资料来源 : Webster's Revised Unabridged Dictionary (1913)

Gre \Gre\, n.
   See {Gree}, a step. [Obs.]

Gre \Gre\, n.
   See {Gree}, good will. [Obs.]

资料来源 : Free On-Line Dictionary of Computing

GRE
     
        {Generic Routing Encapsulation}