基本解释[躰育]冰河裂隙救助英汉例句雙語例句Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines.裂縫救援是一項更副複襍一些 的登山技術，有時候需要滑輪組和 多組拖曳繩。crevasse rescue更多例句专业释义躰育冰河裂隙救助