Nobody knows the Arctic as well as the locals, which is why they are not content simply to stand back and let outside experts tell them what's happening.

没有人比当地人更了解北极，这就是为什么当地人不满足于不发表任何看法，只让外界的专家来告诉他们发生了什么。

youdao

But it is not innocent ignorance: he wills the untruth, although he knows the troth. But why then does he will the Evil?

但是这种无知并不意味着无辜：他信奉非真理，尽管他知道真理。

youdao

Who knows why. I am not ugly or too weird, ” Sodini wrote on his website on Christmas Eve.

谁知道为什么，我既不难看又不古怪，”Sodini平安夜在博客上写道。

youdao

First, the rate of crossing over is quite variable in women, but not in men, though nobody knows why.

ECONOMIST: Human genetics

Despite the bank's best efforts, economic growth remains a mystery: no one really knows why some countries sustain it over decades and others do not.

ECONOMIST: A paean of faint praise to the World Development Report