door latch

例句：

1. 1. The old house had a worn-out door latch that needed to be replaced.
   这所老房子的门闩磨损严重，需要更换。
2. 2.He carefully locked the door latch and turned the deadbolt.
   他仔细地锁上了门锁，并转动了保险栓。
3. 3.The thief managed to pick the lock on the door without leaving any trace of his presence.
   小偷设法没有留下任何痕迹就撬开了门锁。