本文对国内外关于教育成本的相关理论进行了归纳总结和分析，在此基础上对我国教育成本进行概括，并根据其特点进行分类。
The paper summarizes and analyses the related domestic and foreign theories of education cost, then summarizes the characters and species of education cost in our country.
在《同源字典》相关同源字分组的基础上，根据王力先生关于同源字的鉴别标准和系联方法，并结合王宁先生关于同源词分析的理论，对四组同源字进行了考察。
Based on the methods used by Wang Li's Dictionary of paronyms and the "etymologic meaning" theory by Wang ning, four groups of paronyms will be analyzed in this paper.
在《同源字典》相关同源字分组的基础上，根据王力先生关于同源字的鉴别标准和系联方法，并结合王宁先生关于同源词分析的理论，对四组同源字进行了考察。
Based on the methods used by Wang Li's Dictionary of paronyms and the "etymologic meaning" theory by Wang ning, four groups of paronyms will be analyzed in this paper.
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