() [] () an occasion when sb is asked to return somewhere, especially for a second interview for a job; a second interview 召回面试；第二轮面试◆Students receiving callbacks should prepare thoroughly for the interview. 收到第二轮面试通知的学生应该为面试做好充分准备。◆a callback interview 第二轮面试➡flyback
[] a telephone call which you make to sb who has just called you or to sb you have called earlier 回电话◆Does the company offer callbacks when they are busy? 公司的人忙碌时会回电话吗？
[] an occasion when people are asked to return goods that they have bought, usually because they are not safe 产品收回
[] () an occasion when sb is asked to go back to work, especially to deal with a sudden serious or dangerous situation 召回某人（处理突发事件）
() ( ˈdial-back) [] a process in which sb logs on to a company computer system which then calls their computer back, used for security or to reduce telephone costs 回拨（出於安全考虑或为了节省电话费，用户拨号登录到公司电脑系统时，系统拨回给用户的过程）