基數詞 序數詞

one first

two second

three third

four fourth

five fifth

six sixth

seven seventh

eight eighth

nine ninth

ten tenth

eleven eleventh

twelve twelfth

thirteen thirteenth

fourteen fourteenth

fifteen fifteenth

sixteen sixteenth

seventeen seventeenth

eighteen eighteenth

nineteen nineteenth

twenty twentieth

twenty-one twenty-first

twenty-two twenty-second

twenty-three twenty-third

twenty-four twenty-fourth