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

Learn \Learn\, v. i.
   To acquire knowledge or skill; to make progress in acquiring
   knowledge or skill; to receive information or instruction;
   as, this child learns quickly.

         Take my yoke upon you and learn of me.   --Matt. xi.
                                                  29.

   {To learn by heart}. See {By heart}, under {Heart}.

   {To learn by rote}, to memorize by repetition without
      exercise of the understanding.