资料来源 : pyDict

二,两,一对

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

Twain \Twain\, a. & n. [OE. twein, tweien, tweyne, AS.
   tw[=e]gen, masc. See {Two}.]
   Two; -- nearly obsolete in common discourse, but used in
   poetry and burlesque. ``Children twain.'' --Chaucer.

         And whosoever shall compel thee to go a mile, go with
         him twain.                               --Matt. v. 41.

   {In twain}, in halves; into two parts; asunder.

            When old winder split the rocks in twain. --Dryden.

   {Twain cloud}. (Meteor.) Same as {Cumulo-stratus}.

资料来源 : WordNet®

twain
     n : two items of the same kind [syn: {couple}, {pair}, {twosome},
          {brace}, {span}, {yoke}, {couplet}, {distich}, {duo}, {duet},
          {dyad}, {duad}]

资料来源 : Free On-Line Dictionary of Computing

TWAIN
     
         An {image capture} {API} for {Microsoft
        Windows} and {Apple Macintosh} {operating systems}.  The
        standard was first released in 1992, and is currently ratified
        at version 1.9 as of January 2000.  TWAIN is typically used as
        an interface between {image processing} software and a
        {scanner} or {digital camera}.
     
        The word TWAIN is from Kipling's "The Ballad of East and West"
        - "...and never the twain shall meet...", reflecting the
        difficulty, at the time, of connecting scanners and personal
        computers.  It was up-cased to TWAIN to make it more
        distinctive.  This led people to believe it was an acronym,
        and then to a contest to come up with an expansion.  None were
        selected, but the entry "Technology Without An Interesting
        Name" continues to haunt the standard.
     
        {Home (http://www.twain.org/)}.
     
        (2000-02-25)