资料来源 : pyDict

门阶

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

Perron \Per"ron\, n. [F.] (Arch.)
   An out-of-door flight of steps, as in a garden, leading to a
   terrace or to an upper story; -- usually applied to
   medi[ae]vel or later structures of some architectural
   pretensions.