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VOA慢速英语:Caffeine is the "Drug" of Choice in Many Cultures
2013-07-16来源:VOA
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词汇讲解:
1. caffeine n.[药]咖啡因;咖啡碱;茶精(兴奋剂)
例句:Caffeine can be addicting like any drug.
咖啡因像任何毒品一样能够使人上瘾。
2. examine vt.检查,调查
例句:This is for them to examine.
这让他们来检验。
3. substance n.物质,材料
例句:They contain an exciting substance.
它们包含了一种令人激动的物质.
4. activate vt.使活动,起动
例句:The operator can also push buttons to activate other behaviors.
操作者也可以按键来激活其他行为。
5. improve vt.提高(土地、地产)的价值
例句:He undertook to improve the working arrangements.
他答应改善工作方式。
6. unique adj.唯一的,仅有的
例句:Build a life of unique experiences.
体验独一无二的经历。
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