四年級上學期【自然】
Water lilies are beautiful plants that grow in ponds, lakes, and slow-moving rivers. They have big, round leaves that float on the water, and their flowers come in many colors like white, pink, yellow, and blue. These plants are important because they give homes and food to fish and other water animals. Water lilies also help keep the water clean and full of oxygen. People love water lilies for their beauty, and they often appear in paintings and stories to symbolize peace and purity. They make any pond look more beautiful and peaceful.