all Greek to me
对某事一无所知、毫无概念或听不懂
口语·形容难以理解
英文释义
something that is difficult or impossible to understand or comprehend
例句
This physics lecture is all Greek to me—I don't understand a word.
典故来源
源自莎士比亚戏剧《凯撒大帝》，希腊语对罗马人来说难以理解，比喻完全听不懂。