1. A sniper's bullet tore up a wall two inches above his head.
   一颗狙击手的子弹打烂了他头顶上方两英寸地方的墙头。
2. He butted his head against the shelf as he was getting up.
   他起来时一头撞在搁架上了.
3. The head of the dolphin popped up quite near the boat.
   那海豚的头在离船很近的地方冒出来。
4. The bird bobbed its head up and down.
   鸟上下摆动他的头
5. A little bird was bobbing its head up and down.
   一只小鸟把头上下快速摆动着。

　1个动词解释