back·ground /ˈbækˌgraʊnd/
 背景背景,後臺


 background
 底色反射


 background
 背景; 底色 BKGRD


 Background
 背景 BG


 background
 後台 背景 底色


 back·ground n.
 1. Ground in the rear or behind, or in the distance, as opposed to the foreground, or the ground in front.
 2. Paint. The space which is behind and subordinate to a portrait or group of figures.
 Note: ☞ The distance in a picture is usually divided into foreground, middle distance, and background.
 3. Anything behind, serving as a foil; as, the statue had a background of red hangings.
 4. A place in obscurity or retirement, or out of sight.
    I fancy there was a background of grinding and waiting before Miss Torry could produce this highly finished . . . performance.   --Mrs. Alexander.
    A husband somewhere in the background.   --Thackeray.
 To place in the background, to make of little consequence. To keep in the background, to remain unobtrusive, inconspicuous or out of sight; -- of people. deep background, Journalism the status of an interview which must not be quoted in a publication, even without attribution.  Compare background8.

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 background
      n 1: a person's social heritage: previous experience or training;
           "he is a lawyer with a sports background"
      2: the part of a scene (or picture) that lies behind objects in
         the foreground; "he posed her against a background of
         rolling hills" [syn: ground]
      3: information that is essential to understanding a situation
         or problem; "the embassy filled him in on the background
         of the incident" [syn: background knowledge]
      4: extraneous signals that can be confused with the phenomenon
         to be observed or measured; "they got a bad connection and
         could hardly hear one another over the background signals"
         [syn: background signal]
      5: relatively unimportant or inconspicuous accompanying
         situation; "when the rain came he could hear the sound of
         thunder in the background"
      6: the state of the environment in which a situation exists;
         "you can't do that in a university setting" [syn: setting,
          scope]
      7: (computer science) the area of the screen in graphical user
         interfaces against which icons and windows appear [syn: desktop,
          screen background]
      8: scenery hung at back of stage [syn: backdrop, backcloth]
      v : understate the importance or quality of; "he played down his
          royal ancestry" [syn: play down, downplay] [ant: foreground,
           foreground]