攻击机

例句：

1. 1. The enemy attacked our position with heavy artillery.
   敌人用重炮向我们的阵地发起了攻击。
2. 2.The police are investigating the attack on the city's security system.
   警方正在调查对城市安全系统的袭击事件。
3. 3. The military is preparing for a possible attack on the border.
   军队正在准备应对可能对边境的攻击。