1.
Background paper
背景文件、背景材料
2.
a scenic artist
(舞台的) 背景画家
3.
The background of a shield or one of the divisions of the background.
徽章的背景或背景的一部分.
4.
figure ground segregation
图形背景分离形象背景分离
5.
figure ground perception
图形背景知觉形象背景知觉
6.
Click “backdrop”, choose the right backdrop of this story. Then click it.
单击“背景”，选择符合故事情节的“背景”。找到合适“背景”后请单击它。
7.
a play that is set in Venice.
以威尼斯为背景的剧
8.
Cosmic Background Explorer
“宇宙背景探险者”卫星
9.
background radiation
背景辐射，本底辐射
10.
background limited photodetector
背景限制光电检测器
11.
Open a background picture
打开一个背景图片文件
12.
2) its genetic background or its source;
（二）遗传背景或其来源；
13.
He has a strong political background.
他有强大的政治背景。
14.
Tell me something about your educational background.
告诉我你的教育背景。
15.
all scarlet with blossom set off beautifully by the sunset.
它在夕阳的背景下定格。
16.
Look into sb.'s background
调查某人的背景情况
17.
check(up)on sb ;investigate sb's behaviour,background,etc
调查某人的行为、背景等
18.
soft X-ray diffuse background of galactic origin
银河软Ｘ射线弥漫背景