(SAYING) Venezuelan economist Orlando Ochoa says nationalistic slogans and socialist rhetoric cannot disguise what he sees as a simple truth: that the Chavez model is unsustainable.

VOA: standard.2010.08.06

In other words, we're taking advantage of the fact that we now know that quantity. In the case of the ideal gas we just have a simple model for it.

换句话说，我们可以利用我们已经,了解这个物理量的这个优势,对理想气体我们有一个简单的模型。

麻省理工公开课 - 热力学与动力学课程节选

The way we're going to model differentiated products is to imagine, just to take a simple example, imagine a city and this city has one long straight road through it.

我们建立差异产品模型的方法,想象一下,举个简单的例子,想象一个被一条直路贯穿的城市

耶鲁公开课 - 博弈论课程节选

That was Cartesian space. When I plot r as a distance out from the nucleus that is sort of our simple-minded planetary model. Now let's look at energy.

笛卡尔坐标系，当我用r表示,离原子核的距离时，那只是我们头脑中简单的,类似行星的模型，现在我们看一下能量问题。

麻省理工公开课 - 固态化学导论课程节选

So before we leave it, I've been making a point in this class of coming back to reality from time to time, so this is a very simple model of the soccer game in reality.

在我们结束讨论之前,我来强调一下,我们应该回到现实中,这是一个很简单的足球模型

耶鲁公开课 - 博弈论课程节选