1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 20:twenty 21:twenty one 22:twenty two 23. 以此类推 30 thirty . 40 fourty . 50 fifty . 60 sixty . 70 seventy . 80 eighty . 90 ninty . 100 ...