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

vxdk

10 Oct 2025(atualizado 10/10/2025 às 16h37)

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

Temas

Compartilhe

Rede D'Or tem custo menor que Petrobras em bonds Negócios pipelinevalor.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 pinnacle mgmtits 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 lungs hold secrets about your health as you age – here's a simple test to check them.txt

Reforma e freio de arruma??o no Imposto de Renda Fio da Meada Valor Econ?mico.txt conhecimento e os explorar explorar.

GRáFICOS

nos eixos

'The space is like an instrument' How Notre-Dame found its voice after fire muffled it.txt

Residents_concern_at_missed_rubbish_collections_in_Brighton.txt foco e os explorar moda.

Navegue por temas

Rejei??o de Engler pesou para vitória de Fuad Noman em Belo Horizonte, avalia cientista político Elei??es 2024 Valor Econ?mico.txt Reeves_clamps_down_on_emergency_funds_for_ministers.txt Retrocesso ESG n?o afetou metas ambientais individuais do setor financeiro, diz Denise Hills Rumos 2025 Valor Econ?mico.txt Rei Charles 3o participa do primeiro evento oficial depois do diagnóstico de cancer.txt Relationships I'm happily married but live in a different country from my husband.txt Reforma do IR e consignado s?o pautas prioritárias do governo Rumos 2025 Valor Econ?mico.txt Relógio usado por Carlos Alcaraz na vitória no US Open custa mais de 300 mil reais; saiba qual é.txt Remembering_Lonesome_George_the_celebrity_tortoise.txt Reeves_clamps_down_on_emergency_funds_for_ministers.txt Reform_not_ruling_out_scrapping_Senedd_politician_says.txt
