这座古城在一个时期准是很繁荣的，因为它曾享有高度文明。

The city at one time must have been prosperous, for It enjoyed a high level of civilization.

youdao

这座古城在一个时期准是很繁荣的，因为它曾享有高度文明。

The city at one time must have been prosperous, for It enjoyed a high level of civilization.

youdao