名词
中文翻译：课本
同义词：
['textbook', 'textbook', 'exercise book']
例句：
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1.She spent hours studying the textbook for her exam.
她花了很多小时研究她的考试用的教科书。
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2. The teacher asked us to read the textbook before class.
老师要求我们在课前阅读教科书。
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3. He kept his stud book in his desk drawer.
他把他的练习册放在他的桌子抽屉里。