Scientists are still puzzling over exactly how the shoes work.

家们对于该鞋的工作原理仍感到困惑。

Scientists have been puzzling over how to transform surfaces for centuries.

几百年来，家们一直苦思冥想改变表面性质的方法。

Then I came to the question which had seemed to me most puzzling.

这时我提出了最使我迷惑不解的那个问题。

The notion of contingent identity is very puzzling.

偶然同一性是很令人迷惑的。

So, it's very puzzling how it could have obtained this shape.

所以我们始终搞不懂它的形状是怎么形成的。

The fact haven't taken yet is puzzling .

还没有许诺的事实却令人费解。

It can be very puzzling to those around us and to ourselves.

我们的择偶对象有时会使旁人或自己感到相当困惑。

He has been puzzling over the decision for two days.

这个决定让他苦思了两天。

But it was all very puzzling.

但这一切都是令人费解的。

The novel details the disappearance of the orphan Edwin under puzzling circumstances.

这本小说详细描写了诡谲的孤儿 Edwin 失踪案。

" It's awfully puzzling, " said Tootles, who knew the story by heart.

" 这个问题真是太难了。" 嘟嘟说，其实他对这个故事早于心。

If we are especially sensitive, it seems more than puzzling, it is disheartening.

如果我们特别敏感，这似乎不仅令人困惑，而且令人沮丧。

The enigma puzzling Colorado and Nebraska law enforcement in more than a dozen counties.

这个谜团困扰着罗拉多州和内布拉斯加州十几个县的执法部门。

At this point, the United States took the puzzling step of moving against Iraq.

在这时，美国令人费解地展开了对伊拉克的战争。

Why, oh why did he decide to give his fortune away? It's puzzling to me.

为什么，到底是为什么他决定把自己的财富捐出去？我真是想不明白。

The puzzling question was: does one eye know what the other is doing?

一只眼睛知道另一个所做的事情吗?

But sometimes species form in circumstances where no such barriers are apparent. That is puzzling.

但有时物种是在没有明显障碍的情况下形成的。这是令人费解的。

After all, she wasn't reading Melanie's mail to learn Ashley's puzzling and uninteresting ideas.

她毕竟不是要从媚兰的这些信件中了解艾希礼的令人费解而枯燥无味的思想呀。

The origin of life. It remains one of the most puzzling and controversial questions about our Planet.

生命的起源。始终是地球的一个迷。

This problem had been so complicated that philosophers had gone around puzzling over it for generations.

这个问题非常复杂，历代的哲家都为它绞尽脑汁。