基本解释[体育]冰河裂隙救助英汉例句双语例句Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines.裂缝救援是一项更副复杂一些 的登山技术，有时候需要滑轮组和 多组拖曳绳。crevasse rescue更多例句专业释义体育冰河裂隙救助