这是我确实要走的唯一理由。

That's the only reason I'm actually going.

《牛津词典》

孩子不应该作弊的理由有很多，但是有些学生确实作弊了。

There are plenty of reasons why a kid shouldn't cheat, but some students do cheat.

youdao

西蒙先生说过他并不反对税收本身，“但我确实反对以无根据或不诚实的理由征税，”他说道。

Mr. Simon said he was not against taxes as such, "but I do object when taxation is justified on spurious or dishonest grounds," he says.

《柯林斯英汉双解大词典》

But once in a while, you know, you will come up with a reason that I just cannot argue with.

但有时候呢,你们确实会想出一些我无法辩驳的理由

耶鲁公开课 - 基础物理课程节选

Suppose that if you--Suppose we believed--we had good reason to believe-- if you really took seriously the thought that you were going to die, you couldn't stop screaming.

假设我们有很好的理由相信-,如果你确实很认真地相信自己会死，你会尖叫不断这个事实。

耶鲁公开课 - 死亡课程节选

All right good. That's a pretty good reason.

很好,这确实是个不错的理由

耶鲁公开课 - 博弈论课程节选