打气

例句：

1. 1. He gave the engine a good kick to get it going again.
   他用力踢了发动机一下，让它再次运转。
2. 2. The car needs some air to keep running smoothly.
   这辆车需要一些空气才能平稳运行。
3. 3. After the race, the runners were encouraged by their coach to keep pushing themselves.
   赛后，运动员们被教练鼓励继续努力。