A sign prohibiting littering in the corridor.

1, here is a magnifying glass, which is environmentally friendly and refreshing.

2, a piece of paper spoils the scenery, and every move shows civilization.

Your concern for civilization will make me more beautiful.

4. Put the garbage into the box, leaving a lingering fragrance, and show your cultivation with both hands.

Dear, please hold your hand and stick to ×× meters. There is a breadcrumb box in front. I sincerely like your kindness.

6. If there is rubbish in our hands, we will break up at home.

7. I love beauty too. Go easy on me.

8. My beautiful and neat appearance is your elegant and civilized behavior.

9. The beautiful scenery in front of us is in your hands and mine.

10, don't let the waste in your hand dirty your road when you come.