Rappelling, though usually mundane, is exceedingly dangerous.Rappelling off the end of a rope, as happened to Peruchini, is all too common and nearly always fatal.

• 垂降几乎是每次爬岩都要做的例行工作，但危险性仍然是相当高的，虽然要防范垂降的意外事故并不困难，但是讽刺的是，我们仍旧时常听到类似的不幸案例，而且通常都是致命的结果。