慢速英语:US Officials Meet About Plans to Fight Islamic State

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短语讲解：

1. He also wants Congress to agree on limits on the use of ground troops.

agree on 对某事[物]有同样看法， 商定[同意]某事
例句：As we can't all agree on this matter, let's vote on it. 
大家意见不一，我们表决好了。 

2. The U.S. military has been carrying out airstrikes against Islamic State targets in Iraq since August and in Syria since September.

carry out 履行
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。

3. Another Nigerian official said a total of 36 towns have been recovered from the militant group since last Friday.

a total of 总数为
例句：Their expenses reached a total of 1, 000 pounds. 
他们的花费总计1000英镑。