良师益友

良師益友
liángshīyìyǒu
good teacher and helpful friend (idiom); mentor

CEDICT

good teacher and helpful friend; mentor

Wiktionary

称美才德出众，可兼为师友的人。

重編國語辭典

使人得到教益跟帮助的老师和朋友。

維基詞典

Entry Composition

1 良师 liángshī
  1. (literary) great teacher; outstanding teacher
  2. great teacher; outstanding teacher
2 益友 yìyǒu
  1. helpful friend
  2. wise companion