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

uzfxrgfq

12 Oct 2025(atualizado 12/10/2025 às 00h56)

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

Temas

Compartilhe

The_Overseas_Highway_The_US_floating_highway.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 mega sena dia 16.05.18its 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_Friends_and_Neighbors_review_Radically_different_from_any_other_show.txt

The_beloved_snack_of_wealth_made_on_Delhis_streets.txt moda e os enciclopédia enciclopédia.

GRáFICOS

nos eixos

Your lungs hold secrets about your health as you age – here's a simple test to check them.txt

The_Pacific_islands_that_dont_want_to_be_Hawaii.txt lazer e os abrangente foco.

Navegue por temas

The_Caribbean_islands_battling_the_regions_highest_murder_rate.txt The_European_nation_where_bears_roam_free.txt The_WW2_experiment_to_make_pigeon-guided_missiles.txt The_Lion_King_How_Mufasa_was_brought_to_life.txt The_aircraft_spiralled_downwards_tail_first_The_CIA_spy_shot_down_over_Russia_in_1960.txt The_aircraft_spiralled_downwards_tail_first_The_CIA_spy_shot_down_over_Russia_in_1960.txt The_Ukraine_war_has_been_a_disaster_for_Russia.txt The_Smashing_Machine_review_Dwayne_The_Rock_Johnson_is_Oscar-worthy_in_his_new_film.txt The_Outlander_effect_How_a_time-travel_romance_transformed_Scottish_tourism.txt The_Rings_of_Power_review_A_visually_staggering_flawed_epic.txt
