雪域高原,这片离太阳和蓝天最近的土地,是人类最后一片尚未污染的净土。这里的空气虽然含氧量不过百分之五十、六十左右,但呼入的是没有任何杂质的、最纯净的空气,这里的大气透明度非常好,所以天格外蓝、云分外白,这里的雪山冰川晶莹剔透,这里的江河湖泊清澈见底……这里的喇嘛 The snow-covered plateau, the land closest to the sun and the blue sky, is the last untouched land of mankind. Although the oxygen content of the air here is about 50% but about 60%, the incoming air is pure and without any impurities. The atmosphere here is very transparent, so the sky is exceptionally blue and the clouds are exceptionally white. The snow-capped mountains here are crystal clear, with clear lakes and rivers here ... Lama