n.大炮；机关炮
v.开炮；相撞
The cannon shot the town to pieces. 大炮的射击毁了这座城市。
The cannon thundered in the hills. 大炮在山间轰鸣。
Our fighter planes are all armed with cannon. 我们的战斗机都装备了机关炮。
put a finger into another pie
