Imagine putting these squares under all the roads and pavements in Tokyo.

想象一下，把这些方块放在东京所有的道路和人行道下面。

Dick turned down the Rue de Rivoli, walking two squares under the arcades to his bank where there was mail.

迪克拐进里沃利街， 在拱廊下走了两个广场， 来到他的银行， 那里有邮件。