这就造成了一个难题：数百万年前消失的特征是如何突然重现的？

And this poses a puzzle: how can characteristics that disappeared millions of years ago suddenly reappear?

youdao

这些案例研究确定了很多重现的问题。

The case studies confirmed that many issues recur.

youdao

Instruction：概述将要在场景中重现的问题。

Instruction: Overview of the problem that will be reproduced in the scenario.

youdao

This is something I'd like you to practice, I'd like you to think about, be conscious of, and it's something we can return to.

这是我想让你们练习，并且希望你们多想想，并且小心注意的，这也是我们能够重现的。

耶鲁公开课 - 现代诗歌课程节选

They were simply evocations, appreciative evocations, of great works of literature.

他只是对著作的再重现，一种让人快乐重现。

耶鲁公开课 - 文学理论导论课程节选

I shouldn't put down a name of a company because I can't reproduce this diagram for Microsoft.

我不应该用这个公司名,因为我没法重现它的数据

耶鲁公开课 - 金融市场课程节选