Humans know that spiders have hands and feet, so they walk fast.So, they do biological experiments, combine people and spiders, use them as biological weapons, invade vulnerable groups, occupy their homes.人类知道蜘蛛有手和脚，所以它们走得很快。所以，他们做生物实验，把人和蜘蛛结合在一起，用它们作为生物武器，入侵弱势群体，占领他们的家园。