以下是常见的序数词列表：

1st - first

2nd - second

3rd - third

4th - fourth

5th - fifth

6th - sixth

7th - seventh

8th - eighth

9th - ninth

10th - tenth

11th - eleventh

12th - twelfth

13th - thirteenth

14th - fourteenth

15th - fifteenth

16th - sixteenth

17th - seventeenth

18th - eighteenth

19th - nineteenth

20th - twentieth

21st - twenty-first

22nd - twenty-second

23rd - twenty-third

30th - thirtieth

40th - fortieth

50th - fiftieth

60th - sixtieth

70th - seventieth

80th - eightieth

90th - ninetieth

100th - hundredth

序数词通常在数词后添加"-th"构成。需要注意的是，部分不规则序数词如"first"和"second"并不遵循构成规则。

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