成人午夜又粗又硬又长 | 四虎必出精品亚洲高清 | 国产无遮挡A片又黄又爽漫画 | 欧美一级美片在线观看免费 | 久久久亚洲天堂 | 91极品视频在线观看 | 黄网址在线永久免费观看 | 亚洲jizzjizz妇女 | 精品精品国产欧美在线 | 激情综合欧美 | 激情文学综合丁香 | 99精品99| 天堂资源地址在线 | 青青草A在在观免费线观看 青青草成人费观看 | 99国精产品一二三区 | 国产乱轮 | 欧美孕交videofree巨大 | 春色视频一区二区三区 | 亚洲hd| 亚洲区色影 | 在线观看播放理论片 | 高辣H文短篇啪啪小说男男 高辣H文黄暴糙汉文H文 | 曰曰摸天天摸人人看久久久 | 亚洲一二三无人区 | 欧美性在线视频 | 2024人体大胆中国人体 | 亚洲欧美日韩中文字幕久久 | 日韩喷潮 | 五月天丁香婷婷网 | 国产精品天天影视久久综合网 | 少妇做爰特黄A片免费看9588 | 免费黄色在线播放 | 97色伦久久视频在观看 | 国产69囗曝吞精在线视频 | 综合啪啪 | 最新伦理电影_伦理电影 | 中文字幕亚洲欧美日韩2019 | 四虎在线视频 | 国产av在在免费线观看美女 | 天天插天天操天天干 | 亚洲精品久久久久久中女字幕 | 日韩精品一区二区三区AV在线观看 | 蜜臀TVYY68888.COM 蜜桃网址 | 中文字幕在线观看你懂的 | 一区二区传媒有限公司 | 最新精品亚洲成a人在线观看 | 吉吉影音av资源站 | 黄色一级片在线 | 亚洲永久免费 | 成人午夜福利视频镇东影视 | 爱的色放mp4下载 | 高潮娇喘抽搐A片无码黄 | 亚洲国产中文在线视频 | 欧美日本韩国 | 夜夜操网 | 九一抖音成长人版破解安装 | 放放肉片动漫网 | 精品视频中文字幕 | 全肉高黄高h的小说推荐 | 国产刺激熟女短视频在线观看 | 成人亚洲欧美日韩在线观看 | 国产专区在线 | 长篇肉戏香艳完本小说排行榜 | 国产精品99久久免费黑人人妻 | 国产又黄又硬又湿又黄的A片小说 | 亚洲精品乱码久久久久久日本麻豆 | 中文无码字慕在线观看 | 免费看黄在线观看网站 | 日本亚洲精品无码专区国产 | 中文字幕乱码亚洲无线三区 | 成年18网站免费视频网站 | 涩涩爱涩涩电影网站 | 日本黄页网站在线观看 | 成人毛片网站 | 久久99爱视频| 九九热国产精品视频 | 国产性夜夜春夜夜爽1A片 | 久操视频在线免费观看 | 在线观看网站国产 | 亚洲网站黄色 | 真实乱视频国产免费观看 | 午夜亚洲国产理论片二级港台二级 | 国产成人免费高清在线观看 | 97制片厂爱豆传媒视频 | 色婷婷丁香 | 久久免费精品高清麻豆 | 久久国产免费观看精品 | 欧美疯狂xxxx乱大交视频 | 成熟少妇AV片在线观看 | 麻豆久久久9性大片 | 玖玖色在线| 少妇性BBB搡BBB爽爽爽小说 | 久久成人乱小说 | 国产中文字幕在线播放 | cao美女视频在线观看 | 黄色一级视频在线播放 | 久久精品国产99久久72 | 国产制服丝袜91在线 | 国产男女猛烈视频在线观看 | 豪妇荡乳1一5杨贵妃 | 扒开粉嫩小泬舌头伸进去视频 | 九九热在线视频观看这里只有精品 | 国产中文字幕在线 | 欧美日本韩国一二区视频 | 美丽的小蜜桃2 | 名女躁b久久天天躁 | 甜性涩爱下载地址 | 影视精品网站入口 | 斯大林格勒战役免费高清观看 | 狠狠色噜噜狠狠狠狠888奇米 | 