1. The plane blasted into the air like a bullet shot out of a rifle, and soon we were at 2,000 feet and climbing.
    飞机像离膛的子弹射入空中，很快我们升到了2,000英尺的高空，并在继续爬升。

2. Now, dressed in a blue uniform and with a rifle over his shoulder, the prisoner marched boldly up and down in front of the camp.
    现在他身穿蓝军装，肩扛步枪，在军营门前大胆地来回走看。