1. He stopped biting his apple.
    他停止咬苹果。

2. It has been in trouble for biting people before now, and they are sure that the court will order it to be destroyed.
    在此之前，它就曾咬伤过人造成了不小的麻烦，他们确信法庭将判决把狗除掉。

3. Imagine a few people sitting in a waiting room: one is tapping his fingers on his briefcase, another keeps rubbing his hands together, another is biting his fingernails, still another grabs the arms of his chair tightly and one keeps running his fing
    想象一下几个坐在一间等候室里的人：一个在用手指轻轻敲打公文包，一个在不停地揉搓双手，另一个在咬自己的手指甲，还有一个用手紧抓着椅子的扶手，又一个在不断地用手指梳理着头发。