as easy as pie
非常容易
口語·表示某事非常簡單
英文釋義
extremely easy or simple
例句
Don't worry about the test; it'll be as easy as pie if you studied.
典故來源
源自20世紀初的美國,餡餅是常見甜點,制作簡單或吃起來輕松,因此用來比喻事情毫不費力。