名词
中文翻译：课本
同义词：
['textbook', 'lesson plan', 'study guide']
例句：
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1. She studied the textbook for a week before the exam.
她在考试前一周学习了这本教科书。
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2. The teacher gave us a lesson plan on how to solve the math problem.
老师给我们布置了一个关于如何解决数学问题的作业计划。
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3. The student read the textbook carefully and took notes during the class.
学生仔细阅读了教科书，并在课堂上做笔记。