less 是 little 的比较级,有两个用法,一是接名词,表示比较少的... 比如, less water, less time, less commitment. 名词要不可数,或者抽象的.
第二种用法,后面接 形容词,副词的原型,表示比较少. 比如, less happy, less smart, less healthy, less interesting.
第三, more 是 much 和 many 的比较级,所以可以修饰 可数,不可数名词. more money, more friends, more tears, more rice, more opinions.
第四, more 构成 多音节的形容词,副词比较级, more interesting, more delicious.
much 用来修饰 形容词,副词比较级,表示...得多. much smarter, 聪明得多. much happier, 快乐得多. He runs much faster than me.他跑的比我快得多. She is much more beautiful than me. 她比我漂亮得多.