v.开锁；开启；揭开；显露
She fail to unlock the safe in spite of all her exertion. 她虽然费尽力气，仍未能将那保险箱的锁打开。
I keep worrying that I've left the garage door unlocked. 我一直担心车库的门没有锁。
The divers hoped to unlock some of the secrets of the sea bed. 潜水员希望揭开海底的一些秘密。
