1 to explain or make sth clear by using examples, pictures or diagrams 用例子、图片或图表说明:
These statistics illustrate the point that I was making very well.这些统计资料把我要说的都说清楚了。
2 to add pictures, diagrams, etc to a book or magazine (为书或杂志)加插图:
Most cookery books are illustrated.大部份烹饪书籍都附有插图。