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

Rough \Rough\, v. t.
   1. To render rough; to roughen.

   2. To break in, as a horse, especially for military purposes.
      --Crabb.

   3. To cut or make in a hasty, rough manner; -- with out; as,
      to rough out a carving, a sketch.

   {Roughing rolls}, rolls for reducing, in a rough manner, a
      bloom of iron to bars.

   {To rough it}, to endure hard conditions of living; to live
      without ordinary comforts.