1. A target vulnerable to sweeping gunfire.
   易受纵射的目标
2. Heavy gunfire dislodged the enemy from the fort.
   猛烈的炮火把敌人逐出要塞。
3. The troops let fly a volley of gunfire.
   部队进行了雨点般的扫射
4. To habituate a horse to the sound of gunfire .
   使马习惯于听枪炮声
5. They replied to the enemy's attack with heavy gunfire.
   他们以猛烈的炮火对付敌人的攻击。

　1个名词解释