北欧海盗 (北歐海盜) Běi ōu Hǎidào
          
              Běi ōu Hǎidào 
              
              proper noun 
              the Vikings 
              Domain: History 历史
              
                , Subdomain: Europe 
              
              
                , Concept:  
              
              
              
                Notes: From the late eighth to the early eleventh century