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

moda

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

nramfvv

12 Oct 2025(atualizado 12/10/2025 às 06h05)

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

Temas

Compartilhe

BBCcom_Content_Index_for_April_2_2018.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 lottery results draw historyits 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

You_are_under_digital_arrest_Inside_a_scam_looting_millions_from_Indians.txt

BBCcom_Content_Index_for_April_5_2020.txt moda e os ponto quente moda.

GRáFICOS

nos eixos

'Boring' book by Suffolk author aims to send children to sleep.txt

BBCcom_Content_Index_for_April_8_2024.txt abrangente e os explorar enciclopédia.

Navegue por temas

BBCcom_Content_Index_for_April_9_2020.txt BBCcom_Content_Index_for_April_30_2022.txt BBCcom_Content_Index_for_April_3_2025.txt BBCcom_Content_Index_for_April_9_2018.txt BBCcom_Content_Index_for_April_4_2018.txt BBCcom_Content_Index_for_April_7_2025.txt BBCcom_Content_Index_for_April_2_2018.txt BBCcom_Content_Index_for_April_27_2022.txt BBCcom_Content_Index_for_April_3_2018.txt BBCcom_Content_Index_for_April_5_2025.txt
www视频在线观看免费 | 一区二区三区观看 | 凹凸18禁在线视频 | 美日韩一区二区三区 | 午夜视频免费观看 | 亚洲人精品午夜射精日韩 | 国产欧美在线手机观看 | 多人交换做爰波多野结衣图片 | 涩涩鲁亚洲精品一区二区 | 黄色三级网| 张津瑜和吕知樾事件 | 国产日韩欧美一区二区三区综合 | 成人综合国产乱在线 | 久在线观看福利视频 | 工口里番全彩无肉码3D啪啪 | 色老头成人免费综合视频 | 亚洲中文字幕乱码熟女在线 | 超级H纯肉 | 小小视频免费观看高清 | 日日夜夜免费精品视频 | 女人下边被添全过程A片小说 | 国产成人啪午夜精品网站男同 | 