我想看看发生了什么事——他们这样鬼鬼祟祟的。

I wanted to see what was up--they sneaked along so.

youdao

他们太小，不明白在发生什么事。

They are too young to understand what is going on.

《柯林斯英汉双解大词典》

他们问发生了什么事。

They asked for what happened.

youdao

It's a beautiful theory to assume, to see what would happen if they did.

但是这是个非常理想的假设，用于判断如果他们这样做了会发生什么事。

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And you'll be able to tell them when it occurs, how it happens, what it's related to.

而且你还可以告诉他们这事发生的时间、怎么发生的，以及它与什么事情有关。

I get so upset 课堂 - SpeakingMax英语口语达人