VOA常速英语:US Troops Clear Highway for Pullout from Iraq

词汇讲解：

1. hotbed n. (坏事、暴力等的)温床
例句：The city is a hotbed of crime.
这个城市是犯罪的温床。

2. threat n. 可能造成威胁的人[事, 想法]
例句：The use of nuclear weapons is a horrible threat to the species.
核武器对人类是一个严重威胁。

3. assign vt.分配; 交给；指派, 选派；指定, 订出
例句：The captain assigned two soldiers to guard the gate.
上尉派了两个士兵守大门。

4. route n. 路, 路途, 路线, 路程
例句：The climbers tried to find a new route to the top of the mountain.
登山者试图寻出一条通到山顶的新路。

5. deter vt. 威慑住,吓住;使断念
例句：Failure did not deter him from trying again.
失败并未使他泄气罢休。

6. assemble vt. 集合,召集,聚集
例句：Over 10,000 people were assembled at the airport to honor the President's visit.
有一万多人聚集在机场欢迎总统来访。

7. survive vi. 幸存, 活下来
例句：These plants cannot survive in very cold conditions.
这些植物在严寒中不能存活。

8. trail vt.跟踪, 追踪
例句：The police trailed the thief.
警察跟踪小偷。

9. passage n. 通道, 过道
例句：The house has an underground passage.
这房子有一条地下通道。

10. onset n. 开始，开端，发生，肇始
例句：His first hit record marked the onset of an astonishing career.
他的第一张风行一时的唱片标志着惊人事业的开始。