theory of social development的用法和樣例：
例句
- The human general development theory is Marxist important thought.
摘要人的全面發展理論是馬克思主義重要的思想。 - Marx's research of human social history is based on practice, which contributes to the revolutionary reform of social development theories based on practice.
馬克思時人類社會歷史的研究立足於實踐，使社會發展理論在實踐的基礎上實現了革命性的變革。
