keep your hand in

US /kiːp jʊər hænd ɪn/
UK /kiːp jʊər hænd ɪn/
"keep your hand in" picture
1.

menjaga kemampuan, tetap berlatih

to continue to do something regularly so that you do not lose your skill

:
Even though she retired, she still teaches a class once a week to keep her hand in.
Meskipun dia sudah pensiun, dia masih mengajar satu kelas seminggu sekali untuk menjaga kemampuannya.
He likes to play chess occasionally just to keep his hand in.
Dia suka bermain catur sesekali hanya untuk menjaga kemampuannya.