crosshead key

例句：

1. 1.The crosshead key was the only thing that could open the lock.
   十字头钥匙是唯一能打开锁的东西。
2. 2. She used the crosshead key to unlock the door.
   她用十字头钥匙打开了门。
3. 3. The crosshead key was a valuable tool for opening many types of locks.
   十字头钥匙是打开许多类型锁的宝贵工具。