| 单词 | background | 
| 释义 | background1 of 2noun  back·ground  ˈbak-ˌ(g)rau̇nd   often attributive   1   a     : the scenery or ground behind something  a picture of her son with mountains in the background  background scenery for the play    b    art   : the part of a painting representing what lies behind objects in the foreground  dark shadows in the background of the painting    c     : an image that displays on a computer screen underneath the various available icons and windows  using a family photograph as her computer background   2    : an inconspicuous position  shy people who try to stay in the background   3   a     : the conditions that form the setting within which something is experienced  … set in a background of tropical luxuriance.    b(1)     : the circumstances or events antecedent to a phenomenon or development  the economic background of the American Civil War  took place against a background of increasing tension    (2)     : information essential to understanding of a problem or situation  background information    c     : the total of a person's experience, knowledge, and education  comparing the candidates' backgrounds  ran a background check to make sure she had no criminal record   4   a     : intrusive sound or radiation (see radiation sense 2b) that interferes with received or recorded electronic signals  a recording with a lot of background noise    b    physics   : a more or less steady level of noise above which the effect (such as radioactivity) being measured by an apparatus (such as a Geiger counter) is detected    especially : a somewhat steady level of radiation in the natural environment (as from cosmic rays)   5    : a level of computer processing at which the processor uses time not required for a primary task to work on an additional task   compare foreground entry 1   background 2 of 2verb  backgrounded; backgrounding; backgrounds    transitive verb 1    : to provide with background  … a richly backgrounded study of a silent movie star …   2    : to give less attention or emphasis to (something) : to place (something) in the background  Graham peoples her novel with genuine, endearing characters and keeps the grisly murders tactfully backgrounded …    background noun1  as in backdrop   the physical conditions or features that form the setting against which something is viewed they got married on a mountain top with the sunset as background   Synonyms & Similar Words Relevance     
 Antonyms & Near Antonyms 
 2  as in setting   the place and time in which the action for a portion of a dramatic work (as a movie) is set the background of that movie is the World War II era   Synonyms & Similar Words 
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