1. I imagine another possibility. I am walking with my gun in my hand when I hear the voice. The man mustn't have seen my gun.
    我的朋友便不由自主地锁上了车门。

2. I began to turn round to see what he was looking at and at the same moment, the outside bank guard, the one with the machine gun, came flying through the door and lay face down on the floor.
    紧随其后进门的是三个着实令人恐惧的人，他们头上都带着让人恐怖的面罩，还带着枪；至少最前面的一个拿着一支手枪。

3. In 1871, American inventor Ives McGaffey realized that if you turned an air pump (气泵) the opposite way, you would have a machine that could pick up dirt.
    1871年，美国发明家艾夫斯·麦加菲意识到,如果将气泵的转动反个向,它就会变成一台能吸起灰尘的机器。

4. Is the man apparently preparing to surrender really going to, or is he going to raise the gun in front of him and shoot?
    那个看似想投降的人是否真会投降，还是要举枪射击？

5. It is clear to everyone that the police need more protection against the gun and the knife.
    人人都清楚警察需要更多的保护，以防刀枪。

6. From a heavy gun was raised, the captain realized that the ship must have been a cruiser.
    船长根据捞上来的一门重炮，判断出这条船大概是一艘巡洋舰。

7. From a heavy gun that was raised, the captain realized that the ship must have been a cruiser.
    从捞起的一门大炮来看，船长认为那艘船一定是艘巡洋舰。

8. For across the room, a small gun in his hand, stood a man.
    屋子的另一边站着一个男人，手里握着一支小手枪。