- snow forms a continuous blanket across the land.
雪便为这片土地盖上一层广袤无边的银毯 - But as spring creeps up from the south
可是随着春天渐渐从南方赶来 - the taiga is unveiled.
泰加林带也揭开了它的面纱 - This vast forest circling the globe
这片环绕着地球的广大森林 - contains a third of all the trees on Earth
容纳了地球上1/3的树木 - and produces so much oxygen
产生了大量氧气 - it changes the composition of the atmosphere.
从而改变了大气成分