- a condition that must be fulfilled before other things can happen or be done先决条件, 前提：
a precondition for peace.
和平的先决条件。
with obj.
1
- （一般作be preconditioned）condition (an action) to happen in a certain way使（行为）按某方式发生, 制约（行为）：
enquiries are always preconditioned by cultural assumptions.
探索研究总会受制于文化假定。
1.1
- condition or influence (a person or animal) by exposing them to stimuli or information prior to the relevant behavioural situation预先调节（人, 动物）：
with obj. and infinitive the anthropologist is not preconditioned to interact with those he studies人类学家并非预先就具备与研究对象互动的条件
as noun preconditioning the protective effect of preconditioning.预先调节的保护性效果。
2
- bring (something) into the desired state for use对（东西）作预处理：
as adj. preconditioned preconditioned paper.预处理过的纸张。