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

Optimistic people, and again, not Pollyannaish detached optimism, but grounded optimists, on average, live significantly longer.

乐观的人，不是指盲目的乐天派，而是脚踏实地的乐观主义者，平均而言，明显更加长寿。

哈佛公开课 - 幸福课课程节选

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

我对此并不抱很大希望。

普林斯顿公开课 - 国际座谈会课程节选

It's optimistic, but not wildly optimistic.

是乐观，但不是过于乐观。

耶鲁公开课 - 死亡课程节选

m not that as optimistic in predicting how things would get wonderful in a couple of years.

嗯，我倒不是那么乐观，Well，，I’,觉得情态会转好,在未来几年时间里。

斯坦福公开课 - 经济学课程节选

That's not too wildly optimistic.

也不是过于乐观。

耶鲁公开课 - 死亡课程节选