1-19
first,second,third,fourth,fifth,sixth,seventh,eighth,ninth,tenth,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteen,nineteenth
20-90,把y变成ie就行
twentieth^thirtieth^fortieth^fiftieth^sixtieth^seventieth^eightieth^ninetieth
21-99之间的非整十数,前面几十是基数,后面是1-9的序数,如
23：twenty-third
这样应该就没问题了~
