line up是什么意思?

意思是: 排队; 准备好; 对齐

例句

Please line up in single file.
请排成一列

The teams are lining up for the big game.
球队正在为重要比赛做准备.

Can you line up the books on the shelf so they're straight?
请将书对齐放在书架上, 使它们成一条线.