doctrine
/ˈdɒktrɪn/noun
1- a belief or set of beliefs held and taught by a Church, political party, or other group教义; 信条：
the doctrine of predestination.
宿命论的信条。
1.1
- US a stated principle of government policy, mainly in foreign or military affairs〈美〉官方声明; 国际关系（或军事）原则：
the Truman Doctrine.
杜鲁门主义。
词源
late Middle English: from Old French， from Latin doctrina 'teaching， learning'， from doctor 'teacher'， from docere 'teach'.