start on scratch

• vi. 从头做起(从起跑线开始)

start on scratch的用法和样例：

例句

用作不及物动词 (vi.)

1. I would like to move to another town and make a fresh start.
   我想搬到另一个城市去，从头做起。
2. He lost all his money and had to start again completely from scratch.
   他损失了所有的钱，只好再从头做起。