?自我保护
... self belay 自我保护 self-belay 自我保护 shaft belay 镐柄保护栓 ...
自我保护
自锁保护器 ; 自锁维护器
My rope caught me after a few feet the first time I was sure my self-belay system actually worked.
WSJ: Training for the Big Wall | By Michael J. Ybarra
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。