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.

열심히 일하다, 죽어라 일하다

to work hard and continuously at a task

:
If you want to succeed, you need to keep your nose to the grindstone.
성공하고 싶다면 열심히 일해야 한다.
She's been keeping her nose to the grindstone all semester to get good grades.
그녀는 좋은 성적을 받기 위해 학기 내내 열심히 일했다.