duì / wǔ / zǒu / dào / le / shān / gǔ / de / biān / xiàn / qián / miàn / zhǐ / shèng / xià / dǒu / qiào / de / yán / bì

队伍走到了山谷的边限，前面只剩下陡峭的岩壁。

The group reached the very end of the valley, where only steep cliffs remained ahead.