- ...and how it changed everything for life on our planet.
以及它如何彻底改变地球上的一切 - For most of our planet's history,
在我们星球的大部分历史中 - land has been inhospitable to life.
陆地都不适于生命居住 - A bleak and desolate realm...
一片荒芜 - more like the surface of the moon...
更像是月球表面 - than like Earth today.
而不像今天的地球 - It's hard to imagine
很难想象