国产一级一片免费播放i | 亚洲区色情区激情区小说公 | 女人下边被添全过程A片小说 | 欧美日韩精品久久久免费观看 | 精品日韩视频 | 蜜桃视频一区二区 | 国色天香精品一卡二卡三卡 | 色视频免费版高清在线观看 | 黄色网址免费观看视频 | 亚洲精品AV一区午夜福利 | 波多野结衣99 | 91精品国产91久久综合 | 日本一卡二卡三卡四卡无卡免费播放 | 亚洲AV无码专区国产精品麻豆 | 伊人中文字幕在线观看 | 边做边爱播放免费观看 | caoporn成人免费视频 | 福利视频入口 | 成人免费看黄 | 色综合天天娱乐综合网 | 99xxoo视频在线永久免费观看 | 福利在线国产 | 人成乱码一卡二卡三四卡五卡六卡 | 亚洲国产欧洲精品路线久久 | 最新影音先锋av资源台 | 国产手机在线国内精品 | 黄在线网站 | 美女裸身照(无内衣)动态图 | 一区二区免费播放 | 国产免费网站看v片元遮挡 国产免费区 | 九一精品| 欧美猛交XXX无码黑寡妇 | 99久久精品无码一区二区毛片 | 亚洲 日韩 国产 有码 不卡 | 在线观看精品自拍视频 | 免费看黄网址 | 亚洲 欧美 清纯 校园 另类 | 欧美黄网站 | 国产在线干 | 久久精品免费观看视频 | 我和岳疯狂性做爰全过程 | 精品成人网| 国产福利美女福利视频免费看 | 中国免费黄色片 | 黄色网点| 久久成人18免费网站 | 九九有点热 | 午夜插插插 | 亚洲精品天堂在线观看 | 天堂一区人妻无码 | 国产97人妻人人做人碰人人爽 | 国产成人片 | 国产丰满人妻一区二区三区 | 亚洲免费网 | 国产一卡2卡3卡4卡无卡免费网站 | 亚洲偷自拍国综合 | 五月网址| www久久精品 | 欧美91精品久久久久网免费 | 小说区图片区激情区视频区 | 免费又黄又爽A片免费看 | 日韩精品色情AV无码一区 | 成人午爽爽爽A片免费下载 成人午夜A片产无码免费视频日本 | 免费在线看污网站 | 又黄又爽又无遮挡在线观看免费 | 欧洲bbbbb | 亚洲AV永久综合在线观看尤物 | 中文字幕乱码免费视频 | 亚洲最大的成人网 | 涩涩快播| 国产美女在线一区二区三区 | 日本啊v在线观看 | 禁app下载站长统计网址进入 | 2024精品极品国产色在线观看 | 人人妻人爽A片二区三区 | 国精产品6666 | 97在线免费观看视频 | 国产精品综合AV一区二区国产馆 | 丁香五月网久久综合 | 亚洲国产精品嫩草影院在线观看 | 久久在精品线影院精品国产 | 欧美一级录像 | 在线观看v片免费视频 | 麻豆国产精品AV色拍综合 | 日韩天堂视频 | 99国产成人精品2021 | 日韩丝袜亚洲国产欧美一区 | 五月天色婷婷在线 | 亚洲自偷自拍另类图片二区 | 熟女人妻久久精品AV天堂 | 国产成人精品123区免费视频 | 99精品久久99久久久久久 | 午夜福利不卡在线视频 | 无码高潮又爽又黄A片日本动漫 | 老司机免费福利视频无毒午夜 | 亚洲精品第一国产综合野 | 狠狠的干狠狠的操 | 国产在线中文字幕 | 色婷婷综合激情视频免费看 | 免费A级毛片黄A片高清在线播放 | 精品欧美日韩一区二区三区 | 99在线视频免费观看 | 2021国产成人精品久久 | 国产三级精品三级在线观看 | 成人777777| 美女大乳图片 | 欧美成人国产一区二区 | 日本视频在线观看免费 | 狠狠综合久久久久综合 | 亚洲视频一区 | 真人性做爰无遮A片在线 | 国产精品久久久久久久专区 | 精品一区二区三区免费毛片 | 欧美最猛黑人AAAAA片 | 老太婆xxx | 日韩精品综合 | 欧美劲爆婷婷五月久久 | 国产免费看插插插视频 | 四虎影在永久在线观看 | 99视频免视看 | 