precondition

名词 precondition:

1. an assumption on which rests the validity or effect of something else
   同义词：condition, stipulation
2. an assumption that is taken for granted
   同义词：given, presumption
3. a condition that is a prerequisite

动词 precondition:

1. put into the required condition beforehand

pre.con.di.tion

n.（名词）
A condition that must exist or be established before something can occur or be considered; a prerequisite.
前提：在某事发生或得到考虑之前必须存在或被承认的状况；先决条件
v.tr.（及物动词）
pre.con.di.tioned,pre.con.di.tion.ing,pre.con.di.tions
To condition, train, or accustom in advance.
预先处理：预先决定、训练或使习惯