The runoff election between incumbent President Hamid Karzai and his main challenger, former foreign minister Abdullah Abdullah faces multiple challenges: Taliban intimidation, voter apathy and cynicism, increasingly harsh winter weather, and,most of all,a turnaround time of only two weeks.

VOA: standard.2009.10.28

On following weekend we will be doing sectioning that gives you a very short of turnaround time.

下个周末我们会做分组任务,给你们的周转时间就非常少了。

哈佛公开课 - 幸福课课程节选