最后是双胞胎，他们无法被描述，因为我们肯定会描述错一个。

Last come the Twins, who cannot be described because we should be sure to be describing the wrong one.

youdao

除非我们有才华横溢，并且愿意努力工作，否则我们肯定会在这些工作中失败。

Unless we have great talent and are willing to work very hard, we are certain to fail in these occupations.

youdao

我们肯定会从你的工作中得到益处。

Surely we'll profit from your work.

《新英汉大辞典》

Third question that might interest us, that does interest us, is this: If it survives, how long does it survive?

第三个问题我们也许会感兴趣,我们肯定会感兴趣,那就是,如果灵魂活下来,它会活多久

耶鲁公开课 - 死亡课程节选

I think she will like what we're planning.

我觉得她肯定会喜欢我们的计划的。

Can 实战 - SpeakingMax英语口语达人

And if we wish to continue this analogy, and I certainly do, between the poet Milton and the virgin Lady, we can see that this is a release that John Milton the poet has been waiting some time for.

如果我们希望继续这个弥尔顿的诗与小姐贞操的类比，我肯定会，我们可以看到,这是弥尔顿的诗等了很久的一种解脱。

耶鲁公开课 - 弥尔顿课程节选