a phone or online service that provides advice and information about particular problems 服務熱線(提供咨詢和信息的電話) to set up/run a helpline 建立/運行幫助熱線 an AIDS helpline 艾滋病熱線 Our online helpline service is a chat service for people with questions about mental health issues. 我們的在線幫助熱線服務是一項針對有心理健康問題的人的聊天服務。
Oxford Collocations DictionaryHelpline is used after these nouns:- telephone