不恥下問

Simplified: 不耻下问

On the HSK 7-9 vocabulary list, at CEFR level C1.

bùchǐxiàwèn ㄅㄨˋ ㄔˇ ㄒㄧㄚˋ ㄨㄣˋ

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

Character by character

Sources