/helplaɪn ||; ˈhɛlpˌlaɪn/noun [C] a telephone service that provides advice and information about particular problems ﹙提供咨询和信息的﹚服务热线: The university health centre runs a helpline for students who are feeling stressed or depressed. 这所大学的保健中心为精神压力大或抑郁的学生提供了心理咨询热线。I called the helpline about my computer and had to wait for 20 minutes to talk to somebody! 我拨打了那个服务热线咨询电脑问题，可是等了 20 分钟才与人通上话！