a good teacher and helpful friend; mentor ❍ 在我们当中，他一直是我们的～，受到人人的敬仰。He has always been our good teacher and helpful friend and commanded deep love and reverence among us.
良师益友
good teacher and helpful friend
良师益友liánɡ shī yì yǒu
益：有帮助的。使人得到教导和帮助的好老师、好朋友。a good teacher and helpful friend, mentor, a good teacher as well as a worthy friend