正文

VOA慢速英语:Have You Perfected the Perfect Tenses?

2016-01-15来源:VOA

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词汇讲解：

1. specific adj. 具体的; 明确的; 特种的
例句：This argument requires a specific explanation.
这一论点需要具体的阐述。

2. describe vt.叙述; 描写，形容
例句：We study samples in order to be able to describe populations.
为了了解总体，必须研究样本。

3. scare vt.使惊恐，惊吓; 使害怕
例句：That should be enough to scare any man into grey hair.
那足以把任何人吓得头发发白。

4. progressive adj.进步的; 不断前进的; 进行的
例句：He was a progressive thinker.
他是个进步的思想家。