名词
中文翻译：副笔记本
同义词：
['sub-page', 'sub-folder', 'supplementary notebook']
例句：
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1.This sub-notebook contains all the necessary information for the project.
这个副笔记本包含了项目所需的所有信息。
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2. The teacher suggested that we use a sub-notebook to organize our notes.
老师建议我们使用一个副笔记本来整理我们的笔记。
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3.She kept her sub-notebook in her backpack so she could easily access it during class.
她把她的副笔记本放在书包里，这样她在课堂上就能轻松地取用了。