1st - 第一(the first) 2nd - 第二(the second) 3rd - 第三(the third) 4th - 第四(the fourth) 5th - 第五(the fifth) 6th - 第六(the sixth) 7th - 第七(the seventh) 8th - 第八(the eighth) 9th - 第九(the ninth) 10th - 第十(the tenth) 11th - 第十一(the eleventh) 12th - 第十二(the twelfth) 13th - 第十三(the thirteenth) 14th - 第十四(the fourteenth) 15th - 第十五(the fifteenth) 16th - 第十六(the sixteenth) 17th - 第十七(the seventeenth) 18th - 第十八(the eighteenth) 19th - 第十九(the nineteenth) 20th - 第二十(the twentieth)
依此类推,以此类推一直到100th - 第一百(the one hundredth)