如果消费者表示他们想要信息透明，那就告诉他们你的产品里到底有什么。

If consumers say they want transparency, tell them exactly what is in your product.

youdao

这到底有什么关系？

What does it matter, after all?

youdao

我们有确凿无疑的证据证明到底发生了什么。

We have incontrovertible evidence of what took place.

《柯林斯英汉双解大词典》

So, let me go had and let's swivel this around for just a moment so we have a blank slate and now what's really going on?

我把它旋转一下,这样就有一块空白了,到底发生了什么呢？

哈佛公开课 - 计算机科学课程节选

What in the world does that have to do with my divisor example? Well, actually, before I do that let me in fact fill in a piece here.

那么这到底跟我的除数的例子有什么关系呢？,好，实际上，在我讲之前请我先来补充一点，大家还记得我说过,我们可以概念上认为。

麻省理工公开课 - 计算机科学及编程导论课程节选

There may be some inefficiencies, and at some point, if you catch me in the hallway, I can give you a sermon on what goes on inside that reactor.

可能会有某些损耗，如果你能在过道上遇到我的话，我会给你详细讲讲,里面到底发生了什么。

麻省理工公开课 - 固态化学导论课程节选