- A country of southeast Europe with a short coastline on the Black Sea. Originally a Roman province, the area was united in 1861 and became independent in 1878. Bucharest is the capital and the largest city. Population, 22,533,074.罗马尼亚：欧洲东南部一国家，有沿黑海的短海岸线。该地区最初为古罗马的一个省，1861年统一并于1878年获独立。首都和最大城市是布加勒斯特。人口22,533,074