 | 黄色免费网站视频 | 国产成人91高清精品免费 | 久久99麻豆婷婷AV1区2区 | 六月丁香七月婷婷 | 欧美一级第一免费高清 | 免费人成视频 | 久久精品伊人波多野结 | 国产精一品亚洲二区在线播放 | 欧洲午夜福利视频在线观看 | 黑人大黑机巴做爰 | 99视频在线精品免费观看18 | jvid精品视频极品美女 | H嗯啊高潮抽搐A片视频欧美 | 亚洲欧美日韩在线观看一区二区三区 | 国产一浮力影院 | 日本人妻仑乱少妇A级毛片潘金莲 | www.youjizz.日本| 九色综合亚洲色综合网 | 久久99国产精品久久99小说 | 99国产午夜精品一区二区 | 狂野欧美激情性XXXX在线观看 | 1000部做羞羞事禁片免费视频网站 | 亚洲精品久久无码AV片WWW | 免费国产又色又爽又黄的网站 | 最新网站网址永久发布 | A片好大好紧好爽视频免费 A片女女女女女女BBBB | 色AV亚洲AV永久无码精品软件 | 福利500精品导航大全 | 色情无码永久免费网站APP | 韩国日本三级在线 | 综合另类| 欧美剧场成人精品午夜 | 国产69精品久久久久乱码免费 | 2020欧美极品hd18 | 欧美日韩国产一区二区三区不卡 | 人妻日本无中文字幕无码 | 欧美三级在线视频 | 99re视频在线观看 | 黑巨茎大战俄罗斯白人美女 | 欧美日韩亚洲一区二区三区 | 欧美黑人添添高潮A片WWW | 无码日韩人妻精品久久蜜桃免费 | jizzjizz在线观看 | 久久久国产精品免费A片蜜臀 | 两根巨龙在她腿间同时进出 | 成都影院手机在线观看 | 丰满人妻无码AV系列 | 国产福利一区二区三区在线观看 | 女人高潮视频 | 亚洲暴爽AV天天爽日日碰 | 欧美日韩激情一区二区三区 | 中文字幕久久精品波多野结 | 中文字幕 国产 | 神马dy888午夜伦理 | 日韩欧美中文字幕在线播放 | 乱子轮视频在线看 | 国产无遮挡成人免费视频网站 | 吉泽明步 超m自缚痴女 | 在线观看免费大片 | 日产日韩亚洲欧美综合搜索 | 四虎永久免费地址入口 | 免费又粗又黄又爽又免费A片 | 国产偷抇久久精品A片69 | 天天操夜夜操天天操 | 香港三级日本三级韩国三级韩 | 裸体BBBBBBBBB | 最新亚洲一区二区三区四区 | A片人人澡C片人人人妻付费 | 古装一级毛片免费观看 | 中文字字幕在线乱码 | 99在线在线视频免费视频观看 | 特级aa 毛片免费观看 | 亚洲午夜在线播放 | 真实国产乱子伦对白视频37P | 欧洲亚洲精品A片久久99动漫 | 国产在线视频精品视频 | 91精品国产一区 | 中文无码欧美人妻日韩精品 | 免费中文字幕囯产在线网站 | 久久国产视频网站 | 久草精品在线 | 亚洲在线中文无码首页 | 草久网 | 一个人在线观看的免费视频 | 亚洲精品无码成人A片色欲 亚洲精品无码成人A片在 | 久久精品视在线观看2 | 99久久精品免费国产一区二区三区 | 欧洲乱码一卡2卡三卡4卡高清 | 久久是热频这里只精品4 | 日本公妇里乱片A片免费 | 欧美亚洲国产精品久久 | 大陆毛片 | 99精品免费在线 | 麻豆综合网 | 手机青青在线观看国产 | 一级毛片一级黄片 | 国产精品一区二区免费 | 欧美女人的阴户毛茸茸的 | 在线观看视频你懂的 | 青青草在9线观看 | 飞空精品影院首页 | 亚洲国产成人久久精品动漫 | 伊人久久久久久久久久 | 五月激激激综合网色播胖胖 | 国产又粗又猛又爽的视频A片 | 88av免费观看| 无码高潮少妇毛多水多水免费 | 天天爽夜夜操 | 国内乱码一线二线三线 | 亚洲精品国产A久久久久久 亚洲精品第一区二区APP | 国产精品一区在线免费观看 | 中文字幕在线不卡日本v二区 | 欧美激情bd高清在线播放 | 天天干 夜夜操 | 免费国产成人高清在线观看网站 | 日本v在线 | 999视频精品全部免费观看 | 日本无码专区亚洲麻豆 | 日本三级带日本三级带黄国产 | www.四虎com| 99热在线免费播放 | 国产人妻人伦精品熟女 | 成人午夜亚洲影视在线观看 | 久久九九免费视频 | 男男野战爆了我的菊BL | 国产精品久久久久久久免费A片 | 久久99麻豆婷婷AV1区2区 | 无限免费动漫看片的视频 | 一区二区三区不卡在线观看 | 亚洲欧美自拍制服另类图区 | 久久久久久久久久久久久久久久久久久久 | 日本三级日产三级国产三级 | 亚洲免费综合色视频 | 欧美xxxx狂喷水喷水 | 国产JJZZJJZZ视频免费看 | 薰衣草影院 | 夜夜操网 | 毛片网站在线观看 | 强壮公让我夜夜高潮A片视频 |