西域

zhāng qiān chū shǐ xī yù

张骞出使西域

Zhang Qian's missions to the Western Regions

xī yù yōu měi de qǔ diào hé yuè qì

西域优美的曲调和乐器

the melodies and musical instruments of the Western Regions

xī yù dū hù

西域都护

the Western Regions frontier command