短语词组短語operator -assisted call 操作員協調的呼叫Operator -assisted telephone service 需要話務員幫助的電話業務Operator Assisted Paging 中文傳呼服務Operator Assisted Calls 電話查號服務;話務員協助式呼叫Operator Assisted Cmany 酧勞接轉電話 返回 operator assisted