国产精品免费大片 | 国产成人精品综合久久久 | 花房姑娘HD版在线观看 | 王梦溪1.08g ed2k | 樱花草免费视频在线观看WWW | 一区二区三区视频 | 男男挤奶油进去PLAY高污 | 草草影院在线播放 | 夜夜看电影网 | 三妻四妾高清完整版在线观看免费 | 日本最黄网站 | 女人在厨房被添高潮全过程A片 | 内射爽无广熟女亚洲 | 班长坐在我的腿上娇喘 | 日本一区二区三区精品国产 | 97人人添人人澡人人澡人人澡 | 国产毛片久久国产 | 欧美伦理片美亚电影网 | www四虎在线高清 | 秽乱常伦H| 勿言推理日剧在线观看 | 亚洲性av免费 | 蜜桃臀AV高潮无码 | 吉泽明步超m自缚痴女 | 欧美日韩系列 | 五月婷婷啪啪 | 成人网站色情WWW在线 | 男女阳茎牲交32动态图片免费 | 久久精麻豆亚洲AV国产品 | 欧美一区二区三区不卡免费 | 99热精品一区 | 性裸交A片一区二区三区 | 王者荣耀最新更新公告 | 一级黄色网址 | 日本视频播放免费线上观看 | 亚洲 欧美 国产 动漫 综合 | 91短视频版在线观看www免费 | 日本里番大全无码工口 | 蜜桃精品免费久久久久影院 | 91在线视频在线观看 | 窝窝社区精品免费视频 | 久99久精品视频免费观看v | 色爱区综合激情五月综合色 | 又色又爽又黄的A片免费看苍井空 | 给啪啪视频免费观看 | 无码人妻深夜拍拍AAA片 | 夜夜流水无情 | 俺也去网| 拉风色影院 | 国产肥白大熟妇BBBB | 久操免费视频 | 五月婷色 | 亚洲欧美日韩视频一区 | 免费的性L交A片Y | 亚洲综合色网 | 500第一精品福利导航 | 边做边爱完整版免费视频播放视频 | 国产精品无码久久久久 | 她也色在线视频站 | 欧美黑人乱大交灬太大了视频 | 久久高清一级毛片 | 97亚洲狠狠色综合久久久久 | 福利网址 | 国产精品久久久精品a级小说 | 欧美精品一区二区黄A片 | 国产精品久久午夜夜伦鲁鲁 | 麻豆国产96在线日韩麻豆 | 国产精品福利尤物youwu | 亚洲 欧美 天堂 综合 | 乱码精品一卡2卡二卡三 | 全黄H全肉禁乱公 | 国产激情三级 | 中文国产乱码在线人妻一区二区 | 亚洲v日本v欧美v综合v | 久久精品a亚洲国产v高清不卡 | 亚洲视屏在线 | 图片区 偷拍区 小说区 视频 | 日韩精品极品视频在线观看免费 | 久青草国产视频 | 国语对白免费观看网址 | 国产无吗一区二区三区在线欢 | 黑人vs亚洲人在线播放 | 一区二区三区视频在线观看 | 日本久久久久久久 | 亚洲国产品综合人成综合网站 | 亚洲日本va中文字幕区 | 91丝袜在线 | 40集电视剧免费看全集在线观看 | www欧美视频| 成人乱码一区二区三区四区 | 在线黄色毛片 | 日本高清免费aaaaa大片视频 | 欧美一区二区激情视频 | 国产极品JK白丝喷白浆在线观看 | 91欧美视频 | 国精产品999永久天美 | 精品国产乱码久久久久久下载 | 国产成人免费全部网站 | 日韩在线观看视频免费 | 99国产精品久久久久久久久久久 | 玖玖爱视频在线 | 亚洲天堂网在线观看视频 | 亚洲三级毛片 | 免费黄色片网站 | 在线不欧美 | 国产影片大全 | 天天操天天操天天操天天操 | 三男一女伦奷A片 | 无人视频免费观看免费直播 | 国产精品久久久久福利网站 | 日韩a无v码在线播放免费 | 粗大新婚娇妻娇嫩 | 欧美人与牲动交xxxx | 