peg away; hammer; toil(ART Vancouver); go through(над чем-либо); leather; peg along; plod(to work slowly but thoroughly); slog; doggedly pursue(над задачей • Derek Abbott of the University of Adelaide has doggedly pursued the mystery for decades and reportedly announced on Tuesday that the newly emerging investigative technique known as forensic genealogy appears to have finally provided an answer to the longstanding question of who, exactly, the Somerton Man was. (coasttocoastam.com)ART Vancouver); peg on
sweat blood(Paul sweated blood to finish his album recording by time of the tour. == Полу пришлось попотеть, чтобы завершить запись своего альбома до запланированных гастролей.)