We speculate about what the Earth looked like when there were no trees, when there were no flowering plants, and when the continental land masses were in different positions than they are today.
我们都在设想没有树木，没有显花植物，甚至各大洲的位置都与现今不同的时候，这个地球是什么样子的。
We speculate about what the Earth looked like when there were no trees, when there were no flowering plants, and when the continental land masses were in different positions than they are today.
我们都在设想没有树木，没有显花植物，甚至各大洲的位置都与现今不同的时候，这个地球是什么样子的。
应用推荐