The butterfly could symbolically represent

蝴蝶的含义可能不仅仅是一种转化
not just transformation but maturation of his erotic ideal.

也可能是他理想性爱的成熟体
Well, he started with easy targets.

他先对容易的目标下手
Children are much easier to abduct, manipulate, and control.

孩子很容易绑架和操控
Or he could be a preferential offender

也许他是个择优型性侵者
and a situational child molester, meaning adult woman have always

偶尔也选择孩子成年女人是他的首选
been his preference, but given the right circumstances

但在特定场合下
he'd offend against a child.

他也会侵犯孩童
Monica's not a preference.

莫妮卡不是他的优先选择
She's a specific target.

她是个特别的目标
He didn't go after just any woman,

他没有随便袭击其他女性
he went after Hope's mother.

他只是对霍普的母亲下手