big gun meaning in English

big gun ＝big bug.

Like the big guns of former days, they can be towed or driven to battle sites .
这种火箭像过去的大炮那样，可用车辆牵引或运载到战场上去。
This kind of battleship is assembled with big guns
这种战舰装备着大型火炮。
These two rows of seats are reserved for the big guns
这两排座位是为领导人保留的。
Have you been selling big guns to bad people
你是不是把军火卖给坏蛋了？
The study of visual technology in big gun dis system
系统中视景技术研究

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