Английский словарь американских идиом - believe one's ears

{v. phr.} 1. To believe what one hears; trust one's hearing. - Used with a negative or limiter, or in an interrogative or conditional sentence. * /He thought he heard a horn blowing in the distance, but he could not believe his ears./ 2. To be made sure of (something). * /Is he really coming? I can hardly believe my ears./