keep your hand in
成語所屬單字hand
keep your hand in — 慣用語
1. To occasionally do something you used to do a lot so you don't lose skill.
1.慣用語
釋義
保持熟練
To occasionally do something you used to do a lot so you don't lose skill.
例句
She retired but still teaches a class to keep her hand in.
He plays chess online to keep his hand in.