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

lazer

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

athczpuq

12 Oct 2025(atualizado 12/10/2025 às 02h03)

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

Temas

Compartilhe

What_did_Angela_Rayner_do_Deputy_PMs_tax_controversy_explained.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 buscar o resultado da lotofácilits 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

'We want newness, we want transformation' US fashion star Christopher John Rogers on fighting against 'quiet luxury'.txt

Watch_Protesters_pack_Tel_Aviv_square_to_demand_Gaza_ceasefire.txt lazer e os entretenimento lazer.

GRáFICOS

nos eixos

'We want newness, we want transformation' US fashion star Christopher John Rogers on fighting against 'quiet luxury'.txt

Watch_Zelenskys_fabulous_suit_and_other_moments_from_Trump_meeting.txt abrangente e os ponto quente enciclopédia.

Navegue por temas

We_built_a_nasty_game_to_test_AIs_ability_to_apologise.txt What_has_been_driving_the_rise_in_disability_benefit_claims.txt Watch_Tiny_dog_chases_bear_out_of_its_Vancouver_home.txt Websérie discute consolida??o de um varejo híbrido e tecnológico Juntos no Próximo Nível Valor Econ?mico.txt Where_people_were_sent_to_disappear.txt We_built_a_nasty_game_to_test_AIs_ability_to_apologise.txt Watch dramatic moment monkey family defends baby from python.txt What_to_watch_as_Trump_and_Putin_meet_in_Alaska.txt What_did_we_get_wrong_about_Sinad_OConnor.txt What_to_watch_as_Trump_and_Putin_meet_in_Alaska.txt
