Rising costs and an aging population also put extra demand on the system,and this worries health providers, says Kersting.

VOA: standard.2009.09.28

So will we be using the internet for video on-demand, will that be the killer app? Will millions of people wide watch this video right when they want to watch it?

所以我们会使用互联网实现随需视频么，那会成为杀手级应用么？会有数百万人,就在他们想看的时候看到视频么？

麻省理工公开课 - 媒体、教育、市场课程节选

I think so. But video phone has been very hard to achieve. It's either been to be expensive, or too crowded, or can we use the internet to finally introduce video phone and this is different from video on-demand.

我也这么认为，但视频电话要成功很困难,它要么很贵，要么很拥堵，或者我们是否可以使用互联网引入视频电话,这与随需视频是不同的。

麻省理工公开课 - 媒体、教育、市场课程节选

On Demand So, you can click on this. It's On Demand.

你们可以点击，名字是。

麻省理工公开课 - 固态化学导论课程节选

And we did a third thing, which we tried to match this up to the economic intuition about monopoly, and perfect competition, and demand curves, and so on.

我们使用的第三个方法,我们尝试将它和,经济直觉联系起来,如垄断,完全竞争和需求曲线等等

耶鲁公开课 - 博弈论课程节选

The ostensible purpose of this sentence at this point, as I take it, in Milton's argument is to explain the importance of censorship; but surely this sentence has an entirely different effect on us as readers, a different effect than the syntax or the logic of this sentence may demand.

这句话表面上的目的，我认为，是在弥尔顿的论点里解释控制的重要性,但是这个句子却对读者产生了相反的作用，一个和这句话的句式逻辑的要求,不同的影响。

耶鲁公开课 - 弥尔顿课程节选