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1·Stanley Steels still thinks someone stole his smooth steel sling shot.

斯坦利·斯蒂尔仍然认为有人偷了他的平滑的钢弹弓的弹丸。

2·All these spacecraft have used sling-shot style gravity assist maneuvers to increase their speeds through the outer solar system.

这些航天器全都使用了射弹弓式的引力辅助方法，从而在外太阳系中提高速度。

3·You see, for past months, we had been furiously addicted to this game of crushing pigs with flying birds shot from a sling.

你可知道，过去的几个月里，我们一直疯狂地沉迷于这个用投石器把小鸟弹出去打猪的游戏。