铰链, 合页
a movable joint or mechanism on which a door, gate, or lid swings as it opens and closes or which connects two parts so that one can swing relative to the other
:
• The door creaked on its rusty hinges.
门在生锈的铰链上吱吱作响。
• He adjusted the hinge on the cabinet door.
他调整了橱柜门的铰链。