基数词序数词缩写意思(序)基数词序数词缩写意思(序)one first 1st第一twenty-three twenty -third23rd第 二十三two second 2nd第二twenty-four twenty-fourth 24th第二十四three third 3rd第三twenty-five twenty- fifth25th第二十五four fourth 4th第四twenty-six twenty-sixth 26th第二十六five fifth5th第五twenty-seven twenty-seventh 27th第二十七six sixth 6th第六twenty-eight twenty -eighth28th第二十八seven seventh 7th第七twenty-nine twenty- ninth29th第二十九eight eighth8th第八thirty thirtieth30th第三十nine ninth9th第九forty fortieth40th第四十ten tenth 10th第十fifty fiftieth50th第五十eleven eleventh 11th第十一sixty sixtieth60th第六十twelve twelfth12th第十二seventy seventieth70th第七十thirteen thirteenth 13th第十三eighty eightieth80th第八十fourteen fourteenth 14th第十四ninety ninetieth90th第九十fifteen fifteenth 15th第十五one hundredone hundredth100th第 一百sixteen sixteenth 16th第十六seventeen seventeenth 17th第十七eightee