at one's mother's knee
US /æt wʌnz ˈmʌðərz niː/
UK /æt wʌnz ˈmʌðərz niː/

1.
fin da piccolo, in grembo a sua madre
from a very early age; from childhood
:
•
He learned to play the piano at his mother's knee.
Ha imparato a suonare il pianoforte in grembo a sua madre.
•
She was taught good manners at her mother's knee.
Le sono state insegnate le buone maniere in grembo a sua madre.