单词：pathogenic e. coli
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By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide
VOA2003（下）-环境与健康
The Arctic's Anti-Snowball Snowball Effect 北极的反雪球效应 Last Christmas, Santa Claus must have been loading his sleigh in a t-shirt and shorts. Temperatures at the North Pole crept up toward the freezing point when they should have been mi
2017年科学美国人(七)月
今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示，Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革，但是又担心改革可能带来的副
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New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c
VOA标准英语2010年(七)月
今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示，Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革，但是又担心改革可能带来的副
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VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h
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