back to the drawing board
重新开始，重新计划或重新设计以取得更好的结果
口语·表示计划失败后重新开始
英文释义
start again from the beginning because a previous attempt has failed or been found to be unworkable
例句
Our prototype failed the test, so it's back to the drawing board for the whole team.
典故来源
源自二战时期美国军事工程师的绘图板，当设计方案失败时，他们必须回到绘图板前重新设计。