The guide gave us an interpretive explanation to help understand the historical significance of the ancient building.

interpretive 是由动词 interpret（解释、诠释）加上形容词后缀 -ive 构成的形容词。interpret 来自拉丁语 interpretari，意思是"解释、说明"。interpretive 表示"解释性的、用于帮助理解的"，强调通过解说使事物更易被理解。