单词：quinoidine
in the treatment of cinchona bark. It consists of a mixture of several
alkaloids.
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英语情景对话-日常生活
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单词解析速记
Science and technology. 科技。 Exercise and addiction. 锻炼也会上瘾。 Fun run. 奔跑的奥秘。 People, it seems, have evolved to be addicted to exercise. 人类似乎在进化过程中对锻炼上瘾了。 AS THE legions of gym bunnies a
经济学人科技系列
By Cynthia Kirk ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii This is the VOA Special English ENVIRONMENT REPORT. Experts say the American state of Hawaii has been invaded by a small fro
健康与环境
Science and technology 科学技术 Exercise and addiction 锻炼也会上瘾 Fun run 奔跑的奥秘 People, it seems, have evolved to be addicted to exercise 人类似乎在进化过程中对锻炼上瘾了 AS THE legions of gym bunnies and jogging
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