漫步在美国阿肯色州中西部草木丛生的山上,若你能时常注意脚下,就能够发现一些奇特的岩石。这些岩石表面小坑挨着小坑,但是这些小坑的边缘不是类似圆形的,而是有棱有角的三角形、四边形以及其他更复杂的几何形状的。走在这样的石头上就像走在有几何图案的地毯上一样。这些石头除了在脚下可以看到,也可以在 Stroll through the wooded mountains of the Midwest of Arkansas, where you can find peculiar rocks if you notice your feet. The rock pits are next to the pits, but the pits’ edges are not circular, but angular angled triangles, quadrilaterals, and other more complex geometries. Walking on such a stone is like walking on a rug with geometric patterns. These stones can be seen except under the feet