道义之交

Explanation: Attn: friendship, friendship. Moral sense of justice and friendship exchanges. Means to help each other and support each other's friends. 　　Source: Qing Li, Green Park "Qiludeng" moral back to the turn of the thirty-eighth, only this is enough, why even medium medium. " 　　Examples: ~, Only this is enough, why even medium medium. (Ching Lee Green Park "Qiludeng" Thirty-eighth back)