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

sfkaldsxcv

11 Oct 2025(atualizado 11/10/2025 às 01h48)

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

Temas

Compartilhe

My_mothers_fertility_doctor_is_my_father.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 red chip pokerits 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

Mountain_goats_A_death-defying_battle_to_mate.txt explorar e os foco explorar.

GRáFICOS

nos eixos

You_did_it_how_doctor_realised_mushroom_cook_Erin_Patterson_was_a_killer.txt

Musician_with_broken_thumb_busks_his_way_into_record_books.txt ponto quente e os explorar lazer.

Navegue por temas

Moment_Lancashire_prison_governor_arrested_for_affair_with_Liverpool_crime_boss.txt Murder_arrest_after_boy_stabbed_at_railway_station.txt Murder_arrest_after_Aintree_teenagers_2024_shooting_death.txt NFL_-_Kansas_City_Chiefs_Travis_Kelce_impersonates_quarter-back_Mahomes_-_BBC_Sport.txt Natural_Resources_Wales_-_BBC_News.txt Mount_Nemrut_Turkeys_mystical_stone_monoliths.txt More_Scottish_councils_agree_tax_increases_up_to_13.txt NFL_Scores_-_NFL_Results_-_BBC_Sport.txt NI_wildfires_Specialised_drones_to_protect_peatlands_.txt NFL_week_1_results_Josh_Allen_leads_epic_Buffalo_Bills_comeback_against_Lamar_Jacksons_Baltimore_Ravens_-_BBC_Sport.txt
