单词：thrombendarteriectomy
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VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Steve Ember. VOICE TWO: A massive earthquake in China's Sichuan province earlier this year was the country's worst in more than 30 years. And I'm Barbara Klein. Scientists who study
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FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Faith Lapidus. STEVE EMBER: And I'm Steve Ember. Scientists who study the Earth tell us that the continents and ocean floors are always moving. Sometimes, this movement is violen
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As a new father, I quickly learned the true meaning of maternal instinct. Late one night, I was summoned to the hospital to attend to one of my patients. I quietly got up in the dark but tripped over a toy and crashed to the floor. As I lay there rub
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