You have this standardized form and you've got carbon paper between them and you typed it-- all these really created much more accurate techniques.

你在印有这种标准表格的,纸中间夹上复写纸,接着打印信息-,这些都能使得信息更为准确。

耶鲁公开课 - 金融市场课程节选

And there are two games labeled Game 1 and Game 2.

有两页分别印有游戏1和游戏2的传单

耶鲁公开课 - 博弈论课程节选