The Earth and Mars will have looked pretty much exactly like that -- volcanoes everywhere, evaporating lakes everywhere, minerals, hot springs, and then you see those mounds on the shore of those lakes?
地球和火星应该看起来 差不多就是这个样子： 到处都是火山， 到处都是热气腾腾的湖泊， 矿物质，温泉， 你们看到那些湖边的土丘了吗？