What should be written in calligraphy works with the theme of creating an environmentally friendly campus?

1. The grass is green and the feet are kind. The grass is green and the feet are kind.

Campus is my home, please take good care of it. The campus is my home, please take good care of her.

Flowers and trees need your care. Flowers and trees need your care.

Don't let the last drop of water in the world turn into tears. Don't let the last drop of water in the world turn into tears.

5. Don't let the faucet cry. (Don't make the tap cry)

6.

Don't pick and dig indiscriminately, leave more rare minerals and future generations.