Glaciers may form in permanently cold areas, and these slowly moving masses of ice cut out valleys, carrying with them huge quantities of eroded rock debris.
冰川可能形成于长期寒冷的地区，而这些缓慢移动的冰块切割了山谷，带走了大量被侵蚀的岩石碎片。
3
With a remarkable piece of seamanship, the captain steered the ship out of the ice and turned north.