keep your nose to the grindstone

US /kiːp jʊər noʊz tə ðə ˈɡraɪndˌstoʊn/
UK /kiːp jʊər noʊz tə ðə ˈɡraɪndˌstoʊn/
"keep your nose to the grindstone" picture
1.

trabalhar duro, se dedicar

to work hard and continuously at a task

:
If you want to succeed, you need to keep your nose to the grindstone.
Se você quer ter sucesso, precisa trabalhar duro.
She's been keeping her nose to the grindstone all semester to get good grades.
Ela tem trabalhado duro o semestre inteiro para tirar boas notas.