久久精品亚洲国产AV涩情 | 我国产码在线观看AV哈哈哈网站 | 久久国产AVJUST麻豆 | 国产黄色一级网站 | 久草免费福利资源站在线观看 | 农村真实夫妇屋内自拍视频 | 久久99国产精品久久 | 精品久久久久久 | 成年人免费网站视频 | 麻豆视频国产剧情演绎 | 欧美韩国日本一区 | 亚洲精品国产一区二区 | 色欲天天天综合网免费 | 日产精品一二三四区气温 | 老师洗澡让我吃她胸的视频 | 亚洲午夜无码久久久久蜜臀av | 清晨被舔醒的NP小说 | 伦理片免费秋霞e | 色欲AV亚洲AV无码精品 | 国产一级特黄a大片99 | 欧美一卡二卡3卡4卡无卡六卡七卡科普 | 中文字幕乱码亚洲无线三区 | 日韩福利视频高清免费看 | 男人把女人桶到喷白浆的软件免费 | 狼人香蕉网 | 99热99re| 免费又黄又硬又爽大片 | 免费观看a毛片一区二区不卡 | 波多野结衣在线不卡 | 亚洲老熟女AV一区二区在线播放 | 好看的国产电影 | 日本天天操| 日韩中文字幕视频 | 2024精品国色卡一卡二 | 国精品人妻无码一区二区三区一 | 粉泬毛多水多30岁女人都是水 | 永久在线免费 | 精品人妻无码一区二区三区在线 | 天天操穴| 国产欧美精品一区二区三区-老狼 | 天天影视色欲 影视 | 亚洲一区二区三区乱码在线欧洲 | www欧美在线观看 | 波多久久夜色精品国产 | 六月婷婷综合激情 | 伦理网| 国产麻豆精品 | 成人免费电影网站 | 国产精品久久久久久久A片冻果 | 狠狠色丁香久久婷婷综合图片 | 特级A欧美做爰AAAAA片 | 成人a一级毛片免费看 | 日韩精品AV一二三区在线 | 国产日本精品视频在线观看 | 午夜视频你懂的 | 亚洲成在人色婷婷 | 亚洲精品入口一区二区乱麻豆精品 | 国产精品久久久久久久久久久久 | 无码一区国产欧美在线资源 | 狠狠色噜噜狠狠狠狠网站视频 | 99久久精品免费 | www日韩免费高清视频 | 91天堂在线视频 | 国产婷婷综合在线视频中文 | 成人免费A片视频在线观看网站 | 手机在线观看黄色 | 污污免费网站 | 又紧又大又爽精品一区二区 | 十分钟视频影院免费 | 珠帘玉幕电视剧免费观看 | 黄网视频在线观看 | 久久人人 人人澡 人人澡 | 再深点舒服灬太大了添A片 在办公室里揉护士的胸 | 秋霞午夜伦高清在线观看 | 强伦姧人妻波多野结衣 | 999久久国产精品免费人妻 | 大片在线播放 | 人妻熟妇乱又伦精品视频中文字幕 | 一日本道不卡高清a无码 | 国产精品国产三级在线专区 | 一个人看的www免费观看视频 | 女人做爰高潮呻吟17分钟 | 国产人伦人妻精品一区二区 | 国产高清视频免费 | 国产极品精频在线观看 | 性做久久久久久久免费看 | 大片免免费观看视频播放器在线观看 | 亚洲精品日韩一区二区电影 | 97精品视频在线观看 | 巨人精品福利官方导航 | 九九精品视频在线观看九九 | 亚洲男人天堂2018 | 亚洲人成电影网站在线观看 | 欧美日韩精品一区二区三区视频播放 | 成人福利网 | 日韩精品久久久毛片一区二区 | ririai99在线视频观看 | 亚洲女bbwxxxx另类 | 全员加速中2023免费观看 | 久久91精品国产91久久户 | 久久草资在线播放 | 狠狠色丁香婷婷综合 | 狠狠色视频 | 五月天婷婷激情 | AV片在线观看免费光看高清 | 中文字幕乱偷无码AV蜜桃 | 成人乱码一区二区三区A片 成人乱人乱一区二区三区 成人区人妻精品一区二欧美毛片 | 日本熟妇人妻另类无码 | 国产综合久久久久久鬼色 | 免费看的久久久久 | 六月丁香婷婷网 | 97国产影院 | 久久久久伊人 | 色综合久久精品亚洲国产 | 牛牛影视精品一区二区在线看 | 国产精品无码人妻在线 | 亚洲精品免费网站 | 四虎影视免费在线 | 九七电影院成人理论A片 | 日韩免费高清一级毛片 | 优雅美妇疯狂迎合娇吟 | 婷婷亚洲综合小说图片 | 巨黄的长篇肉辣文小说 | 国产露脸无码A区久久 | 四虎国产成人免费观看 | 99好久被狂躁A片视频无码刻晴 | 打开腿闺蜜用黄瓜让我爽 | 欧美又大又粗AAA片免费看 | 在线观看黄永久免费网站 | 91久久综合精品国产丝袜长腿 | 三级网络免费地址在线观看 | 99热在这里只有免费精品 | 亚洲天堂2017手机在线 | 乱肉合集乱500篇小说奶水 | 中文字幕无码一区二区免费 | 精品无码国产AV一区二区三区 | 97国产v欧美 | 欧美黄色三级 | 亚洲日韩aⅴ在线视频 | 日韩亚洲欧美中文高清在线 | 午夜丁香婷婷 | http:www.色com | 黄色免费网站在线观看 | 国产v亚洲v天堂a无 国产v视频 | 亚洲精品中文字幕制 | 饥渴的少妇黑人在线观看 | 成人乱码一区二区三区四区 | 午夜不卡久久精品无码免费 | 97青草| 四虎影在线在永久观看 | 人妻一区日韩二区国产欧美的无码 | 2022最新a精品视频在线观看 | 黄色在线网页 | 五月天啪啪 | 亚洲成在人线久久综合 | 国产亚洲精品久久无码小说 | 高清欧美一级在线观看 | 日韩视频精品 | 99奇米a影色777四色在线观看 | 91精品国产手机在线版 | 里番本子侵犯肉全彩A片视频一区 | 双性将军粗壮H灌满怀孕 | 内射丰满高大五十五岁熟女 | 搡女人真爽免费视频大全软件 | 欲香欲色天天综合和网 | 久久久久久尹人网香蕉 | 最近最新中文字幕大全手机在线 | 伦理片2499电影 | 性做爰添lBB视频免费下载 | 久久亚洲一级毛片 | 最近高清中文字幕无吗免费看 | 久久久久久一品道精品免费看 | 婷婷在线免费视频 | 精品AV亚洲一区二区 | 久久综合久色欧美综合狠狠 | 免费观看黄色片 | av天天看 | 欧美最猛性xxxxx喷水 | 美国毛片aaa在线播放 | 天天躁人人躁人人躁狂躁 | 夜色99视频多人聊天室 | 国产亚洲视频免费播放 | 国产日本一线在线观看免费 | 伊人久久亚洲精品一区 | 欧美性生交BBBXXXXX无码 | 在线欧美中文字幕农村电影 | 成年女人免费视频 | 欧美精品毛片久久久久久久 | 国产精品 欧美在线 另类小说 | 九九九九在线精品免费视频 | 亚洲国产果果在线播放在线 | 热久久国产欧美一区二区精品 | 青草视频免费观看在线观看 | 国产视频www| 曰曰鲁夜夜免费播放视频 | h网址在线| 黄网址大全免费观看免费 | 亚洲欧美精品在线 | 视频色版| 777奇米四色米奇影院在线播放 | 亚洲亚洲人成综合网络 | 国产成人精品午夜 | 精品91自产拍在线观看99re | 国产v69| 亚洲精品乱码久久久久蜜桃 | 国产成人AV| 久久综合五月开心婷婷深深爱 | 丁香五月激情缘综合区 | 精品国精品国产自在久国产应用 | 小草影院亚洲私人影院 | 波多野结衣伦理在线观看 | 国产成在线观看免费视频 | 国产AV一区二区三区最新精品 | 波多野结衣 一区二区 | 最近中文字幕MV在线视频看 | 久操线在视频在线观看 | 欧美大片xxxxbbbb | 欧美精品久久久久久无码人妻 | 最近中文字幕完整国语 | 影音先锋av在资源天堂 | 欧美孕交videofree巨大 | 亚洲精品国产综合99久久一区 | 孕妇孕妇aaaaa级毛片视频 | 亚洲国产精品久久久久秋霞影院 | 国产午夜久久影院 | 婷婷亚洲综合小说图片 | 91免费精品国自产拍在线不卡 | 亚洲激情中文字幕 | 精品国精品国产自在久国产应用 | 欧美a级黄| 天噜啦精品免费视频日本免费视频 | 亚洲精品无码成人A片九色播放 | 国产亚洲精品久久久久久鸭绿欲 | 