If I charged the reactor in this manner, and of course I'm assuming 100% completion of the reaction which we know is overly optimistic.

如果我们这样来考虑这个反应的前提，就是我们假设,反应完全进行,我们知道这有些过于乐观了。

麻省理工公开课 - 固态化学导论课程节选

That may or may not work -- I'm not optimistic -- but at least it's the same idea. We're changing payoffs.

这似乎无济于事,我对此也并不乐观,但至少我们得承认,它改变了收益

耶鲁公开课 - 博弈论课程节选

I'm optimistic about the audio equipment and about our slide material and things such as that.

我对我们的音响设备,和我们的投影材料等都很有信心

耶鲁公开课 - 聆听音乐课程节选

Now, for myself, I'm sufficiently optimistic that I'm inclined to think life's wonderful.

现在，对我自己来说，我足够乐观地倾向于认为生命是美好的。

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I'm frankly not that optimistic about that part of it.

我对此并不抱很大希望。

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All right, so I'm going to be optimistic.

好了，我现在乐观假设。

耶鲁公开课 - 死亡课程节选