How to protect the campus environment, please write three slogans with propaganda significance.

trees are green, so the earth has a pulse.

2. Don't take anything with you except photos; Leave nothing but footprints.

3. The earth is my home, and greening depends on everyone.

4. A flower and a grass are all life, and a branch and a leaf are always related to love.

5. Give you a fragrance when you come and leave me clean.

6. The grass is alive, and there is more "green" in the first step.

7. The grass smiles at you. Please take a detour.

8. If you want to bring spring scenery into your home, you can't help it.

9. I am a little bird, always flying and not flying high.

1, 1+1 = 2, a tree+a tree = a forest.

11. Green is the true color of the earth.

12. The earth is my home, and greening depends on everyone.

13. Protecting trees means protecting yourself.

14. Fragrance comes from flowers, and beauty needs your care.

15. Green is the source of life.

16. It's a pity to tread through the green carpet. Why not take more steps?

17. Red flowers and green grass are planted all over the garden, and the wind comes when the flowers are sent to the dish.

18. If you can enjoy the flowers, you must enjoy them directly. Don't fold the flowers and enjoy the branches.

19. Laugh in the flowers and grass, and enjoy the appearance outside the garden.

2. I bloom for your beautiful heart.

21. The life of the flowers you take away is short, but the beauty you leave behind is forever.

22. I hope you don't stretch your hands and fold your branches, and flowers have their own tears.

23. Forests are factories for producing oxygen.

24. The plants are green, the flowers are smiling, the air is fresh and the environment is good.

25. I gave you a fragrance when I came, and I was clean when I left.

26. Plant a tree and a flower, and the world will be better.

27. The grass is lovely and everyone loves it.

28, distance produces beauty, and close contact is declined.

29. Take a detour of three or five steps and leave the grass green.