traction thrust

例句：

1. 1. The car's traction ispoor on the wet road.
   这辆车在湿滑的路面上牵引力不足。
2. 2.The train needs more traction to movefaster.
   火车需要更多的牵引力才能更快地行驶。
3. 3. The new tire has a highertraction than the old one.
   新轮胎的牵引力比旧轮胎高。