资料来源 : pyDict

栋梁,屋顶

资料来源 : 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.

资料来源 : WordNet®

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