A sign prohibiting littering in the corridor.

1, littering casually, improper behavior, environmental damage, you are also a victim.

2, hand in hand to practice the garbage does not fall to the ground, heart to heart * * * to build a clean new Baoan.

3, always open my mouth and laugh, I swallow garbage.

With the development of the times, garbage should have a home.

Times are different, so is garbage. If you want to solve it, you have to help it.

6. Less footprint and more green.

7, throw less garbage and trees, and the living environment is more beautiful.

8. Forests like fresh air, and we like civilized life.

9. If you were a tree, would you bring freshness?

10, everyone loses a piece of paper less, and it is environmentally friendly every day.

20. Everyone hates garbage landing, and everyone praises caring for the environment.

2 1, the campus is dirtier when garbage falls to the ground, and the campus is more beautiful when garbage does not fall to the ground.

22, garbage is the devil, don't care.

23. Everyone will take part in cleaning up the garbage, and everyone will benefit from cleaning up the new environment.

24. Don't leave the garbage behind. Be a civilized and good student.

25, garbage does not fall to the ground, civilization is in the hands.

26, garbage does not fall to the ground, civilization I pass.

27. The garbage doesn't land. Did you do it today?

28, garbage does not land, the environment is more beautiful.

29, garbage does not land, environmental protection is more powerful.

30. The city is more beautiful if the garbage does not fall to the ground.