非常規(guī)復(fù)數(shù)20個

1.孩子

2. Man – men

2.男人

3. Datum – data

3.數(shù)據(jù)

4. Criterion – criteria

4.標(biāo)準(zhǔn)

5. Medium – media

5.媒質(zhì)

6. Foot –feet

6.腳，英尺

7. Tooth – teeth

7.牙齒

8. Mouse – mice

8.老鼠

9. Sheep – sheep

9.羊

10. Crisis – crises

10.危機

11. Stimulus – stimuli

11.刺激

12. Thief – thieves

12.賊，小偷

13. Wolf – wolves

13.狼

14. Leaf – leaves

14.葉子

15. Person – people

15.人

16. Life – lives

16.生命

17. Goose – geese

17.鵝

18. Thesis - theses

18.主題

19. Potato – potatoes

19.土豆

20. Cactus – cacti

20.仙人掌