在线观看免费黄色小视频 | 伊人综合在线 | 亚洲高清一区二区三区电影 | 亚洲乱妇老熟女爽到高潮的片 | 欧美操日韩 | 北女网 | 青草影院内射中出高潮 | 日本免费一区二区三区a区 日本免费一区二区久久人人澡 | 四虎永久免费地址入口 | 免费看大黄高清网站视频在线 | 操老女人逼| 好爽好紧好大的免费视频国产 | 国产成人爱片免费观看视频 | 婷婷综合久久狠狠色成人网 | 星野亚希 qvod| 亚洲欧美偷拍视频一区 | 樱花草社区WWW视频在线观看高清 | 在线看黄色的网站 | 国产互换人妻好紧HD无码 | 在线成人国产 | 午夜精品国产 | 色视频网站2 | 性久久久久久久久久 | 成人午夜又粗又硬又长 | 最近中文字幕完整视频高清1 | 99视频在线观看免费视频 | 五月天婷婷在在线视频 | 日韩视频中文字幕 | 高清欧美性猛交xxxx黑人猛交 | 国产美女被爽到高潮激情免费A片 | 18禁无遮挡羞羞污污污污网站 | 色婷婷我要去我去也 | caoporn免费在线视频 | 爱久久AV一区二区三区色欲 | 午夜影院亚洲 | 2024国产精品视频一区 | 欧美三级在线完整版免费 | 高潮无遮挡成人A片 | 国产一级网站 | 久久草资源费视频在线观看 | 波多野结衣99 | 久久免费视频7 | 免费视频大片在线观看 | 国精产品一区一区三区MBA下载 | 欧美影视一区二区三区 | 久久精品视频15人人爱在线直播 | 总攻高H巨肉各种PLAY快穿 | 天堂在线91 | 教官脔到她哭H粗话H好爽视频 | 日韩国产毛片 | 国产又色又爽又高潮免费视频麻豆 | 国产福利2021最新在线观看 | 在线观看国产亚洲视频免费 | 最新激情网站 | 92国产精品午夜免费福利视频 | 深夜你懂的在线网址入口 | 上司揉捏人妻丰满双乳电影 | 又www又黄又爽啪啪网站 | 黃片小视频免费 | 中文字幕精品久久 | 欧美性猛交A片索多玛120天 | 老色网站 | 91福利院 | 欧美成人精品免费播放 | 强壮公弄得我次次高潮A片强视频 | 菠萝蜜BLM新区口 | 999国产精华是正规产品吗 | 亚洲一区二区三区秋霞秋理 | 涩情图片网 | 日本在线你懂的 | 特级毛卡片现场直播 | 午夜精品福利在线导航小视频 | 日本护士激情波多野结衣 | 国产成人免费高清视频 | 精品久久久久成人码免费动漫 | 中文字AV字幕在线观看 | 天天爱天天舔 | 久久6免费视频 | 天天天天做夜夜夜做 | 久久久无码精品亚洲欧美 | 17C丨国产丨精品入口永久地址 | 四房色播网址 | 欧美久久久无码精品亚洲日韩小说 | 亚洲一区二区三区四区五区黄 | 日本中文字幕在线播放 | 久久综合九色综合97小说 | 国产亚洲精品久久久久久鸭绿欲 | 最近韩国动漫HD免费观看 | 一区二区不卡视频 | 免费播放一卡二卡三卡 | 在线亚洲欧美 | 亚洲毛片无码专区亚洲A片 亚洲蜜桃AV色情精品成人 | 久久一 | 午夜精品久视频在线观看 | 99久久无码一区人妻A黑国产馆 | 天堂8资源在线官网资源 | 于子涵18分不戴套视频 | 亚洲AV国产精品无码A片APP | 亚洲精品午夜视频 | 亚洲色无码A片一区二区情欲 | 亚洲国产高清视频在线观看 | 欧美中出在线 | 日本bbw激情bbw | 求免费黄色网址 | 少妇真人直播免费视频 | 在线看va | WWW国产精品内射老熟女 | 日本aa网站 | 亚洲精品一区二区另类图片 | 鬼父 qvod| 久久久久久久国产免费看 | 蝌蚪自拍自窝 | 色五丁香 | 办公室制服丝祙在线播放 | 久久综合亚洲鲁鲁五月天欧美 | 一区二区三区毛AAAA片特级 | 