21、小草微微笑，请你绕一绕。

Grass smiles, please go around.

22、学校是我家，人人都爱它。

School is my home, everyone loves it.

23、环保都来搞，明天会更好。

All environmental protection will be done, and tomorrow will be better.

24、小草多可爱，请你别伤害。

How lovely the grass is, please don't hurt it.

25、芳草依依，大家怜惜。

26、菁菁校园，学习静地。

Jingjing Campus, study quietly.

27、节约用水，从每一滴开始。

Save water, start with every drop.

28、与绿色同行，当环保卫士。

Walk with the green, be the environmental protection guard.

29、茵茵绿草地，脚下请留情。

Please be merciful at your feet.

30、爱护环境，造福人类。

Care for the environment and benefit mankind.

31、学校是我家，环保靠大家。

School is my home, environmental protection depends on everyone.

32、常留清洁在，莫让污浊流。

Keep it clean, don't let the muddy flow.

33、少一个脚印，多一个生命。

One less footprint, one more life.