Were they meteoritic matter from space, reflected light from polar icebergs or a high-altitude version of lightning?.它们是太空里的彗星物质、极地冰山反射的光，还是高空的闪电？
meteoritic英语解释陨星的,陨石的中释adj
Were they meteoritic matter from space, reflected light from polar icebergs or a high-altitude version of lightning?.它们是太空里的彗星物质、极地冰山反射的光，还是高空的闪电？
meteoritic英语解释陨星的,陨石的中释adj
