to go back to the drawing board
Meaning: to start again from the beginning
معنی : از ابتدا شروع کردن کاری
Example: The president didn't agree with our new ideas for the company , so we had to go back to the drawing board
مثال: رئیس شرکت با طرح های جدید ما برای توسعه شرکت مخالفت کرد، بنابراین ما مجبوریم که از ابتدا شروع کنیم