亚洲AV久久久噜噜噜久久 | 波多野结衣中文字幕一区 | 日日摸夜夜添夜夜添亚洲女人 | 欧美第一视频 | 成人又色又爽的免费网站 | 亚洲欧美丝袜制服 | 黄色网址视频在线播放 | 亚洲国产毛片 | 日日碰狠狠躁久久躁96 | 国产 高速 亚洲 欧美 在线 | 午夜爱爱免费视频体验区 | 成人禁片免费播放35分钟 | 99国产在线精品观看二区 | 大山里真实刮伦小说 | 最好的免费电影网站 | 性欧美FREE少妇XXX | 性做爰添lBB视频免费下载 | 午夜毛片视频高清不卡免费 | 乱理片 最新乱理片2024 | 在线视频色在线 | 国产一区欧美二区 | 色狠狠干 | 欧美日韩一区二区三区免费不卡 | 色久久| 63jjj全国最大 | 国产在线精品一区二区在线看 | 我们的生活第七季在线观看免费高清 | 在线观看特色大片免费网站 | 99看视频| 国精产品888 | 麻豆精品一区二正一三区 | 亚洲第一免费播放区 | 欧美97欧美综合色伦图 | 天堂在线www网亚洲 天堂在线v | 欧美AAAAAA片黑寡妇 | 爱久久AV一区二区三区色欲 | 亚洲精品一区二区三浪潮AV | 中国一级毛片特级毛片 | 日韩在线视频观看在线看 | 精品香蕉99久久久久网站 | 国产女高清在线看免费观看 | 中文区中文字幕免费看 | 大片成人版 | 一级毛片免费毛片毛片 | 亚洲第一天堂网 | 91情国产l精品国产亚洲区 | caoporn视频| 老狼影院成年女人大片 | 欧美XXXXX无码黑寡妇 | 激视频小说区在线观看 | 第四色网站最新地址 | 国产三级精品在线 | 日日噜噜夜夜狠狠久久丁香婷婷 | 国产三级小视频 | 狠狠撸 撸你喜欢 | 国产黄色在线免费观看 | 国内精品乱码卡一卡2卡 | chinese老太交视频在线观看 | 亚洲A片V一区二区三区有声 | 在线不卡日本v二区 | 久久久久久久久久免免费精品 | 国产小情侣自拍 | 在线观看高清黄网站免费 | 波多野结在线 | 欧美亚洲国产专区在线app | 国产精品伦理久久久久久 | 九九亚洲精品 | 最近中文字幕完整在线看一 | 做爰全过程免费的视频在线观看 | 国产亚洲精品久久久久久国 | 国产精品久久久 | 她的两片蚌肉张开白浆直流 | 久久国产精品一国产精品金尊 | 蜜芽国精产品一二三产区 | 久久精品视频在线直播6 | 欧美三级在线电影免费 | 国产com| 午夜性啪啪A片免费播放 | 99久久精品国产国产毛片 | 成熟交BGMBGMBGM日本 | 99热最新网址 | 中文字幕亚洲视频 | 你懂的在线观看视频 | 国产成人A片免费观看 | 国产精品久久久久久亚洲影视 | 日本一区二三区好的精华液 | 亚洲精品色情APP在线下载观看 | 99在线视频精品费观看视 | 四虎影视永久免费观看网址 | www.av在线.com | 一级毛片人与动免费观看 | 国产一区亚洲二区三区毛片 | 欧美日韩精品一区二区在线播放 | 久久综合给合久久狠狠狠97色69 | 久青草国产在视频在线观看 | 日本无码免费AAAAAA片 | 亚洲一区二区三区秋霞秋理 | 国产720刺激i在线视频 | 无限免费动漫看片的视频 | 亚洲欧美日韩国产一区图片 | 老湿免费体验区 | 97精品国产福利一区二区三区 | 最近中文字幕手机大全 | 日韩色影院 | 午夜影院a级片 | 就去色成人网 | 天天操天天干视频 | 久久午夜影院 | 激情五月综合婷婷 | 黄色字幕网 | 精品网站一区二区三区网站 | 国产精品青青在线麻豆 | 亚洲精品大片 | 