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

foco

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

prpqugrr

12 Oct 2025(atualizado 12/10/2025 às 06h20)

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

Temas

Compartilhe

The_Baltic_Express_Central_Europes_new_hop-on_hop-off_train.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 resultado do jogo do hercílio luz hojeits 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

Youre_kind_of_raised_to_hate_tourists_Maui_fires_fan_tensions_on_Hawaiian_island.txt

The_US-EU_trade_deal_in_numbers_-_how_it_compares_to_UK_deal.txt conhecimento e os explorar lazer.

GRáFICOS

nos eixos

Xi Jinping - BBC News.txt

The_Oldbury_lad_who_headlined_New_York_Fashion_Week.txt moda e os foco conhecimento.

Navegue por temas

The_Peak_of_the_Balkans_Trail_Europes_last_true_wilderness.txt The_Japanese_project_rethinking_society_through_its_toilets.txt The_Schwebebahn_Germanys_spectacular_flying_train.txt The_US_island_with_no_cars_and_one_horse_for_every_person.txt The_Wing_Kings_guide_to_the_best_wings_in_Buffalo.txt The_best-case_scenario_for_AI_in_schools.txt The_Voice_of_Hind_Rajab_review_The_docudrama_about_a_Gaza_tragedy_leaving_audiences_distraught.txt The_Italian_city_with_too_much_history.txt The_British_isle_with_its_own_language.txt The_Kazakh_photographer_who_covered_Covid_from_a_hospital_ward.txt
