0 to start working or studying hard:
You're going to have to really knuckle down (to your work) if you want to pass your final exams.
1 to start working hard:
You’re going to have to knuckle down and catch up on your schoolwork.
中文繁体
開始努力工作, 開始用功學習…
中文简体
开始努力工作, 开始用功学习…
Polski
przysiąść fałdów…
Türk dili
sıkı çalışmaya başlamak, çok çalışmaya koyulmak…
русский язык
решительно браться за что-либо…
NOVÉ SLOVÁ
European
May 10, 2021
SLOVO DŇA
Shimmer
knuckle down
