熟练地爬到一堵大型登山墙的顶部 Skillfully climbing to the top of a large mountaineering wall

一位经验丰富的登山运动员熟练地爬上一堵由绳索和挽具固定的大型登山墙的顶部。

Experienced mountaineer skillfully climbing to the top of a large mountaineering wall, secured by rope and harness.