yùn / dòng / yuán / xū / yào / jiè / zhù / shéng / suǒ / cái / néng / pān / yuán / shàng / nà / zuò / dǒu / qiào / de / yán / bì

运动员需要借助绳索才能攀援上那座陡峭的岩壁。

Athletes need ropes to climb up that steep rock face.