中国古代南北存在着地区上的差异，而这种差异大致是以淮河为分界的。

The south and the north in ancient China were approximately divided by the Huaihe River.

youdao

中国古代南北存在着地区上的差异，而这种差异大致是以淮河为分界的。

The south and the north in ancient China were approximately divided by the Huaihe River.

youdao