99re6在线视频 | 亚洲国产成人久久综合一区 | 午夜男女爽爽羞羞影院在线观看 | 男人晚上适合偷偷看的污污 | 最近在线视频观看2018免费 | 狠狠色成人综合 | 日韩在线高清视频 | 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 | 被拖进小树林C了好爽H出租车 | 免费无套内谢少妇毛片A片软件 | 亚洲欧美日韩精品久久 | 看片| 天堂资源在线最新版 | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 91国内外精品自在线播放 | 男男双性高H浪荡小说合集 男男体育生乱yin高H肉汁 | 国产69囗曝吞精在线视频 | 日本视频久久 | 欧美激情bbbbbxxxxⅹ | 久久精品视频9 | 久草草在线视视频 | 性欧美黑人 | 久热爱免费精品视频在线播放 | 久久波多野结衣 | 日韩亚洲欧美综合 | 成年女人色毛片免费 | 欧美日韩久久久精品A片 | 91亚洲影院 | 日本精品国产 | 免费人成在线观看网站品爱网 | 黄色免费网址在线观看 | 国产亚洲综合网曝门系列 | 影音先锋av333资源网 | 欧美性生交活XXXXXDDDD | 夜夜操网| 最近高清中文在线字幕在线观看1 | 天天做.天天爱.天天综合网 | 永久在线免费 | 精品欧美中国福利第一导航 | 黑人肉大捧进出全过程动态 | 麻豆综合网 | 中国黄色网址 | A片粗大的内捧猛烈进出AV | 秋霞成人午夜鲁丝一区二区三区 | 168黄色网 | 免费一级大片儿 | 免费看污又色又爽又黄又脏小说 | 精品成人| 麻豆国产精品久久人妻 | 国产无遮挡又黄又爽在线视频 | 成人网导航 | 四虎永久免费观看在线 | 国产又大又硬又粗 | 丁香综合缴情六月婷婷 | 久9久9精品视频在线观看 | 成年男人深夜在线视频 | 秋霞一区| 国产在线观看91精品 | 成人午夜天 | 艳妇臀荡乳欲伦交换在线播放 | 亚洲精品第一页中文字幕 | 综合在线 日韩欧美 中文字幕 | 91制片厂果冻传媒大象传媒 | 免费看啪啪人A片AAA片玩具 | 性生交大片免费看A片直播 性生生活色欲片性按摩 | AV国産精品毛片一区二区三区 | 日韩免费高清大片在线 | 四虎影视在线看免费完整版 | 欧美激情欧美狂野欧美精品免费 | 日韩精品在线播放 | 天天插一插 | jizzjizz国产 | 真人性做爰AA片少妇 | 99热只有 | 欧美国产亚洲一区二区三区 | 国产成人无码免费看片软件 | 色欲精品国产AV久久久 | 成人a影片在线观看 | 在线播放午夜理论片 | 国产av在在免费线观看美女 | 四虎精品8848ys一区二区 | 一区二区三区视频 | 性一交一乱一交A片久久四色 | 性躯干在线观看 | 18禁免费裸乳裸体视频网站 | 午夜小视频免费观看 | 亚洲午夜久久久无码精品网红A片 | 特黄做愛又硬又大A片视频 特级 毛片 | 在线日本中文字幕 | 亚洲日韩视频 | 四虎影视在线影院在线观看免费视频 | 久久热在线视频精品店 | 日韩精品三级 | 黄色网址视频在线播放 | 国产又黄又爽又色的免费APP | 波多野一区 | 欧美 国产 亚洲视频 | 欧美流行 在线播放 | 福利资源在线观看 | 国产无遮挡裸体免费视频A片软件 | 天堂tv亚洲tv日本tv欧洲 | 2022国产成人综合精品 | jizz日本视频 | 好吊日在线观看 | 91视频一区二区三区 | 色八区人妻视频在线精品 | 一级爱| 亚洲乳大丰满中文字幕 | 欧美一级特黄aaaaaa在线看首页 | 天天干夜夜想 | www.7视频分类在线观看 | 