慢速英语:US Troops to Remain in Afghanistan, Deploy to Cameroon

音频下载[点击右键另存为]

同步字幕下载[点击右键另存为]

短语讲解：

1. But Afghan troops have not been able to provide security for the country.

be able to 能够; 能
例句：You think he'll be able to help?
你觉得他能帮上忙吗?

2. At one time, there were 100,000 American troops in the country.

at one time 一度， 从前
例句：The city at one time must have been prosperous.
这座古城肯定一度很繁荣。

3. The group has killed hundreds of civilians in Cameroon and at least 10,000 in Nigeria over the past few years.

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。

4. The official said they would stay “as long as (their) presence is requested.”

as long as 只要
例句：As long as you succeed they are yours entirely.
只要你胜利了，他们就对你五体投地。