The crystal clear blue sky and deep yellow earth breed fresh and bright green, which is the color of life endowed by nature.
When we indulge in the brilliant achievements of material civilization and spiritual civilization of human society, the "terrible ghost" of ecological crisis has begun to attack us.
Man looks up at the sky. Is there a small piece that is blue?
Humans look around at the vegetation. How many plants are really green?
All this, the green school is awakening us: life should be eternal, green and must be eternal!