To understand the most important characteristics of a society, one must study its major cities.

要了解一个社会的最重要特征，人们必须研究它的主要城市。

youdao

To understand the most important characteristics of a society, one must study its major cities.

要了解一个社会的最重要特征，人们必须研究它的主要城市。

youdao