CNN news 2011-05-18 加文本

词汇讲解：

1. expand v. 使…变大, 扩大, 扩张, 增强
例句：The ranks of the teachers are constantly expanding.
教师队伍日益扩大了。

2. evidence n. 证词; 证据; 迹象
例句：The room bore evidence of a struggle.
这房间里有搏斗过的迹象。

3. ammunition n. 弹药, 军火
例句：When the soldiers had used up all their ammunition, they went on fighting with their swords.
当战士们弹药用完时, 他们继续用刺刀作战。

4. weaponry n. (总称)武器
例句：All weaponry demands frequent servicing.
所有武器都需要经常检修。

5. participant n. 参加者, 参与者
例句：She is an active participant in this activity.
她积极参与这项活动。

6. possession n. 个人财产, 私人财物
例句：He gained possession of more land.
他拥有了更多的土地。

7. sniper n. 狙击兵
例句：A sniper’s bullet tore up a wall two inches above his head.
一颗狙击手的子弹打烂了他头顶上方两英寸地方的墙头。