But who made the print? Today,we answer that question as we explore the world of printmaking.

VOA: special.2009.09.02

So we looked at a number of fairly small programs that at the end of the day did very little more than print hello world and the like.

这堂课最后,如果我们只是看几个小程序，根本没啥用,还不如hello，world程序呢。

哈佛公开课 - 计算机科学课程节选