List Wang Wei's two frontier poems

if a bicycle wants to ask for directions, it's too late for the country.

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.

a horse in ten miles, a whip in five miles.

All the soldiers were sent to protect the army, and the Xiongnu surrounded Jiuquan.

it's snowing in guanshan, and the bonfire is smokeless.

-west Gansu.