1.big:比较级bigger,最高级biggest
2.bad:比较级worse,最高级worst
3.delicious:比较级more delicious,最高级most delicious
4.rich:比较级richer,最高级richest
5.heavy:比较级more heavy,最高级most heavy 1.big:比较级bigger,最高级biggest
2.bad:比较级worse,最高级worst
3.delicious:比较级more delicious,最高级most delicious
4.rich:比较级richer,最高级richest
5.heavy:比较级more heavy,最高级most heavy