英语语法分析

Khotan was considered well placed as a mission station.

于阗被认为是作为传教的基地的最好选择。

From the Han period (206 BC - AD 220) jade was obtained from the oasis region of Khotan on the Silk Route.

从汉时期(公元前206 -公元220)玉是从丝绸之路上的绿洲于阗地区获得。

Another reason behind the spike in Khotan jade prices, according to traders, is that jade has become increasingly scarce.

和田玉价格高涨背后的另一个原因是玉石正在变得越来越少，至少这是商人们的说法。