Judge Wright says the cost of gathering lots of scientific evidence can limit the use in real-life trials.

VOA: special.2009.08.31

I think that if Ford and other car companies didn't use cost-benefit analysis, they'd eventually go out of business because they wouldn't be able to be profitable and millions of people wouldn't be able to use their cars to get to jobs, to put food on the table, to feed their children.

我觉得要是福特和其他汽车公司,不使用成本效益分析的话，他们最后就会倒闭,因为他们无法盈利,这样就会有数百万人无法开车上班，没法赚钱，养不起小孩。

耶鲁公开课 - 公正课程节选

Once we have those classrooms, the stuffing cost is to be designed to be the same as what we currently use in personal physics.

一旦我们建成这些教室，其他的人员成本应该,和现在投入到物理教学,所用的成本一致。

麻省理工公开课 - 媒体、教育、市场课程节选

Also,there is the cost to train teachers to use digital textbooks effectively.

VOA: special.2009.08.27

Let me finish the picture here; here's my demand curve, here's my constant marginal cost at c, and I want to use this picture on the left now to figure out what the monopoly quantity is.

先把图画完,这条是需求曲线,这个是边际成本常量c,下面我们通过左边的图像,来找出垄断产量

耶鲁公开课 - 博弈论课程节选

"So what that means is, in terms of cost, is you can use And that's potentially very significant."

VOA: standard.2010.02.19

Once I have it sorted I can search it in log n time, but that's still isn't as good as just doing n. And this led to this idea of amortization, which is I need to not only factor in the cost, but how am I going to use it?

一旦对其完成排序,就可以在log，n的时间内对其完成搜索,但是这样做仍然不如n的复杂度,这样做引出了耗时分摊的想法,这时不仅需要考虑耗时的因素？

麻省理工公开课 - 计算机科学及编程导论课程节选

O'Connor says cost could be a factor in deciding to use this treatment.

VOA: standard.2010.08.11

How much does it cost both to create the technology and to use it?

创造新技术和使用它,分别需要花多少钱？

麻省理工公开课 - 媒体、教育、市场课程节选