keep at ( or keep someone at)
persist (or force someone to persist) with.
→ keep
KEEP AT (OR KEEP SOMEONE AT)
Meaning of KEEP AT (OR KEEP SOMEONE AT) in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004
keep at ( or keep someone at)
persist (or force someone to persist) with.
→ keep
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004