劍橋詞典a service providing advice and comfort to worried or unhappy people on the phone （為來電者提供咨詢服務(wù)或排憂解難的）電話服務(wù)熱線 A new helpline is now available for people trying to stop smoking . 對于那些想戒煙的人，現(xiàn)在有一條新的服務(wù)熱線可供咨詢。 返回 helpline