写出以下数学的英文序数词,缩写:1,2,3,5,8,9,12,14,15,19,20,55,37...答:first 1 second 2 third 3 fifth 5 eighth 8 ninth 9 twelfth 12 fourteenth 14 fifteenth 15 nineteenth 19 twentieth 20 fiftieth-fifth 55 thirtieth-seventh 37 fortieth-eighth 48 seventieth-third 73 ninetieth-third 93