Classical Chinese writings learning is an important component in middle school Chinese teaching.
文言文学习是中学语文教学的重要组成部分。
The exercise is important component in the middle school mathematics textbook.
习题是中学数学教科书中的重要组成部分。
The exercise is important component in the middle school mathematics textbook.
习题是中学数学教科书中的重要组成部分。
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