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

Yellow-covered \Yel"low-cov`ered\, a.
   Covered or bound in yellow paper.

   {Yellow-covered literature}, cheap sensational novels and
      trashy magazines; -- formerly so called from the usual
      color of their covers. [Colloq. U. S.] --Bartlett.