rappel

詳細解釋：

rap.pel

n.（名詞）
The act or method of descending from a mountainside or cliff by means of a belayed rope that is passed under one thigh and over the opposite shoulder so that it can be payed out smoothly and gradually.
繞繩下降：從山坡或懸崖上下來時的一種行為或方法，把一根拖長的繩子繞在一條大腿和相反的肩膀上，最後能逐漸順利地下山
v.intr.（不及物動詞）
rap.pelled,rap.pel.ling,rap.pels
To descend from a steep height by this method.
繞繩下降：用這種方法從陡峭的高處下來

來源：
French [recall, return, rappel]
法文 [回憶，回去，繞回]
from Old French [recall]
源自 古法文 [回憶]
from rapeler [to recall]
源自 rapeler [呼叫]
re- [re-]
re- [前綴，表示.重，再.]
apeler [to summon] * see appeal
apeler [召喚] *參見 appeal