car axle

例句：

1. 1. The car's axle broke during the accident.
   事故中汽车的轴断了。
2. 2. The mechanic replaced the broken axle with a new one.
   机械师用一个新的轴替换了断轴。
3. 3. The old car had a worn out axle that needed to be replaced.
   这辆旧车的车轴磨损严重需要更换。