1~20的英语序数词

1～20英语序数词

1first1st one

2sesond2nd two

3third3rd three

4fourth4th four

5fifth5th five

6sixth6th six

7seventh7th seven

8eighth8th eight

9ninth9th nine

10tenth10th ten

11eleventh11th eleven

12twelfth12th twelve

13thirteenth13th thirteen

14fourteenth14th fourteen

15fifteenth15th fifteen

16sixteenth16th sixteeen

17seventeenth17th seventeen 18eighteenth18th eighteen

19nineteenth19th nineteen

20twentieth20th twenty