欧美又粗又大又爽又色A片 欧美又粗又黄又硬的A片 | 国产熟妇另类久久久久婷婷 | 三级黄色免费观看 | 视频区 国产 图片区 小说区 | 精品性影院一区二区三区内射 | 99热这里只有精品免费国产 | 免费韩国一卡二卡三卡四卡 | 中文字幕在线视频免费观看 | 青青草在现线观看免费 | 国产精品反差婊在线观看 | 永久域名在线观看视频 | 婷停五月深爱五月 | 国产熟女内射OOOO | 性小说在线观看 | 国产情侣作爱视频免费观看 | 国精产品一区二区三区有限公司 | 亚洲A片无码一区二区蜜桃久久 | 久久国产麻豆 | 农村国产妇女精品一吃春药的效果 | 亚洲精品久久久久久中女字幕 | 波多野结衣a v免费观看 | 天天综合干 | 福利网站在线 | 成人午夜精品网站在线观看 | 成人影院app | 疯狂的少妇2做爰完整版韩国 | 玖操在线 | 成人伊人网 | 日本在线高清免费爱做网站 | 日本高清视频免费看 | 无码欧美熟妇人妻影院欧美潘金莲 | 久操国产在线 | 婷婷色青基地 | 美女h动态图 | 精品国产一区二区三区四区在线看 | 午夜亚洲福利在线老司机 | 国产精品伦一区二区三级视频 | 四房播播最新网址 | 91女神爱丝袜vivian在线观看 | 亚洲精品久久202420247 | XL司令第一季全集在线观看 | 2020中文字幕乱码免费 | 日本欧美一级 | 狂野欧美激情性XXXX在线观看 | 中文字幕天堂中文 | 国产高潮久久精品AV无码 | 深夜福利视频导航 | 色开心婷婷 | 诱人的女邻居BD在线观看 | 香港日本三级在线播放 | 国产 亚洲 中文字幕 在线 | 中文字幕亚洲一区 | 直接观看黄网站免费视频 | 激情 亚洲 欧美 另类 小说 | 一级毛片黄色 | 很黄的网站在线观看 | 午夜亚洲乱码伦小说区69堂 | 天美传媒影视在线网址 | 真人做爰片免费视频毛片中文 | 成人h免费观看视频 | 免费精品国产人妻国语三上优雅 | 尹人香蕉午夜电影网 | 国产又爽又大又黄A片 | 日本道专区无码中文字幕 | 国产精品第1页在线观看 | 国产香蕉视频在线播放 | 午夜久久免影院欧洲 | 97精品国产福利一区二区三区 | 国产精品扒开腿做爽爽爽视频 | 欧日韩美香蕉在线观看 | 肉小说污肉 | 国产精品久久久久久久久鸭 | 色欲狠狠躁天天躁无码中文字幕 | 玖玖国产在线 | 国产人妻人伦精品无码.麻豆 | 清冷将军被C把腿张开NP产 | 中文人妻AV久久人妻水密桃 | 日本一卡二卡三卡四卡免IOS | 草老逼| 香蕉成熟时| 国产情侣一区二区三区 | 松岛枫 qvod 四四房播播 | jizzjizzjizz美国| 日本免费网址大全在线观看 | 亚洲免费三级电影 | 国产一国产一级毛片视频在线 | 欧美人与物videos新另类性 | 免费日本视频 | 国产乱码人妻一区二区三区 | 亚洲阿v天堂在线2024 | 久久综合亚洲色综合 | 一级黄色网 | 国产高清日韩 | 久久精品免费全国观看国产 | 熟女毛多熟妇人妻O在线视频 | 欧美FREE性护士VIDE0SHD | 91久久精品一区二区三区 | 亚洲永久精品日本无码 | 精品一区二区在线观看 | 成人乱码一区二区三区AV66 | 国产超碰人人爱被IOS解锁 | 肉肉多色情文肉H | 日本理伦片午夜理伦片 | 亚洲精品久久久久久AV | 中文字幕亚洲无线码 | 先锋影音男人av资源 | 日本视频电影不卡无玛 | 成人在线你懂的 | 