Is the source of oxygen in the air. 便是空气中氧气的源泉

125. Whose rivers carry water back to the oceans.
     而河流又将水注回了海洋
126. Sharing is everything.
     一切源于分享
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

来自《家园 第一部分 Home Part1》第 128 行