You need to be able to read that code and understand it as well as write your own.

你需要有能力,像编写,解读并理解那些代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

Something that you need other people to understand needs to happen.

你需要其他人明白这些事必定会发生。

It's important 课堂 - SpeakingMax英语口语达人

But what you need to understand about the Greeks is that they don't eat a lot of meat.

但是你们需要理解的是,希腊人并不常食肉

耶鲁公开课 - 古希腊历史简介课程节选

Again, you probably didn't come expecting to hear about farming, but farming is where the food starts and we need to understand that world.

同样地,你们可能没听说过农业,农业是食品的起点,我们需要了解这个领域

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We'll talk about some chemistry today, what DNA molecules are like, why they have the behavior that they do, and you need to understand this in order to understand how you manipulate DNA.

今天我们会谈到一些化学结构,比如DNA分子的形态,它们为什么会以这种形态存在,你必须先掌握这些,才能理解如何操控DNA

耶鲁公开课 - 生物医学工程探索课程节选

Another thing that you need to understand about these farms, if you're going to grasp their significance for the society that will come, is that they are small, really small.

关于这些农场,另一点要搞清楚的是,如果你要理解它们,所带来的社会意义,那是很细微和缓慢的

耶鲁公开课 - 古希腊历史简介课程节选