keep a diary
keep a diary — idiom
1. to write about your thoughts, experiences, and feelings in a personal notebook o
to write about your thoughts, experiences, and feelings in a personal notebook on a regular basis, often as a daily or weekly habit
Constanza kept a diary throughout her first year at university in Madrid.
keep a diary throughout + time period
Dr. Chen advised Zayd to keep a diary to track his sleep patterns.
keep a diary to + purpose
Mira has kept a diary since she was nine years old.
Hoa keeps a diary in Vietnamese, even though she now lives in London.
The counsellor suggested that Lan keep a diary during the recovery period.
- keep a journal
often implies more reflective or thematic writing
- maintain a diary
more formal; suggests deliberate, sustained effort
- write in a diary
focuses on individual entries rather than the habit itself
文法句型
keep a diary
keep a diary for + time period
keep a diary to + verb
用法筆記
This idiom emphasises regular, ongoing practice — not a one-time act of writing. It is often used when talking about habits maintained over months or years, rather than a single entry.