轮子

例句：

1. 1. The car has four wheels and two tires.
   这辆车有四个轮子和两个轮胎。
2. 2. The train needs to be balanced on its wheels.
   火车需要平衡其轮子。
3. 3. The bicycle has two wheels and a frame.
   自行车有两个轮子和一个框架。