Mr.Mugabe blamed the sanctions for Zimbabwe's long-running economic problems.

VOA: standard.2009.09.12

They're running through a loop. It's a common way of thinking about problems.

有继承意义的迭代程序了,它们是以循环的模式来运行的。

麻省理工公开课 - 计算机科学及编程导论课程节选