"We need to learn from this episode and act quickly to fix the flaws in our system because our security is at stake and lives are at stake,".

VOA: standard.2009.12.29

And in these experiments we not only need to learn what has been learnt, but also have to learn what it is that we don't know.

在这些试验里我们不仅,要知道已知的知识，还要知道,我们不知道的内容。

麻省理工公开课 - 媒体、教育、市场课程节选

Not all the technologies that we need to help people To learn better are necessarily available today.

我们今天还不能获得所有我们需要的技术,用来帮助人们更好地学习。

麻省理工公开课 - 媒体、教育、市场课程节选

We are going to need more local lives. We are going to need to learn to live in our own economies.

VOA: standard.2010.04.21

But at this point,you begin to wonder, maybe we just need to learn to live with it.

但在这个点上，你会想，也许我们就要学会接受这个现实。

耶鲁公开课 - 死亡课程节选

But once we got to the atomic size scale, what happens is we need to be taking into account the fact that matter has these wave-like properties, and we'll learn more about that later, but essentially classical mechanics does not take that into account at all.

但一到到了原子尺度量级，我们必须考虑到物质,这时候有波动性质,关于这点我们今后将会学到更多,但本质上经典力学并,没有考虑这个性质。

麻省理工公开课 - 化学原理课程节选

We want to make sure that if the students would not to be given the time out to learn, we need to provide a vehicle or that they can take the advantage of learning in their world context to actually put the theory into practice.

为了确认学生是否会,腾出时间学习，我们需要提供一个工具,让他们在生活的情境中,利用学习,将理论用于实践。

麻省理工公开课 - 媒体、教育、市场课程节选