1, don't be evil, don't be good.

2. Being kind to the earth means being kind to yourself.

Let's not litter. If garbage is thrown outside, it will pollute the environment. Let's not litter.

Leave nothing but footprints and take nothing away except the scenery.

There is a famous saying that garbage is a treasure misplaced.

6. Leave nothing but footprints and take nothing away except the scenery. The earth is my home, and a clean city depends on everyone.

7. Throw less rubbish. Happiness is you, me and him.

Starting from me, starting from now, take care of our own earth. Let the serious me adopt.