worth a principle of core的用法和樣例：
例句
- Equity is the core value of a harmonious society.
和諧社會(huì )的核心價(jià)值理念是公平與公正。 - The new moralities and spiritual elements formed in the course of the youth's voluntary service are enriching the idea on value included in the socialist core value system.
青年志愿服務(wù)發(fā)展過(guò)程中形成的新的道德和精神因素，豐富著(zhù)社會(huì )主義核心價(jià)值體系中的價(jià)值理念。
