keep at
US /kiːp æt/
UK /kiːp æt/

1.
terus berusaha, bertekun
to continue working at something difficult or unpleasant without stopping
:
•
You have to keep at it if you want to master a new language.
Anda perlu terus berusaha jika ingin menguasai bahasa baharu.
•
Despite the challenges, she decided to keep at her studies.
Walaupun menghadapi cabaran, dia memutuskan untuk terus berusaha dalam pelajarannya.