Often an inquisitive eye may detect the shores of a primitive lake in the low horizon hills, and no subsequent elevation of the plain has been necessary to conceal their history.

• 在低低的地平线上的小山中，有鉴识力的眼睛可以看出一个原始的湖沼来，平原没有必要在以后升高，来掩盖它的历史。