People in morden world generally live much more longer than people in the past .为何MORE 要去掉

People in morden world generally live much more longer than people in the past .为何MORE 要去掉

long不是多音节词,more是修饰多音节形容词（如friendly、beautiful、difficult）比较级使用的,因此要去掉

longer 已经是比较级了，不用再加more了