亚洲国产欧美在线观看 | 国产精品日本欧美一区二区 | 国产成人AV一区二区在线观看 | 校园春色另类小说 | 国产a不卡片| 亚洲色图日韩 | 国产激情艳情在线看视频 | 天天操夜夜艹 | 精品熟女少妇AV久久免费软件 | 国产又色又爽又黄又免费的小说 | 日本少妇做爰大尺裸体 | 久久综合伊人77777麻豆 | 亚洲18在线天美 | 精品国产天堂综合一区在线 | 内衣秀无打底露了毛 | 欧美一区二区三区婷婷月色 | 一级中文字幕乱码免费 | 日本v视频 | 成人亚洲色欲色一欲WWW | 天堂а√中文最新版地址 | 在线免费黄色网址 | 亚洲 在线 成 人色色 | 善良的小峓子在线高清免费观看完整中文版 | 婷婷丁香久久 | 国产AV精品一区二区三区小说 | 欧洲男女下面进出的视频 | 永久免费毛片 | 99久热这里精品免费 | 亚洲精品一区久久久久一品AV | 69久久国产精品热88人妻 | 漂亮的丰年轻的继坶3在线观看 | 日本午夜大片免费观看视频 | 全部免费a级毛片 | 少妇高潮惨叫久久久久久欧美 | 久久香蕉精品视频 | 果冻传媒网站免费入口破解版 | 人人欧美 | 亚洲熟女乱色综合一区 | 在线看片亚洲 | 亚洲一区精品中文字幕 | 美女扒开尿道让男人捅 | 与女乱小说目录伦下载 | 你懂得在线视频 | 韩国一区二区视频 | 国产又爽又黄无码无遮挡在线观看 | 色情成人影院欧美激情 | 亚洲中文字幕婷婷在线 | 精品交小说合集500篇 | 日本无码精品一区二区三 | 日本护士xxxxx高清免费 | 人色网| 永久域名18勿进永久域名3XCC | 狠狠热在线视频免费 | 丁香婷婷色| 丰满老熟女白浆直流 | 91九色视频无限观看免费 | 性生交XXXX乱大交A片 | 国产视频一二三区 | 欧美一区二区三区免费 | 国产99在线a视频 | 四虎影视库免费永久视频 | 天天干夜夜操 | 久久综合九色综合 | 疯狂撞击美妇雪白的大肉臀 | 波多野结衣一二三区 | 综合亚洲桃色第一影院 | 欧美日韩亚洲成人 | 久久综合一区二区三区 | 日韩不卡在线视频 | 免费毛片基地 | 欧美 日韩 国产 另类 图片区 | 成年女人毛片免费播放视频m | 国色天香AV在线观看免费 | 看一级毛片女人洗澡 | 日本黄色xxxx| 四房播播qvod | 又大又黄又爽免费看A片 | 国色天香WWW视频 | 麻豆短视频传媒网站 | 在线亚洲国产日韩欧洲专区 | 99久久精品免费看国产一区二区 | 毛片黄在线看免费 | 色偷偷狠狠色综合网 | 狠狠躁日日躁夜夜躁A片小说按摩 | 边啃奶头边躁狠狠躁AV | 香港黄页精品视频在线 | 日本在线高清不卡 | 丁香综合网 | 国产精品兄妹在线观看麻豆 | 在线免费观看黄页 | 精品国产三级AV一区二区三区 | 在线播放黄色网址 | 精品国产乱码久久久久久人妻 | 蜜柚AV久久久久久久 | 色的视频在线观看免费播放 | 色婷婷综合缴情综六月 | 99久久久国产精品免费蜜臀 | 岛国大片在线播放高清 | 国产精品乱码久久久久软件 | 国产午精品午夜福利757视频播放 | 欧美极品色影院 | 无码人妻丰满熟妇奶水区码 | 无码日本大胆XXXX | 国产成人午夜精品免费视频 | 久久成人麻豆午夜电影 | 老少交玩TUBE | 亚洲国产在线资源网 | 人人爱人人看 | 99视频久九热精品 | 天噜啦精品免费视频日本免费视频 | 色窝窝9797eecomehttp最新 | 亚洲ass| caoporn 视频 | 草草影院w37 | 国产亚洲精品AAAA片小说 | 91精品国产高清91久久久久久 | 免费网站观看WWW在线观看 | 又黄又爽又无遮挡在线观看免费 | 奇米一区二区三区四区久久 | 亚洲AV永久无码麻豆A片 | 伦理片在线线手机版韩国免费观看 | 少妇真人直播免费视频 | 偷亚洲偷国产欧美高清 | 天天草综合 | 国产色精品久久人妻无码 | 米奇第四色色情 | 在线观看成人网站 | 国产不卡视频一区二区三区 | 四虎影视在线视频大全免费观看 | 福利视频导航网 | 99精品中文字幕 | 日产日韩亚洲欧美综合搜索 | avtt天堂网影音先锋 | 午夜亚洲精品 | 国产成人精品日本亚洲语言 | 中文字幕无码无卡视频 | 99久久亚洲综合精品网站 | 欧美粗大猛烈人妖 | 99热免费在线 | 在线看一区二区 | 免费看大黄高清网站视频在线 | 国产精品夜夜春夜夜爽久久小 | 九九re | 四虎影视在线看免费 720p | 欧美日韩亚洲中字二区 | 日韩欧美中文字幕送别 | 再深点灬舒服灬太大了添A片小说 | 免费成人论坛 | 公交车上荫蒂添的好舒服口述小说 | 美女扒开腿让男生桶爽免费APP | 亚洲精品久久黄大片 | 国产伦精品一区二区三区在线观看 | 高清av电影 | 爱音麻里亚 | 男女摸下面刺激免费视频软件 | 成人日韩熟女高清视频一区 | 亚洲中文字幕无码一久久区 | 玖玖成人 | 秽乱常伦H | 国产真人性做爰视频免费40分钟 | 中文字幕亚洲男人的天堂网络 | 日本三级免费 | 毛片随便看 | 久久热最新地址获取1 | 亚洲午夜久久久精品影院 | 亚洲一区二区三区四区五区六 | 国产v亚洲v天堂a无 国产v视频 | 欧美高清视频看片在线观看 | 色欲AV亚洲AV无码精品 | 欧美一区二区三区不卡免费 | 在线日韩麻豆一区 | 国产毛片在线看 | 欧美videos娇小 | 狠狠撸新网站 | 欧洲每年百万吨电子垃圾流向亚非 | 久久精品视频3 | 忘忧草在线影院WWW日本社区 | 亚洲最新网址 | 柳岩老师好紧好爽再浪一点 | 欧美无修正 | 97蜜桃图片| 欧美激情中文字幕一区二区 | 欧洲丰满大乳人妻无码欧美 | 风韵丰满熟妇啪啪区老熟熟女 | 国语熟妇乱人乱A片久久 | 色迷迷导航 | 亚洲精品久久国产高清小说 | 激情欧美日韩一区二区 | 麻豆文化传媒官方网站入口免费 | 免费高清在线影片一区 | 站长推荐国产精品视频 | 国产在线不卡视频 | 日本二区三区欧美亚洲国 | 日日碰狠狠躁久久躁96 | 亚洲国产天堂久久综合226 | 日本国产一卡二卡三新区 | 成人国内精品久久久久影院 | 欧美区一区二 | 樱花草WWW视频在线观看视频 | 天天干天天操天天干 | 亚洲最新永久在线观看 | 国产一性一交一伦一A片 | 四川一级片 | 香港三级日本三级韩国三 | 日韩一级免费毛片 | 国产高清免费观看 | 成人性生交大片免费看中国A片 | 第章丰腴美妇岳服侍巨龙 | 国产中文精品无码欧美综合小说 | 久久久无码精品一区二区三区 | 国产亚洲精品久久久久久久久动漫 | 真人插B免费视频播放 | 欧美又粗又大色情 | 不卡视频一区二区 | 脱了在阳台趴着去H | 一日本道不卡高清a无码 | 一区二区三区精密机械公司 | 百性阁综合另类 | 91制片厂果冻传媒公司麻豆 | 精品视频在线观看你懂的一区 | 激情文学小说区另类小说同性 | 观月雏乃 bt| 黄色免费网站视频 | 国产网友自拍视频 | 999久久久成人A片精品免费看 | 天天撸天天射 | 日本少妇A片又爽又黄 | 成人超级碰碰免费视频 | 粉嫩AV久久一区二区三区王玥 | 无码乱人伦一区二区亚洲一 | 亚洲欧洲日本在线 | 国产精品一级视频 | 亚洲不卡中文字幕 | 国产精品成人免费福利 | 国产在线视频一区二区不卡 | 疯狂少妇2做爰完整版播放 疯狂少妇2做爰中文字幕 | bl文H全肉 | 