keep one's nose to the grindstone

Found in Anh - Anh (Wordnet)

Definition Idiom (Verb phrase) : - To work very hard and persistently, without allowing oneself to be distracted or to take breaks. This idiom describes a state of continuous, diligent, and often demanding labor. It implies focus and dedication to a task over a long period. Usage This idiom is used to describe someone who is applying themselves with great effort and concentration to their work...