As a stopping point on the famous Silk Road, Loulan is believed to have been gradually covered over by sandstorms from AD 200 to AD 400.

楼兰是著名的丝绸之路的一个中转站，据说在公元200年至公元400年期间，它逐渐被沙尘暴覆盖。

Sandstorms are common during the Saudi Arabian winter.

在沙特阿拉伯的冬季期间内沙暴很常见。

The area used to be struck by raging sandstorms.

这个地区过去风沙猖獗。

Sandstorms are strong, dry winds that carry sand.

沙尘暴是带有沙石和尘土的强大而干燥的风。

They had to contend first with wind and sandstorms.

他们首先得同狂风和沙暴作斗争。