It's all Greek to me

It's all Greek to me
It's all Greek to me

It's all Greek to me
非正式用法,表示难懂的事物.如：It's all Greek to me(I don't understand it at all.)我对它一窍不通.

这对我来说太难了！
希腊语（GREEK）据说是很难学的语言，所以大家就用它来比喻很难完成的事情。

Greek语言非常非常难，所以就是无法理解的意思。

一窍不通的意思