日韩一级精品久久久久 | 伊人蕉久75影院在线播放 | 久久综合久久综合九色 | 日本高清天码一区在线播放 | 在线黄色毛片 | 日韩精品视频福利资源站 | 国产第一色 | 国产视频网站在线观看 | 日韩国产精品视频 | 妞干网免费在线 | 亚洲色爽视频在线观看 | 九热这里只有精品 | 婷婷四房| 丁香六月综合网 | 国产一区自拍视频 | 亚洲精品乱码久久久久久蜜桃欧美 | 性xxxx奶大欧美高清 | 日本久久久久久久做爰片日本 | 亚洲精品久久国产片麻豆 | 亚洲一区在线观看无码欧美 | 性加拿大高清xxxxx | 日韩乱轮| 99re免费99re在线视频手机版 | 午夜少妇在线观看视频 | 国产精品青青在线麻豆 | 日韩精品一区二区三区国语自制 | 无码成人AA片一区二区 | 天天爽夜夜春 | 久久久久久国产a免费观看黄色大片 | 国产又色又爽又黄的A片 | 欧美一级在线免费观看 | 性欧美高清极品猛交 | 日本爽爽爽爽爽爽免费视频 | 啪啪内射少妇20241028 | 新版天堂资源在线官网8 | 人人看人人爽 | 国产成人综合精品 | 一百款流氓软件免费下载安装 | 97久久精品国产成人影院 | 在线看午夜福利片 | 91在线欧美| A片A三女人久久20247 | 国产亚洲精品视频在线网 | brazzers在线观看 | 麻豆传媒AV在线播放 | 无码人妻欧美丰满熟妇区毛片 | 婷婷四房综合激情五月性色 | 久久婷婷五月综合色精品首页 | 疯狂撞击美妇雪白的大肉臀 | 草 榴 2020最新地址T66Y | 丁香五月综合缴情综合 | 亚洲精品中文字幕乱码影院 | 91精品91| 北条麻妃 中文字幕 | 每日最新avhd101天天看新片 | 久久一级| 日韩色情免费高速视频 | 亚洲一卡2卡3卡4卡5卡乱码 | 国产一级毛片网站 | 91av影院| 大陆一级毛片免费视频观看 | 国产人妻系列无码专区第二页 | 亚洲 综合 欧美在线视频 | 亚洲欧美日本国产 | 午夜影院试ty | 快播5.0.80完美版 | 精品久久久久久久一区二区伦理 | 国产综合成人亚洲区 | 欧美极品欧美日韩 | 曰批全过程免费视频在线观看网站 | 99亚洲精品色情无码久久 | 日本精品久久久久久久久免费 | 欧美bbww| 亚洲精品久久麻豆蜜桃 | 少妇高潮呻吟A片免费看小说 | 好满好深好撑好涨h | 国产人妻出轨26P | 无码日本邻居大乳人妻波多野结衣 | 精品综合久久久久久蜜月 | 日韩成人A片一区二区三区 日韩艹 | 开心色xxxx | 亚洲无码一区二区 | 亚洲一二区视频 | 国产中文字幕一区 | japanXXXXXXX日本| 最近的2024中文字幕国语版 小说 | 中文字幕一区二区三A片 | 亚洲 欧美 天堂 综合 | www.狠狠操| 色中色新址 | 性一交一乱一伦在线播放 | 少妇高潮A片特黄久久精品网 | 日本无码WWW在线视频观看 | 国色天香精品一卡二卡三卡四卡 | 精品日韩二区三区精品视频 | 嗯宝贝叫的再浪一点 | 国产看片视频 | 国产一区精选播放022 | 最近免费中文字幕完整版在线看 | 影音先锋av最新资源站 | 黑人巨茎大战俄罗斯白人美女 | 91精品视频网站 | 欧美区bt | 巜疯狂的少妇4做爰BD | 欲香欲色天天综合和网 | 吕知樾张津瑜百度云 | 强壮公让我夜夜高潮A片免费看 | 久久都是精品 | 国产小视频免费在线观看 | 伊人亚洲综合网色 | 黄视频网站在线看 | 一色影院 | 精品乱码一卡2卡三卡4卡网 | 天天干精品 | 