discrete word intelligibilty

例句：

1. 1. The teacher's explanation made the students understand the concept clearly.
   老师的讲解使学生清楚地理解了这个概念。
2. 2. The scientist's research has greatly improved our understanding of the universe.
   科学家的研究极大地提高了我们对宇宙的理解。
3. 3. The book is a valuable resource for enhancing one's intellectual abilities.
   这本书是提高智力能力的宝贵资源。