gas rifle grenade

例句：

1. 1. The soldier used a gas rifle grenade to clear the area of intruders.
   士兵使用气体步枪榴弹清除了入侵者。
2. 2. The police used gas rifle grenades to subdue the rioters.
   警方使用气体步枪榴弹制服了暴动者。
3. 3. The military had to use gas rifle grenades to protect their troops during the battle.
   在战斗中，军队不得不使用气体步枪榴弹来保护他们的部队。