险要

Said in one Chinese podcast line.

• 关城环绕了戈壁沙漠,地势险要

  The city of Guan is surrounded by the Gobi Desert, with a perilous terrain.

  

  文化長河－鐵道行繾綣敦煌

The shows belong to their publishers, and each line plays from the publisher’s own file. Translations are machine-made. Chinese books and courses on Amazon (affiliate link).