慢速英语:Iraqi Forces Secure Ramadi After Ousting IS

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短语讲解：

1. The U.S. military said it carried out at least 29 air strikes on IS targets in the past week.

carry out 进行; 执行
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.
at least 至少
例句：In fact it requires at least n generators.
事实上，它至少要有n个元素。