The expansion of Marxism to include both Lenin's concept of imperialism as the final form of capitalism and a shift in the focus of struggle from the developed to the underdeveloped countries. 馬克思列寧主義馬克思主義的延伸,包含了列寧的帝國主義是資本主義的最終表現形式的理論,并指出了斗爭中心從發(fā)達國家到不發(fā)達國家的轉移