氟化钙型陶瓷

VOA慢速英语20061227b

VOICE ONE: I'm Steve Ember. VOICE TWO: William Wilhelmi's porcelain cowboy boots And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the Smithsonian American Art Museum in Washington, D

发表于:2018-11-27 / 阅读(485) / 评论(0)

2006年慢速英语(十二)月

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

发表于:2018-12-02 / 阅读(159) / 评论(0)

Scientific American(十二)月

Can't She Type?

Lesson 38 Text A Can't She Type? The well-known banker, T. J. Ellington, was at one time in his younger days the manager of a New York office. His secretary had been with him for many years, and knew

发表于:2018-12-02 / 阅读(277) / 评论(0)

初级口语教程

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

发表于:2018-12-07 / 阅读(120) / 评论(0)

科技之光

Lesson 86 What's Your Blood Type?

Bella: What's your blood type, Luke? Luke: It's A, I think. Why do you ask? Bella: Well, mine's B. Luke: So? Bella: They say people with A blood type get along very well with those with B blood type. Luke: Really? 你是什么血型? 贝拉：卢克，

发表于:2018-12-08 / 阅读(452) / 评论(0)

赖世雄初级美国英语

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

发表于:2018-12-27 / 阅读(147) / 评论(0)

口腔临床英语对话

知性英语－DIFFERENT TYPE OF TEA

发表于:2019-01-02 / 阅读(244) / 评论(0)

知性英语

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

发表于:2019-01-14 / 阅读(130) / 评论(0)

VOA标准英语2010年(十)月

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

发表于:2019-01-20 / 阅读(129) / 评论(0)

2018年科学美国人1月

邀请函参考范文

邀请函参考范文 LETTER OF INVITATION Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. Were one of the manufacturers specialize

发表于:2019-01-21 / 阅读(137) / 评论(0)

实用英语

展会英语邀请函参考范文

LETTER OF INVITATION Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. Were one of the manufacturers specialized in sanitaryware, con

发表于:2019-01-21 / 阅读(115) / 评论(0)

实用英语

神探夏洛克第一季第二集_7

神探夏洛克第一季第二集_7 你知道这谁画的么我认得这颜料 Know the author? I recognise the paint. 像密歇根产的喷力强劲 It's like Michigan...hard-core propellant. 我猜含锌 I'd say zinc. 那个符号呢你认识么

发表于:2019-01-28 / 阅读(257) / 评论(0)

神探夏洛克第一季

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

发表于:2019-01-30 / 阅读(129) / 评论(0)

科技之光

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

发表于:2019-02-02 / 阅读(123) / 评论(0)

英语单词荟萃

展会英语辅导：邀请函参考范文

展会英语辅导：邀请函参考范文 LETTER OF INVITATION Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. Were one of the man

发表于:2019-02-02 / 阅读(147) / 评论(0)

实用英语

2012春季广交会英文邀请函

2012-111th China Commodity Fair China Import and Export Fair CHINA IMPORT AND EXPORT FAIR ---- Asia Exhibition Show Time: April 15, 2012 - May 05, 2012 Exhibition Address: Pazhou Exhibition Center, Guangzhou, China Exhibition Location: All for foreig

发表于:2019-02-02 / 阅读(119) / 评论(0)

实用英语

广交会英文邀请函参考范文

Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. 广交会英文邀请函范文 Were one of the manufacturers specialized in sanitar

发表于:2019-02-02 / 阅读(147) / 评论(0)

实用英语

2012年广交会邀请函英文

发表于:2019-02-11 / 阅读(123) / 评论(0)

实用英语

Senior leader urges to boost red tourism

NANCHANG, Feb. 28 (Xinhua) -- Senior Chinese official Li Changchun has called for efforts to boost tourism in the country's sites of revolutionary history. Li, a member of the Standing Committee of the Political Bureau of the Communist Party of China

发表于:2019-02-18 / 阅读(130) / 评论(0)

英语新闻

赖世雄进阶英语词汇3500 Unit69

heading n.标题，书名 What's the heading of that article you mentioned? 你提到的那篇文章标题是什么？ headline n.(报纸）标题 The financial scandal has been in the headlines for weeks. 这则财经丑闻被媒体大肆报导了好几

发表于:2019-03-17 / 阅读(336) / 评论(0)

赖世雄进阶英语词汇3500

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学英语单词

a-gardner

Aureolaria virginica

automated stock control

axial ring

axle drive bevel gear