天天宗合网 | 狠狠躁天天躁小说 | 午夜精品人妻无码一区二区三区 | 激情综合五月 | 成人精品国产亚洲AV久久 | 美国毛片亚洲社区在线观看 | 国产伦精品一区二区免费 | 亚洲巨乳日本无码一二三区 | 在线国产三级 | 久艹在线视频 | 国产又色又爽又黄的A片 | 久久综合桃花网 | 九九热视频免费 | 国产午夜男女爽爽爽爽爽 | 樱花草在线社区www日本视频 | 色欲AV久久综合人妻无码 | 影音先锋av999资源站 | 最近中文字幕在线视频1 | 日韩欧美高清DVD碟片 | 国产成人精品久久免费动漫 | 2022国产精品网站在线播放 | 国产精品久久人妻互换 | 日日噜噜夜夜狠视频免费 | 中文字幕亚洲综久久2021 | 99热久久久无码国产精品性麻豆 | 国产精品毛片在线更新 | 国内久久久久久久久久 | 亚洲伊人久久综合影院2024 | 久久无码人妻国产一区二区 | 最近韩国中文字幕更新 | 中文字字幕在线中文乱码 | 日本在线视频免费观看 | 黄色一级性生活视频 | 无码人妻国产精品久久 | 免费做A爰片久久毛片A片下载 | 国产黄色片网站 | 日本公妇里乱片A片在线播放保姆 | 国产精口品美女乱子伦高潮 | 四房婷婷在线视频播放 | 快穿女主有名器的H纯肉黄暴拉文 | 久久国产精品久久精 | 国产熟睡乱子伦视频在线观看 | 最近中文字幕2019免费BD | 欧洲 亚洲 国产图片综合 | 亚洲v欧美v日韩v国产v | 亚洲区中文字幕 | 亚洲精品图片区小说区 | 最近在线视频观看2018免费 | 成电影人免费网站 | 久久综合九色综合 | 日韩精美视频 | 中文毛片无遮挡高潮免费 | 波多野结衣日韩 | 一女被两男吃奶添下A片免费网站 | 熟女毛茸茸 | 中文网丁香综合网 | 4虎影院最新地址2024 | 久草在线新免久费观看视频 | 色久久好 | 国产一有一级毛片视频 | 丁香六月| 蜜臀AV久久国产午夜福利软件 | 久久国产精品免费视频 | 黄色网址在线视频 | 91制片厂果冻传媒有限公司 | 一二三四中文字幕 | 在线观看 有码 制服 中文 | 久九色 | 四房播播成人社区 | 韩国中文全部三级伦在线观看中文 | 亚洲综合网国产福利精品一区 | 一级毛片免费在线 | 黄色网址视频 | 日本中文字幕在线观看 | 亚洲精品中文字幕制 | 成年男人午夜片免费观看 | 99视频免视看 | 国产SUV精品一区二AV18款 | 女人被添全过程A片试看 | 精品国产成人国产在线观看 | 欧美日韩亚洲中字二区 | 国产黄色免费在线观看 | 天天干天天操天天做 | 波多野结衣三级视频 | 国产中文在线观看 | 欧美日韩在线视频不卡一区二区三区 | chinesefree国产中文| 五月天婷婷免费视频观看 | 国偷自产一区二区免费视频 | 午夜尤物禁止18点击进入 | 好爽毛片一区二区三区色欲 | 污污在线网站 | 99热久久是有精品首页 | 亚洲 国产专区 校园 欧美 | 久久久久夜色精品波多野结衣 | 久久久97丨国产人妻熟女 | 麻豆一二三区AV传媒 | 销魂美女一区二区 | 明星xxxx hd videos | 伊人久久大香线蕉免费视频 | 日本黄 色 成 年 人免费观看 | 插插射啊爱视频日A级 | 女人下边被添全过程A片图片 | 免费一级片视频 | 99这里只有精品6 | 超级H荡的辣文小说 | 黄色色网 | 亚洲国产欧美在线观看 | 真人性做爰88式免费视频 | 久久久精品国产免费观看同学 | 国产97在线观看 | 日本一区二区三区免费更新不卡 | 羞羞麻豆国产精品1区2区3区 | 久久这里的只有是精品23 | 男人吃奶捏奶很爽视频免费 | 