本子

例句：

1. 1. She always carries a notebook with her wherever she goes.
   她总是随身带着一本笔记本。
2. 2. I keep a diary to record my daily activities.
   我保持一本日记来记录我的日常生活。
3. 3. The student jotted down some notes while waiting for the exam results.
   学生在等待考试结果时记下了一些笔记。