纳米比亚神秘的“精灵怪圈”（英文）

摘要

＜正＞在纳米比亚贫瘠的草地上,这些由沙土构成的圆斑格外显眼,如同枯萎病一样,在大地上不断传播扩散。Legend says that they are footprints of the gods,others believe that they are UFO landing sights, and scientists have their own theories, but the truth is that no one really knows how the fairy circles dotting the Namib coastal desert came to be.