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

VOA: special.2009.08.27

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

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

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

VOA: standard.2010.08.11

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

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