fusule

例句：

1. 1. The door was locked and the fusule was broken.
   门被锁上了，铰链也坏了。
2. 2. The old house had a wooden fusule that could be opened with a key.
   这所老房子有一个木制的铰链，可以用钥匙打开。
3. 3. The fusule on the door is rusted and needs to be replaced.
   门上的铰链生锈了，需要更换。