eye-opener 使人惊奇的事物，使人大开眼界的事物

　　This summer's tour was an eye-opener for her.

　　这个夏天的旅行让她大开眼界。

　　Mike's speech is really an eye-opener. I like it very much.

　　麦克的演讲真让人大开眼界，我很喜欢。

　　疯狂练习吧！