我真是不懂为什么人们会投他的票。

I just don't understand why people voted for him.

youdao

我搞不懂这个问题，为什么这是最好的选择。

We don't understand the problem why this is the best choice.

youdao

我不懂为什么他们需要做体操。

I don't see why they need exercises.

youdao

But, you know why not do something a little special, little different, and they decided instead to use lithium.

但是你懂的，为什么不做的更特殊，更与众不同一些呢？

麻省理工公开课 - 化学原理课程节选

People can't deal with this poem until they can get a handle on the fact that it doesn't rhyme.

人们搞不懂这诗为什么不押韵,就无法理解它。

耶鲁公开课 - 弥尔顿课程节选