The final project for this course, as you know is a presentation that you'll give whether it's for the students or the extension school students.

这门课的最后一份作业，是由你们做一次报告,选修和专修学生都要做。

哈佛公开课 - 幸福课课程节选

When you're working on your homework assignments, if your product, the thing you hand in was just S1 + S2, then you might think what?

比如你们两个人交一份作业,你们交上来的只是S1+S2,那你会怎么想

耶鲁公开课 - 博弈论课程节选