It is life that altered the atmosphere. 是生命改变了大气

91. These strata are the product of those billions and billions of shells.
    这些地层便是数以亿计的贝壳的产物
92. Thanks to them, the carbon drained from the atmosphere,
    多亏他们 碳被从大气分离
93. And other life-forms could develop.
    其他生物得以发展
94. It is life that altered the atmosphere.
    是生命改变了大气
95. Plant life fed off the sun's energy,
    植物以太阳能为生
96. Which enabled it to break apart the water molecule...
    这使它能够分解水分子
97. And take the oxygen.
    从中产生氧气

来自《家园 第一部分 Home Part1》第 94 行