洞悉

例句：

1. 1. He has a keen insight into the market trends.
   他对市场趋势有敏锐的理解。
2. 2. The professor's lecture was so clear that everyone could "grasp" the concepts.
   教授的讲座讲解得非常清楚，每个人都能理解这些概念。
3. 3. After reading the book, I "grasp" the main ideas more clearly.
   读完这本书后，我更清楚地理解了主要思想。