“Hard hills of rock became rivers of

问题描述:

“Hard hills of rock became rivers of

这里的dirt其实是泥土的意思,不是污垢。
Hard hills of rock became rivers of dirt 石山变为河流;沧海桑田。

岩石上的污垢变成了坚硬的河流

河流上的污垢成为了坚硬的岩石

坚硬的岩石变成了河流的脏东西