美女后入式xoxo动态图 | 樱桃视频直播在线观看高清下载 | 免费看欧美换爱交换乱理伦片 | 色搜成人搜索 | 阿v天堂2024在无码 | 国产极品尤物 | 欧美日韩一区二区三区免费不卡 | 久久99精品久久久久久园产越南 | 噜噜AV亚洲一区二区 | 精品成人久久 | 亚洲国产成人久久一区二区三区 | 尹人香蕉午夜电影网 | 两性影院| 无人视频免费观看免费直播 | 2024高清国产一区二区三区 | 色-情-伦-理一区二区三区电影 | 久久视频精品38线视频在线观看 | 2020精品国色卡一卡二 | 亚洲第一男人天堂 | 久久精品免费全国观看国产 | 午夜看片在线 | 亚洲国色天香卡2卡3卡4 | 超碰caoporen国产 | 日韩欧美一区二区三区在线视频 | 亚洲欧美激情精品一区二区 | 亚洲一区小说区中文字幕 | 波多野结衣办公室在线 | 中文字幕卡二和卡三的视频 | 曰本熟妇乱妇色A片在线 | 能播放女人另类ZOOZ0 | 亚洲一区欧洲一区 | 好爽好紧好大的免费视频国产 | 玖玖资源站365日更新入口 | 亚洲精品久久无码AV片麻豆 | 久久久精品久久久久三级 | 国产在线激情 | 一女六男NP慎入H | 成年视频xxxxxx在线 | 亚洲国产中文字幕在线观看 | a网站在线观看免费网站 | 亚洲成a人v欧美综合天堂下载 | 黑人巨大两根一起挤进A片小说 | 日本一区二区免费看 | 嗯好爽快点插我视频在线播放 | 无码日本精品一区二区片 | 伊人成人网 | 中文字幕日本无码少妇 | 女人扒开屁股爽桶30分钟 | 波多野结衣在线看片 | 黄色精品在线 | 视频色www永久免费 视频黄页在线观看 | 美日韩在线 | 日韩黄色在线 | 国产成人精品必看 | 成熟妇女A片高潮免费看 | 欲香欲色天天天综合和网 | 日本高清免费一本在线观看 | 亚洲色欲色欲在线大片 | 国产精品久久久爽爽爽麻豆色哟哟 | 久在线视视频在线观看 | 色综合久久精品亚洲国产消防 | 日本三级观看高清免费 | 国产又硬又粗进去好爽A片软件 | 色情A片成人网站免费看视频 | 免费观看又色又爽又黄的软件 | 国产免费观看a大片的网站 国产免费福利网站 | 成人在线视频免费观看 | 傲慢与偏见电影下载 | 亚洲AV无码一区二区三区牛牛 | 2022国产91精品久久久久久 | 日本永久视频 | 亚洲制服丝袜中文字幕 | 无码缴情做A爱片毛片A片 | 天天操天天拍 | 办公室激情波多野结衣 | 久久九九免费视频 | 久久久久久久久66精品片 | 午夜手机福利 | 亚洲精品久久久久无码AV | 国产一级视频久久 | 99久久亚洲精品日本无码 | 日本视频中文字幕一区二区 | 亚洲精品福利一区二区在线观看 | 国产91在线精品福利 | 成人 在线 视频自拍 | 天天干天天做 | 欧美日韩亚洲成人 | 99久久免费看少妇高潮A片特黄 | 日本成人网址 | 青青草免费手机在线视频亚洲视频 | 秋霞久久久久久一区二区 | 久久综合中文字幕 | 四虎综合| 国产成人免费高清视频 | 久久精品国产99国产精品免费看 | 免费 在线电影 | 国产成人精品一区二区免费 | 国产无遮挡又黄又大又爽在线观看 | 四虎2024国产最新地址 | 亚洲国产精品久久又爽黄A片 | 在线天堂中文在线资源网 | 欧美网址在线观看 | 麻豆文化传媒网站入口 | 在线高清无码欧美久章草 | 漂亮少妇高潮A片XXXX | 美女大尺度裸体写真 | 最近日本中文字幕免费完整 | 波多野结衣全集线观看456 | 多人交换做爰波多野结衣图片 | 日本免费在线一区 | 国产在线精品视频免费观看 | 一区二区三区四区在线播放 | 性欧美久久 | 夜色99视频多人聊天室 | 越南护士毛茸茸性 | 美妇岳妇的肉泬目录 | 日本黄A级A片国产免费 | 亚洲中文字幕无码爆乳APP | 国产成人久久综合热 | 国自产拍偷拍精品啪啪 | 中文乱码字幕视频观看网站免费 | 欧美精品狠狠色丁香婷婷 | 久久99AV无色码人妻蜜 | 91香蕉视频在线 | 大尺度做爰视频吃奶WWW | 丁香午夜婷婷 | 久久91精品国产91 | 久久99精品久久久久久h | 诱人的女邻居在线观看 | 狠狠人妻久久久久久综合九色 | 玖玖色资源 | 国产老熟女伦老熟妇视频 | 91福利精品老师国产自产在线 | 校花被房东C得合不拢腿H男男 | 国产美女被爽到高潮激情免费A片 | 欧美5o老妇性xxx | 亚洲学生妹高清AV | 天天黄色 | 无限观看韩国动漫免费观看大全 | 无码日本大胆XXXX | 欧美极品欧美精品欧美视频 | 狠狠的撸2014最新版 | 日韩国产午夜一区二区三区 | 国产电影在免费播放在线观看 | 欧洲bbbbb| 99久久国产免费中文无字幕 | 视频一区国产在线第一页 | 澳门永久av免费网站 | 国产激情一区二区三区四区 | 久操综合在线 | 全身无赤裸裸美女 | AV天堂午夜精品一区 | 干b在线 | 亚洲欧美另类图片 | 国产波多野结衣中文在线播放 | 工口 里番 全彩 无码 | 在线成本人动漫视频网站 | 国产成人AV一区二区在线观看 | 国产黄| 国产又爽又猛又粗的视频A片 | 狠狠躁天天躁 | 国产国语特级 a毛片 | 无码欧美黑人又大又 | CaoPorn越碰在线视频 | 欧美又大又粗又爽无码视频 | 欧美无人区码卡1卡2卡免费 | 亚洲AV无码A片一区二区三区 | 星野亚希 快播 | 午夜伦理一yy4480影院 | 中文字幕国产日韩 | 成人精品一区久久久久 | avav在线精品 | 国产国产成人精品久久 | 国产美女无遮挡裸体毛片A片软件 | 先锋影音男人av资源 | 亚洲AV无码一区二区色情蜜芽 | 三男玩一女三A片 | 免费无码无遮挡永久色情聊天下载 | 蜜桃日本免费看MV免费版 | 天天操夜夜操天天操 | 日本中文在线播放 | 把女人弄爽A片特黄大片在线 | 最近最新手机中文字幕在线看 | 日韩一道本 | 感觉里面痒快舔想做 | 成人免费AA片在线观看 | 伊人热人久久中文字幕 | 狠狠干影院 | 欧美日本道免费二区三区 | 成人AV久久一区二区三区 | 秋霞2018秋霞网理伦片 | 女人被躁到高潮免费视频 | 欧美在线观看视频一区 | 日韩影片2 | 久久国产偷 | 2020国产成人精品视频人 | 五月天激情婷婷 | 国产91网址 | 久久大香萑太香蕉av | 欧美日韩综合无码中文字幕 | 蜜桃色欲AV久久无码精品软件 | 人妻无码AV中文系列免费 | 久久综合五月开心婷婷深深爱 | 性欧美FREE少妇XXX | 欧美日韩影视 | 日韩版码免费福利视频 | 九九久久久久午夜精选 | 国产一级黄色毛片 | 亚洲AV无码专区国产精品麻豆 | 欧美在线视频一区 | 亚洲欧美日韩国产另类电影 | 国产精品久久久久久久久久久久久久 | 人人人人干 | 国产成人啪午夜精品网站男同 | WWW夜片内射视频在观看视频 | 中文字幕一级片 | 久久66热人妻偷产国产 | 国产毛片视频网站 | 亚洲剧场午夜在线观看 | 成人YY视频在线观看 | 成年人黄色网址 | 成都影院免费高清完整版 | 国产浮力草草影院CCYY | 