短语词组短语operator -assisted call 操作员协调的呼叫Operator -assisted telephone service 需要话务员帮助的电话业务Operator Assisted Paging 中文传呼服务Operator Assisted Calls 电话查号服务;话务员协助式呼叫Operator Assisted Cmany 酬劳接转电话 返回 operator assisted