- The great barrier reef, off the coast of Australia,
位于澳大利亚海岸的大堡礁 - Stretches over 350,000 square kilometers...
绵延35万平方公里 - And is home to 1 ,500 species of fish,
是1500种鱼类 - 4,000 species of mollusks...
4000种软体动物 - And 400 species of coral.
以及400种珊瑚的家园 - The equilibrium of every ocean depends on these corals.
每个大洋的生态平衡都取决于这些珊瑚 - The earth counts time in billions of years.
地球以亿为单位计算时间