We won't talk about the BCS rankings, though So the idea here is a pretty simple one.

我们并不是在说英国计算机协会排名,所以我们要讲的概念很简单。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now let's talk about some simple observations on isothermal gas expansions.

接下来我们讨论几条,关于绝热膨胀的性质。

麻省理工公开课 - 热力学与动力学课程节选

An insurance policy--the concept is very simple, we could talk about fire insurance or life insurance.

保单的概念其实很简单，我们可以谈谈火灾保险，或者人寿保险。

耶鲁公开课 - 金融市场课程节选

Well let's talk about some mechanisms for using this and I'll start with a simple example of how one can detect a gene in a fluid, in a blood sample for example, where that gene is unknown.

我们来说说这项技术在实际应用中的机制,先从一个简单例子着手,如何在一个血样中,侦测是否存在某段基因序列,某段未知基因序列

耶鲁公开课 - 生物医学工程探索课程节选