13. 亚的斯亚贝巴研讨会认识到历史因素 诸如贩卖奴隶 殖民主义 随意划定边界和剥削性的经济政策 继续对非洲的经济和社会发展产生不良影响 会成为民族和种族冲突的滋生地
13. The Addis Ababa seminar recognized that historical factors such as the slave trade, colonialism, the arbitrary delimitation of boundaries, and exploitative economic policies continued to have negative effects on the economic and social development of Africa and could create breeding grounds for ethnic and racial conflicts.