氟氧化硒

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(228) / 评论(0)

Scientific American(十二)月

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(173) / 评论(0)

科技之光

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(204) / 评论(0)

口腔临床英语对话

OxyContin Warning

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson （Start at 1'02

发表于:2019-01-02 / 阅读(206) / 评论(0)

科技之光

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(176) / 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

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2018年科学美国人1月

英语博客(A cup of English):083 A Foxy Chick.

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(183) / 评论(0)

英语博客 A cup of English

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(179) / 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(177) / 评论(0)

英语单词荟萃

音乐咖啡厅:One Day-Sissel

歌曲:One Day 歌手:Sissel 专辑：all good things Here I am, on my own again All alone but not afraid Here I stand, nowhere near the end Time to go a different way Cause another day will come to those who dare Believe in something new When you follow y

发表于:2019-02-02 / 阅读(300) / 评论(0)

音乐咖啡厅

音乐咖啡厅:透明澄净淡雅忧伤的夏之雪Summer Snow--Sissel

Sissel就不多说，被誉为悬在空中的声音，Sissel的声音，宛如初春午后的微风般的没有负担，亦好比早晨小草上的露水清新脱俗. 本专辑是 Sissel 和Zamfire 共同打造，其中的人声和排箫相得益彰,summer snow（夏之雪）原是一首苏格兰民谣，改编成堂本刚与广末凉子主演日

发表于:2019-02-02 / 阅读(225) / 评论(0)

音乐咖啡厅

音乐咖啡厅:Weightless天籁之音-Sissel

歌曲：Weightless 歌手：Sissel 歌词制作：bottleneck All of my life I have been waiting Wondering what I will do All I can feel Is my heart beating Time and time again for you And Im weightless, falling in love I am weightless And I dont know why but

发表于:2019-02-02 / 阅读(253) / 评论(0)

音乐咖啡厅

音乐咖啡厅:keep falling down-Sissel

Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年。《All Good Things》是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想到Enya一类的音乐元素，但歌曲编排都渗入了具备时代感的流行曲节奏。唯一真正保留Sissel原来风格的，或

发表于:2019-02-02 / 阅读(246) / 评论(0)

音乐咖啡厅

音乐咖啡厅:Carrier Of A Secret-Sissel

发表于:2019-02-02 / 阅读(274) / 评论(0)

音乐咖啡厅

2007年VOA标准英语-Oxycontin Manufacturer Lied About Dangers of Dr

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(233) / 评论(0)

2007年VOA标准英语（五月）

Natalie Jeremijenko:转换生态思想的艺术

Natalie Jeremijenko的不寻常的研究室将艺术用于实践，处理环境问题，通过将工程知识同社会大众艺术以及一些志愿者们相连接。这些现实生活中的艺术实践包括：遛蝌蚪，给鱼发短信，建立消防

发表于:2019-02-05 / 阅读(328) / 评论(0)

TED公开课:艺术与幻觉

英语博客(A cup of English):Vaccines for Foxy.

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(205) / 评论(0)

英语博客 A cup of English

听歌学英语:Some one like you-Sissel Kyrkjebo

听歌学英语:Some one like you-Sissel Kyrkjebo Sissel Kyrkjebo是挪威著名的女歌手，于1969年出生于挪威，4岁时就参加儿童合唱团，并开始在挪威电视台多次露面。她从16岁出第一张唱片，以其空灵清澈的

发表于:2019-02-08 / 阅读(205) / 评论(0)

听歌学英语

音乐咖啡厅:Stan Walker - Whakamoemiti

Whakao loonal Kidei downni wha dei evi nayet Er gorlay wally wally ay Moe dei woonoah Tar dei arh tzoo waah Yee har naah Gorli goo gorli goo Dei gar lee whaka woo gar Dei hoa kaar Wo dei arh tsee whoa Arh tsee whoa Dei bi yee naah Koi lar Koi lar dei

发表于:2019-02-17 / 阅读(239) / 评论(0)

音乐咖啡厅

听歌学英语:空灵清澈天籁之音Sissel—Carrier Of A

听歌学英语:空灵清澈天籁之音SisselCarrier Of A Secret Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年.是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想

发表于:2019-02-18 / 阅读(200) / 评论(0)

听歌学英语

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aggregate fund in flow outflow

arc through

Arteria segmenti posterioris

asynchronous transfer mode switching

Auger electron spectroscopy (AES)

avicennia officinaliss