Then over in Germany at the Max Planck institute, there's another biologist called Caterina Miranda who's done some experiments with blackbirds living in urban and rural areas.
请问此句中的Then over应该怎么理解,能从句意大概知道是此后的意思,是否可以将这里的Then理解成副词表示此后,over理解成副词表示跨过,越过的含义。