Returns the system color used for displaying text on a dark background.

返回系统的颜色用于在一个黑色的背景上显示文本。

youdao

Refreshing of the statistics runs in the background and the alter FRAGMENT command returns immediately after the alter operation is completed.

统计刷新在后台运行，alter FRAGMENT命令在alter操作完成后将立即返回。

youdao

Because the child process is running in the background, control returns to the shell as soon as the parent dies.

由于子进程在后台运行，父进程一终止，控制即返回到Shell。

youdao

If you're using a tax preparer, Mr. Steber recommends bringing in a couple of previous tax returns for background.

WSJ: Newlyweds, Don't Forget Your Taxes