pre-liberation PRE又怎么翻译呢?

pre-fabricated 怎么翻译? pre tax income怎么翻译? pre前缀怎么读 pre-study visit 如何翻译? 什么是Pre Pre-advanced pre-calculus PRE是什么意思 pre-prepared PRE-FLOW PRE-APPLICATIO请高手帮忙翻译下 请帮忙翻译一下pre-inserted