knuckle down
/ˈnʌkəl daʊn/
to start working hard seriously
“He needs to knuckle down and finish his homework.”
Ajouter à My Deck
inoh
inoh
/ˈnʌkəl daʊn/
to start working hard seriously
“He needs to knuckle down and finish his homework.”
Ajouter à My Deck