So we went back to the drawing board.

所以我们又回到了画板前。

If that is so, move on or go back to the drawing board.

如果是这样的话，还是回去举动茫无头绪。

With the edict in mind, we went back to the drawing board.

记着这条命令，我们回到了制图板。

Our plan backfired. So, now it's back to the drawing board.

我们的计划失败了，现在我们必须重新开始。

If this plan doesn't work, then it's back to the drawing board.

假如这项计划不成功，那就得重头开始了。