单词：atoxic
- nontoxic无毒的
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By David McAlary Washington 25 January 2006 When it comes to lung cancer rates among smokers, scientists say race and ethnicity matter. A new study reports significant differences in the rates among s
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今天我们要学的词是clunker。 Clunker有旧车、破车的意思。为了帮助汽车市场走出低谷，美国国会众议院批准了一项计划。The plan offers up to $4500 to consumers who trade in gas-guzzling clunkers for new models,
英语单词荟萃
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