帮个忙.写1-20基数词和序数词,还有10-100整数的基数词和序数词..归类好.1-20的基数和序数词写在一起,10-
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基数
one two three four five six seven eight nine ten eleven twelve thirty fourteen fifteen sixteen seventeen eighteen nineteen twenty
序数
first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirtieth fourteenth sixteenth seventeenth eighteenth nineteenth twentieth
10~100
基数ten twenty thirty forty fifty sixty seventy eighty ninety hundred
序数tenth twentieth thirtieth fortieth fiftieth sixtieth seventieth eightieth ninetieth hundredth (都在基数词后面加TH 是Y的就变Y为IE再加TH.）
