海拔4000米以上是高山寒漠：砾石、石头和岩石。
Above 4,000 meters is the highland desert: gravel, stones, and rocks.
他们沿着穿越高山牧场的小煤矿步道行进，在这里可以俯瞰到波光粼粼的河水正从冰川砾石上流过。
They follow Little Coal Creek Trail through alpine meadows overlooking a river bright with glacial silt.
见到那边的砾石！哎呀神人，我见到在那高山之前是满满五英里的砾石。
See those boulders over there! Why God man, I see five miles of boulders leading up to that mountain.
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