轰炸机投弹手在任务前仔细检查了瞄准系统。

The ___bombardier double-checked the targeting system before the mission.

这名炮手负责指挥火炮的装填和发射。

The ___bombardier was responsible for overseeing the loading and firing of the artillery.

这辆加拿大制造的庞巴迪车非常适合在北极地区运输物资。

The Canadian-made ___Bombardier is perfect for transporting supplies in Arctic regions.