表示第几的英文

按顺序
the + first second thire forth fifth sixth seventh
eighth nineth tenth

从第四开始都是基数词+ -th 后缀

前一个是序数词，后一个是基数词

one fist 1
two second 2
three third 3
four fourth 4
fivfe fifth 5
six sixth 6
seven seventh 7
eight eighth 8
nine nineth 9
ten tenth 10
eleven eleventh 11
twelve twelfth 12
thirteen thirteenth 13
fourteen fourteenth 14
fifteen fifteenth 15
sixteen sixteenth 16
seventeen seventeenth 17
eighteen eighteenth 18
ninteen ninteenth 19
twenth twentieth 20
thirty thirtieth 30
forty fortieth 40
fifty fiftieth 50
sixty sixtieth 60
seventh seventieth 70
eighty eightieth 80
ninety ninetieth 90
hundred hundredth 100