记事本

例句：

1. 1. She keeps a diary to record her daily life.
   她保持一本日记来记录她的日常生活。
2. 2. He jotted down some notes while waiting for the bus.
   他在等公交车的时候随手记了一些笔记。
3. 3. The writer kept a detailed account of his travels in his notebook.
   这位作家在他的笔记本上详细地记录了他的旅行经历。