夺取: to seize, to capture, to wrest control of...
凶手: murderer, assassin...
同伙: colleague, co-conspirator, accomplice...
轨迹: locus, orbit, trajectory, track...
未成年人: minor (i.e. person under8)...
含义: meaning (implicit in a phrase), implied meaning, hidden meaning, hint, connotation...
主动: passive, drive (of gears and shafts etc)...
铜牌: bronze medal, bronze plaque bearing a business name or logo etc...
手头: on hand, at hand, one's financial situation...
敞开: to open wide, unrestrictedly...
