Usage of 30 kinds of stones

1 `. Throw it at people when you are angry.

make a fire

3. Architecture

3. The ingredients are studied

Some things, such as cement, can be made by mixing.

5. Military defense

6. Military offensive

7. Children play with it

8. Teachers use it to study projectile motion.

9. Give your feet enough food

10. Transaction

12. In my hometown, there is a kind of "stone chess" used as a chess piece.

13. Art sculpture

14. Grind into stone powder and drink it to satisfy hunger or stick a plaster.

15. Weapons

16. Make sounds with stones and make stone songs.

17. Make prizes

18. You can do divination.

19. Be a supporter

20. Make a mark

2 1. No football can replace it.

22. Massage

23. As a symbol of love

24. Throw light objects with stones to increase the range and lethality, such as bows and arrows.

25. Home decorations

26. Sharpen the knife

27. Go to the seaside and throw stones to vent.

28. Can you grind your teeth when sharpening the knife?

29. Cookware

30. Throw it to the landlord (...)

Ning cooperates with China.