英音听力讲解:特朗普团队公开普京的信件

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短语讲解：

1. The German Chancellor Angela Merkel says her government is doing everything humanly possible to step up security in the wake of the Berlin Christmas market attack.
 
step up 走上; （使） 增加
例句：We must step up our vigilance.
我们一定要提高警惕。

2. Mrs. Merkel spoke of her relief that the danger posed by the Tunisian who carried out the attack was over.

carry out 进行; 执行; 完成; 抬出去
例句：No matter what we do, we must carry out our duties.
无论干什么工作,我们都应履行自己的职责。