because that is a skill that they need to do when they are older, filling out forms and what did one actually look like to get a passport in USA.

因为这是他们将来,必需的技能，填写表格，以及在美国,如何取得护照。

麻省理工公开课 - 媒体、教育、市场课程节选

You're going to work out what firm's demands are going to look like for each possible price they could set.

你们要解出,公司针对每一个其可能设定的价格,它的需求是什么

耶鲁公开课 - 博弈论课程节选