1. Planting trees will last for a long time.

2. Make the river clearer and make your home better.

3. Let green survive with us!

4. Cut off the "black dragon" flying into the sky and have a blue sky.

5. Be a good boy to Mother Earth and protect her!

6. There is only one earth and human beings should be in the same boat.

7. Please be gentle under your feet and don’t hurt a blade of grass.