do harm

问题描述:

do harm
cigarette smoke does more harm to non-smokers than to smokers .这里more 后面怎么加名词harm 而不是harmful.还有do harm to 有这个句型吗?

do harm to有这个固定搭配,后面接名词或者动名词.所以这个句子的句型就是do more harm to sth than to sth.