Tra từ keep your ear to the ground - Từ điển Oxford Advanced Learner 8th

Từ điển Oxford Advanced Learner 8th

keep your ear to the ground keep/have your ear to the ˈground idiom to make sure that you always find out about the most recent developments in a particular situation •The agent had no suitable properties on his books but promised to keep an ear to the ground for us. Main entry: ↑ear_idiom