1. Eye-opener 令人大开眼界的事

Listening to him talk about his adventure in China was a real eye-opener.
听他讲在中国的历险真是令人大开眼界。

释义：

opener: 开瓶器

eye-opener: 这个开瓶器打开的不是酒瓶，而是人的眼界和视野。