The United States national soccer team accomplished what few believed they could Wednesday night in Bloemfontein, dominating the world's number one ranked team and leaving the stadium with a merited 2-0 victory and a ticket to the final of the Confederations Cup on Sunday night in Johannesburg.

VOA: standard.2009.06.24

It eventually outputs a ticket with the right amount, but my God, how many steps does it take for us to get there?

最终它适当地输出了一张票，但是我的天，我们需要多少步骤才能得到？

哈佛公开课 - 计算机科学课程节选

So, you know, I actually paused and tried to lend a hand with this and what struck me at the end of this experience of walking this individual through the process of buying a ticket was actually a recurring theme in my mind for this course.

所以，你们懂的，我停下来帮助了她,令我惊奇的是,这次买票的经历,正是我们这次课程的,一个主题。

哈佛公开课 - 计算机科学课程节选