erratic firing

例句：

1. 1. The soldiers were ordered to fire at will during the battle.
   士兵们被命令在战斗中随意射击。
2. 2. The erratic firing from the enemy's gun caused confusion among the troops.
   敌方火炮的不规则射击给部队造成了混乱。
3. 3. The erratic firing of the cannon was heard throughout the battlefield.
   大炮的不规则射击在整个战场上都能听到。