If I know about the states involved, I just need to know what the volume was in each of them.

我们并不需要知道一条特定过程的路径，如果我们知道所涉及的态,我仅仅需要知道这些态的体积。

麻省理工公开课 - 热力学与动力学课程节选

For me, that's all I really need. I like to walk around the streets with a camera and just find interesting images, you know.

对我来说，这都是很好的取景。我喜欢走在街上，随时抓拍有意思的事物。

问摄影家 - SpeakingMax英语口语达人

There's the base case. If it's longer than one, what do I want to do? Well I'd like to check the two end points to see are they the same character? And if they are, then oh, I just need to know is everything else in the middle a palindrome?

如果只有一个元素也是回文，这是基本事件,如果比一个长的话那么我应该怎么做？,我将会查看两头是否相同？,如果是的,我只要知道中间剩下的部分是不是回文即可？

麻省理工公开课 - 计算机科学及编程导论课程节选

And I just have to do this today on the Greco-Roman world, tell you everything you need to know about the Greco-Roman world, at least for this semester.

今天要讲的古希腊罗马时代，告诉你们所有需要了解的古希腊罗马知识，至少这学期需要了解的知识。

耶鲁公开课 - 新约课程节选

But I just need to realize that, you know, people are going to enjoy it.

但我只需要认识到一点，那就是人们会喜欢它的。

肉品市场区的作家 - SpeakingMax英语口语达人

Computing square root. I'm going to capture it in a piece of code, I'm going to be able to refer to it by a name, and I'm going to suppress the details, meaning inside of that computation, you don't need to know what it does. You just need to know, if I give it the right kind of input, it'll give me back an input that satisfies the contract that I set up.

比如计算平方根,我会用一段代码来说明,我将给它命名,并且忽略细节,意思就是在这一段计算过程中,你不用知道它做了什么，你只需知道，如果我进行了正确的输入,它将会给我符合条件的输出。

麻省理工公开课 - 计算机科学及编程导论课程节选