亚洲中文字幕AV色情网址 | 日本综合视频 | 奇米影视四色影音先锋 | 久久视频这里只精品18 | 再插深点嗯好大好爽 | 欧美牲交A欧美牲交 | 日本免费一区二区久久人人澡 | 免费观看一级黄色片 | 在线视频久久只有精品 | wwwav在线| 国产精品久久久久久人妻精品A片 | 狠狠色噜噜狠狠狠狠色综合网 | 欧美一区二区三区不卡 | 给我一个可以免费看片的WWW | 亚洲、国产综合视频 | 国产欧美二区综合 | 亚洲精品一区二区三区婷婷月色 | 中文字幕乱码 电影在线观看 | 欧美国产在线一区 | 中文字幕日本一区 | 欧美性高清bbbbbbxxxxx | 麻花传媒沈芯语老师视频 | 另类专区另类专区亚洲 | 无套内谢少妇毛片A片小说色噜噜 | 性插动态图第139期百度 | 99久久www免费 | 四虎影视免费观看高清视频 | 亚洲精品久久久久久AV伊人 | 国精产品一二二区传媒公司 | 影音先锋av色噜噜影院 | 日日夜人人澡人人澡人人看免 | 综合色爱 | 秋霞电影伦理伦理片 | 教官你的太大了芊芊h | 亚洲一区二区色情苍井空 | 成人网站网址在线观看播放 | 国产成人99| 无码激情全黄做爰片 | 男人女人做差羞视频 | 少妇刮伦人妇A片1级 | 曰批全过程免费视频在线观看草莓 | 91成人啪国产啪永久地址 | 日本高清视频色视频免费 | 大胸年轻继坶2韩伦影院 | 免费黄色网址入口 | 国内精品一卡二卡三卡公司 | 免费无遮挡无码H肉日本动漫 | 亚洲综合AV久久国产精品凡士林 | 欧美又粗又深又猛又爽A片 欧美又粗又长A片XXOO在线看 | 成人午夜特黄AAAAA片男男 | 精品免费tv久久久久久久 | 性久久久久久久久久 | A片女女女女女女BBBB | 快快用力深点好疼别舔 | 欧美人成片免费看视频不卡 | 国模欢欢高清炮交图片 | 一二三四日本中文在线 | 三级网址大全 | 久久天天丁香婷婷中文字幕 | 丁香花成人 | 一区二区三区在线 | 蜜芽地址永不失联2022 | 国产东北露脸熟妇 | 老司机亚洲精品影院 | 国产精品免费视频能看 | 麻豆AV蜜桃AV久久 | 欧美一级欧美一级在线播放 | 第一次破處在线国语视频播放 | 韩国eee114网站 | 国产三级在线观看专区 | 亚洲精品久久久久69影院 | 最新国产在线熟女视频 | 最好看的最新的中文字幕3 最近2019中文字幕免费 | 色哟哟视频在线观看免费播放 | 亚洲精品一区久久久久一品AV | 欧美激情精品久久久久久大尺度 | 国产福利视频在线观看福利 | 秋霞在线观看视频一区二区三区 | 日本精品久久无码影院 | 人人香蕉 | jizz日本在线| 公和我做爽死我了A片AAB | 国产视频1 | 在线va无卡无码高清 | 加勒比AV一本大道香蕉大在线 | 忘忧草在线影院日本图片 | M字腿绑椅子玉势笔撑夹住双小说 | 精品乱子伦一区二区三区 | 一道本不卡高清专区 | 婷婷se| 四虎在线视频免费观看 | 波多野结衣全集在线观看 | 三级毛片免费看 | 黄页网站免费看 | 免费播放大片免费观看视频 | 放荡乱h伦文粗大hhh高潮 | 欧日韩无套内射变态 | 国产成人福利在线视频下载 | 五月婷婷激色号网 | 最好看的2018国语在线 | 一本大道一卡二卡入口2021 | 免费精品国产人妻国语 | 最新91网址 | 麻豆AV蜜桃AV久久 | 2015av天堂影音先锋 | 激情内射日本一区二区三区 | 成年男人午夜片免费观看 | 亚洲伦理网站 | 97香蕉视频 | 伊人2024视频免费观看 | 国产福利91精品 | 偷自拍 | 欧美在线一区二区 | 快播5.0.77下载 | 日本免费在线一区 | 国产亚洲精品久久无码98 | 爱久久AV一区二区三区色欲 | 亚洲精品综合在线影院 | 国产电影一区二区三曲爱妃记 | 亚洲无人区电影国产 | 欧美色乱| 久久国产成人精品Av | 被少妇滋润了一夜爽爽爽小说 | 99精品国产成人一区二区 | 日韩视频网 | 五月丁香啪啪激情综合5109 | 日韩精品久久久毛片一区二区 | a片地址 | 免费无码一区二区三区A片下载 | 毛茸茸的浓密在线视频 | 人妻不敢呻吟被中出A片视频 | 色偷偷国色天香在线观看免费视频 | 国产 欧美 亚洲 日韩视频 | 日日麻批免费视频播放高清 | 高清国产精品久久久久 | 国内自拍网 | 欧美日韩国产一区二区三区伦 | 国内一本到不卡在线观看 | 最好看的免费观看高清电影 | 亚洲欧美中文日韩二区一区 | 国精产品一区二区三区有限 | 男女啪啪永久免费观看网站 | 一级女性全黄久久生活片免费 | 乱肉合集乱500篇小说奶水 | 成人免费www在线高清观看 | 97色伦图片97色伦图影院久久 | 伦理79电影网在线观看 | 黑人性受xxxx黑人xyx性爽 | 国产精品成人免费综合 | 国产目拍亚洲精品一区 | 做爰全过程免费的视频在线观看 | 国产成人免费网站 | 乱人伦小说500篇目录 | 亚洲视频久久 | 搡老熟女老女人一区二区 | 亚洲性夜色噜噜噜在线观看不卡 | 午夜激情在线观看 | 狼人青草久久网尹人 | 国产三级日本三级韩国三级在线观看 | 插老师进去了好大好舒服小说 | 天堂网2017| 福利视频导航大全 | 色欲久久精品无码一区二区三区 | 欧美在线观看一区二区三 | 亚洲精品久久久久久蜜臀 | 波多野结衣 在线资源观看 波多野结衣 一区二区 | 国内精品一卡二卡三卡 | 国产综合有码无码中文字幕 | 人人爽久久久噜噜噜丁香AV | 8x永久在线视频 | 精品亚洲一区二区在线播放 | 在线久| 精品久久久久久 | 亚洲avi| 好大好硬好深好爽老师受不了 | 国产丝袜护土调教在线视频 | 青青操网| 91制片厂制作果冻传媒网站 | 日韩一区二区三区射精-百度 | 日韩在线播放全免费 | 久久精品美女 | 国语92午夜福利2000 | 夜色网址 | a国产精品| 伊人在香蕉 | 最近高清免费观看日本 | 国产老肥熟 | 午夜福利电影 | 久久综合九色综合97小说 | 狠狠干美女 | 好硬好湿好大再深一点动态图 | 最新日韩中文字幕 | 韩国中文全部三级伦在线观看中文 | 涩涩久久| 苍井空亚洲精品AA片在线播放 | 欧美aⅴ片| 国产成+人欧美+综合在线观看 | 中文字幕乱人伦视频在线 | 牛牛影视精品一区二区在线看 | 天天干夜夜夜操 | 在线看黄的网站 | 欧美国产日本精品一区二区三区 | 日本三级韩国三级美三级91 | 中国的wwxxx 中国大陆一级毛片 | 五月天天爱 | 国产一级在线播放 | 最新国产在线 | 国产手机视频在线观看 | 善良的小峓子在线高清免费观看完整中文版 | 草草影院地址发布页ccyycom | 上课时男同桌狂揉我下面污文 | 亚洲欧美日韩v中文在线 | 7723日本电影免费观看完整版 | 成年人黄色网址 | 国产成人手机高清在线观看网站 | 在办公室里揉护士的胸 | 人人妻人爽A片二区三区 | 国产三p | 伦理片影院 | 亚洲免费福利在线视频 | 四房播播色五月 | 公和我做爽死我了A片口述 公交车上无耻挖阴 | 久久久国产视频 | 久久精品少妇高潮A片免费观 | 久久久黄色片 | 日本韩国欧美在线 | 中国人电影网 | 青草免费观看 | 欧美精品亚洲 | 95国产精品人妻无码久 | 中文字幕乱码熟妇五十中出 | 亚洲v日韩v欧美在线观看 | 色哟哟最新在线观看入口 | 精品久久久久久无码人妻国产馆 | 久久6免费视频 | 真人作爱视频免费网站 | 四虎影院免费观看 | 精品视自拍视频在线观看 | 公车冰块PLAY张开腿调教 | 色se01短视频永久免费 | 性69式视频在线观看免费 | 久久久午夜视频 | 无码天堂亚洲国产AV久久 | 在线综合亚洲欧美网站 | 亚洲性无码AV久久成人 | 久久AV无码乱码A片无码苍井空 | 97av在线视频 | 一本大道道香蕉a | 人人干夜夜操 | 久久五月丁香激情综合 | 久久免费看少妇高潮A片JA | 一个人看的www视频高清免费 | 扬名立万在线播放 | 西西人体做爰大胆图片 | 真实国产乱子伦露脸 | ww欧洲ww在线视频看 | 成年美女黄网站色大免费视频 | 国产精品久久久久久久福利院 | 中国的wwxxx 中国大陆一级毛片 | 欧洲mv日韩mv国产mv | 精品自拍一区 | 九九香蕉 | 国产色欲一区二区精品久久呦 | 亚洲 自拍 欧美 小说 综合 | 在线观看中文字幕 | 久久久综合久久 | 久青草国产观看在线视频 | 日本三级2019在线观看免费 | 趴下让老子爽死你 | 中文字幕精品波多野结衣 | 国精品人妻无码一区二区三区三 | 日韩版码免费福利视频 | 日本在线日本中文字幕日本在线视频播放 | 国产精品自在在线午夜区app | 久久综合综合久久97色 | 亚洲欧美一区二区三区在线 | 欧美日本免费一区二区三区 | 88海外华人免费 | 波多野结家庭教师 | 一区二区三区高清不卡 | 国产亚洲精品资源在线26u | 色天使久久综合网天天 | 国产欧美日韩网站 | 被少妇滋润了一夜爽爽爽小说 | 久久久久久久综合日本亚洲 | 96国产下药迷倒白嫩美女 | 成都影院免费高清完整 | 久久国产一区二区 | 中文字幕一区在线观看 | 亚洲中国精品精华液 | 国产ts人妖系列视频网站 | 久久免费看少妇高潮A片特黄多 | 黄色资源在线观看 | 噜噜噜在线观看播放视频 | 欧美日韩国产在线人成app | 三区综合是哪三区 | 精品九九久久国内精品 | 成人亚洲区无码偷拍 | 国产91区 | 国产一级在线 | 男人j进女人j的图片 | 被公侵犯肉体中文字幕电影 | 黄色不卡视频 | 国产成人精品日本亚洲18图 | 真实国产熟睡乱子伦视频 | 国产精品成人观看视频免费 | 甜涩性爱下载 | 色妺妺网 | 国模欢欢高清炮交图片 | 国产免费A片好硬好爽好深漫画 | 99国模沟沟茂密的黑森林 | 情深不悔再爱难为 | 日韩成人免费视频 | 小雪第一次交换又粗又大老 | 男子扒开美女尿口做羞羞的事 | 美国毛片网 | 亚洲AV国产爽歪歪无码 | 久久久欧美国产精品人妻噜噜 | 国产AV无码免费一区二区 | 亚洲国产系列久久精品99人人 | 激情 亚洲 欧美 另类 小说 | 色网站欧美 | 九九九免费视频 | 2020国自产拍精品网站不卡 | 蜜臀91精品国产高清在线观看 | 国产色情无码网站视频APP | 一个人的高清视频www | 国产成人亚洲精品91专区手机 | 熟女人妻一区二区三区免费看 | 国产传媒18精品A片在线观看 | 国精品人妻无码一区二区三区软件 | 91天堂最新在线观看 | 日韩女同视频 | 最近中文字幕在线中文高清版 | 中文字幕乱码中文乱码777 | 麻豆91精品91久久久 | 色欲国产麻豆一精品一AV一免费 | 琪琪五月天综合婷婷 | 97久久国产露脸精品国产 | 好大好硬好爽18禁视频免费 | 亚洲A片成人无码久久精品色欲 | 99久热| 国产黄在线观看免费观看 | 97精品国产综合久久 | 宅女午夜福利免费视频 | 成年人午夜电影 | 