1. There is only one home, and the earth cannot be cloned.

2. Man and nature need to live in harmony.

3. Protect clear water and blue sky and build a green home.

Forests are the lungs of the earth, so we should protect them.

5. Protect the ecological environment and benefit future generations.

6. Let the flowers smile, let the grass love and let the heart bloom.

7. Green campus and green life.

8. Without trees, the world would be desolate.

Please make our campus always green.

10, the trees are green and the earth has a pulse.

1 1, I'm shy, please don't touch me!

12. Save a drop of water today and leave a drop of blood for future generations.

13, enjoying and loving flowers is more beautiful and the scenery is more secluded.

14, I advise you to walk a few more steps and don't take the lawn as the road.

15, flowers bloom and fall, and young trees grow.