warmer hotter colder bigger healthier better nicer more terrible一般情况，+“er” 以不发音的e结尾+”r” 重读闭音节双写+er 辅音+y, 变ier特殊变法 单独记多音节和部分双音节+ more A: This is an interesting world. Everything is different.B: Yeah. For example, summer is _ than winter and winter is _ than summer . A: You are right. And people are _ in spring but they are _in autumn.B: So you see, _ are different. But I like it because differences make the world beautiful.
