pre.cep.tiveadj.(形容词)Of, relating to, or expressing a rule or principle that prescribes a particular course of action or conduct.规定的:规范特定行动或行为的规则或原则的、与之相关的或由之表达的Instructive; didactic.指导性的;说教的【引伸】precep.tivelyadv.(副词)