短语讲解：
1. The United States' eight-year military operation of Iraq is coming to an end.
come to an end结束,终止
例句：All good things come to an end.
天下没有不散的筵席。
2. The drawdown has been under way for months, but in recent days movement has accelerated at U.S. bases in Kuwait that serve as transit points.
serve as充当, 担任
例句：We found that birch bark could serve as paper.
我们发现桦树皮可以作纸用。
3. What took eight years to put into place is being dismantled in weeks.
put into使处于某种
