我知道我需要重新证明自己。

I know I have to prove myself.

youdao

在那个平和的地方，我知道我需要做什么。

From this place of stillness, I knew what I needed to do.

youdao

我知道我需要一些东西。

I knew I needed something.

youdao

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

So it's by no means do I mean to suggest, "Oh, here's everything you need to know about the subject."

所以我绝不是在暗示,关于这个话题,你需要知道的就这么多

耶鲁公开课 - 死亡课程节选

I didn't even need to know that heat capacity of the product, right. Because it's effect the thermal mass of the product is negligible compared to the thermal mass of the calorimeter.

我甚至不需要知道生成物的,热容是多少，因为生成物的,热质量的作用相比于,量热计的热质量是可以忽略的。

麻省理工公开课 - 热力学与动力学课程节选