不恥下問

not feel ashamed to ask and learn from one's subordinates

no; not so / (bound form) not; un-

shame / disgrace

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action

to ask / to inquire

to ask; to inquire