单词：uranous fluoride (uf4)
单词：uranous fluoride (uf4) 相关文章
Yussouf was a sheik. He was sitting at the door of his dent in the desert. It was night. Nothing was visible in the desert. The only light was the light that came from the starts in the sky. They were twinkling in the sky. The sheik was sad at heart.
英汉幽默故事选读
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel
Scientific American(十二)月
07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the
科技之光
Dogs and their owners go for the top prize at Crufts Seven of the top dogs have been chosen, but only one can be crowned best in show. One thing is certain-- Fur is going to fly. You've got seven of the best, out there. So it's like a top athelet go
万花筒2008年
Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗？ If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的，我想蛀了也没有关
口腔临床英语对话
by Michael W. Flynn First, a disclaimer: Although I am an attorney, the legal information in this podcast is not intended to be a substitute for seeking personalized legal advice from an attorney licensed to practice in your jurisdiction. Further, I
法律英语 Legal Lad
Yusuf Islam, formerly known as Cat Stevens, is a British musician, singer-songwriter and philanthropist. He has sold over 60 million albums worldwide in a career spanning five decades. He converted to Islam at the height of his fame in 1977. The foll
各国名人英文介绍
Crufts winner 2006. Picture courtesy of the Kennel Club of Great Britain Fireworks, music and theatre have been some of the ways in which the Chinese community in Britain has been celebrating the start of the Year of the Dog it has been quite a part
Take Away English
I love eating at all-you-can-eat buffets. It doesn't matter what kind of food it is, I'm up for it. Last week, I went to a high-end seafood buffet with my friends. We walked in and the hostess seated us at a table. She asked if we wanted to order any
地道美语播客
Today I had lunch at Jimmy Johns and noticed a sign on the wall that showed Warren Buffets list of 10 Rules. I was so moved by it that I had to change tables in the middle of my sandwich just to get a closer look. Is it any wonder that he is one of t
阅读空间
By Barbara Schoetzau New York 26 June 2006 The world's second wealthiest person, investor Warren Buffett, has announced he will give the bulk of his $44 billion fortune to a foundation run by the world's richest man, computer tycoon Bill Gates and h
2006年VOA标准英语（六月）
Millions of Americans Suffer From Hair Loss This is Science in the News, in VOA Special English. Im Shirley Griffith. And Im June Simms. Today we talk about hair. We will tell what hair is, how it grows, and some of the main reasons people lose it. H
2013年VOA慢速英语(五)月
A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti
VOA标准英语2010年(十)月
Undocumented Syrian Refugees Suffer Deprivation UmSteif Aysa al Fadil, a Syrian mother of eight, gathers khubays, a leafy green vegetable, on the scrap of land she now inhabits outside Kilis in southern Turkey. This plant, which she will boil and fee
VOA标准英语2013年(三月)
Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错，这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been
2018年科学美国人1月
SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo
科技之光
By Lisa Schlein Geneva 11 April 2007 The International Committee of the Red Cross says the suffering of civilians in Iraq is worsening. In a new report called Civilians Without Protection: The Ever-Worsening Crisis in Iraq , the Red Cross focusses on
2007年VOA标准英语（四月）
今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟
英语单词荟萃
I like to eat buffet so much, because I can taste so many food at the same time. There are all kinds of fruits, meat and ice cream, I like them all, so I have great motivation to eat buffet. Every time I eat buffet, I will eat as more as possible, be
英语作文
ROME, Oct. 10 (Xinhua) -- Italy and Juventus goalkeeper Gianluigi Buffon said on Sunday that he expects to return in January from his back injury. I think by January I should be ready to go again, he said. Buffon was replaced after the first half of
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