1-30基数词-序数词-对照表

基数词序数词基数词序数词1one第1first1st16sixteen第16sixteenth16th2two第2second2nd17seventeen第17seventeenth17th3three第3third3rd18eighteen第18eighteenth18th4four第4fourth4th19nineteen第19nineteenth19th5five第5fifth5th20twenty第20twentieth20th6six第6sixth6th21twenty-one第21twenty-first21st7seven第7seventh7th22twenty-two第22twenty-second22nd8eight第8eighth8th23twenty-three第23twenty-third23rd9nine第9ninth9th24twenty-four第24twenty-fourth24th10ten第10tenth10th25twenty-five第25twenty-fifth25th11eleven第11eleventh11th26twenty-six第26twenty-sixth26th12twelve第12twelfth12th27twenty-seven第27twenty-seventh27th13thirteen第13thirteenth13th28twenty-eight第28twenty-eighth28th14fourteen第14fourteenth14th29twenty-nine第29twenty-ninth29th15fifteen第15fifteenth15th30thirty第30thirtieth30th 基变序，有规律，词尾加上th；一、二、三特殊记,结尾各是tdd；八去t,九去e,ve要用f替；整十基数变序数，先把y变ie，最后加上th；要是遇到两位数，十位基数个位序。1-30基数词与序数词对照表