闩体

例句：

1. 1. The old househad a rusty latch thatneeded to be replaced.
   这所老房子有一个生锈的锁，需要更换。
2. 2. Heused his key to unlock the door andstep inside.
   他用钥匙打开门并走了进去。
3. 3. The thief tried to force openthe door with a crowbar,but it was too strong for him.
   小偷试图用撬棍强行打开门，但对他来说太强大了。