ADJ 指定受话人的,叫人的(如果指定受话人不在,可以免交电话费) If you make a person-to-person call, you say that you want to talk to one person in particular. If that person cannot come to the telephone, you do not have to pay for the call. 指定受话人的,叫人的(如果指定受话人不在,可以免交电话费) [formal]