There's always this veneer of innocence, or lack of learning, or lack of sophistication; so, she is presenting herself as a simple person.

她一直给人们一种，不学无术、学识浅薄、,胸无城府的假象;,让人觉得自己是一个简单的人。

耶鲁公开课 - 1945年后的美国小说课程节选