help·line
noun/ˈhelplaɪn/
/ˈhelplaɪn/
- a phone or online service that provides advice and information about particular problems
服务热线（提供咨询和信息的电话） - to set up/run a helpline
设置/运行帮助热线 - an AIDS helpline
艾滋病求助热线 - Our online helpline service is a chat service for people with questions about mental health issues.
我们的在线帮助热线服务是为有心理健康问题问题的人们提供的聊天服务。
Oxford Collocations DictionaryHelpline is used after these nouns:- telephone
- to set up/run a helpline