形容词与副词的比较
原级 / 比较级 / 最高级
规则变化
old/older/oldest
fast/faster/fastest
large/larger/largest
heavy/heavier/heaviest
ugly/uglier/ugliest
early/earlier/earliest
big/bigger/biggest
hot/hotter/hottest
thin/thinner/thinnest
difficult/more difficult/most difficult
expensive/more expensive/most expensive
important/more important/most important
不规则变化
many(much)/more/most
few/fewer/fewest
little/less/least
good(well)/better/best
bad/worse/worst