back to the drawing board
01
tillbaka till ritbordet, börja om från början
used when one has to return to the beginning of a process and redo the process after one's effort has failed
idiom
Exempel
The prototype of the product did not work as planned, so we have to go back to the drawing board and come up with a new design.
Vår första marknadsföringsplan fungerade inte, så det är tillbaka till ritbordet.
