This book mainly deals with difficult points in the study of English.
这本书主要讲的是英语学习中的难点。
This paper is mainly to study S. E. Toulmin's model of argument.
本论文主要研究S．E．图尔敏的论证模式。
This paper is mainly to study S. E.
本论文主要研究S．E．图尔敏的论证模式。
The research of this dissertation is mainly normal study, and case study is a supplement.
本文采用以规范研究为主，以案例研究为辅的方法进行研究。
This book mainly deals with difficult points in the study of French.
这本书主要论述了学习法语的难点。
Because of limited time and energy, this article mainly use literature analysis and case study.
因时间和能力所限，本文主要采用文献分析和案例研究相结合的方法来进行。
This research mainly adopts literature study method and investigation study method.
本文主要采用文献法和调查法进行研究。
This research mainly adopts literature study method and investigation study method.
本文主要采用文献法和调查法进行研究。
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