Zoologists wanted to know why a young meerkat would stop using its charm to get free food and begin working for its own food.

动物学家们想要明白，为何年轻的獴会停止用它的魅力来获取免费食物，开始为它自己的食物工作。

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"It's a pain-staking process to get that perfect shot, but now I know why the movies turn out to be so good," Airman Dunk said.

“能够拍摄到完美的场面是一个忍受痛苦的过程，不过现在我知道为什么电影做出来这么好看了，”敦克下士如是说。

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Q: Why doesn’t the woman know what to get for the man’s father?

约翰，我不知道给你的父亲买点什么。 他好像什么都有了，不是吗？

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If you get a chance to see a red sunset over the Sangre de Cristo Mountains of New Mexico, you will know why that southwestern state is called The Land of Enchantment.

VOA: special.2009.08.16

And it makes you want to go get that insurance. I don't know why, but it does.

这让你想去买这家保险。我不知道为什么，但这就是这样。

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To answer that question, we first need to know why people get diabetes in the first place.

CNN: Reversing diabetes is possible

Because when planes get too close together, the FAA needs to know why.

NPR: FAA Accused of Ignoring Safety Warnings

Ms. MESA: I really would to know why - where did they get the problem or where does it come from.

NPR: Calif. Program Helps Rid Triggers of Asthma