They did hunt and they also raised cereal crops and kept sheep, but we don't know why so many of the paintings are of hunting scenes.

他们确实狩猎，也会种植粮食作物、饲养绵羊，但我们不知道为什么有这么多画与狩猎相关。

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Based on excavations, we can know the layout of the houses and the location of the graves, but we're only guessing when we tried to say why they did it that way.

根据挖掘的情况，我们可以知道房子的布局和坟墓的位置，但是我们试图解释他们这样做的原因时只是瞎猜而已。

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The researchers say they found a link between being overweight and having a poorer memory, but we don't know why.

研究人员表明他们发现体重超重和记忆力差之间的联系，但我们并不知道为什么如此。

youdao

And the question is, so how many pigs does he have, and how many chickens does he have? Wow. What a deep problem, right? But you're going to see why we're going to use this in a second. So you know how to solve this, this is a fifth-grade problem, right?

为了避免歧义，这些猪和鸡都是健全的,现在问题是它到底有多少只猪和鸡呢？,多深刻的一个问题啊，对吗？,但是你将要看到的是,我们为什么要举这个例子,你知道如何解答这个问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

And part of it is mystical-- still not understandable-- but we are going to talk about as much as we know-- why it works and how it works.

一部分是很神秘，仍无法理解-,但我们会谈到我们所知的-,信念为什么会起作用及如何起作用。

哈佛公开课 - 幸福课课程节选

We sort of all know this intuitively but can we articulate why?

我们可能会通过直觉分辨,但是我们能不能清晰地道出原因呢

耶鲁公开课 - 聆听音乐课程节选

Cultural projects can be co-financed by the Commission and regional authorities in the EU, he explained, "but we want to know why this concert benefited this region".

BBC: Elton John gig in Italy probed by EU over funding

We don't know why (someone can tell us if they know) but we do have a solution for you that we found on AVSForums.

ENGADGET: Your DIRECTV H20 running hot? Install a fan HD

"I don't know why, but we love the president very much, " said Housam Azar, a Saidnaya resident and organizer of the town's militia.

CNN: STORY HIGHLIGHTS