Protect the dormitory environment and don’t litter in summer slogans

1. Please don't be stingy with your little effort.

2. Pick up the garbage on the ground and restore peace to the earth.

3. Please don’t pollute the earth’s clothes.

4. Don't throw your face on the ground casually.

5. What you throw away is not garbage, but quality and morality.

6. Pick up the garbage on the ground and restore peace to the earth.