DoIneedtohaveanyexpe的精选

问题详情：   DoIneedtohaveanyexperiencetotakethiscourse?   Introductiontorappelling（登山运动中的绕绳下降运动）isacoursedesignedforcompletebeginners.Wecallthiscourse"Allthefunwithoutanywork".Youspen...