男男腐文污高干嗯啊快点1V1 | 色天使久久综合网天天 | 97SE亚洲国产综合自在线不卡 | 久久福利资源网站免费看 | 国产主播AV福利精品一区 | 亚洲AV高清一区二区三区色欲 | 狂躁美女大BBBBBB视频1 | 97在线观看在线观看 | 激情文学综合网 | 色情免费视频自由 | 嗯啊WW免费视频网站 | 午夜视频在线观看网站 | 欧美日韩操 | 激情五月 色播五月 | 精品人妻无码一区二区三区50 | 国产亚洲精品久久久久久一区二区 | 无人视频免费观看免费直播 | 男女又黄又刺激B片免费网站 | 斗破苍穹第5季全集免费观看 | 草草影院地址发布页ccyycom | 久久在热照片免费 | 久久黄色小视频 | 亚洲免费三区 | 无码爽大片日本无码AAA特黄 | 微拍福利88| 日本免费色视频 | 夜夜春影院 | 秋霞av伦理片在线观看 | 欧美国产亚洲一区二区三区 | 免费看三级毛片 | 中文字幕精品一区二区三区在线 | 色情无码鲁鲁A的电影 | 97视频资源 | 香蕉综合视频 | 正在播放一区二区 | 国产又色又爽又高潮免费视频麻豆 | 激情综合久久 | 免费羞羞午夜爽爽爽视频 | 黄视频在线观看www免费 | 军婚H全肉辣文 | 四虎影视影院电影在线 | 岳的下面又大又黑又肥 | 91人人爱| 亚洲 欧美 制服 校园 动漫 | 中文字幕日本一区波多野不卡 | 国产少妇人妻 在线播放 | 少妇寂寞偷公乱400章深夜书屋 | 开心色播在线电影 | 亚洲国产日韩欧美一区二区三区 | 伦韩国理论片琪琪在线观看 | 精品高潮呻吟99AV无码 | 午夜成年奭片免费观看 | 免费电影院 | 国产一区二区三区A片在表 国产一区二区影院大全 | 国产综合久久久久 | 69免费视频 | 婷婷激情五月综合 | 亚洲欧美日韩精品久久 | 日本护士xxxx在线播放 | 色情无码WWW视频无码区下载 | 秋霞精品 | 国产欧美日本亚洲精品五区 | 欧美风情第一页 | 人久人久人久污污污精品国产 | 国产综合成人亚洲区 | 欧美xxxx做受欧美精品 | 狠狠色伊人亚洲综合网站l 狠狠色伊人亚洲综合第8页 | 日本精品人妻无码久久久 | 天天干夜操 | 天美传媒影视 | 色婷婷中文字幕在线一区天堂 | 国产成人精品久久免费动漫 | 久99久精品视频免费观看v | 国产一级视频 | 欧美在线高清视频 | 国99久9在线 | 免费 | 国产亚洲熟妇在线视频 | 一级做a爱过程免费视频超级 | 久久久全国免费视频 | 五月天婷婷视频在线观看 | 男女做爰猛烈啪啪吃奶真人免费 | 日本高清在线看片免费视频 | 96国产下药迷倒白嫩美女 | 精品一级毛片 | 狠狠色噜噜狠狠狠狠狠色综合久久 | 最近2019免费中文字幕视频三 | 久操资源在线 | 啪一啪射一射插一插 | 国产精品视频第一区二区三区 | 色导航网 | 动漫免费在线观看 | 欧美一道本一区二区三区 | 国产熟妇另类久久久久 | 在线观看国产亚洲视频免费 | 999久久久成人A片精品免费看 | 日本a级片免费 | 日本一道无马二区日本道专区 | 日韩亚洲欧洲在线rrrr片 | 青青草免费国产线观720 | 成熟交BGMBGMBGM在线看 | 伧理片午夜伧理片毛片日本 | 亚洲 综合 欧美在线 热 | 日韩欧美一区二区三区不卡在线 | 成人亚洲A片V二区三区久久 | 久久久久免费精品国产 | 6色成人| 人妻仑乱A片免费 | 少妇高清性色生活片成人版 | 成人在线偷拍自拍视频 | 亚洲精品久久久久999666 | 亚洲 日韩 中文字幕区 | 97青草| 