see it through

تا انتهای کاری رفتن
To do something until it is finished; to continue working on ( something ) until it is finished.
Synonyms: see out
Coordinate term: carry out
Despite her health problems, Madame Prime Minister saw the project through

تا آخرش برو

چیزی یا کاری را تا به انتها انجام دادن ( تا تهش رفتن )