an experienced and trusted adviser
(经验丰富值得信赖的)导师;指导者
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he was her friend and mentor until his death in 1915. 直到1915年他去世为止,他一直是她的良师益友。
an experienced person in a company, college, or school who trains and counsels new employees or students
师傅;导师;指导者。
to advise or train (someone, especially a younger colleague)
指导;培训(某人,尤指年龄更小的同事)。
"mid 18th cent.: via French and Latin from Greek