When Yang and I trekked through Jiulong, they were gone.

当我和杨跋涉穿过九龙时，它们已经不在了。

When the Austro-American explorer Joseph Rock passed through the Hengduan Mountains in 1929, for example, he observed " a conglomeration of tall leaning towers" near an old trading outpost called Jiulong.

比如，在奥裔美国探险家约瑟夫·罗克(Joseph Rock)在1929年穿越横断山脉时，他在一个名为九龙的古老贸易前哨附近发现了“一堆高耸的斜塔”。