暴徒们冲进银行，开始疯狂扫射。

The gangsters stormed into the bank and started ___gunning wildly.

他一直在全力以赴地争取这次奖学金机会。

He's been ___gunning for this scholarship opportunity with all his might.

他不断踩油门，发动机轰鸣作响。

The engine roared as he kept ___gunning the accelerator.