这让我们不禁要问：什么是英雄？

This leads us to ask: what is a hero?

youdao

人们不禁要问：为什么我们不能像对待其他反社会行为一样，把同样的社会规范应用在吃饭、开会和谈话时查看手机的行为上呢？

One has to wonder: why don't we apply the same social norms to checking phones during meals, meetings and conversations as we do to other antisocial behaviors?

youdao

因此我们不禁要问：发生了什么事？

So we have to ask this question: What's happened?

youdao

"Who are you, Socrates," we are inclined to ask, "? "to tell us what we can read here and listen to?"

我们不禁要问：，“你是谁，苏格拉底，究竟想告诉我们该读与该听什么“

耶鲁公开课 - 政治哲学导论课程节选

So, if we write something like this, it implies this kind of equation.

当写出这样一个方程，我们不禁要问。

麻省理工公开课 - 热力学与动力学课程节选

So we have to ask this question: What's happened?

因此我们不禁要问：发生了什么事？

耶鲁公开课 - 弥尔顿课程节选