acquisition theory的用法和样例：
例句
- Interlanguage fossilization is an very important study field in second language acquisition.
中介语的僵化现象一直是第二语言习得理论的重要研究领域。 - After reviewing the respective positions of positivism and relativism, the paper expounds the future developments in SLA theory construction.
本文在对实证主义与相对主义各自的主要观点进行综述的基础上，探讨未来二语习得理论建构的发展趋势。
