1, "Silver hair on a crane" refers to the gray hair of teachers due to hard teaching, which symbolizes that they have devoted their lives to education. Reflecting the sun and the moon describes the teacher's efforts and persistence, shining like the sun and the moon, and will never be forgotten.
2. "Xue" is a metaphor for teachers' sincere heart and full of blood for students. They devote themselves wholeheartedly to education and devote all their enthusiasm and energy to the growth and future of students. "Wo Xinhua" means that teachers' efforts and efforts are like fertile soil, nourishing new flowers, making them thrive and bloom with the most beautiful brilliance.