back to the drawing board
начать с чистого листа, начать всё с начала
Cora must have failed to achieve good results in her experiment so she had to go back to the drawing board.
Другие идиомы:
- You scratch my back and I'll scratch yours.
- behind one's back
- pat on the back
- on (someone's) back
- give (someone) the shirt off one's back
- off one's back
- back on one's feet
- get (someone's) back up
- back to square one
- scratch (someone's) back
- back-to-back
- put one's back into (something)
- back and forth
- have one's back to the wall
- turn one's back on (someone or something)