国产精品伦一区二区三级视频 | 国产护士一级毛片高清 | 国产XXXXX精品AV青椒 | 中文字幕 在线 欧美 日韩 制服 | 日韩成人精品日本亚洲 | 日韩 图片小说 | 精品交小说合集500篇 | 最近最新中文字幕MV在线1 | 国产精品无码AV在线观小说 | 欧美jizz19性欧美 | 精品亚洲国产成人A片在线播放 | 久久精品人人做人人爽97 | A片女女女女女女BBBB | 公的粗大挺进了我的密道 | 成人午夜又粗又硬又长 | 久久只这里是精品66 | 国产精品1区在线播放 | 欧美xxxx做受性欧美88 | 欧美日本国产VA高清CABAL | 97香蕉久久夜色精品国产 | 宝贝乖把腿分大一点h欧阳凝小说 | 国产精品人妻无码久久久2022 | 欧美一区二区三区高清视频 | 在线观看国产精品一区 | 香港三级日本三级韩国三 | 91精品导航在线观看 | 香蕉综合视频 | 女同网站在线观看免费 | 久久久久综合网久久 | 妻子的背叛免费看 | 人人爽久久久噜噜噜丁香AV | 在线看免费大片45分钟 | 菠萝蜜麻豆一区 | 欧美XXXXX高潮喷水麻豆 | 亚洲精品国产一区二区贰佰信息网 | 国产亚洲欧美精品永久不卡 | 国产精品成人A片在线果冻 国产精品大尺度尺度视频 国产精品对白交换视频 | 中国ZLJZLJZLJZLJ精品 | 帝王被大臣们调教高肉 | 日韩日b视频 | 在线理论视频 | 丁香花五月婷婷开心 | 免费夫妻生活片AV | 日韩精品中文字幕一区二区三区 | 忘忧草在线社区WWW日本-韩国 | 9900LU永久跳转 | 日韩性freexxxx在线观看 | 四虎在线观看一区二区 | 97免费观看视频 | 国产色婷婷亚洲99精品 | 激情文学另类小说亚洲图片 | 国语自产拍在线观看偷拍在 | 国金国银| 久久久精品中文字幕麻豆发布 | 亏亏插曲叫疼的免费网址 | 99日韩精品 | 伦理片免费秋霞e | 大菠萝福利污下载APP | 四虎在线免费观看 | 中文字AV字幕在线观看 | 一二三四日本无码影视 | 国产黄色免费网站 | 男男挤奶油进去PLAY高污 | 一个人看www免费高清 | 亚洲视频色色王国 | 夜夜摸夜夜操 | 四虎影视永久在线精品 | 辽宁老熟女高潮狂叫视频 | 狠狠色视频 | 国产人妻丰满熟妇嗷嗷叫 | 国产ts在线观看 | 自拍小电影 | 国产大片在线播放 | 麻豆天美 | 日本高清中文字幕 | 日韩精品中文字幕高清在线 | 中午字幕在线观看 | 国产无遮挡A片又黄又爽 | 中文字幕一区中文亚洲 | 老司机深夜福利视频 | 亚洲欧美国产日本 | 手机在线观看黄色网址 | 婷婷综合久久狠狠色 | 国产中文精品无码欧美综合小说 | 二级黄绝大片中国免费视频 | 人体内射精一区二区三区 | 最近免费中文字幕大全免费版视频 | 性色欧美| 波多野结衣全部系列在线观看 | 国产又黄又猛又粗又爽的A片漫 | 99RE6这里只有精品国产AV | 日本ji| 成人国产色情无码永久免费软件 | 午夜视频在线播放 | 国产91中文 | 中国亚洲女人69内射少妇 | 一个人观看的免费视频 | 九九九国产 | 岳的下面又大又黑又肥 | 中国大陆一级毛片 | 少妇高潮无套内谢 | 迷你世界皮肤兑换码永久 | 91久久精品国产免费一区 | 色婷婷激婷婷深爱五月小说 | 精品亚洲成A人7777在线观看 | 亚洲国产中文字幕在线视频综合 | 亚洲欧洲日本在线观看 | 日本高新1区2区3区 日本高清中文字幕 | 亚洲色无色A片一区二区农夫山泉 | 久久久网 | 精品人妻无码日本一区二区三区 | 最新国产中文字幕 | 免费在线成人网 | 最近高清中文在线字幕在线观看1 | 成人在免费视频手机观看网站 | 国产精品久久久久久久久免费hd | 国产精品99久久久久久WWW | 色多多深夜福利免费观看 | 特黄A又粗又大又黄又爽A片软件 | 色多多www | 日本高清免费一本视频无需下载 | 天天躁日日2018躁狠狠躁 | 午夜在线观看视频免费成人 | 狠狠cao在线视频观看 | 国产精品扒开腿做爽爽爽A片 | 中文字幕一区二区三区视频在线 | 日本一二三区视频在线 | 少妇高潮呻吟A片免费看小说 | 国产精品18久久久久久欧美网址 | 久久久最新精品 | 伊人论坛| 国产精品久久久久久夜夜夜夜 | 色婷婷久久啪啪一区二区 | 欧美精品hdvdeosex4k | 亚洲午夜在线播放 | 日韩人妻精品久久日 | WWW免费刺激无码又爽又色视频 | 亚洲欧洲日韩极速播放 | 久久亚洲精品玖玖玖玖 | 免费99精品国产人妻自在线 | 国产一卡 二卡三卡四卡无卡乱码视频 | 三级国产精品一区二区 | 国产又爽又黄无码无遮挡在线观看 | 中国一级特黄真人毛片 | 亚洲欧洲无码AV在线观看你懂的 | 天天干天天夜 | 少妇寂寞偷公乱400章深夜书屋 | 91精品国产品国语在线不卡 | 激情6月丁香婷婷色综合 | 日韩欧美三级在线 | 成人嘿嘿视频网站在线 | 欧美一二三区视频 | 成年男人午夜片免费观看 | 高清对白精彩国产国语 | 大叔爱上我视频在线观看 | 全部免费国产潢色一级 | 内射老阿姨1区2区3区4区 | 亚洲国产精品日本无码小说 | 国产人妻一区二区三区色戒乐 | 国产又粗又黄又爽的A片精华液 | 亚洲中文字幕无码一久久区 | 国产福利在线观看免费第一福利 | 换脸国产AV一区二区三区 | 99久久免费看国产精品 | 国精一二二产品无人区免费应用 | 啪啪小说网 | 日韩中文字幕精品久久 | 免费激情网址 | 清晨被舔醒的NP小说 | 性感美女视频免费网站午夜 | 日本免费观看网站 | 亚洲日本一期二期三期精华液 | 国精产品888 | 中文天堂最新版www官网 | 亚洲国产成人精品激情 | 久久亚洲精品国产精品黑人 | 中文字幕在线观看 | 日韩欧美激情 | 91国内在线视频 | 精品国产天堂综合一区在线 | 成人无码免费A片免费看软件 | 亚洲性久久久久久久久久 | 天堂中文在线资源库用 | 黑人巨茎大战俄罗斯白人美女 | 日韩在线永久免费播放 | 欧美乱码卡1卡2卡三卡四卡 | 一区二区三区高清 | 中文字幕熟女人妻理论片 | 日本妇人成熟A片高潮小说 日本高清免费观看高清电影 | 学生妹无套内射正在播放 | 亚洲 欧美 精品 | 贵州美女一级纯黄大片 | 日本aa视频| 成年福利片在线观看 | 一区二区乱子伦在线播放 | 国产乱码卡二卡三卡老狼在线观看 | 免费永久观看美女视频网站网址 | 国产AV久久人人澡人人爱 | 日韩精品a在线视频 | 国内精品乱码卡一卡2卡 | 亚洲精品福利一区二区在线观看 | 国产毛片又爽又大A片 | 国产一卡2卡3卡4卡公司 | 国产福利在线视频尤物tv | 少妇性荡欲午夜性开放视频剧场 | 国产成人一区二区 | 欧美第一福利 | 日韩操穴 | 亚洲制服丝袜中文字幕 | 免费麻豆国产黄网站在线观看 | 成人午夜A片产无码免费视频日本 | 中文日韩亚洲欧美字幕 | 久久机热在线视频精品 | 女人18毛片A片久久18软件 | 久久无码欧美一二三区 | A片人澡C片人人妻 | 中文精品一区二区三区四区 | 99re6在线精品视频免费播放 | 婷婷熟女在线视频 | 黄页大全在线观看 | 人人干人人澡 | 国产精品VIDEOSSEX久久发布 | 亚洲区色情区激情区小说 | 中文无码在线观 | 