A gold digger is someone who seeks to marry a rich person because he or she is only interested in that person's money.

VOA: special.2010.06.06

Or, you like math now but then you lose your taste in math, and you become the kind of person perhaps who's interested in Chinese poetry, whatever it is.

或者你失去对数学的原有兴趣，变成那种,对中国诗词感兴趣的人。

耶鲁公开课 - 死亡课程节选

Some words that are useful in this discussion, a 'host'. A host is the organism that you're interested in defending and it could be you or me or some typical person.

讨论中会用到一些词,宿主 宿主是,你对其免疫反应感兴趣的生物体,可以是你我,或者其他人

耶鲁公开课 - 生物医学工程探索课程节选

This kind of person is interested in other people's private matters.

VOA: special.2009.09.13