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BBC在线收听下载:特朗普推特发文称美国需扩张核能

2016-12-24来源:BBC

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词汇讲解：

1. terrorist n. 恐怖主义者，恐怖分子，恐怖分子
例句：One American was killed and three were wounded in terrorist attacks.
在几起恐怖袭击中，一名美国人遇难，三人受伤。

2. strengthen vt.加强，巩固; 勉励，激励
例句：You cannot strengthen the weak by weakening the strong.
削弱强者不能使弱者变得强壮。

3. expand vt.扩张; 使…变大; 详述
例句：Engineers noticed that the pipes were not expanding as expected
工程师注意到管道并没有如预期那样膨胀。

4. investigation n.侦查; （正式的）调查，研究
例句：We are making a thorough investigation
我们正在进行彻底调查。

5. threaten vt. 危及; 恐吓; 预示（某事）
例句：He said army officers had threatened to destroy the town
他说陆军军官们曾威胁要摧毁那座小镇。