1. Memories of my alma mater: those wonderful campus times, the happy time spent with my classmates, the happy moments of participating in campus activities and so on.
2. The beauty of the campus: green trees, blooming flower beds, clear lakes, etc.
3. Alma mater feelings: the profound friendship and the spirit of unity and cooperation established by the students at their alma mater. Mention the wonderful time we spent together on campus, the experience of growing up together, and the friendship of mutual support and encouragement.