If you theorize that something is true or theorize about it, you develop an abstract idea or set of ideas about something in order to explain it.
例句
Police are theorizing that the killers may be posing as hitchhikers...警方推測那些殺手可能會假裝成搭便車的人。By studying the way people behave, we can theorize about what is going on in their mind.通過研究人們的行為方式，我們可以從中推斷他們內(nèi)心的想法。