by the numbers
按部就班
口語·形容機械或按部就班
英文釋義
to do something in a predictable and methodical way, without any creativity or originality
例句
He painted the room by the numbers, following the instructions exactly.
典故來源
源自繪畫或軍事訓練，指按編號步驟操作，缺乏創意或靈活性。