"My dear boy," answered the Dormouse to cheer him up a bit, "why worry now?"

“我亲爱的孩子，”土拨鼠为了让他高兴一点，回答说，“现在何必担心呢？”

youdao

Why worry yourself sick?

何苦自寻烦恼？

《新英汉大辞典》

Then why think about it, why worry?

那为什么还想它呢，为什么担心呢？

youdao

That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.

这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000：

麻省理工公开课 - 固态化学导论课程节选

But a point I'm trying to make is, it sounds like anymore computers have gotten so blazingly fast, why should you worry about it?

但是这里我要讲的一点是，在任何一台计算机,都能这么快的运算的情况下，我们还管效率这个问题干嘛呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

And that's precisely why we got to worry about the soul.

这正是我们要担心,灵魂的地方。

耶鲁公开课 - 死亡课程节选

Why worry that we are moving toward a society in which everything is up for sale?

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It makes perfect sense: Why worry about all those details when your friends will do it for you?

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Why worry about these new rules when the estate tax is in flux?

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