knuckle down
/ˈnʌkəl daʊn/
to start working hard seriously
“He needs to knuckle down and finish his homework.”
My Deck-এ যোগ করুন
inoh
inoh
/ˈnʌkəl daʊn/
to start working hard seriously
“He needs to knuckle down and finish his homework.”
My Deck-এ যোগ করুন