预约成功
background
n.背景;经历;幕后;后景
vt.提供背景
例句：用作名词 (n.)
He has a strong political background.
他有强大的政治背景。
It is wrong to differentiate between people according to their family background.
根据出身不同而区别待人是不对的。
用作及物动词 (vt.)
To background themselves, reporters dug through all available files on the case.
为掌握有关背景资料,记者们搜集了对此案有关的可获得的所有文件资料。
