"Everyone's unemployment rates have gone up in the past year, year and a half.

VOA: standard.2010.08.10

Okay so exchange numbers; okay good half of that problem is gone now we have just these two left.

好，交换数字,好，问题解决一半了,只剩你们两个了。

哈佛公开课 - 计算机科学课程节选