[no obj., with adverbial of direction]descend a rock face or other near-vertical surface by using a doubled rope coiled round the body and fixed at a higher point 绕绳下降 [as noun abseiling]facilities for abseiling and rock climbing. 绕绳下降及攀岩工具。
noun
a descent made by abseiling 绕绳下降
派生 abseiler noun 语源
1930s: from German abseilen, from ab 'down' + Seil 'rope'