短語(yǔ)詞組短語(yǔ)ordinal number ordinal numeral 回答“在什么序次上”這一問(wèn)題的數(shù)詞ordinal ordinal number ordinal numeral 序數(shù)Formation of the Ordinal Numeral 序數(shù)詞的構(gòu)成 返回 ordinal numeral