It threw light on the mentality of his former friend.
它使他对他故友的思想有了一些了解。
He has many years' experience of the criminal mentality.
他研究犯罪心理有多年经验。
mentality详细解释
men.tal.i.ty n.(名词)【复数】men.tal.i.ties Cast or turn of mind:个性或心态:例句:a vindictive mentality.报复心理 The sum of a person`s intellectual capabilities or endowment.智力:一个人的智力或天赋之总和