Four-billion-year-old legacy bequeathed by the earth. 遗留下来的惊人财产
In the great adventure of life on earth, 在地球上生命的伟大冒险中
What do we know about life on earth? 地球上的生命我们了解多少呢
The earth counts time in billions of years. 地球以亿为单位计算时间
United in life and for our life on earth. 紧密结合并未地球上的生命所用
All the successive species on earth have drunk the same water. 地球上相继出现的物种喝的是相同的水
There's always the same quantity of water on earth. 地球上的水含量是恒定的
Minerals and metals are even older than the earth. 矿物质和金属比地球更加古老