It looked first like a black mist creeping on the ground, then like the stormy waves of a black sea rising higher and higher as it came on, and then, at last, like what it was woods on the move.

最初像是掠过地面的黑雾，再看又像猛烈地黑色海浪，一浪高过一浪，滚滚而来。眨眼再去看时，又好像整片的树林在朝她们移动。