Yes, that is just why they exist.

是的，那正是它们得以存在的原因。

youdao

We all know we can't live without water, but just why is it so important?

我们都知道我们不能离开水，但是为什么它如此重要呢？

youdao

I seriously doubt you're designing a system like this, but it's good to remember just why we don't structure code this way.

我真的怀疑你正在像这样设计一个系统，但是最好记得为什么我们不应该这样去构建代码。

youdao

why,when we do not sleep, we do not function well. We just do not know much about sleep at all."

VOA: special.2009.08.26

We might wonder, well, just why is it that the body can't grasp the forms?

我们可能会想,为什么肉体就不能认知型相

耶鲁公开课 - 死亡课程节选

But for me, I like to look at something and just say, "I like this. I don't really know why though."

但对我来说，我喜欢看着某个东西，然后说，“我喜欢这个。但我也不知道为什么。”

关于现代美术 - SpeakingMax英语口语达人

Still, bizjets cost way too much, and just why that is could fill a book.

FORBES: Cheap Jet Update

This brief discussion should show just why the study of hip hop is so critical.

NPR: Author Comes to Hip-Hop Music's Defense

But just why Nicole felt she was a target is yet another unknown.

BBC: US woman Nicole Mansfield 'brainwashed' into Syria fight