unlatch

例句：

1. 1.The door was unlatched by the wind.
   门被风吹开了。
2. 2. He unlocked the safe with a key.
   他用一把钥匙打开了保险箱。
3. 3. She released her grip on the rope and let go.
   她松开了对绳子的握持，放手了。