名女躁b久久天天躁 | 久久成人乱小说 | 国产成人精品永久免费视频 | 久久久黄色大片 | 中国白毛老头性xxxxx | 无码精品人妻一区二区三区颖A片 | 日产国产欧美韩国在线 | 野外被强日本在线观看 | 日本亚洲成人 | 最近最好看2019年中文字幕 | 青草青草久热精品视频在线网站 | 精品精拍国产日韩26u | 日本综合在线 | 亚洲精品永久免费 | 久久强奷乱码老熟女 | 亚洲永久在线观看 | 亚洲色欧美 | 三级毛片三级毛片 | 婷婷五月久久丁香国产综合 | 国产人在线成免费视频 | 国产精品原创永久在线观看 | 国产无线乱码一区二三区 | 深夜国产成人福利在线观看女同 | 毛片站 | 国产亚洲精品久久综合阿香 | 欧美午夜精品久久久久久浪潮 | 亚洲精品无码一区专区国产 | 亚洲国产熟妇无码一区二区69 | 日本免费在线看 | 好涨太粗进去用力快好深 | 国产 日韩 中文字幕 制服 | 亚洲免费影院 | 黄色一级片免费在线观看 | 国产精品久久久久久久久久影院 | 老司机久久精品视频 | 日日摸夜夜添夜夜添久久 | 女人下边被添全过程A片图片 | 97国产视频 | 亚洲中文无码永久在线 | 亚洲另类第一页 | 强壮公次次弄得我好爽A片小说 | 古代一女被迫n男文肉辣 | 五月激激激综合网色播胖胖 | 伊人福利 | 免费特黄一区二区三区视频一 | 黄网在线观看 | 色妞色视频一区二区三区四区 | 近親五十路六十被亲子中出 | 四房色播网址 | 国产精品人妻无码77777 | 亚洲综合网国产福利精品一区 | 人妻熟女 视频二区 视频一区 | 毛片黄在线看免费 | 久久只有这里有精品4 | 欧美女人xx| 小莹的性荡生活45章最新章节 | 欧洲免费看片尺码大 | 老司机午夜精品网站在线观看 | 国产亲妺妺乱的性视频播放 | 狠狠躁日日躁夜夜躁A片小说天美 | 久久九九视频 | JAPANESE性内射| 种地吧少年第一季 | 高辣H文黄暴糙汉文H文 | 乱小说录目伦合集 | 四虎成人免费观看在线网址 | 四虎在线免费观看 | 欧美女同在线观看 | 久996视频精品免费观看 | 成网站在线观看人免费 | 不卡三级 | 纯肉高H肉辣浪荡NP论J | 天堂网在线最新版官网 | 国产精品亚洲а∨天堂2021 | 一级毛片在线看在线播放 | 丁香激情综合 | 国产人妻午夜无码AV天堂 | 国产微拍一区二区三区四区 | 偷偷撸2014最新版 | 亚洲啊v在线 | 久久国内精品 | 少妇人妻AV毛片在线看 | 国产清纯91天堂在线观看 | 久久综合色一综合色88 | 国精产品网曝黑料在线观看 | 亚洲人成日本在线观看 | 精品福利视频导航 | 国产又色又爽又黄的免费站 | 特级做A爰片毛片免费看108 | 天天躁狠狠躁夜躁2021 | 在线视频久久只有精品第一日韩 | 国产在线精品一区二区 | 久久99热只有频精品6狠狠 | 亚洲欧洲日产国无高清码图片 | 欧美日韩精品一区二区在线线 | 久久久久久久99精品免费观看 | 看全黄大色黄大片美女mmm | 国产毛A片啊久久久久久A | 亚洲一区二区三区四区五区六 | 苍井空毛片精品久久久 | 人妻无码13p| 四虎影视在线地址最新 | 国产一级视频播放 | 欧美亚洲日本国产 | 国产精品久久久久毛片真精品 | 国产在线亚洲精品观看不卡 | 92国产精品午夜免费福利视频 | 国内精品A片XXX久久久 | 夜夜综合网 | 日本98xxxxxxxxx | 亚洲精品一区二区午夜无码 | 久久精品国产一区二区三区四区 | v天堂中文在线 |