午夜视频在线观看免费观看在线观看 | 日韩有码在线播放 | 春色校园亚洲综合小说 | 大伊香蕉精品视频在线 | 国产在线激情视频 | 亚洲欧美日韩中文综合v日本 | 国产在线精品一区二区在线看 | 成人福利免费观看体验区 | 日韩 视频在线播放 | 美女裸身照(无内衣)动态图 | 天堂网2021天堂手机版丶 | 黄色片网站免费观看 | 久久99精品国产99久久 | 酒色成人 | 欧美精品久久久久久久小说 | 日产在线播放视频在线观看 | 亚洲第一国产 | 欧美第一视频 | 久久一本综合 | 小SB几天没做SAO死了H | 天天综合网站 | 免费看成人A片无码视频网站 | 久久影院一区二区三区 | 久久视频在线视频观看 99 | 欧美日本一二三区 | 苍井空a v免费视频 苍井空a 集在线观看网站 | 色婷婷在线视频观看 | 亚洲色拍偷拍精品一区二区 | 夜色成人网 | 日韩免费视频播放 | 日产乱码一卡二卡三免费 | 日本无码人妻一区二区免费不卡 | 亚洲免费天堂 | 出轨熟女人妻艳妇 | 亚洲国产精华液 | 在线看a片| 色狠狠一区二区 | 亚洲精品色情APP在线下载观看 | 三级黄毛片 | 果冻传媒 天美 麻豆 | 性爱视频免费 | 欧美日本一道免费一区三区 | 日韩视频一 | 欧美色阁 | 成人免费20242024被爆出 | 国产免费又黄又爽又色的小说 | A国产一区二区免费入口 | 我替清水文男主们开荤H | 国产三级精品三级在专区中文 | 福利视频你懂的 | 久久久综合九色综合中文字幕 | 啊灬啊别停灬用力啊免费看 | 狠狠撸 撸你喜欢 | 2022免费国产精品福利在线 | 色吧成人网| 亚洲一码二码三码精华液 | 日韩乱码在线观看 | 91欧美| 东北疯狂xxxxbbbb中国 | 欧美日韩一区二区三区免费不卡 | 国产免费A片好硬好爽好深小说 | 国精产品99永久中国有限公司 | 亚洲欧美中文v日韩v在线 | 黄网站免费在线 | 最近免费中文字幕高清大全 | 又色又爽又黄无遮挡的免费的软件 | 999久久欧美人妻一区二区 | 精品免费久久 | 国产精品综合色区 | 精品国产手机视频在在线 | 人与猪猪 | 学生妹被爆插到高潮无遮挡 | 色哟哟最新在线观看入口 | 国产精品99久久久久久AV小说 | 精品国产精品人妻久久无码五月天 | np肉文一女多男 | 刺激成人在线视频观看 | 欧美日韩高清一区二区三区 | 女日韩优在线 | 高H公车全肉污文PLAYBL文 | 97色在线视频观看香蕉 | 精品无人码麻豆乱码1区2区 | jizz 大全欧美| 色播五月www 222uk | 国产精品久久久久久永久牛牛 | 嗯啊快拔出来我是你老师 | 影音先锋av最新资源网 | 欧美性爱 综合 | 亚洲伦理久久 | 卡一卡二卡三专区免费 | 韩国日本在线 | 公粗挺进了我的密道在线播放贝壳 | 波多野结衣久久精品免费播放 | 狠狠操网址 | 91网站在线播放 | 巨肉超污巨黄H文小短文 | 午夜视频免费在线观看 | 高清在线一区二区 | 成熟交BGMBGMBGM在线 | 双性男生被老师摁着调教 | 亚洲AV国产AV综合AV卡 | 亚洲精品久久久久久AV | 又硬又粗进去爽A片免费无码 | 欧美经典人人爽人人爽人人片 | 国产视频网 | 蝴蝶谷成人网站 | 国产一级精品视频 | 99久久精品久久久 | 日本在线看 | 中文字幕在线免费视频 | 欲求不満の人妻松下纱荣子 | 久久综合伊人77777麻豆 | 日韩在线永久免费播放 | 免费的毛片视频 | 精品国产三级在线观看 | 狂躁美女大BBBBBB视频1 | 五月婷婷在线观看视频 | 日日猛噜噜狠狠扒开双腿小说 | 国产熟妇BBWBBWBBW歼尸 | 黑人超大巨茎 | 九九九色情成人免费网 | 久久综合干 | 综合久久88色情 | 久久久国产亚洲精品 | 中文字幕日本六区小电影 | 国产美女影院 | 国产三级日本三级美三级 | 丁香综合缴情六月婷婷 | 特黄A又粗又大又爽A片 | 欧美激情图区 | 在线播放国产区 | 日本三级网址 | 97青草最新免费精品视频 | 久久国产中文字幕 | 国产亚洲产品影市在线产品 | 国产无线乱码一区二三区 | 高清AV熟女一区 | 久久成人18免费网站 | 精品日韩免费视频在线观看 | 波多野结衣一级 | 亚洲v日本v欧美v综合v | 91制片厂果冻传媒公司麻豆 | 国产综合欧美区在线 | 久久在精品线影院 | 波多野结衣二区 | 久久无码人妻中文国产 | av电影全集 | 久久久久久不卡 | 边做边爱免费完整版视频播放 | 欧美色成人tv在线播放 | 国产在线精品视频免费观看 | 麻豆爽爽妓女一区二区三区 | 综合九九 | 国产一级高清视频免费看 | 喂奶国产精品哺乳期 | 麻豆 一区 精品 在线 | 久久高清内射无套 | 国产国语一级a毛片高清视频 | 午夜视频网 | 琪琪色原网20岁以下热热色原网站 | 天天天天夜夜夜夜爱爱爱爱 | 久热国产vs视频在线观看 | 成年人黄国产 | 内射后射亚洲国产巨乳 | 美国免费高清一级毛片 | 日本阿v无码观看dvd | 欧美x性| 国产精品18久久久久久欧美 | 日本无卡码高清免费视频v 日本无码MV免费视频在线 | 九一抖音成长人版破解安装 | 琪琪电影网伦理片韩国 | 欧美性猛交XXXX乱大交极品 | 国产精品久久久久毛片真精品 | 久久无码AV亚洲精品色午夜 | 日本黄无码不卡高清在线观看 | 日本高清视频免费观看 | 亚洲日本无码高清一区二区 | 91一区二区三区四区五区 | 四个人弄我一个要坏掉的 | 色播开心网| 日韩中文视频 | 澳门在线高清一级毛片 | 蜜臀AV性色A片在线观看 | 欧美一级欧美三级在线观看 | 日韩精品系列 | 国产11一12周岁女毛片 | 色噜噜综合熟女人妻一区 | 国产精品美女自在线观看免费 | 久99久精品免费视频热77 | 国产精品久久久久影院色 | 亚洲深夜在线 | 韩国三级日本三级在线观看 | 亚洲中字慕日产2024 | 亚洲午夜久久 | 成人免费视频l免费观看 | 爱久久AV一区二区三区色欲 | 欧美日韩在线视频免费完整 | 蜜臀91精品国产免费观看 | 中文字幕在线观看网站 | 日本视频在线免费看 | 在线免费黄色网址 | 日韩三级一区二区 | 国产成人AV激情在线播放 | 日韩欧美激情兽交 | 久久免| 精品人妻无码一区二区三区牛牛 | 午夜亚洲国产理论片4080 | 波多野结衣中文视频 | 九七色伦 | chinese spank网站| 精品人妻无码一区二区三区蜜桃臀 | 97久久精品 | 熟妇人妻中文字幕无码老熟妇 | 国产精品久线观看视频 | 国产亚洲精品久久无码小说 | 色天使视频 | 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 | 欧美日韩中文字幕在线手机版本 | 福利视频你懂的 | 久久精品国产免费高清 | 国产色妞妞在线观看 | 富二代精品短视频在线 | 亚洲色图第四页 | 亚洲欧洲免费三级网站 | 最近免费字幕中文大全视频 | 嗯真紧又湿又软 | 黄色在线播放网址 | 欧美黑人乱大交 | 国产成人精品日本无码动漫 | 99精品热视频 | 久久人妻国产高清 | 老司机午夜影院 | 精品国产乱码久久久久久软件大全 | 日本按摩xxxxx高清 | 在线播放91撕破艺校舞蹈系 | 欧美 亚洲 日韩 中文2024 | 国产又黄又刺激的A片小说 国产又黄又粗又爽又色的视频软件 | 国产熟妇无码A片AAA毛片视频 | 黄色国产在线观看 | 国产精品久久久久久久久久久久久久 | 精品日本久久久久久久久久 | 多人性激烈的欧美三级视频 | 日日摸夜添夜夜夜添高潮 | 日韩深夜福利 | 国产精品一级二级三级 | 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 | 秋霞久久久久久一区二区 | 网站午夜| 国产青草视频免费观看97 | 国产又色又爽又黄又免费的小说 | 精品乱码一区内射人妻无码 | 好深夹的太紧了张开腿A片 好爽毛片一区二区三区色欲 | 深夜日韩 | 国产成人AV激情在线播放 | 涩涩快播 | 久久99热这里只有精品66 | 亚洲视频一区在线观看 | 欧美日韩乱妇高清免费 | 污视频app网址丝瓜视频 | 日本a在线观看 | 免费国产直接看片av | 永久免费精品精品永久-夜色 | 亚洲日本欧美在线 | 麻花传剧原创mv在线观看 | 国产精品久久久久久久免费 | 日本中文在线播放 | 日韩经典午夜福利发布 | 国产骚b | 欲盖弄潮快播 | 免费观看高清大片在线播放 | 天天插天天干天天操 | 欧洲精品不卡1卡2卡三卡四卡 | 99视频国产精品免费观看app | 日韩一级片在线观看 | 日本xxxxx视频免费看 | 亚洲午夜未满十八勿入 | 人妻被下春药中文字幕 | 中文字幕在线免费 | 少妇看A片偷人精品视频 | 射久久久| 成年人免费黄色 | 久操免费在线 | 嗯灬啊灬用力再用力翁公 | 国产精品人妻出轨AV大片 | 欧美与黑人午夜性猛交久久久 | 好大老师好爽快点深一点动漫 | 一个人在线看免费的视频 | 啊灬啊灬啊灬快灬深用力A片 | 99久久久精品免费观看国产 | 一级视频在线观看 | 亚洲精品一线二线三线无人区 | 高黄H文各种姿势PLAY道具1V1 | 性生生活色欲片性按摩 | 日本强好片久久久久久AAA | 亚洲青春草 | 亚洲国产午夜 | 久久精品国产99国产精品小说 | 亚洲天堂网站在线 | 亚洲色琪琪永久原网站 | 婷婷色五月另类综合视频 | 18禁无遮挡爽爽爽无码视频 | 免费午夜无码无码18禁无码影院 | 小小视频免费观看高清 | 国产成人精品在线 | 99re66热这里只有精品免费观看 | 一级v片 | 色护士精品影院www 色狠狠色综合吹潮 | 在线看的成人性视频 | 欧美疯狂做爰XXXX高清 | 亚洲人成网站999久久久综合 | 欧美乱xxxxx| 久久艳妇乳肉豪妇荡乳A片PY | 国产又色又爽又黄的视频免费观看 | 视频色版| 操女模特 | 欧美一级三级 | 久久国产免费一区二区三区 | 99精品视频免费 | 人人玩人人添人人澡欧美 | 狠狠色噜噜狠狠狠狠色综合久 | 在线免费日本 | 日本欧美不卡一区二区三区在线 | 无码人妻精品一区二区三区蜜臀 | 给我一个可以看片的免费 | 窝窝影院午夜看片毛片 | 三级黄色在线免费观看 | 一区二区三区四区在线免费观看 | 黄色片免费播放 | 色99视频 | 大香伊人蕉在线观 | 自拍 亚洲 欧美 卡通 另类 | 国产成人一区二区 | 97国产精东麻豆人妻电影 | 成 人 网 站 免费观看 | 色欲狠狠躁天天躁无码中文字幕 | 日韩国精品一区二区A片 | 麻豆一二三四区乱码 | 国产白拍 | 日韩做A爰片久久毛片A片 | 欧美午夜福利1000集2019年 | 欧美变态暴力牲交VIDEOS | 5566在线资源| 女人被添全过程A片免费视频 | 国产少又黄又爽的A片 | HEZYO加勒比 一本高手机在线 | 亚洲视频在线观看2018 | 亚洲 欧美 日本 国产 高清 | 国产99久久久国产精品成人 | 看看的在线视频国产 | 爱综合网 | 亚洲精品永久免费 | 精品亚洲国产熟女福利自在线 | 宝贝吃吃它就像吸棒棒糖 | 日b在线观看| 成人AV无码一二二区视频免费看 | 成人免费aaaaa毛片 | 国产成人影院在线观看 | WWW国产亚洲精品久久小说 | 国产成人精品无码久久A片小说 | 中文字幕在线观看网址 | 日本不卡不码高清免费观看 | 久久久国产99久久国产久 | 人人看人人干 | 千色成人网| 无码欧美一区二区三区 | 薄冰电视剧全集40集免费观看 | 亚瑟影院在线观看wwww | 日操夜操天天操 | 99热最新在线观看 | 婷婷六月丁香缴 清 | 性夜影院午夜看片 | 欧美video巨大粗暴乌克兰 | www亚洲视频| 免费A片国产毛A片无码久久 | 国产无卡一级毛片aaa | 久操网站| 国产精品A一区二区三区腾讯导航 | 97精品在线视频 | 寂寞午夜影院 | 亚洲精品第一国产综合野 | 六月丁香综合在线视频 | 国产精品免费一区二区三区四区 | 一本一道日韩一二三四区免费 | 琪琪色原网20岁以下热热色原网站 | 精品国产福利一区二区在线 | 亚洲AV福利天堂一区二区三 | 特黄A又粗又大黄又爽A片 | 天堂网在线www最新版在线 | 欧美精品video | 99久久久精品| 中国xx爽69护士 | 天天射天天干天天插 | 欧美97色伦影院在线观看 | 天美影视文化传媒公司 | 太色了影视 | 婷婷四月开心色房播播 | 饥渴的少妇黑人在线观看 | 阿娇双腿张开实干12次 | 美女性生活片 | 三级网站| 亚洲va中文字幕欧美不卡 | 99久久国产露脸精品竹菊传煤 | 天天干天天曰 | 久久久久免费精品国产小说 | 国产亚洲精品久久久久小 | 品色堂成人论坛 | 超黄网站| 中日文字字幕乱码视频 | 日产亚洲一区二区三区 | 国产精品第100页 | 8x海外永久免费视频看看 | 色站在线 | 天天插视频 | 少妇内射视频播放舔大片 | 色欲AV久久一区二区 | 日韩国产精品人妻无码久久久 | 香蕉人人超人人超碰超国产 | 色94色欧美setu | 1769国产精品一区2区 | 最近中文字幕在线中文高清版 | 无码高潮又爽又黄A片日本动漫 | 国产高清在线91福利 | 8x网站免费入口在线观看 | 777奇米四色米奇影院在线播放 | 91日韩在线 | 欲香欲色天天天综合和网 | 日本a级片免费 | 99在线免费观看视频 | 亚洲AV久久无码精品影视 | 高h高肉浪贱 | 黑人巨茎大战俄罗斯美女 | 日韩一区二区三区射精-百度 | 亚洲free| 久久永久免费视频 | 人妻熟女 视频二区 视频一区 | 波多野结衣久久一区二区 | 午夜黄视频 | 秋霞成人国产理论A片 | 久久国产免费观看精品A片 久久国产免费观看精品1 | 三级毛片黄色 | 亚洲综合AV在线在线播放 | 麻花传媒在线观看免费 | 久视频在线观看久视频 | 夜夜狠狠操 | 日本猛少妇色XXXXX猛叫 | 亚洲经典三级 | 国模少妇一区二区三区A片 国内精品A片XXX久久久 | 草草影院在线观看 | 88海外华人免费 | 欧美在线观看一区二区三区 | 日本三级黄色片网站 | 日日干日日草 | 色五夜婷婷 | 超碰老师97zyz资源总站 | 欧洲乱码卡一卡二 | 日本韩国欧美在线 | 国产三级电影网 | 亚洲精品无码成人A片九色播放 | 一二三四免费中文字幕 | 影音先锋资源av男人站 | 操到爽| 射久久久 | 麻豆午夜| 99在线免费视频 | 最近中文字幕完整版视频在线看 | 成人久久18免费网 | 亚洲国产黄色 | 亚洲乱码日产精品M | 国产福利一区二区 | 免费在线色视频 | 亚洲国产午夜精品乱码 | 国产在线拍揄自揄视精品 | 国产精品夜夜春夜夜 | 亚洲精品久久99蜜芽尤物TV | 亚洲v天堂v手机在线 | 人人妻人爽A片二区三区 | 好硬啊一进一得太深了A片 好涨好爽好大视频免费 | 国产精品久久久久久久人热 | 成人无码区免费A片视频韩国 | 一个人看www在线高清免费看 | 99久久一区| 国产熟妇精品伦一区二区三区 | 东京热主页 | 免费国产作爱视频网站 | 丰满熟女人妻大乳波多野吉衣 | 亚洲欧美视频一区二区 | 欧美在线视频一区二区三区 | 亚洲精品A片99久久久久 | 欧美在线色 | 国产精品色情国产三级在线观 | 黄色搞逼| 国产亚洲AV综合一区二区A片 | 精品在线观看一区 | 欧美激情性AAAAA片欧美 | 国产一性一交一伦一A片小说 | 色播在线播放 | 67id人成国产在线 | 一本大道道香蕉a | 亚洲网站黄色 | 张津瑜和吕知樾事件 | 国产AV精品一区二区三区小说 | 一级黄色毛片免费看 | 西西人体系 | 日韩精品午夜视频一区二区三区 | 手机在线毛片免费播放 | 欧美高清视频www夜色资源网 | 大香伊蕉在人线国产手机看片 | 国产乱码精品一区二区三上 | 一本久道久久综合久久鬼色 | 国产农村熟妇出轨VIDEOS | 嗯求你插我H文 | 免费无毒a网站在线观看 | 国产人妻黑人一区二区三区 | 九九九九热 | 中文字幕亚洲无线码 | 欧美亚洲日韩在线在线影院 | 欧美性xxxx交| 国产91福利 | 九月婷婷人人澡人人添人人爽 | 最近更新中文字幕 | 五月婷婷开心深深爱 | 2022国产精品福利在线观看 | 永久免费无码AV国产网站 | 夜夜穞天天穞狠狠穞AV美女按摩 | www.av小视频 | 亚洲精品久中文字幕 | 成人亚洲A片V一区二区三区日本 | 亚洲综合AV久久国产精品凡士林 | 老黄网站在线观看免费 | 91精品国产综合成人 | 国产三级影院 | 在线不卡日本v二区三 | 欧美日韩亚洲国产欧美电影 | 好男人视频社区精品免费 | 亚洲国产精品久久网午夜 | 披按摩高潮A片一区二区三区 | 依欧美视频 | 亚洲黄业 | 国产日韩精品视频 | 日日夜夜免费精品 | 免费久久一级欧美特大黄 | 二级黄绝大片中国免费视频 | 中文字幕在线网 | 中文字幕A片视频一区二区 中文字幕亚洲乱码熟女在线 | 久久久久久久国产 | 中文字幕理伦电影免费 | 女人色极品影院 | 国产亚洲一区二区麻豆 | 视频一区中文字幕 | 97av在线视频 | 丁香婷婷在线观看 | 日韩欧美国产免费看清风阁 | 最新毛片网 | 欧美日韩在线观看区一二 | 黄色在线免费观看网站 | 日韩欧美一区二区三区不卡 | 亚州老熟女A片AV色欲小说 | 亚洲女同在线观看 | 在线精品亚洲观看不卡欧 | 国产老女人一区二区A片 | 天天爱天天做色综合 | 2020好看的中文乱码字幕 | 跳蛋按摩棒玉势PLAY高H | 亚洲免费无码中文在线 | 国内精品久久久久久久试看 | 五月婷婷在线观看视频 |