rear axle hub key

例句：

1. 1. The rear axle hub key is essential for theproper functioning of the vehicle'srear axle.
   后轴轮毂键对于车辆后轴的正常运作至关重要。
2. 2. The rearaxle hub key was damaged duringthe accident, causing the vehicle to losepower.
   事故中后轴轮毂键受损，导致车辆失去动力。
3. 3. The mechanicreplaced the rear axle hub key with a newone, ensuring that the vehicle wouldrun smoothly again.
   技师用一个新的后轴轮毂键替换了旧的，确保车辆能够顺畅运行。