one-first(1st)

　　two-second(2nd)

　　three-third(3rd)

　　four-fourth(4th)

　　five-fifth(5th)

　　six-sixth(6th)

　　seven-seventh(7th)

　　eight-eighth(8th)

　　nine-ninth(9th)

　　ten-tenth(10th)

　　eleven-eleventh(11th)

　　twelve-twelfth(12th)

　　thirteen-thirteenth(13th)

　　fourteen-fourteenth(14th)

　　fifteen-fifteenth(15th)

　　sixteen-sixteenth(16th)

　　seventeen-seventeenth(17th)

　　eighteen-eighteenth(18th)

　　nineteen-nineteenth(19th)

　　twenty-twentieth(20th)

　　twenty-one=>twenty-first(21st)

　　twenty-two=>twenty-second(22nd)

　　twenty-three=>twenty-third(23rd)

　　twenty-four=>twenty-fourth(24th)

　　twenty-five=>twenty-fifth(25th)

　　twenty-six=>twenty-sixth(26th)

　　twenty-seven=>twenty-seventh(27th)

　　twenty-eight=>twenty-eighth(28th)

　　twenty-nine=>twenty-ninth(29th)

　　thirty-thirtieth(30th)

　　thirty-one=>thirty-first(31st)

　　1973年4月11日翻译成英语

　　简单形式：April11th,1973（读起来就是Apriltheeleventh,nineteenseventy-three)正式用于合同之类的书面写法：TheeleventhofApril,1973

　　第十一的英语单词咋写