1 one

2 two

3 three

4 four

5 five

6 six

7 seven

8 eight

9 nine

10 ten

相关介绍

11 eleven

12 twelve

13 thirteen

14 fourteen

15 fifteen

16 sixteen

17 seventeen

18 eighteen

19 nineteen

20 twenty

21 twenty-one

22 twenty-two

23 twenty-three

30 thirty