hotline

Từ điển Oxford Advanced Learner 8th

hot·line [hotline hotlines] BrE [ˈhɒtlaɪn] NAmE [ˈhɑːtlaɪn] noun
1. a special telephone line that people can use in order to get information or to talk about sth
•a 24-hour confidential hotline
•An emergency hotline has been set up for the relatives of those involved in the disaster.
2. a direct telephone line between the heads of government in different countries
•the hotline to the White House

Example Bank:
•A telephone hotline has been set up to give information about the changed train services.
•Call our 24-hour hotline to find out if you have won a prize.
•The company has an information hotline that customers can call if they are worried about products.