唯一肯定的事，我们对企业的未来知道的是，它是不确定的。

The only sure thing we know about the future of business is that it is uncertain.

youdao

它是由恐惧驱动的，而随着资金问题和不确定性进一步突出，它正在制造更多的恐惧。

It has been driven by fear, and it is creating even more fear as money problems and uncertainty grow.

youdao

我不确定它是否适合你，但如果你的老板很好，那也不错。

I am not sure if it'll suit you, but it's pretty cool if your bosses are right.

youdao

This was very big in an ad campaign at least last year, I'm not sure if it still is, with the little butterfly.

它的广告宣传做得很大，至少在去年是这样的，我不确定它现在还是不是，它这里有一个小蝴蝶。

麻省理工公开课 - 化学原理课程节选

FAO Schwarz is a big deal toy store here and I'm not sure if it's on Fifth Avenue, maybe...

AO Schwarz 玩具店是这边一个很大的玩具零售店，我不确定它是不是在第五大道，也许是吧……

小心超额消费 - SpeakingMax英语口语达人

So you can see that we're starting to have a very complicated equation, and it turns out that it's mathematically impossible to even solve the exact Schrodinger equation as we move up to higher numbers of electrons.

所有你们可以看到我们得到了,一个非常复杂的方程，结果是它在数学上是,不可能解出确定的,薛定谔方程,当我们考虑更高的电子数目的时候。

麻省理工公开课 - 化学原理课程节选