lock gate hatch

例句：

1. 1.The old house has a lock gate at the entrance.
   这所老房子有一个入口的锁。
2. 2.He locked the door and went out for a walk.
   他锁上门出去了。
3. 3.The thief tried to break into the locked gate.
   那个小偷试图撬开锁着的门。