VERB
（用钥匙）打开，开启(门、房间、箱匣等的锁)
If you unlock something such as a door, a room, or a container that has a lock, you open it using a key.
例句
He unlocked the car and threw the coat on to the back seat...
他用钥匙打开车门，把外套扔到了后座上。
She unlocked the case and carefully lifted out the vase.
她用钥匙打开了箱子，小心翼翼地拿出那只花瓶。