put (one's) nose to the grindstone

Übersetzungen
усердно работать
If you want to succeed, you need to put your nose to the grindstone.
Если ты хочешь добиться успеха, тебе нужно усердно работать.
Definitionen
To work hard and diligently, often with a focus on a specific task or goal, typically requiring sustained effort and concentration.