night firing

例句：

1. 1. The hunters were out in the forest at night, firing their guns.
   猎人在森林里夜间开枪。
2. 2. The soldiers were practicing their night-firing skills for the upcoming battle.
   士兵们正在练习他们的夜间射击技巧，为即将到来的战斗做准备。
3. 3.The military had a night-firing system that could be activated at any time to defend against intruders.
   军队有一个夜间射击系统，可以在任何时候激活以防御入侵者。