keep a diary

US /kiːp ə ˈdaɪ.ə.ri/
UK /kiːp ə ˈdaɪ.ə.ri/
"keep a diary" picture
1.

写日记, 记日记

to regularly write down your thoughts, experiences, and observations in a personal journal or notebook

:
She decided to keep a diary to record her daily adventures.
她决定写日记来记录她的日常冒险。
It's a good habit to keep a diary, especially when you're traveling.
写日记是个好习惯,尤其是在旅行时。