ring back

ring back 回电话，再打电话

【例句】

◆ I told him you weren't in，so he said he’d ring back later．我告诉他你不在，于是他便说晚些时候再给你打电话。 

◆ Will you please ask her to ring me back after school?请你让她放学后给我回电话好吗？