ex·panse /ɪkˈspæn(t)s/
  寬闊的區域,寬闊
  Ex·panse n.  That which is expanded or spread out; a wide extent of space or body; especially, the arch of the sky. “The green expanse.”
     Lights . . . high in the expanse of heaven.   --Milton.
     The smooth expanse of crystal lakes.   --Pope.
  Ex·panse, v. t. To expand. [Obs.]
     That lies expansed unto the eyes of all.   --Sir. T. Browne.
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  expanse
       n 1: a wide scope; "the sweep of the plains" [syn: sweep]
       2: the extent of a 2-dimensional surface enclosed within a
          boundary; "the area of a rectangle"; "it was about 500
          square feet in area" [syn: area, surface area]
       3: a wide and open space or area as of surface or land or sky