麻豆视传媒在线看 | 日韩精品免费一线在线观看 | 99re视频精品全部免费 | 眉间雪电视剧全集在线观看 | 公车冰块PLAY张开腿调教 | 五月天六月丁香 | 香港三级日本三级韩国三级 | 日本三级韩国三级香港三级a级 | 国产AV人人妻人人爽 | 啊灬啊别停灬用力啊免费视频 | 三级网络免费地址 | 六月丁香中文字幕 | 2022国产成人精彩在线视频 | 综合五月天婷婷丁香 | 国产精品色欲AV亚洲三区软件 | 亚洲久久少妇中文字幕 | 精品人妻无码一区二区三区在线 | 亚洲一卡2卡3卡4卡乱码 在线 | 性日韩精品 | 国产精品高潮呻吟久久影视A片 | 婷婷综合 | 99在线观看精品视频 | 国产一级视频播放 | 波多野结衣在线影视免费观看 | 69性视频| 麻豆国产人妻精品无码AV | 美国三级在线 | 亚洲特黄大黄一级毛片 | JLZZJLZZ亚洲乱熟在线播放 | 四虎无码永久在线影库网址一个人 | 国产精品久久久久久久y | 亚洲天堂2014| 国内精品免费 | 精品无码一区二区三区蜜桃 | 在线视频永久免费网站 | 久久精品老熟女人妻毛片 | 久久综合给合久久97色美利坚 | 欧美成人高清在线视频大全 | 亚洲粉嫩美白在线 | 图片区乱熟图片区小说 | 日本少妇按摩做爰2 | 天天草夜夜操 | 国产美女视频一区二区三区 | 日本 欧美 国产 | 国产成人免费高清视频 | 旧版天堂网2014 | 柳岩老师好紧好爽再浪一点 | jizz孕妇孕交 | 久久久综合九色综合中文字幕 | 工口 里番 全彩 无码 | 公粗挺进了我的密道在线播放贝壳 | 日本久久精品视频 | 综合无码色情一区二区 | 免费黄色成年网站 | 观月雏乃种子 | 国产熟妇搡BBBB搡BB七区 | 欧美视频久久 | 四个熟妇搡BBBB搡BBBB | 国产乱码精品一区三上 | 亚洲欧美日韩国产成人app | 日本加勒比在线精品视频 | 污视频app网址丝瓜视频 | 岳的下面又大又黑又肥 | 亚洲日本韩国在线 | 少妇高潮A片特黄久久精品网 | 亚洲人成黄网在线观看 | 国产69精品久久久久乱码韩国 | 国产丝袜护土调教在线视频 | 人人做人人爽人人爱影视 | 日韩不卡在线播放 | 国产精品一级二级三级 | 欧美又粗又深又猛又爽A片 欧美又粗又长A片XXOO在线看 | 欧美日韩一区不卡在线观看 | 免费在线观看黄网站 | 九九久久久久午夜精选 | 国产第一页浮力影院草草影视 | 免费高清特色大片在线观看 | 伦理片在线观看午夜伦理电影三级网 | 色老头xxxxbbbb视频 | 黄www.| 亚洲乱码国产一区三区 | 国产免费黄色网址 | 91色交视频 | 日本老妇乱子伦中文视频 | 欧美男男videos在线 | 国产毛多水多做爰爽爽爽 | av在线观看| 色草视频 | 国产欧洲野花视频WWW | 久久九九视频 | 欲爱免费观看高清完整版 | 韩国在线无码中文字幕 | 大尺度黄文小说短篇刺激 | 亚洲精品久久久久一区二区三区 | 日本免费色视频 | 99在线观看免费 | 国产免费内射又粗又爽密桃视频 | 国产 偷拍 在线 福利 | 欧美极品第一页 | 久久久久久久99久久久毒国产 | 最近最新中文字幕大全免费版下载 | 色中色论坛网址 | 一道本不卡免费高清在线 | 欧美人善交videosg | 一级黄色网 | 无人区乱码1区2区3区 | 免费视频免费视频 | 中文字幕AV亚洲精品影视 | 第四房色播网 | 国色天香精品一卡二卡三卡 | 欧美香蕉人人人人人人爱 | 国产18禁黄网站免费观看 | 狠狠搜 | 影音先锋av男人色情 | 熟女AV之人妻熟女 | 人妻在客厅被C的呻吟 | 亚洲女同在线 | 东京干男人 | 免费一级毛片私人影院a行 免费一区二区三区无码A片 | 91制片厂制作果冻传媒网站 | 强行进女小姪女小芳 | 2022国产精品网站在线播放 | 九九精品视频一区二区三区 | 久久久天堂国产精品女人 | 自拍视频在线观看完整版 | 日本高清不卡码无码v亚洲 日本高清免费毛片大全 | 久久最新免费视频 | 亚洲欧美中文日韩二区一区 | 国产精品高潮呻吟AV久久黄 | 精品国产互换人妻麻豆 | 欧洲最新一卡二卡三卡四卡 | 久久不卡 | 夜色网址| 99国产在线视频 | 午夜免费无码福利视频麻豆 | 就要干 | 天天干天天澡 | 女人18毛片a级毛片一区②区 | 五月婷婷丁香六月 | 国产片免费看 | 国产成人精品免费视频网页大全 | 成人亚洲国产精品久久 | 国产日本高清免费视频在线观看 | 一本久道久久综合中文字幕 | 欧美videos超乳巨大 | 国产精品反差婊在线观看 | 国产一级特黄高清免费大片dvd | 91综合久久久久婷婷 | 桃子视频免费观看完整版HD | 4虎影院在线永久网址 | 97国产无遮挡A片又黄又爽小说 | 蜜桃少妇AV久久久久久高 | 无码人妻丰满熟妇啪啪欧美 | 国产美女一区二区 | 2020天堂在线亚洲精品专区 | 束美阁影视传媒 | 性荡视频播放器在线视频播放 | 野花社区www在线资源 | 日本少妇做爰片视频R | 婷婷深爱 | 韩国视频在线观看高h | 91天堂嫩模在线播放 | 黄a免费| 快穿被各种男主强好爽H | 天堂中文资源网 | 精品久久亚洲 | 亚洲欧洲日韩国产一区二区三区 | 波多野结衣一区2区3区 | 最爽乱小说录目伦小说 | 欧美一道本 | 中文字幕在线观看免费视频 | 国模极品一区二区三区 | 日产精品卡2卡三卡乱码网站 | 挺进去岳就不挣扎了的视频 | 免费高清毛片天天看 | 亚洲精品无码一区二区三区四虎 | 真实国产熟女人妻AV17P | 精品一区二区三区免费观看 | 狠狠色噜噜狠狠狠狠 | 亚洲精品无码一区二区 | 2018高清国产一区二区三区 | 国产免费网站看v片在线 | 国产精品久久人妻无码网站一区无 | 新婚人妻不戴套国产精品 | 欧美日韩国产另类一区二区三区 | 小雪尝禁果又粗又大的视频 | 免费国产成人高清在线网站东京 | 国产精品久久久久国产A级 国产精品久久久AV久久久 | 国产成人综合亚洲动漫在线 | 欧美xxxxx在线观看 | 情色婷婷 | 男人的天堂亚洲一线AV在线观看 | 扬名立万电影在线观看 | 国产精品高清在线观看地址 | 欧美一区二区三区高清视频 | 亚洲精品久久久久久成人 | 亚洲中字慕日产2024 | 欧美另类高清 | 亚洲视频在线一区二区三区 | 成人三级做爰视频在线看 | 免费人欧美成又黄又爽的视频 | 91精品福利一区二区三区野战 | 最好看的韩国日本在线观看 | 窝窝视频网看免费 | 幼春阁| 黄色在线视频播放 | 狠狠色综合7777久夜色撩人 | 色狠狠狠色噜噜噜综合网 | 综合久久一区二区三区 | 日韩免费中文字幕 | 一级毛片视频免费 | 亚洲精品黄 | 亚洲国产精品成熟老女人 | 亚洲AV无码一区二区三区牛牛 | 午夜精品久久久久久久 | 99久久一区二区精品 | 久久免费看少妇高潮A片JA小说 | 校园春色另类小说 | 忘忧草社区WWW日本高清图片 | 国产人妻一区二区三区久 | 在线欧美日韩精品一区二区 | 久久九九免费视频 | 国产精品自在自线亚洲 | 最近中文字幕高清中文字幕MV | 中文字幕AV久久激情亚洲精品 | 成人免费又大又爽A片视频 成人女人A级毛片免费软件 | 日日噜噜夜夜狠狠久久丁香婷婷 | 