elucidatory

例句：

1. 1. The book is elucidatory in its explanation of the scientific principles.
   这本书在解释科学原理方面是解释性的。
2. 2. His lecture was elucidatory and easy to follow.
   他的讲座是解释性的，易于理解。
3. 3. The research paper was elucidatory in its elucidation of the issue.
   研究报告在阐述问题时是解释性的。