So it would seem the hardest, solidest, densest rock is really almost entirely empty space, broken only by tiny particles so widely spaced they shouldn't count.
因此，看起来最坚硬、最坚固、最致密的岩石其实 也是完全空洞的，这空洞被微小的粒子分开， 而这些粒子又如此分散地遍布在这广大的空间内，以至于可以被忽略。