亚洲高清在线视频 | 免费日产乱码卡一卡2卡三卡四 | 欧美日韩v| 日本亚欧热亚洲乱色视频 | 日韩精选| 91网站免费看 | 精品国产自在现线拍一本 | 亚洲视频无码高清在线 | 成人电影在线观看热 | 午夜免费看视频 | 日本三级韩国三级欧美三级 | 风韵人妻丰满熟妇老熟女 | 99久久精品免费国产一区二区三区 | 国产成人免费 | 天天拍拍国产在线视频 | 欧美色婷婷天堂网站 | 99精品免费久久久久久久久蜜桃 | 人人澡人人澡人人看青草 | 亚洲欧洲国产成人综合一本 | 亚洲国产无线乱码在线观看 | 国精品人妻无码一区二区三区喝尿 | 国产亚洲精品久久久久久移动网络 | 好紧好湿太硬了我太爽了文字 | 日本三级大乳舌吻 | 99久久精品全部 | 精品卡一卡二卡三国色天香 | 国产一级不卡毛片 | 久久久九色综合亚洲成色777 | 91情国产l精品国产亚洲区 | 男女高潮又爽又黄又无遮挡 | 99re只有精品| 向井杏 | 伊人大蕉综合网站亚洲最大 | 亚洲图片偷拍图自拍97 | 操亚洲 | 丰满少妇69激懒啪啪无码 | 美女把尿口扒开让男人桶 | 在线看h片| 搡老女人免费视频 | 久久久久久a亚洲欧洲aⅴ | 九色综合亚洲色综合网 | 日韩人妻无码精品A片免费不卡 | 99国内精品久久久久久久 | 天天影视色香欲综合视频 | 最近中文字幕在线中文视频 | 日韩国产免费一区二区三区 | 亚洲中文无码永久在线 | 日本久久综合视频 | 精品一区二区三区免费毛片爱 | 亚洲第二页 | 老妇乱子伦视频国产 | 日韩精品亚洲专区在线影院 | 天天干天天舔 | yellow字幕中文在线观看 | 妺妺窝人体色20242024野大粗 | 国产激情视频在线观看首页 | 亚洲 欧美 国产 图片 | 国模私拍高清大胆 炮战 | 亚洲一区二区三区成人 | 国产亚洲精品久久久999蜜臀 | 欧美阿v视频在线大全 | 黑人大操白富美 内射 | 最近最新最好的2018中文字幕 | 真人做爰片免费视频毛片中文 | 最近中文字幕完整在线看一 | 妺妺窝人体色20242024野大粗 | 樱花草WWW在线视频播放 | 四虎影视成人永久免费观看视频 | 午夜精品一区二区三区在线观看 | 2024久久精品免费观看 | 日日摸天天爽天天爽视频 | 91视频你懂的 | 性插动态图第139期百度 | 好看的网站 你懂的 | 亚洲AV无码A片在线观看蜜桃 | 99精品电影一区二区免费看 | 91福利国产在线观看一区二区 | 色综合婷婷 | 最刺激的长篇乱惀小说 | 国产精品日本欧美一区二区 | 羞羞影院男女爽爽影院尤物 | 免费黄色网址在线播放 | 髙清国产性猛交XXXAND | 免费被黄动漫网站在线无网观看 | www.四虎.com| 一本在线不卡免费观看 | 免费国产凹凸在线视频 | 日本免费一曲二曲三曲 | 国产三级在线观看专区 | 国产v69| 国产精品乱码一区二三区 | 高清欧美日韩一区二区三区在线观看 | 美女爽到嗷嗷嗷叫 | 人人看人人爽 | 国产一区二区三区在线看片 | 粗好大用力好深快点漫画 | 小莹的性荡生活45章最新章节 | 色97色 | 国产日产久久 | 又大又爽又黄无码A片小说 又大又硬又粗做大爽A片 | 国产福利在线观看片 | 看亚洲人配人配人种jizz | 亚洲精品无码成人A片在 | 91精品福利久久久 | 亚洲中文久久精品AV无码 | 国产在线视频资源 | 彩途| 国产成人久久婷婷精品流白浆 | 色性欧美 | 他的手抓住了我的小兔子视频 | 四虎一区二区成人免费影院网址 | 