by way of illustration
举例说明 as an example
By way of illustration I'll refer to the behavior of rabbits.我将举例说明兔子的行为。

The colored illustrations in that book are most attractive.那本书里的彩色插图非常吸引人。
Illustration of a difficult idea is often effective in lectures.讲课时用图表来说明某个难懂的概念往往是行之有效的。
Illustration by example is better than explanation in words.用实例说明比用词语解释清楚。
He used photographs as illustrations for his talk.他用照片为他的演讲作图片说明。