论文内容主要包括三个方面。

The main contents include three aspects.

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功能对等理论主要包括三个方面：意义、风格以及读者反映。

Functional Equivalence includes three aspects: meaning, style and reader's response.

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“基于感性动力的中学作文教学研究”这一课题主要包括三个方面的内容。

This topic, "Middle School Composition Teaching Research Based on the Perceptual Power" mainly includes three aspects.

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