哥伦布前的美洲

National Geographic embarks on an expedition into the mysterious world of ancient American history to shed a different light on the history of the Americas.　　History books traditionally depict the pre-Columbus Americas as a pristine wilderness where small native villages lived in harmony with nature. But scientific evidence tells a very different story: When Columbus stepped ash..因为那些舞影院里的作品就是他们人生最好的展现。