A second government program a tax credit for first-time home buyers has helped the housing market.

VOA: special.2009.11.06

And I'm going to show you an example in a 1 second, just to drive this home, but notice the characteristics. In the first two cases, the problem reduced by 1 at each step.

在前面两个例子里,每一部问题的规模缩小了,不管是迭代的还是递归的，这表明这个问题的复杂性可能是线性的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Second example. Maybe one that'll hit a little more home to you.

第二个例子，可能这个对你们来说,更有震撼力一些。

麻省理工公开课 - 计算机科学及编程导论课程节选

Before you go though, let's just think about it a second, so you can think about it and talk about it at home, so what we just saw was an election in which we saw two candidates, Jean and Claire Elise, who both stood very close to each other.

在你们走之前,再思考一下,这样你们可以在家里思考并讨论,我们刚刚看到的是一个选举,在其中我们看到了两个候选人,吉恩和克莱尔·伊莉斯,她们离得非常近

耶鲁公开课 - 博弈论课程节选