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BBC在线收听下载:美国航天局宣布发现迄今最像地球的系外行星

2015-07-27来源:BBC

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词汇讲解：

1. tackle vt.着手处理
例句：I'll tackle the boss for a raise.
我将与老板交涉要求增加薪水。

2. terrorist n.恐怖主义者，恐怖分子
例句：Many ended up in prison for terrorist activities.
许多从事恐怖活动的人最终被关进牢房。

3. retain vt.保持; 留在心中，记住
例句：Concentrated study will help you to retain knowledge.
专心学习有助于你记住知识。

4. maintain vt.保持; 保养
例句：He racked no rents to maintain the expenses of his establishment.
他不向租户索取过高的租金来维持建设的开支。

5. deepen vt.变深，加深
例句：Her wrinkles deepen with age.
她的皱纹随着年龄增长而加深。

6. eradicate vt.摧毁; 完全根除
例句：The government is making efforts to eradicate racial discriminating.
政府正在努力消除种族歧视。

7. investigate vt.调查; 研究
例句：The detective was sent to investigate the crime.
那位侦探被派去调查该罪行。

8. involve vt.涉及
例句：It would involve all Rome in a fearful strife.
这将使整个罗马卷入一场可怕的战争。