rap.pel
rappel的音标和读音：
DJ音标发音： [ræˈpel]
KK音标发音： [ræˈpɛl]
rappel的词性：
n.（名词）
1. 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.
绕绳下降：从山坡或悬崖上下来时的一种行为或方法，把一根拖长的绳子绕在一条大腿和相反的肩膀上，最后能逐渐顺利地下山
rappel的词性：
v.intr.（不及物动词）
2. To descend from a steep height by this method.
绕绳下降：用这种方法从陡峭的高处下来
rappel的词源：
3. French [recall, return, rappel]
法语 [回忆，回去，绕回]
4. from Old French [recall]
源自 古法语 [回忆]
5. from rapeler [to recall]
源自 rapeler [呼叫]
6. re- [re-]
re- [前缀，表示“重，再”]