丝绸之路青海道在魏晋南北朝时期空前兴盛。

The Silk Road-Qinghai Road was unprecedented flourishing in Wei-jin-nan-bei dynasty.

youdao

丝绸之路青海道在魏晋南北朝时期空前兴盛。

The Silk Road-Qinghai Road was unprecedented flourishing in Wei-jin-nan-bei dynasty.

youdao