The brooch dates back to the fourth century BC.

胸针可追溯至公元前4世纪。

《柯林斯英汉双解大词典》

One, set forth by Aristotle in the fourth century B.C., sees humans as naturally imitative—as taking pleasure in imitating persons, things, and actions and in seeing such imitations.

亚里士多德在公元前4世纪提出的一个理论认为，人是天生的模仿者——即从模仿他人、事物和行为和观看这些模仿中获得乐趣。

youdao

Because the midpoint of the Medieval Warm Period was about 850, an extension of Bond's cycles would place the midpoint of the next warm interval in the twenty-fourth century.

由于中世纪温暖期的中点约为850年，因此邦德循环的延长将使下一个温暖间隔的中点出现在二十四世纪。

youdao

You hadn't had,yet,the creeds that would try to settle these things for good, like you did in the third and fourth century--the fourth century.

你没有固定的判断标准,可以永远解决这些事情，它不像主后第四世纪。

耶鲁公开课 - 新约课程节选

I think, a collection of epic poems written in Sanskrit that goes back-- it was actually written over a course of 1,000 years and it was completed in the fourth century.

这是本用梵文编著的史诗作品集,可以追溯到...,事实上这本作品的创作时间历时近千年,最终完稿于公元四世纪

耶鲁公开课 - 金融市场课程节选

Then on the other hand, at the other extreme, you have scholars who see the patriarchal stories as entirely fabricated retrojections of a much later age. And they vary significantly as to when they think these stories were written: anywhere from the period of the monarchy all the way down to the fourth century, some of them.

另一方面又是另一个极端，有学者认为族长故事完全是后世编造的,这样一来，对这些故事是什么时候写的,也有巨大的分歧：,其中一些人认为是在从君主制时期,到公元4世纪之间的某段时候。

耶鲁公开课 - 旧约导论课程节选

Alexander the Great made a special trip to Siwa in the fourth century B.

WSJ: Staying at Adr��re Amellal in Siwa, Egypt

And, he had an awareness of who he wanted Riker to be, and what the twenty fourth century would be like.

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Deacon takes his guiding idea from one of my favourite chapters of a classic Chinese philosophical text from the fourth century B.

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