What's to know?我哪儿知道?

英文释义

A reply meaning "no special knowledge is needed to do what you　are talking about!"

例句

My friend is a famous chef, and when he asked me if I knew how to make rice, I said "What's to know?" and just　laughed.

我的朋友是一位知名厨师，他问我知道不知道怎么做米饭，我说：“我哪儿懂？”，然后就笑了起来。