Now, it turns out this is actually based on this set of Penrose tiles, which are reducible to these shapes.

它其实是组彭罗斯砌块，最终可以简化为些图形。

Only now the tents are gone, replaced by multistory cinder block tenements.

只是现在帐篷不了， 取而代之的是多层煤渣砌块公寓。

He built his new house like a vault, with thick walls made from concrete blocks to protect his writing and papers from fire.

他将自己的新房子建造得像一个，的墙壁由混凝土砌块制成，以保护他的文字和文件免受火灾。