a small book of plain paper for writing notes in 笔记本 
The police officer wrote the details down in his notebook. 警察在笔记本上写下了细节。 She kept a notebook (= wrote notes in it) during the trip. 旅行中她随时记笔记。
Oxford Collocations Dictionaryadjective- bound
- leather-bound
- spiral
- …
- jot something (down) in
- record something in
- scribble (something) in
- …
- paper
- computer
- in a/your notebook
- an entry in a notebook
- (North American English) (British English exercise book)
a small book for students to write their work in 练习本 
Oxford Collocations Dictionaryadjective- bound
- leather-bound
- spiral
- …
- jot something (down) in
- record something in
- scribble (something) in
- …
- paper
- computer
- in a/your notebook
- an entry in a notebook
- (also notebook computer)
a small computer that can work with a battery and be easily carried 笔记本式计算机；笔记本电脑 Oxford Collocations Dictionaryadjective- bound
- leather-bound
- spiral
- …
- jot something (down) in
- record something in
- scribble (something) in
- …
- paper
- computer
- in a/your notebook
- an entry in a notebook
