Definition: a person who uses bombs Level: B2
警方正在搜寻对地铁爆炸案负责的炸弹袭击者。
Police are searching for the ___bomber responsible for the subway explosion.
一名著名的二战轰炸机飞行员在飞机被击落后被俘。
A famous WWII ___bomber pilot was captured after his plane went down.
