The extra amount that disappeared last fall was equivalent to this much. It comes back in the winter, but not as permanent ice, as thin ice -- vulnerable. The amount remaining could be completely gone in summer in as little as five years.
去年秋季冰盖消失的面积 大约和这个同量。冰盖在冬季恢复了一些， 但此时形成的不是永久型冰盖，而是薄的冰层， 非常脆弱。剩下的冰盖可能在至少五年内 的夏季全部消失。