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العربية
knuckle-down
US /ˈnʌk.əl/
UK /ˈnʌk.əl/
1.
boyun eğmek
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.
:
knuckle down
knuckle
knuckle under
near the knuckle
knuckle sandwich
rap somebody on the knuckles
down