Writing ancient poems about China's frontier customs

When a bicycle wants to ask about the border, it belongs to the country and has lived for a long time.

collect the wild goose from Hansai and return it to Hu Tian.

the desert is lonely and straight, and the long river sets the yen.

Xiao Guan is always riding in Yanran.

Wang Zhihuan in Tang Dynasty

The Yellow River is far above the white clouds, and it is a lonely city, Wan Ren Mountain.

why should Qiangdi blame the willow? The spring breeze doesn't pass Yumenguan.