Hilum

例句：

1. 1.The door is held open by a hinge.
   这扇门通过一个铰链来保持打开。
2. 2. The hinge on the cabinet is broken.
   橱柜上的铰链坏了。
3. 3.The lock was not working properly because of the hinge pin.
   锁不工作是因为铰链销子有问题。