Scientists are still puzzling over exactly how the shoes work.

科学家们对于该鞋的工作原理仍感到困惑。

He has been puzzling over the decision for two days.

这个决定让他苦思了两天。

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

几百年来，科学家们一直苦思冥想改变表面性质的方法。

To puzzle over all this, I'm joined by the FT's US financial commentator, Rob Armstrong.

为了弄明白这些现象，《金融时报》的美国金融评论员罗伯·阿姆斯特朗加入了我的行列。

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

这个问题非常复杂，历代的哲学家都为它绞尽脑汁。

This proved impossible, as he couldn't stop puzzling over what Malfoy was doing that needed lookouts.

结果发现这不可能，因为他忍不住总是在想马尔福到底在做什么事，会需要有人替他放哨。

So instead of wasting time puzzling over the content, I can learn quickly by simply asking my friend.

所以我可以通过询问我的朋友来快速学习，而不是浪费时间因为那个内容而困惑。

He's spent more than two decades puzzling over this star that winked at astronomers nearly 600 years ago.

他花了二十多年的时间，仔细研究这颗曾于600年前在天文学家眼前闪过的星星。

Evolutionary psychologists and cognitive neuroscientists have puzzled over this one.

进化心理学家和认知神经科学家对此感到困惑。

[Narrator] It's a mystery that lots of scientists puzzle over.

- [旁白]这是一个让许多科学家都困惑的谜。