这是一篇科学幻想小说,故事里的两个主人公均为外星来人,他们的使命是寻找毁灭地球的时机。然而,地球毕竟是地球,其巨大的吸引力和包容力留住了这两位外星来客,使他们以地球为家(“tocall Earth my home”)。这也从另一方面说明,人类对宇宙其他部分的认识是有限的,仍然认为地球是宇宙间的“天堂”。但是,从目前的情况看,确实如此。 This is a sci-fi novel, the two protagonists in the story are alien comers, their mission is to find the time to destroy the earth. However, the Earth, after all, is the Earth, whose immense attraction and its ability to retain these two alien visitors make them home to the Earth (“tocall Earth my home”). On the other hand, this shows that human beings have limited understanding of the other parts of the universe and still consider the Earth a “paradise” of the universe. However, from the current situation, it is true.