野战炮

例句：

1. 1. The army used to use tanks and artillery in battles.
   军队过去在战斗中使用坦克和大炮。
2. 2. The soldiers fired their guns at the enemy.
   士兵们向他们的敌人开火。
3. 3. The tank was a symbol of strength and courage.
   坦克是力量和勇气的象征。