中国xxxxwwww泡妞的软件 | 亚洲精品卡2卡3卡4卡5卡区 | 一区二区传媒有限公司 | 国产露脸无码A区久久 | 国精产品一二二区视频 | 亚洲人成图片网站 | 色五婷婷| 精品AV亚洲乱码一区二区 | 在线观看国产黄色 | 免费国产成人午夜在线观看 | 动漫成年美女黄漫网站 | 婷婷射精AV这里只有精品 | 日本黄色一级网站 | 五月六月丁香婷婷激情 | 亚洲资源在线播放 | 欧美性受xxxx黑人xyx性爽 | 秋霞久久网 | 天天综合色天天综合 | 久久91精品国产91久久跳舞 | 午夜你懂的| 成人好色网 | 精品国产91久久久久久久 | 视频二区 调教中字 知名国产 | 欧美午夜寂寞影院安卓列表 | 日本搞逼| av先锋影音资源男人站 | jizz在线观看免费高清 | 9久热精品免费观看视频 | 老司机午夜精品视频在线观看免费 | 欧美日本二区 | 成年黄网站色大免费全看 | 男男BL各种姿势地方PLAY文 | 被十几个男人扒开腿猛戳电影 | 老司机欧美 | 益日韩欧群交P片内射中文 樱花草无码专区日本 | 久久久噜噜噜久久久 | 九九热这里只有国产精品 | 成人免费久久精品国产片久久影院 | 日本无码黄人妻一区二区 | 99久久国产露脸精品麻豆 | 在线观看免费黄色小视频 | 日日摸夜夜添夜夜添影院视频 | 久久鬼色| 亚洲色琪琪永久原网站 | 青青青国产手机在线播放 | 亚洲精品国产精品国自产99. | 一本久道综合在线无码 | 韩日一区二区三区 | 国产这里有精品 | 欧美一区二区三区不卡 | stormy danielsav视频| 床戏吻戏裸戏视频超长 | 丰满少妇夜夜爽爽高潮水 | 男主是军人的肉肉H | 免费一级国产生活片 | 一道本在线观看视频 | 99热99re| 永久免费品色堂 | 日本六十路无码熟妇交尾 | 品幼9seuu | 国产精品一区成人精品 | 日本网站在线看 | 亚洲一区小说区中文字幕 | 两根巨龙在她腿间同时进出 | 美女天天干 | 亚洲综合激情六月婷婷在线观看 | 师尊被掐着腰做到潮喷纯肉GB | 欧美AAAAAA级午夜福利视频 | 久久国产精品-久久精品 | 国产精品久久久久久久久鸭 | 经典乱家庭伦小说 | jizz大全| 免费大片现在播放 | 色狠狠亚洲爱综合网站 | 成人在线偷拍自拍视频 | 久久精品国产亚洲AV成人 | 色窝窝亚洲AV在线观看 | 亚洲清纯自偷自拍另类专区 | 久久久无码人妻精品无码 | 天天干天天干天天干天天干 | 在线观看国产亚洲视频免费 | 精品高潮呻吟AV久久无码 | 亚洲国产欧美中文手机在线 | 久色乳综合思思在线视频 | 3d人肉蒲团之极乐 | 国精产品一区一区三区M | 久久九九有精品国产56 | 免费的好黄的漫画 | 四虎2024国产最新地址 | 春色视频一区二区三区 | 国产成人无精品久久久久国语 | 偷拍自拍 亚洲色图 | va亚洲va日韩不卡在线观看 | 国产精品视频在线观看 | 性一交一乱一伦一色一情孩交 | 91尤物国产尤物福利 | 秋霞伦理手机在钱 | 国产伦子系列沙发午睡 | 日本少妇A片又爽又黄 | 一级黄色a | 亚洲精品一卡2卡3卡4卡乱码 | 日韩成人在线视频 | 国产极品JK白丝玉足喷白浆 | 人人做人人爽人人爱秋霞影视 | 91精品手机国产在线观 | 日产亚洲一区二区三区 | 一级做a爰片性色毛片思念网 | 亚洲国产精品不卡毛片a在线 | 无人区乱码1区2区3区 | 成人AV综合在线网站 | 美女视频一区二区三区 | 亚洲AV综合AV国产AV | 国产亚洲一区二区在线观看 | 成年网站在线在免费播放 | 九一国产精品 | 欧美日韩无 | 色久悠悠影院 |