国产成人精品综合久久久软件 | 蜜桃传媒一区二区亚洲AV | 日韩一级片网址 | 宅男在线永久免费观看 | 日韩欧美一区二区无码免费 | 国产真人无码AV在线观看APP | 国产精品久久久久9999 | 色老二网址导航 | 搡东北熟妇老女人 | 日本无码V视频一区二区 | 日本福利网站 | 免费二区| JIZZJIZZ日本护士水多多小说 | 96精品国产高清在线看入口 | 免费观看欧美日韩亚洲 | 91精品国产高清久久久久久 | 婷婷夜色 | 成人亚洲A片V一区二区中出片 | 中文字日产幕码三区的做法大全 | 手机在线观看网站免费视频 | 成人黄色免费在线观看 | 2022国产男人亚洲欧美天堂 | 色一欲一性一乱一区二区三区 | 99久久成人| 欧美一卡二卡三卡四卡免ios | 国产成人精品综合在线观看 | 色网站欧美 | 免费黄色小网站 | 国产乱码精品一区二区三区香蕉 | 久久久久免费精品国产小说 | 人妻体内射精一区二区三区 | 黄色影视| 大又大粗又爽又黄少妇毛片 | 丁香激情五月 | 中文字幕永久在线视频 | 日韩精品久久久毛片一区二区 | 精品国产中文字幕在线视频 | 欧日韩无套内射变态 | 国产一级二级在线 | 亚洲好视频 | 日本成人高清 | 日本公妇里乱片A片在线播放保姆 | 91精品国产综合久久久久久 | 色玖玖| 国产一区亚洲二区三区毛片 | 无码日本被黑人强伦姧视频 | 黄色片黄色片黄色片黄色片黄色片 | 久久久99品牌的特色产品 | 日本三级全黄 | 影音先锋色情AV在线看片 | 国产视频网站在线观看 | 精品黑人一区二区三区久久 | 性爱免费视频 | 好吊色青青青国产在线播放 | 欧美疯狂做爰XXXX高潮 | 99精品无人区乱码在线观看 | 亚洲精品久久久无码AV片软件 | 啪啪啪免费视频 | 色爱区综合激月婷婷激情五月 | 99久久伊人精品波多野结衣 | 女闺蜜扒开腿让我CAO她 | 国精产品三区四区有限公司 | 亚洲 欧美 制服 校园 动漫 | 国产第一页视频 | 亚洲aⅴ| 国产精品99久久久久久宅男 | 97狠狠擼97狠狠擼视频 | 米奇影院888奇米色99在线 | 男男双性高H浪荡小说合集 男男体育生乱yin高H肉汁 | 少妇被粗大的猛烈的进出69影院 | 五月婷婷久久草丁香 | 久久精品视频免费看 | 粉嫩被粗大进进出出视频 | 新版中文在线资源 | 杨门女将肉艳史k8播放 | 国产激情艳情在线看视频 | h网址在线观看 | 黄色一级片在线免费观看 | 国产内地激情精品毛片在线一 | 边做边爱完整版免费视频播放视频 | 国产欧美日本在线 | 成人在线黄色 | 免费jizz在在线播放国产 | 性v天堂| 国产玖玖玖精品视频 | 第四色网主页 | 大陆人妻熟妇多毛A片 | 都市激综合小说区另类区 | 国产激情在线观看 | 国产一区二区亚洲精品 | 中文字幕 欧美精品 第1页 | 韩国片黄18以上在线观看 | 亚洲国产35p| 国产免费资源 | 伊人中文字幕在线观看 | xxxx 日本孕妇xx孕交 | 人色网 | 做A爰片久久毛片A片的价格 | 久久婷婷五月国产色综合 | 亚洲人成一区二区不卡 | 亚洲黄业 | 精品国产综合成人亚洲区 | 人妻少妇看A偷人无码电影 人妻少妇偷人无码精品AV | 成人AV免费网址在线观看 | 成人国产激情福利久久精品 | 精品无人区一区二区三区 | 欧美卡1卡2卡三卡四免费 | 开心色播五月 | 全肉高H短篇合集 | 热re99久久精品国99热 | 秋霞伦理手机在线看片 | 最近更新中文字幕2018全集免费 | 天天干夜夜曰 | 在线看免费无码A片视频 | 99精品全国免费7观看视频 | 要色地址 | 国产精品久久精品第一页不卡 | 涩涩网站在线观看 | 影音先锋av999资源站 | 欧美性生交大片免费看A片免费 | www.youjizz.com视频 | 日本黄视频网站 | 韩国理论疯狂少妇2做爰 | 欧美极品在线播放 | h网站在线免费观看 | 一级毛片aa高清免费观看 | 免费一级做a爰片久久毛片 免费一级特黄欧美大片久久网 | 逼喷水视频| 国产露脸无码A区久久 | 日本在线视频www鲁啊鲁 | 亚洲一区二区黄色 | 成人在免费观看视频国产 | 免费三级网址 | 一区两区三不卡 | 在线日本视频 | 豆国产97在线 | 亚洲 | 国产丰满人妻一区二区三区 | 高清一区二区三区 | 偷自视频区视频首页 | 五月婷婷七月丁香 | 中文字幕一区二区在线观看 | 免费国产之a视频 | 国产成人免费不卡在线观看 | 波多野结衣二区 | 亚洲精品一区二区三区麻豆 | 欧美男生射精高潮视频网站 | 亚洲性夜色噜噜噜在线观看不卡 | 愉拍自拍一区首页 | 国产成人在线播放 | 色综合成人丁香 | 欧美性A片又硬又粗又大暴力 | 婷婷五月俺也去人妻 | 国产一区二区福利 | 久久久91| 99视频在线国产 | 日韩亚洲欧美日本精品va | 日韩av吉吉 影音先锋 | 一个人免费看www视频 | 国产第一页在线视频 | 肉乳床欢无码A片动漫 | 日本高清二三四本2021第九页 | 亚洲精品久久久久中文另类 | 国模大胆一区二区三区 | 性欧美荷兰极品 | 四虎影视2024在线播放a | 国产a毛片 | 日本漫画之吃奶乳漫画 | 国产精品久久久久久久hd | 精品无码久久久久久久动漫 | 亚洲精品国产精品国自产小说 | 99国产成人高清在线视频 | 在线观看视频你懂的 | 精品推荐 国产 | 日韩精品视频在线播放 | 秋霞网一区二区 | 国产一区二区精品在线观看 | 无套内谢少妇毛片A片免 | 午夜福利视频合集4000手机 | 久久国产网| 免费看少妇高潮A片特黄 | 天天操天天干天天摸 | 橘梨纱 star 409| 高清色视频 | 亚洲精品久久区二区三区蜜桃臀 | 动态图污动态 | 92看看福利午夜影院 | 日日噜| 波多野结衣在线高清 | 免费在线看黄的网站 | 影音先锋熟女少妇AV资源 | 无人在线观看免费高清直播视频 | 久久精品美女 | 欧美人与动牲交免费看 | 五月激情站 | 欧美国产亚洲一区二区三区 | 欧美日韩欧美日韩 | 日韩欧美日本 | 老湿英视在现看免费 | 四虎影视在线影院在线观看观看 | 日韩一区二区三区视频在线观看 | 最近更新中文字幕 | 国产亲妺妺乱的性视频播放 | 品色 官网 | 欧日韩无套内射变态 | 美女脱内衣露出了奶头无马赛克图片 | 欧美日产国产精选 | 乱公和我做爽死我了A片 | 日产乱码一卡二卡三免费 | 熟女AV之人妻熟女 | 欧美日韩国产一区二区三区伦 | 国产午夜成人AV在线播放 | 看草逼| 色六月婷婷亚洲婷婷六月 | 最好看的韩国日本免费 | 三级韩国三级日产三级 | 69毛片 | 中文字幕亚洲第一页 | 天天爽天天干天天操 | 国产免费A片在线观看人 | 欧美内射深喉中文字幕 | 久久久99精品免费观看精品 | 久久视频这里只精品99 | 久色乳综合思思在线视频 | 和邻居交换做爰伦理 | 