The Khumbo icefall is a steep area of lots of broken ice, lots of crevasses and seracs.
昆布冰瀑是一个陡峭的区域，有许多碎冰，许多裂缝和冰崩。
英语百科
Serac
A serac (originally from Swiss French sérac) is a block or column of glacial ice, often formed by intersecting crevasses on a glacier. Commonly house-sized or larger, they are dangerous to mountaineers since they may topple with little warning. Even when stabilized by persistent cold weather, they can be an impediment to glacier travel.