[化] 五氟化砷

疯狂英语听力 The cosmetics

The cosmetics [00:01.04]妆海沉浮 [00:02.09]Across all cultures,across all centuries,we've painted our bodies,marked our faces with ochre and ashes,mascara and rouge. [00:08.03]跨越不同的民族，历经不同的年代，我们一直在身体上

发表于:2018-11-28 / 阅读(167) / 评论(0)

零距离李阳疯狂英语口语

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(118) / 评论(0)

Scientific American(十二)月

英文杂志-Tobacco

Being old is when you know all the answers, but nobody asks you the questions. (Anonymous) Six months before she died, my grandmother moved into an old people's home and I visited her there when I was in Britain. She was sitting in the living room wi

发表于:2018-12-07 / 阅读(89) / 评论(0)

英文杂志-Magazine

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(89) / 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(117) / 评论(0)

口腔临床英语对话

如何成为福尔摩斯第18期

These were permissive times, and in 1970, one legendary director finally brought his long-harboured homage of Holmes to the screen. 当时性风气相当开放。1970年，一位传奇导演终于将他对福尔摩斯的长久敬意搬上了银幕。

发表于:2019-01-01 / 阅读(104) / 评论(0)

如何成为福尔摩斯

CNN 2010-10-09

This town here has sort of been going through clean-up. People are trying to salvage things from their houses, but the reality is when you talk to them, there's nothing they can salvage when has been touched by this red toxic chemical mix. People sho

发表于:2019-01-08 / 阅读(89) / 评论(0)

CNN2010年(十)月

SSS 2010-12-02

This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(99) / 评论(0)

Scientific American(十二)月

NPR 2010-12-03

The US House is expected to vote this hour on whether to extend expiring tax cuts for everyone, including the wealthy. NPR's Andrea Seabrook reports the issue's been generating heated debate. Democrats say they want to keep lower tax rates from middl

发表于:2019-01-08 / 阅读(131) / 评论(0)

2010年NPR美国国家公共电台12月

食品方面的词汇

A acceptable daily intake (ADI) 每人每日容许摄入量 acclimatization 气候适应 accumulate 蓄积 acetylandromedol 乙酰柽木醇毒 acceptable risk level 可接受的危险水平 acid-forming food 成酸性食品 Achromobacterium 无色菌属 Act for preventing the adulterati

发表于:2019-01-08 / 阅读(181) / 评论(0)

英文语法词汇

VOA标准英语2012--Tests Show Levels of Arsenic in US Rice

Tests Show Levels of Arsenic in US Rice Two hundred different types of rice and rice products tested by both the non-profit research group, Consumer Reports, and the U.S. Food and Drug Administration [FDA], contained varying levels of different forms

发表于:2019-01-13 / 阅读(88) / 评论(0)

VOA标准英语2012年(九月)

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(99) / 评论(0)

VOA标准英语2010年(十)月

TED演讲：温和的成功哲学(7)

And I went to talk to them about certain of the great tragedies of Western art. 我去找他们聊聊西方艺术中最伟大的几个悲剧故事。 I wanted to see how they would seize the bare bones of certain stories, 我想知道他们会如何露

发表于:2019-01-18 / 阅读(78) / 评论(0)

TED演讲教育篇

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(86) / 评论(0)

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

发表于:2019-01-30 / 阅读(104) / 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(92) / 评论(0)

英语单词荟萃

园艺专业英语

A alternate bearing 大小年结果 amendment 调理剂 ample 充足的 anatomical 解剖的 aneuploid 非整倍性（的） anion 阴离子 annual 一年生植物，一季生植物 anther 花粉囊，花药 anthocyanin [植]炭疽病 antibiotic 抗生

发表于:2019-02-09 / 阅读(144) / 评论(0)

英文语法词汇

如果特朗普是种食物,他是啥

If President Donald Trump were a food, what food would he be? 如果特朗普是种食物，他会是啥？ If Trump were a food hed be a creampuff filled with poisoned and infectious cream filling. The gooey cream would be chock full of lead, mercur

发表于:2019-02-18 / 阅读(75) / 评论(0)

英语新闻

报告指出北京雾霾毒性已经有所下降

The proportion of hazardous metal toxins in PM2.5 in Beijing has decreased for the past three years, which experts lauded as the initial achievement of the city's anti-smog measures. 过去三年，北京市PM2.5中对人体有害的金属毒素的比重

发表于:2019-02-18 / 阅读(124) / 评论(0)

英语新闻

Get enough sleep

Get enough sleep I have a theory about sleep. My theory is this: everyone who routinely uses an alarm clock suffers from chronic sleep deprivation. Using an alarm clock a few times a year (to catch a plane or have a phone call with someone in another

发表于:2019-02-18 / 阅读(93) / 评论(0)

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学英语单词

alveolar pericementitis