肉肉高文干翻天 | 老司机深夜福利在线观看 | 亚洲欧美视频 国内自拍 | 99久久999久久久综合精品涩 | 欧美日韩免费一区高清 | 久热香蕉在线爽青青 | 最新色网址| 婷婷狠狠 | 狠狠干狠狠操在线视频 | 免费国产美女爽到喷出水来视频 | 福利网址在线 | 国产人妻丰满熟妇嗷嗷叫 | 国产熟妇另类久久久久婷婷 | 色天天久久| porn在线视频一区二区 | 公交车上荫蒂添的好舒服的电影 | 亚洲逼| 国产午夜精品不卡视频 | 午夜精品久久久久 | 国产亚洲精品久久久久婷婷瑜伽 | 亚洲欧美一区二区三区不卡 | 国产午夜精品AV一区二区 | 久久午夜伦理 | 国产精品人妻无码免费久久一 | 99re在线视频免费观看 | 最近更新中文字幕 | 亚洲国模私拍人体gogo | 老太婆xxx | 精品91精品91精品国产片 | 波多野结衣免费线在线 | 亚洲欧美手机在线观看 | 一区二区三区影视 | 96精品国产高清在线看入口 | 色琪琪丁香婷婷综合久久 | 91精品中文字幕 | 精品中文字幕久久久久久 | 91香蕉成人免费高清网站 | 日韩AV在线兔费看 | 啊灬啊别停灬用力啊动态图 | 男主开会桌下被C得合不拢H | 亚洲中文字幕日本在线观看 | 无码日本精品一区二区三 | 久久国产一区二区 | 么么哒日本影院 | 国产视频手机在线 | 精品午夜一区二区三区在线观看 | 我们的生活第七季在线观看免费高清 | 91免费看片 | 国产综合一区二区三区 | 中文字幕一区精品欧美 | 成年黄网站在线观看免费 | 最新国产在线 | 午夜免费无码福利视频麻豆 | 人人搞人人| 国产高清免费观看 | 国产成人精品123区免费视频 | 亚洲AV狠狠爱一区二区三区 | 久久精品中文字幕第一页 | 成人欧美一区二区三区A片 成人色网 | 亚洲精品久久无码一区二 | 玖玖玖视频在线观看视频6 玖玖玖免费观看视频 | 色爽黄1000部免费软件下载 | 水蜜桃视频免费观看视频 | hd成人免费电影 | 日本亚洲欧洲色情 | 日韩欧美一级 | 免费网站高清在线观看视频 | 亚洲欭美日韩颜射在线二 | 久久久GOGO无码啪啪艺术 | 日韩特级毛片免费观看视频 | 欧美高清在线视频一区二区 | 中文字幕亚洲精品久久AV | 婷婷午夜天 | 公和我做爽死我了A片N | 久久久久国产精品免费 | 亚洲精品www | 免费v片在线看 | 免费精品国偷自产在线读大二 | 欧美又大又粗又湿A片 | 久久精品5| 日本高清免费毛片大全 | 中国人xxxxbbbb国产 | 与女乱小说目录伦下载 | 中文字幕乱码日本高清在线 | 最好看的免费观看高清电影 | 天天摸夜夜添夜夜添A片小说 | 亚洲精品久久国产高清 | 99久久国产免费 - 99久久国产免费 | 国产一卡 二卡三卡四卡无卡乱码视频 | 日韩视频精品 | 男人的天堂AV亚洲一区2区 | 日b在线观看 | 三级黄rlri看三级黄 | 成人免费久久精品国产片久久影院 | 色情A片成人网站免费看 | 午夜影片| 国产一二三 | 亚洲免费网址 | 好硬啊进得太深了A片无码视频 | 不良女警免费看 | 国产色情伦在线观看 | 97 在线播放 | 黄色在线免费 | 午夜性啪啪A片免费播放 | 亚洲性夜色噜噜噜在线观看不卡 | 精久久| 午夜AV亚洲一码二中文字幕青青 | 久久综合给合久久狠狠狠97色 | 午夜视频欧美 | 黑人巨茎大战欧美白妇 | 精品国产三级a | 日韩精品视频在线播放 | 91极品视频 | 乱码一二三入区口 | 国产乱轮| 中文字幕乱码高清完整版 | 最新中文字幕免费视频 | 欧美日韩久久 | 亚洲高清无码加勒比 | 花房姑娘HD版在线观看 | 久久久噜噜噜久久久 | 乱理片 最新乱理片2024 | 99久久综合国产精品免费 | 久操亚洲 | 五月天婷婷视频在线观看 | 免费看日b视频 | 天天草天天 | 国产精品爽爽久久久久久竹菊 | 亚洲一区二区在线视频 | 亚洲欧美综合日韩字幕v在线 | 美国一级毛片免费看成人 | 三级视频网址 | 国产精品看高国产精品不卡 | 日本久久精品免视看国产成人 | 老司机免费午夜精品视频 | 黄视频在线免费看 | 亚洲国产聚色窝 | 狠狠干狠狠操在线视频 | 日韩一区精品视频一区二区 | 高清国产精品久久 | 欧美激情视频一区二区免费 | A片日本人妻偷人妻人妻 | 精品无码国产自产野外拍在线 | 伊人久久大香线蕉免费视频 | 日本三级黄网站 | 一女多男np高辣文h 一女多男nP现代高H | jizzjizzjizz丝袜老师 | 99无码熟妇丰满人妻啪啪 | 狠狠色丁香久久综合婷婷 | 在线视频激情 | 国产一二三区有声小说 | 偷国精产品久拍自产 | 国产看色免费 | 水蜜桃传媒科技有限公司网站 | 欧美一区二区三区成人看不卡 | 欧美一级久久久久久久久大 | 亚洲天堂在线观看完整版 | 色综合久久精品亚洲国产 | 亚洲麻豆国产精品 | 中文国产成人精品久久app | 少妇性夜夜春夜夜爽A片 | 久久婷婷五月综合色国产 | 久久久麻豆 | 日本高清www视频在线观看 | 最近更新中文字幕2018全集免费 | 欧美videos超乳巨大 | 国产一卡2卡3卡4卡无卡免费网站 | 色色嘻嘻嘻 | 4438成人情人网站 | 日韩欧美综合AV久久一区 | 色吧网| 天美MD豆传媒一二三区进 | 毛片免费毛片一级jjj毛片 | 中文字幕在线视频精品 | 免费无码又爽又黄又刺激网站 | 福利姬视频在线观看 | 国产亚洲精品久久久久久鸭绿欲 | 国产人成精品香港三级古代 | 国产成人18黄网站免费 | 欧美日韩永久久一区二区三区 | 波多野结衣一区二区三区四区 | 99re九精品视频在线视频 | 刮伦欲罢不能 | 少妇VIDES裸体BBWWHD | 九九九九热 | 老司机午夜剧场 | 国产福利美女福利视频免费看 | 狠狠色噜噜狠狠狠狠奇米777 | 黄色网点| 女人做爰的全部过程A片 | 丰满少妇乱A片无码 | 天天拍夜夜操 | 日本高清在线观看视频 | 久久久影院亚洲精品 | 色情播播 | 最新日本中文字幕 | 91精品一区二区三区在线播放 | 大黄免费网站 | 黄视频网站在线看 | 午夜福利合集1000在线 | 欧美黄色三级 | 免费又色又爽又黄的小说软件 | 日韩中文字幕视频 | 中文字幕 无码亚洲 | 一本三道a无线码一区v小说 | 视色视频 | 国产极品美女视频福利 | 天天躁天天狠天天透 | 九九九九精品视频在线播放 | 色翁荡熄76篇 | 亚洲 日韩 国产 有码 不卡 | 亚洲欧美日韩中文综合v日本 | 久久精品视频6 | 无码激情全黄做爰片 | 亚洲精品国产精品乱码不卡 | 欧美高清视频在线高清观看 | 国产国产人精品视频69 | 亚洲一级电影 | 香蕉伊人不卡在线看 | 天堂在线资源最新版 | 欧美特级限制片高清 | 成人无码区免费A片WWW | 青青青在线视频国产 | 国产入口在线观看 | 人妻被粗大猛进猛出69国产 | 国产精品大尺度尺度视频 | 成人天堂婷婷青青视频在线观看 | 影音先锋电影三级伦理 | 四房网 | 国产精品久久久久久久久软件 | 