- The struggle of a giant panda mother to raise her cub
大熊猫努力养育幼崽的情景 - is a touching symbol of the precariousness of life in the mountains.
真是大山里濒危生命求生的动人一幕 - On the highest summits of our planet
在地球上最高的地方 - nothing can live permanently.
没有什么生物能在此永久生存 - The highest peak of all,
世界上最高的山峰 - Mount Everest, five and a half miles above sea level and still rising - the roof of our world.
海拔5.5英里的世界屋脊 ——珠穆朗玛峰仍在不断升高 - Of those humans who've tried to climb it
在试图登顶珠峰的人中