热线2rèxiàn 1.为了便于马上联系而经常准备着的直接连通的电话或电报线路{hot line; direct telephone or telegraph line established for instant contact, information, counselling, etc.}: ～点播{order a radio or television programme by hot line}|～联系{hot-line contact}|～服务。{hot-line service} 2.通向热点的路线{busy route}: 旅游～。{busy tourist route}