由于月球没有大气层，它的表面不会受到侵蚀，所以它保留了早期历史的痕迹。

Because the Moon has no atmosphere, its surface is not subject to erosion, so it retains the marks of its early history.

youdao

在早期历史中，芝加哥经常遭遇洪水，街道变得泥泞不堪，行人，马匹还有马车都陷在泥土里出不来。

In its early history, Chicago had floods frequently, making the streets so muddy that people, horses, and carts got stuck.

youdao

它们包含了早期历史情形的真实记忆。

They contain authentic memories of an earlier historic situation.

youdao

This is a course that introduces you to the New Testament literature, but also the history of other material from the very first one hundred years or so of early Christianity.

本课不仅介绍,新约文学，还会介绍其他文献的历史,可以追溯到基督教早期100年左右的时期。

耶鲁公开课 - 新约课程节选

For reading, if you are really curious about some of this early history, I can recommend this book. It is "Mendeleev's Dream."

关于阅读，如果你们真的对,早期的历史很感兴趣的话，我向你们推荐这本书，叫做门捷列夫的梦想“

麻省理工公开课 - 固态化学导论课程节选

I said this course will concentrate on the meaning of these texts in their early historical context.

我说过这门课着重于,这些文本在其早期历史脉络中的意义。

耶鲁公开课 - 新约课程节选