[化] 氟化高钴; 三氟化钴

Old Chemical Weapons in the Baltic Sea

By Caty Weaver Broadcast: July 11, 2003 This is Bill White with the VOA Special English Environment Report. The 1)Baltic Sea is home to thousands of tons of old chemical weapons. Britain, the Soviet U

发表于:2018-12-01 / 阅读(215) / 评论(0)

VOA2003（下）-环境与健康

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(183) / 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(140) / 评论(0)

科技之光

VOA标准英语2018--U.S. Celebrates Relations With Baltic Nations

U.S. Celebrates Relations With Baltic Nations President Donald Trump recently welcomed the leaders of Estonia, Latvia, and Lithuania to the White House.The President noted that this year marks the 100th anniversaries of the three Baltic Nations' inde

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VOA标准英语2018年(四月)

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(172) / 评论(0)

口腔临床英语对话

【轻松英文阅读】水母入侵

These jellyfish have a comparatively harmless sting, but they have shut down a nuclear power plant in Sweden. The power plant, located on the Baltic coast, had to be shut down to prevent overheating after an onslaught of jellyfish. The jellyfish clog

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轻松英文阅读

Wild Europe - Genesis 肇始之初- 9

..As they died they slowly sank, settling in layers on the seafloor. Through time they formed these cliffs in an ocean that was up to 300 meters deeper than we see it today. Just imagine how London mi

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欧洲自然写真

VOA常速英语2017--副总统彭斯在爱沙尼亚发表讲话

On his recent trip to Estonia, Vice President Mike Pence reiterated America's support for Estonia,Latvia and Lithuania saying, America stands with the nations and the people of the Baltic Statesand always will. 近日出访爱沙尼亚期间，美国副

发表于:2019-01-03 / 阅读(189) / 评论(0)

VOA标准英语2017年(8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

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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

英语听力：探索发现 2012-07-22 爱尔兰的故事 Story Of Ireland—4

-Why would they build something like this? What were they trying to say? -I think for early farmers, the notion of ancestry, that's really the central focus of this world. The monuments themselves contain selected bones of the ancestors. This is the

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探索与发现2012年

英文原版对话1000个:978 European Matters

Christophe: OK, Aiste, we're going to talk about environmental issues in Europe. So, does Lithuania have environmental issues? Aiste: Oh, actually were are facing kind of a big problem. The Baltic Sea that's beside Lithuania. You know three Baltic co

发表于:2019-01-27 / 阅读(184) / 评论(0)

原版英语对话1000个

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(146) / 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(143) / 评论(0)

英语单词荟萃

芬兰分析发现波兰磷泄漏流入波罗的海

HELSINKI, July 17 (Xinhua) -- A waste stack near the coast of the Baltic Sea is leaking considerable amount of phosphorous to the sea waters, Finnish environment ministry said on Wednesday. The Finnish Environmental Institute took samples from two ph

发表于:2019-02-08 / 阅读(122) / 评论(0)

英语新闻

美联社新闻一分钟 2008-05-04

1. In the Midwest, it's a data pickup after violent weather marked by tornadoes. In Arkansas, seven people are dead, pushing this year's storm death toll in the state to more than two dozen people. Meteorologists say more than 25 tornadoes may have t

发表于:2019-02-11 / 阅读(210) / 评论(0)

美联社新闻一分钟2008年(五)月

CCTV9英语新闻：China Merchants Group offers to buy Baltic Exchange

Chinas state-owned conglomerate China Merchants Group has made an informal bid to buy London's Baltic Exchange. This makes it the latest contender for the business after the Singapore Exchange. According to sources from Reuters, the approach was made

发表于:2019-02-13 / 阅读(143) / 评论(0)

cctv9英语新闻2016年

Sweden Faces Heavy Burden of Immigration

Sweden, a country with a first class public welfare system, is facing an increasingly heavy immigration burden. There comes amid an outbreak of riots in the suburbs of the Sweden capital Stockholm. Most of the rioters are reported to be immigrant you

发表于:2019-02-14 / 阅读(203) / 评论(0)

世界各地新闻集锦

每天三分钟学英语第363期:英文Where from?可不是问你“哪国人”的意思

知识点讲解： What's the location and the date for the pickup? 地点和时间呢？ The airport. My plane lands at 4:30 in the afternoon. 机场。我的飞机下午四点半到。 Where from? 从哪里出发？ When do you want it? 什么时候出

发表于:2019-02-16 / 阅读(106) / 评论(0)

每天三分钟学英语

二战启示录第42期:大屠杀的源起(6)

More than 3,000 tanks, 7,000 cannons, 3,000 aeroplanes. 德军出动三千多辆坦克车、七千多座大炮、三千多架飞机。 Within 24 hours, 1,500 Soviet aircrafts are wiped out on the ground. 不到二十四小时，一千五百架苏联飞

发表于:2019-02-26 / 阅读(121) / 评论(0)

二战启示录

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