四虎影视影院手机在线看 | 日日夜夜精品免费视频 | 亚洲精品无码一区二区三区仓井松 | 久久黄色免费网站 | 嫩小xxxxbbbb| 亚洲精品一区二区三区四区五区 | 91成人午夜在线精品 | 色无五月| 国产精品久久久久久久午夜片 | 中文字幕高清免费不卡视频 | 国产人妻精品久久久久久很牛 | 99国产精品人妻无码网站 | 亚洲中文字幕永久在线全国 | 亚洲一区黄色 | 黄色一级视频在线播放 | 亚洲国产美女视频 | free性欧美18 19 | 日本午夜精品久久久无码 | 免费国产黄网站在线看品善网 | 成人YY视频在线观看 | 偷拍自怕亚洲在线第7页 | 国产免费午夜a无码v视频 | 杨门女将肉艳史k8播放 | 最新无码国产在线视频9299 | 日日噜噜夜夜狠狠视频buoke | 日本黄色aa| 国产又色又爽又黄的视频免费观看 | 日本人jizz | 最近韩国日本免费观看高清 | 特级毛片免费观看视频 | 午夜福利在线电影视频 | 国产成人无码免费看片色哟哟 | 日韩伦理片在线 | 爱操综合 | 又硬又粗进去好爽A片免费多人玩 | 国产一级视频免费 | 中文字幕一区二区在线播放 | 美景之屋4在线 | 欧美日日夜夜 | 欧美jizzhd精品欧美高清 | 噜噜噜在线观看播放视频 | 99视频在线观看视频 | 国产成人精品久久综合 | 亚洲国产精品久久久久网站 | 国产A级毛片色咪味 | 九七电影院成人理论A片 | 国产精品人人爽人人做我的可爱 | 2018年亚洲欧美在线v | 欧美日韩精品一区二区三区四区 | 公交车上荫蒂添的好舒服口述小说 | 国产精品久久久久免费视频 | 亚洲伦理在线观看 | 国产精品久久福利新婚之夜 | 被两个同桌绑起来玩乳动态gif | 国产a级精品特黄毛片 | 曰本道久久综合久久爱 | 狠狠色噜噜狠狠狠狠色综合网 | 日韩欧美中 | 2021国产精品一卡2卡三卡4卡 | 国产精品久久无码人妻一区二区 | 天堂8资源在线官网资源 | 男男女女爽爽爽视频免费 | 久久99精品久久久久久秒播放器 | 色情综合另类小说图片 | 拍戏被CAO翻了H | 人人艹人人 | 久99久爱精品免费观看视频 | jizz日本老师 | 久久99精品久久久久久噜噜 | 在线看免费无码A片视频 | AV亚洲产国偷V产偷V自拍 | 欧美乱妇15p辣图 | 午夜黄色一级片 | 亚洲AV国产精品无码A片 | 亚洲AV无码区在线观看东京热 | 免费国产凹凸在线视频 | 国产免费观看黄A片又黄又硬小说 | 天津稀有金属交易市场 | 日韩精品小视频 | 国产日韩久久 | 巨人精品福利官方导航 | 性午夜影院| 狠狠色网 | 亚洲综合AV久久国产精品凡士林 | 欧美色图天堂网 | 成人18在线视频播放 | 天天操夜夜操天天操 | 成人色网站 | 污污在线网站 | 狠狠骚 | 黑人巨大进入白人美女视频 | 国产真实乱子伦新视频 | A卡一卡二乱码新区免费 | 欧美可以直接看的A片 | 中文在线资源链接天堂 | 黄色一级片在线免费观看 | 又硬又粗进去好爽A片 | 电影 国产 偷窥 亚洲 欧美 | 日韩av吉吉 影音先锋 | 亚洲大片在线观看 | 国内自拍99 | 99精品久久99久久久久久 | 日本巨大超乳在线播放 | 亚洲男人97色综合久久久 | 精品视自拍视频在线观看 | 久久re视频这里精品一本到99 | 老师的丰满大乳奶水在线观看 | 免费观看又色又爽又黄的校园 | 五月色婷婷中文开心字幕 | 国产一区二区三区免费大片天美 | 手机在线看黄 | 算你色永久免费视频播放 | 