比较级 最高级2:fatter; fatest5:happier; happiest6:wetter; wetest7:more; most9:less; least10:worse; worst11:thinner; thinnest12:farther/further;farthest/furthest13:earlier; earliest14more careful; most careful 15:more important; most important16:busier; busiest17:more; most18:better; best19:better; best20:more quickly; most quickly