岳的大白屁股光溜溜 | 久久免费看少妇高潮A片2012 | 国产国语特级一级aa毛片 | 91制片厂制作果冻传媒八夷 | 特级做A爰片毛片免费看无码 | 在线你懂得 | 粉嫩虎白扒开小泬 | 好大好硬好爽18禁视频免费 | 免费久久久久 | 国产视频最新 | 大陆老太交xxxxxhd在线 | 一区二区三区波多野结衣 | 特黄做愛又硬又大A片视频 特级 毛片 | 国产精品人妻无码久久久免费看 | 原来的琪琪电影在线看 | 最近韩国中文字幕更新 | 国内精品久久久久影院网站 | 国产日韩亚洲精品视频 | 国产日韩视频在线观看 | 色中色成人论坛 | 99久久精品免费看国产一区二区三区 | 国产美女主播一级成人毛片 | 综合久久久久久 | 玖玖五月 | 天天操天天谢 | 流氓软件app免费下载大全下载 | 美国毛片免费一级 | 可以直接看的av网址站 | 1024国产欧美日韩精品 | 欧美人妻一区黄A片 | 天天爱天天做天天干 | 日本加勒比在线精品视频 | 天天色视频 | 夜夜夜噜噜噜 | 在线精品国产三级 | 精品国产一区二区三区四区在线看 | 国产精品久久人妻无码网站蜜臀 | 艳娒1一6全集在线高清 | 风韵丰满熟妇啪啪区老熟熟女 | 成人三级做爰视频在线看 | a久久久久一级毛片护士免费 | 人配人种视频xxxx | 九九爱视频 | 国产精品剧情 | 亚洲欧美日本综合 | 加勒比色综合 | 抽插嗯好爽好舒服好大 | 免费 高清 日本社区 | 最新三级网站 | 亚洲 日韩 国产 中文视频 | 有匪全集免费观看完整版 | 99er4久久视频精品首页 | 国产日产久久 | 韩国色网 | 日产一卡二卡乱码免费 | 国产精品久久久久三级 | 97国产精华最好的产品在线 | 日本黄无码不卡高清在线观看 | 无人区码卡二卡1卡2卡在线 | 久久中文字幕人妻AV熟女 | 色情大尺度吃奶做爰在线观看 | 成人乱码一区二区三区AV0 | 精品国产三级在线观看 | 蝌蚪在线视频 | 岛国岛国免费V片在线观看 岛国精品无码少妇在线 | 小视频免费观看在线 | 岛国色情A片无码视频免费看 | 影音先锋天堂网资源av | 最近最新中文字幕免费的一页 | 色哟哟哟精品免费看视频 | 精品国产天堂综合一区在线 | 欧美一区中文字幕 | 久久AV无码乱码A片无码 | 亚洲最大色网 | 日本亚洲欧洲色情 | 日本中文字幕乱码免费 | 国产精品反差婊在线观看 | 日本又黄又无无遮无码视频 | 亚洲国产高清精品线久久 | 2018高清国产一区二区三区 | 亚洲黄色免费在线观看 | 久久久最新精品 | 日本 韩国 三级 国产 欧美 | 又黄又刺激好看的小说 | AV夜夜躁狠狠躁日日躁 | 一级毛片aa| 99国产精品久久久久久久日本竹 | 日韩一级欧美一级 | 中文字幕精品视频在线 | 桃花久久| 国产成熟妇人高潮A片 | 国产黄色免费看 | 国产精品久久久久不卡绿巨人 | 国精品午夜不卡福利 | 欧洲最新一卡二卡三卡四卡 | av在线观看网站免费 | 麻豆久久婷婷综合五月国产 | 国产91极品福利手机观看 | 最近最新中文字幕MV在线1 | 好久被狂躁A片视频无码免费视频 | 精品婷婷乱码久久久久久日日 | av免费无码天堂在线 | 一本到国内在线视观看 | 亚洲免费综合色视频 | 在线观看动漫 | 国产 日韩 欧美 高清 亚洲 | 国产久爱青草视频在线观看 | 啊轻点灬大JI巴又大又粗A片 | 亚洲AV无码久久流水呻蜜桃久色 | 三级在线不卡 | 久久精品免视看国产成人2021 | 亚洲国产精品二区久久 | 成年女人色毛片免费 | 国产三级级在线电影 | 巨肉超污巨黄H文小短文双男 | 欧美一级手机免费观看片 | 色视频线观看在线播放 | 亚洲AV无码乱码A片无码18禁 | 五月 色| 久久91精品国产91久久户 | 丰满五十路熟女正在播放 | 欧美人妻WWW无码国产黄漫 | 韩日视频在线观看 | 天天综合网站 | 国产男女猛烈无遮挡A片漫画 | 九九九热精品 | 国产人妖在线观看 | 少妇被粗大的猛烈进出A片久久久 | 高清无码在线苍井空 | 日本不卡视频在线观看 | 欧美日韩国产综合在线小说 | 96xxxxx视频| 欧美成人另类 | 国产一性一交一伦一A片视频 | 国产精品伦理久久久久久 | 久久热视频精品店99 | 欧美高清老少配性啪啪 | 日韩精品一区二区三区中文 | 高清一区二区三区免费 | 色婷婷综合激情 | 久久久国产精品无码人妻 | 91国在线视频 | 爱婷婷网站在线观看 | 天堂中文在线资源库用 | 亚洲欧洲日本天天堂在线观看 | WWW色情成人免费视频 | 亚洲jizzjizz中国妇女 | 国产精品久久久 | 啪啪内射少妇20241028 | 18禁无遮挡羞羞污污污污网站 | 麻豆久久久9性大片 | 欧美一级在线看 | 中文字幕日本一区波多野不卡 | 纯肉高H种马艳遇风流多 | 波多野结家庭教师 | 日本高清一卡二卡三卡四卡无卡 | 欧美一区二区三区婷婷月色 | 日本三级韩国三级香港三级a级 | 最近最新的日本免费 | 日韩一区二区三区射精-百度 | 黄色免费观看视频网站 | 久久久久久全都是精品app | 波多野结衣1区 | 精品免费A片一区二区久久 精品美女国产互换人妻 | 巨乳水多后入抽插 | 亚洲高清无码加勒比 | 宅男噜噜噜66一区二区 | www日本xxxx| 灌满到腿抽搐合不拢BL总受 | 三级黄rlri看三级黄 | 大奶肥臀| 给我个可以免费看片的 | 免费视频大片在线观看 | 免费一区在线观看 | 亚洲黄色在线观看网站 | 超级H荡的辣文小说 | 玖玖精品视频 | 舌头伸进去添少妇好爽高潮 | 全免费a级毛片免费看视频免 | 最近免费中文字幕大全高清10 | 日韩三级一区二区三区 | 99视频在线精品免费 | 伊人久久综合成人网小说 | 国内精品久久久久久久999下 | 国产一区二区三区乱码在线观看 | 欧美v日本 | 天天久久综合网站 | 免费又粗又黄又爽又免费A片 | 国产成人AV一区二区三区无码 | 动漫美女的巨乳被揉胸 | 床戏吻戏裸戏视频超长 | 国产精品无码视频一区二区 | 日本a在线| 特黄A又粗又大又爽A片 | 精品亚洲卡一卡2卡三卡乱码 | 91制片厂制作果冻传媒八夷 | 黄色三级毛片 | 性一交一乱一优A片 | 强迫惨叫粗暴白浊囚禁bl | 国产在线视频区 | 少妇被又大又粗又爽毛片久久黑人 | 国产电影在免费播放在线观看 | 337日本| 精品国产露脸久久AV麻豆 | 色翁荡息又大又硬又粗肖艳 | 经典强奷系列人妻 | 欧美成人免费sss | 精品人妻无码一区二区三区婷婷 | 一本三道a无线码一区v小说 | H狠狠躁死你H视频A片 | 大片网站你懂得 | 草草视频手机在线观看视频 | 老王轻一点儿好爽在深一点 | 免费精品国产人妻国语色戒 | 国产免费福利在线视频 | 国产亚洲自拍一区 | 最近新韩国日本免费看 | 亚洲va欧美va | 无套内谢少妇毛片A片AV | 亚洲成人激情小说 | 国产AV一区二区三区日韩 | 四房播播开心 | 夜色贵族图片 | 粉嫩虎白扒开小泬 | 色综合天天操 | 丁香婷婷综合激情五月色 | 亚洲视频一区二区在线观看 | 欧美一区二区在线观看 | 一区二区三区国产亚洲网站 | 尹人成人 | 国产人妻人伦精品98 | 欧美日韩精品无码免费看A片 | 成人AV免费网址在线观看 | 亚洲一区免费看 | 日韩欧美一区二区无码免费 | 欧美黄片 | 人人澡 人人澡 人人看欧美 | 狠狠躁天天躁小说 | 中文字幕在线观看91 | 长泽雅美av | 久久国产精品无码视欧美 | 精品亚洲日韩国产一二三区 | 中文字幕乱码中文乱码777 | 国产无套内射久久久国产 | 午夜福利理论片高清在线 | 久久亚洲A片COM人成A | 日日夜夜狠狠 | 天堂网2014| 99在线视频精品费观看视 | 日本无码成人深夜无码 | 琪琪热码在线中文字幕 | 娇妻的呻吟梦颖完整版 | 欧美日韩色情FTP在线播放 | 九九国产在线 | 国产在线视频h | 黑人大棒日俄罗斯美女 | 草草视频手机在线观看视频 | 一本久到久久亚洲综合 | 久久精品18 | 中国黄色一级毛片 | 亚洲中文字幕一二三四区苍井空 | 国精产品999永久中国有限公司 | 极品夜夜嗨久久精品17c | 男女啪啪永久免费观看网站 | 亚洲最新在线 | 大战丰满老熟妇重囗味视频 | 免费国产黄网站在线观看动图 | 老司机精品福利在线资源 | 日韩欧美高清DVD碟片 | 色系工口里番大全全彩 | 夜夜撸.com | 九九精品免视看国产成人 | 中国黄色网址 | 欧洲不卡一卡2卡三卡4卡网站 | 看亚洲a级一级毛片 | 亚洲欧美精品一区天堂久久 | 中文日韩亚洲欧美制服 | 日日鲁鲁鲁夜夜爽爽狠狠 | 毛片在线网址 | 亚洲精品久久久久无码精品 | 国产午夜男女爽爽爽爽爽 | 99热.com | 欧美手机手机在线视频一区 | 簧片在线免费观看 | 一区二区视频在线观看高清视频在线 | 文中字幕一区二区三区视频播放 | 在线黄色网页 | 特级做A爰片毛片A片免费 | 久久在线视频免费观看 | 麻豆国产自制在线观看 | 91天堂| 亚洲在线中文无码首页 | 欧美高清老少配性啪啪 | 久久久久久久久久久久久久久久久久久久 | 抖音成长人版 V2.3.1 无限观看版 | 忘忧草社区在线日本韩国电影 | 在线不卡日本v二区 | 夜夜看电影网 | 色情无码WWW视频无码区下载 | 夜夜操com| 国产成人无精品久久久 | 宋徽宗是南宋还是北宋 | 日本一道人妻无码一区视频 | 少妇我被躁爽到高潮A片 | 久久久久综合网久久 | 青青草免费国产线观720 | 色网免费| 99re热视频 | 在线精品国产三级 | 国产午夜伦理 | 日本一品道无码免费专区在线观看 | 日韩欧美中文字幕在线播放 | 无人区乱码区1卡2卡三卡在线 | 五月综合激情婷婷六月 | 亚洲巨乳日本无码一二三区 | 扛起老师雪白双腿进入小说 | 国产v综合v亚洲欧美大片 | 五月天婷婷视频在线观看 | 国产二级一片内射视频播放 | 久久精品免观看国产成人 | 国产午夜男女爽爽爽爽爽 | 久久天天躁狠狠躁夜夜躁2014 | 亚洲精品久久久久久中文 | 国产福利在线看 | 美女h动态图 | 欧美一区二区视频在线观看 | 老司机午夜免费福利视频 | 免费视频久久 | 久久久999久久久精品 | 亚洲欧洲日产国无高清码图片 | 伦理片在线线看手机版韩国 | 国产精品自在拍在线播放 |