For the smaller ones, there's refuge in the shallows... 较小的鱼 可以在浅海寻求庇护
And yet, living in the same prehistoric swamps, 然而在同一片史前沼泽之中
the ultimate flying insects first appeared back in the ancient swamps. 最终能够飞行的昆虫 最早出现在古代沼泽中
But there is one drawback to life in the fast lane. 但是快车道上的生活也有一个缺点
lies in their simple segmented body plan... 在于其简单的分节结构
...which has evolved in countless different directions. 这种结构向无数不同方向进化