资料来源 : pyDict

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

Expand \Ex*pand"\, v. t. [imp. & p. p. {Expanded}; p. pr. & vb.
   n. {Expanding}.] [L. expandere, expansum; ex out + pandere to
   spread out, to throw open; perh. akin to E. patent. Cf.
   {Spawn}.]
   1. To lay open by extending; to open wide; to spread out; to
      diffuse; as, a flower expands its leaves.

            Then with expanded wings he steers his flight.
                                                  --Milton.

   2. To cause the particles or parts of to spread themselves or
      stand apart, thus increasing bulk without addition of
      substance; to make to occupy more space; to dilate; to
      distend; to extend every way; to enlarge; -- opposed to
      {contract}; as, to expand the chest; heat expands all
      bodies; to expand the sphere of benevolence.

   3. (Math.) To state in enlarged form; to develop; as, to
      expand an equation. See {Expansion}, 5.

资料来源 : WordNet®

expanded
     adj : increased in extent or size or bulk or scope [ant: {contracted}]