And our goal over the next couple of lectures, is basically to give you a sense of this.

我们接下来几节课的目标，就是给你一个关于效率的基本认识。

麻省理工公开课 - 计算机科学及编程导论课程节选

And our goal is to grade those things and get them back to you the following day.

我们的目标是给这些东西打分,使你在接下来的日子里，解决他们。

麻省理工公开课 - 固态化学导论课程节选