shì / bīng / men / pái / chéng / yī / zì / zòng / duì / yī / cì / tōng / guò / xiá / zhǎi / de / shān / lù

士兵们排成一字纵队，依次通过狭窄的山路。

The soldiers formed a single file and passed through the narrow mountain path one after another.