Activate your grammar by thinking about the general grammar area before you begin to study.
在开始学习之前，想一想通用的语法点，以此来激活你的语法。
The introduction typically begins with a general statement of the problem area, with a focus on a specific research problem, to be followed by the rational or justification for the proposed study.
引言一般以对该领域的简单描述开始，同时关注某一特定的研究问题，接下来是拟定研究的基本原理。
Activate your grammar by thinking about the general grammar area before you begin to study.
在开端学习之前，想一想通用的语法点，以此来激活你的语法。
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