Pre-machine urban civilizations have likewise retained their essential characteristics through long lapses of time.

经过漫长的时间流逝， 前机器城市文明同样保留了它们的本质特征。

I thought, " If anything defeats me, sends me back to urban civilization, it will be the snakes" .

我想，“如果有什么能打败我， 让我回到城市文明， 那就是蛇” 。