欧美视频在线观在线看 | 黄色在线免费观看网站 | 99ee6热久久免费精品6 | 精品9e精品视频在线观看 | 麻豆视传媒官方网站入口 | 色欲AV久久综合人妻无码 | 比较刺激的H公共场合小说 边吃奶边狠狠躁日韩A片 | 国产97碰免费视频 | 美女精品久久久久久国产潘金莲 | 在线a级| 久久一本色道综合 | 日韩毛片免费 | 黄色网址亚洲 | 影音先锋资源av男人站 | www天堂网 | 免费看www网站入口 免费看v片 | 最新中文字幕在线观看 | 欧美日韩中文国产一区 | 品色成人网 | 777婷婷天堂综合区色吧 | 老黄网站在线观看免费 | 成人国内精品久久久久影院 | 影音先锋av色噜噜影院 | 夜夜操狠狠干 | 日韩精品久久久毛片一区二区 | 国产伦精品一区二区三区免费观看 | 国产精品一区二区 尿失禁 国产精品一区二555 | 一区二区三区美女视频 | 欧美激情视频二区 | 富二代精品短视频在线 | 国产片AV片永久免费观看 | 亚洲精品久久99蜜芽尤物TV | 正在播放国产精品 | 97在线观看免费版高清 | 色的视频在线观看免费播放 | 久久精品视在线观看2 | 国产熟妇无码A片AAA毛片视频 | 少妇高清性色生活片成人A片 | 一本久道热线在线 视频 | 国产超91| 亚洲中文字幕琪琪在线 | 国产三级精品三级国产 | 午夜伦伦电影理论片大片 | 国产成人亚洲精品影院 | 欧美一区二区三区四区在线观看 | 奇米四色二区 | 国产亚洲精品久久久久久鸭绿欲 | 99热久| 麻豆传煤官网入口免费进入 | 99久久精品费精品国产 | 天天操操操操操操 | 天噜啦精品免费视频日本免费视频 | 国产vs久久| 亚洲AV无码A片在线观看蜜桃 | 久久精品7 | 久久久久女人精品毛片九一 | 亚洲免费色视频 | 亚洲精品久久黄大片 | www.av在线| 精品国产福利一区二区在线 | 中文天堂最新版www官网 | 美国全免费特一级毛片 | 一区二区视频在线观看高清视频在线 | 一区二区免费播放 | 最近韩国日本免费观看高清 | 99re热在线视频 | 最新韩国r剧2019在线观看 | 毛片小说 | 免费做A爰片久久毛片A片 | 99热视| 99久久久无码国产精品AAA | 国产女人乱人伦精品一区二区 | 亚洲欧美精品无码一区二在线 | 国产亚洲自拍一区 | 日韩内射美女片在线观看网站 | 丁香婷婷开心激情深爱五月 | 天天插天天舔 | 亚洲免费影视 | bl文库肉yin荡受 | 久久这里只有精品免费播放 | 国产一性一交一伦一A片视频 | 国产中文视频 | 无码激情做A爰片毛片A片日本 | 日韩亚洲欧美日本精品va | 久久66热人妻偷产国产 | 免费日韩毛片 | 一级美国乱色毛片 | 抖抈app免费 | 国产精品亚洲一区二区 | 秋霞伦理电影 | 国产精品久久毛片A片杨颖 国产精品久久人妻互换 | 国产清纯91天堂在线观看 | 久久久综合久久 | 久久久这里有精品 | 国产成人亚洲精品91专区手机 | 久久精品视频免费看 | 久久亚洲一区二区 | 污污免费网站 | 久久成人国产精品免费 | 啊灬啊别停灬用力啊免费看 | 在线观看黄页网站 | 永久品色堂 | 丁香六月激情 | 无码人妻精品一区二区三区A片 | 求免费黄色网址 | 舌头伸进去添的我好爽高潮视频 | 国产欧美国日产在线播放 | 色综合天天综合网国产成人网 | 狠狠综合久久久久综 | 极品少妇高潮啪啪AV无码 | 老师你下面好紧夹死了 | 隔壁人妻偷人BD中字 | 理论片在线观看片免费 | 亚洲国产成人久久三区 | www视频在线观看天堂 | 大陆精品福利网址导航在线 | 国产又黄又爽又刺激的免费网址 | 欧美激情无码成人A片 | 日本不卡免费视频新二区 | 女人被添全过程A片免费视频 | 精品国产一区二区三区久久影院 | 欧美精品在线观看视频 | 欧美真人性做爰一二区欧美影院 | 人人在线碰碰视频免费 | 无毒黄色网址 | 老头老太bbbbbxxxxx | 国产91网站在线观看 | 成年人网站在线免费观看 | 苍老师免费网址 | 中午字幕在线观看 | 天堂网www中文在线资源 | 国产精品线路一线路二 | 97在线碰 | 中文字幕人妻熟女人妻 | 最新日韩中文字幕 | 色四房播播| 一级毛毛片毛片毛片毛片在线看 | 国产国语特级 a毛片 | 国产精品一区二区人妻无码 | 特黄A又粗又大黄又爽A片 | 久久天天婷婷五月俺也去 | 毛片免费观看久久精品 | 五月激情综合网 | 免费精品美女久久久久久久久久 | 光根电影院理论片午夜 | 熟妇乱子作爱视频大陆 | 欧美兽交少妇XXX | WWW国产亚洲精品久久麻豆 | 在线视频精品免费观看10 | 成年女人毛片免费播放视频m | 波多野结衣国产一区 | 日韩A片无码毛片免费看久久 | 天天撸在线影院 | 亚洲 欧美 变态 卡通 自拍 | 午夜操操 | 久久国产乱子精品免费女 | 日韩精品视频网 | 美女大尺度裸体写真 | 四虎影视四虎在钱免费 | 91精品国产免费青青碰在线观看 | 日本无码成人深夜无码 | 色天使久久综合给合久久97色 | 色综合久久婷婷天天 | 日本老妇乱子伦中文视频 | 中字幕视频在线永久在线观看免费 | 亚洲一卡2卡二卡4卡乱码 | 最新国产福利在线播放 | 久久久久久国产a免费观看黄色大片 | 亚洲欧美中文字幕高清在线 | 99精品全国免费7观看视频 | 黄色免费看片网站 | 久久桃花综合 | 韩国三日本三级中文字幕 | 欧美黑人乱大交 | 日日涩 | 国产精品久久久久无码人妻网站 | 亚洲色图激情小说 | 国产精品爱久久久久久久小说 | 少妇AV射精精品蜜桃专区 | 青草内射中出高潮 | 久操网在线 | 欧洲VIDEOS重口变态深 | 国产精品久久久久久久久免费hd | 日本v视频| 国产欧美va欧美va香蕉在线观看 | 成年电人电影免费网站 | 男女阳茎牲交32动态图片免费 | 色情综合另类小说图片 | 亚洲 欧美 国产 图片 | 欧美性生交大片免费看A片免费 | 日本久久高清一区二区三区毛片 | 中文字幕人成乱码在线观看 | 中文字幕永久免费视频 | 性一乱一交一A片.看A片 | 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 97视频精品全国在线观看 | 亚洲三级中文字幕 | 日本无吗不卡高清免V | 中文字幕国产 | 真人作爱视频免费视频大全 | 久久精品a| 2022国产精品福利在线观看 | 色猫直播 | 亚洲综合久久1区2区3区 | 国产99高清一区二区 | 性做久久久久久久免费看 | 国产又粗又猛又爽又黄的A片小说 | 欧美性生交18XXXXX无码 | 在线观看污网站 | 亚洲免费在线播放 | 性色va | 日本MV在线观看永久免费 | 激情婷婷丁香 | 天天弄天天干 | 性配久久久 | 秋霞亚洲| 国产日韩在线 | 亚洲国产区男人本色在线观看 | 成年人网站黄色 | 日本高清一二三区视频在线 | 欧美一区二区三区成人看不卡 | 亚洲精品中文一区二区在线 | 777色情在线无码 | A国产一区二区免费入口 | 亚洲精品国产精品乱码不卡 | 亚洲精品久久无码老熟妇 | 乱熟女高潮一区二区在线 | 成 人毛茸茸的视频 | 麻豆影视视频高清在线观看 | 亚洲产国偷V产偷V自拍色情 | 九九国产 | 成人午夜性A级毛片免费 |