Without which our lungs cannot function, 其中的70%

127. The green expanse peeking through the clouds
     透过云层所看到的这片绿色
128. Is the source of oxygen in the air.
     便是空气中氧气的源泉
129. Seventy percent of this gas,
     没有氧气我们的非就不能呼吸
130. Without which our lungs cannot function,
     其中的70%
131. Comes from the algae that tint the surface of the oceans.
     来自于这些使海面色彩缤纷的水藻
132. Our earth relies on a balance...
     地球依赖于一种平衡
133. In which every being has a role to play...
     在平衡中 一切都有属于自己的角色

来自《家园 第一部分 Home Part1》第 130 行