短語詞組短語ordinal number 序數(shù)；序列號(hào)ordinal numbers 序數(shù)詞ordinal product [數(shù)][計(jì)]序數(shù)積Ordinal Identifiers 順序標(biāo)識(shí)n úmero ordial 序號(hào)Ordinal Nunbers 序數(shù)詞Ordinal selection 序數(shù)選擇法;序數(shù)選擇 返回 ordinal