1. The event was organized by a group of enthusiastic collegians from the local university.
这个活动是由当地大学的一群热情的大学生组织的。

2. The collegian wrote an article for the campus newspaper about the importance of mental health awareness.
那名大学生为校园报纸写了一篇文章，讲述了关注心理健康的重要性。