He was convinced he would die in that cabin, and his body would be hidden by perpetual snows.

他确信自己会死在那个小屋里， 他的尸体会被终年积雪掩埋。

We had passed the limit of perpetual snow, which, on account of the moisture of the climate, is at a greater elevation in Iceland than the high latitude would give reason to suppose.

我们已经超过了终年积雪的极限，由于气候潮湿，冰岛的终年积雪海拔比高纬度地区的海拔要高。