However odd and repulsive underground living may seem at first thought, there seems much to be said for imaging whole cities moving down and building our houses underground.

• 尽管地下生活乍想起来多么古怪,又不那么令人喜欢,但似乎有许多理由设想把整座城市搬到地下去,在地下建造我们的房屋。