[建] 氟化锰(III)

SSS 2010-12-29

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

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Dental Health

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

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科技之光

跟艾米莉一起学口语第110期:遗憾的是

It is a pity that... 遗憾的是可怜的是例句： It is a pity that my parents can't come with me and see such a beautiful scenery. 遗憾的是我父母没有和我一起来，也看不到这样美丽的景色。 It was a pity that you missed t

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跟艾米莉一起学口语

口腔临床英语对话第29期:正畸治疗(2)

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

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口腔临床英语对话

VOA标准英语2010年-Coal Burning Linked to Fluoride Diseas

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

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VOA标准英语2010年(十)月

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Food Manga: Where Culture, Conflict And Cooking All Collide STEVE INSKEEP, HOST: And I'm Steve Inskeep with one sure way to learn something about an overseas culture - learn about its food. This installment of Hidden Kitchens takes us to Japan. In pa

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科学美国人60秒 SSS 海狸牙齿的奥秘

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

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2018年科学美国人1月

SCIENCE IN THE NEWS - Dental Health

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

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Dominican Republic, Haiti join hands to uproot cholera

SANTO DOMINGO, Jan. 11 (Xinhua) -- The Dominican Republic and Haiti Wednesday launched a joint plan aimed at eliminating cholera, which has claimed more than 7,000 lives in both countries since October 2010. The efforts were backed by the World Healt

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学个词 Learn a Word-VOA英语教学 2280-fluoride

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

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Todd: Ah, Kawabe, (Yes, Sir) You are Japanese, so can you explain manga? And what is Manga? And why is it so popular? Kawabe: OK, it's a diff...it's easy, but difficult question. (Yeah). OK, manga is the, is the drawing with the story. Todd: Uh-huh!

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Ruth: So, Tres, you read a lot of comics. Don't you find them really violent in Japan? Tres: Yeah, there are violent comic books. There are sexy comic books. There are comic books I wouldn't show to my grandmother. Ruth: But compared to the comic boo

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Joel: So, anyway, you talked about city hunter. That's a Japanese comic? OK, tell me about that? Tres: I really don't remember much. It was some guy that was wanted, I guess for murder, I don't think he really did it. I think. I'm not sure. But, yeah

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原版英语对话1000个

原版英语对话1000个:333 The Messenger

Todd: Um , Kawabe you said you used to be a bike delivery person. Kawabe: Yes, I was. It was not very long but I was doing that for like 6 months. Todd: Do you mean push bike or motorcycle? Kawabe: Push bike? What is a push bike? Todd: Push bike is l

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Todd: Um , Kawabe you said you used to be a bike delivery person. 托德：川边，你说过你曾经做过骑单车送货的工作。 Kawabe: Yes, I was. It was not very long but I was doing that for like 6 months. 川边：是啊，我做过。我做

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实战口语情景对话第303期:Manga 漫画

Todd: Ah, Kawabe, (Yes, Sir) You are Japanese, so can you explain manga? And what is Manga? And why is it so popular? 托德：川边，（是，先生）你是日本人，你能说明一下漫画吗？什么是漫画？它为什么这么受欢迎？

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01. I am a big fan of Hayao Miyazaki. 我是宫崎骏的超级粉丝。 02. I think his animated films are the best. 我觉得他拍摄的动画片最棒。 03. I want to buy a DVD collection of all Miyazaki's works. 我想买一套收集了宫崎骏所

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