不相信自己的耳朵(或眼睛);對所聞(或所見)非常吃驚
not believe your ears / eyes
to be very surprised at sth you hear / see
I couldn't believe my eyes when she walked in.她走進來時我簡直不相信自己的眼睛。
釋義來自《牛津高階英漢雙解詞典》第 9 版