A newspaper can hold more than 10 thousand words, but it can't reflect a ray of dazzling sunshine. A crystal can refract bright sunshine, but it can't take away a drop of round water; A cup can hold 200 ml of liquid water, but it can't show the mountains and rivers of Wan Li; A map can depict the mountains and rivers of Wan Li on a scale, but it can't breed natural energy; A forest can contribute abundant natural resources, but it cannot be exploited endlessly. Please cherish the utilization of forest resources, plant trees, accumulate bit by bit, take the road of sustainable development, and let us create a better tomorrow together.