hinge assembly

例句：

1. 1.The hinge assembly on the door is broken.
   门上的铰链组件坏了。
2. 2.The hinge assembly on the door is very sturdy.
   门上的铰链组件非常坚固。
3. 3.The hinge assembly on the door needs to be replaced.
   门上的铰链组件需要更换。