追溯trace back to;date from;date back to;be retroactive 我们两国人民之间的友谊可以~到第五世纪。The friendship betwee our two peoples dates from (or back to)the 5th century./这个传说可以~到遥远的过去。The legend goes(or can be traced) back to remote antiquity./这种做法可以~到更早时候。This method can be traced back to still earlier times./可~的retraceable/~法retrospective (or retroactive)law/~力 retroactive force;retroactivity(e.g.承认的~力retroactivity of recognition)/~解释retroactive interpretation /~适用retroactive application/~效力retroactive effect/~性retroactivity |