doctrine

n. /ˈdɑːktrɪn/ C1

学说；教条；主义

A set of beliefs held by a church, political party, etc.

仙境例句

The old insects of the wood taught the young ones a doctrine: never eat the mushroom.

林子里的老虫子教给小虫子一条信条：千万别吃这蘑菇。