資料來源 : pyDict

棟梁,屋頂

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Rooftree \Roof"tree`\, n.
   The beam in the angle of a roof; hence, the roof itself.

         Now for me the woods may wither, now for me the
         rooftree fall.                           --Tennyson.

資料來源 : WordNet®

rooftree
     n : a beam laid along the ridge of a roof; provides attachment
         for upper end of rafters [syn: {ridge}, {ridgepole}]