Correct

西域

/ xīyù /
Strokes

Definition

Western Regions (Han Dynasty term for regions beyond Yumen Pass 玉门关[yù mén guān])

Example

As a Noun

Western Regions [a Han Dynasty term for the area west of Yumenguan(玉门关), including the present-day Xinjiang, parts of Central Asia and beyond]

1
Zhāngqiān
张骞
tōng
西域

Zhang Qian's missions to the Western Regions