一区二区三区好的精华液杨朝越 | 99无码熟妇丰满人妻啪啪 | 亚洲日本高清成人aⅴ片 | 色四房| 一级欧美在线的视频 | 一女多男nP现代高H 一区二区三区好的精华液杨朝越 | 脱女学小内内摸出水网站免费 | 欧美日韩视频一区二区三区 | 女人让男人捅30分钟 | 免费国自产拍精品视频 | 99视频精品全部免费 在线 | 性色欧美| 蝌蚪免费视频 | 高清不卡伦理电影在线观看 | 国产一区二区内射最近更新 | 麻豆精品一卡二卡三卡 | 91精品91| 免费啪视频观试看视频软件 | 精品一区二区三区在线成人 | 久久精品国产99久久99久久久 | 黄频网站在线观看视频 | 免费伊人网 | 男女一边摸一边做爽爽的免费文字 | 亚洲欧美韩国综合色 | 国产一区二区在线观看视频 | 樱花草免费视频在线观看WWW | 中年国产丰满熟女乱子正在播放 | 国产精品香蕉视频在线 | 美女网站免费福利视频 | 在线看b| 九九九九视频 | 日本一区二区三区不卡在线看 | 95国产精品人妻无码久 | 在线免费观看国产视频 | 91天堂| 精品国产乱码久久久久久小说 | 中国一级毛片国产高清 | 欧洲三级视频 | 一个人看的免费视频www免费 | 国产亚洲天堂 | 欧美v片 | 香蕉久久夜色精品国产尤物 | 欧美在线视频一区 | 亚洲日本va中文字幕久久 | 日本成人一区二区 | 亚洲97| 美国一级毛片视频 | 中文字幕一区在线播放 | 亚洲视频久热九色视频 | 又污又黄又无遮挡网站 | 国产无遮挡又黄又大又爽在线观看 | 黄视频在线免费看 | 国产成人高清亚洲一区app | 亚洲网站大全 | 色综合久久手机在线 | 日本三级免费片 | 欧美福利视频网 | 苍井空大尺寸视频大全 | 少妇性L交大片免 | 亚洲精品偷拍AV一区二区 | 国产AV无遮挡喷水喷白浆小说 | 一级毛片完整版免费播放一区 | 国产三级精品三级在线观看 | 日韩专区在线播放 | 青青青国产免费线在 | 国产精品20247人妻精品冫 | 久久免费视频3 | 日本六十路无码熟妇交尾 | 国产婷婷色综合AV蜜臀AV | 久久国产精品高清一区二区三区 | 欧美一级片在线视频 | 日本免费专区在线观看中破初 | 九九久久香港经典三级精品 | 国产一级不卡毛片 | 国产成人精品高清在线观看99 | 小黄文纯肉短篇 | 人人搞人人 | 99国产亚洲精品无码成人 | 日韩成人高清 | 全黄H全肉短篇禁乱NP | 一级毛毛片毛片毛片毛片在线看 | 最近日本韩国观看 | 国产福利91 | 欧美xxxx做受视频 | 草草影院 国产 日本 | 国产乱码卡1卡二卡3卡4卡5 | 国自产拍偷拍精品啪啪色 | 影音先锋2024av资源网 | 激情内射亚州一区二区三区爱妻 | 四虎最近网站是多少 | 国产毛片又爽又大A片 | 色综合久久88色综合天天提莫 | 欧美一级va在线视频免费播放 | 日本三级韩国三级香港三级网站 | 欧美亚洲国产免费高清视频 | 午夜视频在线观看国产 | 久久波多野结衣 | 五十六十熟女猛烈交尾A片一 | 久久精品WWW人人爽人人 | 国产在线一卡 | 簧片在线免费观看 | 欧美精品色婷婷五月综合 | 天美传媒影视在线网址 | 日韩欧美中文字幕在线播放 | 亚洲欧美一区二区三区九九九 | 99久视频| 亚洲欧美日韩国产另类电影 | 国产一区欧美二区 | 苍井空a v免费视频 苍井空a 集在线观看网站 | 真实国内老女人的露脸视频 | 日本免费专区在线观看中破初 | 黄篇网站在线观看 | 精品国产青草久久久久福利 |