polarize
verb [ T ] (UK usually polarise) uk/ˈpəʊ.lə.raɪz/ us/ˈpoʊ.lə.raɪz/
使两极分化，使截然对立
to cause something, especially something that contains different people or opinions, to divide into two completely opposing groups
The debate is becoming polarized and there seems to be no middle ground. 辩论变得两极化了，看起来没有中间立场。