良师益友的意思：
意为使人得到教益和帮助的好老师和好朋友，用于形容和自己亦师亦友的朋友。出自《论语·述而》《论语·季氏》。近义词：情同手足、莫逆之交。反义词：一丘之貉、狐群狗党。
英文解释
good teachers and helpful friends;be one's good teachers and friends;a scholarly mentor and beneficial friend;mentor ;
【出自】：《论语·述而》：“三人行必有我师焉，择其善者而从之，其不善者而改之。”《论语·季氏》：“益者三友，损者三友。友直、友谅、友多闻，益矣;友便辟、友善柔、友便佞，损矣。”
【示例】：和一位缔交半个多世纪的～诀别，悲痛之情是难以尽述的。
◎夏衍《知公此去无遗恨——痛悼郭沫若同志》
【语法】：联合式;作主语、宾语、定语;含褒义
【近义词】：情同手足、莫逆之交
【反义词】：一丘之貉、狐群狗党
语法：联合式;作主语、宾语、定语;含褒义
示例：
和一位缔交半个多世纪的～诀别，悲痛之情是难以尽述的。
(夏衍《知公此去无遗恨——痛悼郭沫若同志》)
中英例句
那么你是把他归类于良师益友?
So you saw him as a mentor of sorts?
那个人是一个华尔街的图标。他是我的良师益友。
That man was an icon of wall street.he was a mentor to me.
有时候我感到勇气尽失，而且脾气恶劣，我的坏脾气甚至指向了苏立文小姐，而在我所有的良师益友当中，她是唯一一个能抚平我内心伤痛的人，她能够“将曲线捋直，令崎岖之地变成坦途”。
Sometimes I lost all courage and betrayed my feelings in a way I am ashamed to remember, especially as the signs of my trouble were afterward used against miss sullivan, the only person of all the kind friends I had there, who could make the crooked straight and the rough places smooth.