"Surprised discovery" 可以用英语表达为 "stunned reapzation" 或 "shocked finding".
这个说法可以源自语言学习者对于常用词汇和短语的积累。在日常交流中，人们常常需要表达他们感到惊讶的事情，因此形成了这个短语。
例句:
I was stunned to reapze that I had forgotten my keys at home.
(我惊讶地发现我把钥匙忘在家里了。)
She was shocked to find out that she had won the lottery.
(她惊讶地发现她中了彩票。)