由于一些尚不完全清楚的原因，该领域本身大约每隔百万年就会周期性地翻转一次。

For reasons not fully understood, the field itself reverses periodically every million years or so.

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新建的州立学院和大学几乎完全投身于科学、技术和工程领域。

Newly created state colleges and universities devoted themselves almost entirely to scientific, technological, and engineering fields.

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但是，为人们仍无法完全了解领域的基础研究买单是不太可能的。

But it is unlikely to pay for fundamental research in what is still an imperfectly understood field.

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This is one of the very important areas that still is not completely understood in stem cell biology.

这是一个干细胞生物学领域的重要课题,至今仍未完全明确

耶鲁公开课 - 生物医学工程探索课程节选

There are relevant and interesting fields of discourse and there are completely irrelevant fields of discourse, and some of these fields are on the sides of angelic discourse and some of these fields are on the side of the demonic.

有和话语相关的有趣的领域,也有完全不相关的领域，一些领域有如天使一般,而另一些则如恶魔。

耶鲁公开课 - 文学理论导论课程节选

I mean, quantum mechanics makes sense to no human being, in my view. In those areas, people are inclined to do sort of strange things.

我的意思是在我看来，量子力学对人类完全没有意义，在那些领域，人们总是倾向于,去做有些奇怪的事情。

耶鲁公开课 - 金融市场课程节选