隐形的英雄，非裔美国人在西班牙内战中为正义而战。梦真的是预告吗

　　In 1936, some 2,800 young Americans, together with 50,000 volunteers from 54 countries, offered their lives in defense of the Spanish Republic. What is less known is that 85 African Americans joined that heroic struggle to fight against racism and for the very civil rights denied to them in their own country. This is their story, an untold chapter in the history of both the Uni... (展开全部)