1. We are the descendants of the dragon, and the greening of the motherland has my share.
2. You and I share the achievements of green campus environment protection.
3. We are children of a new era.
4. Be merciful to your hands, but leave your feet clean.
5. The highest level of littering is not to throw—— There is no dirt in the world.
6. Earth Earth I love you, we are your good children, protect you is my responsibility, take care of me best!
7. Only with dedication can you be clean, and only when you are clean can you meditate.
8. Care for the environment depends on everyone, and clean the air every day.
9. There is only one earth for mankind. We should protect the environment.
10. Please take the lost garbage home and don't make it cry again!