from scratch
從零開始或從頭開始
口語·表達從零開始
英文釋義
to start from the very beginning; to start from nothing or from the most basic level
例句
I baked this cake from scratch without using a mix.
典故來源
源自板球或賽跑中,用粉筆在地面劃線作為起點,從零開始。