unbuckle(动词):解开(皮带、扣子、安全带等)的搭扣;松开并取下。常用于指把“扣上”的东西恢复到未扣状态。也可引申为“松开束缚”。
/ʌnˈbʌk(ə)l/
Please unbuckle your seatbelt when the plane has stopped.
飞机停稳后,请解开安全带。
He unbuckled his belt, took off his heavy coat, and finally allowed himself to relax after the long trip.
他解开皮带,脱下厚外套,长途旅行后终于让自己放松下来。
由前缀 un-(表示“取消、反向”)+ buckle(“扣上;搭扣”)构成,字面意思就是“把扣子解开”。buckle 源自中世纪法语,与“搭扣、扣合”的器具和动作有关。