在经历了多年年均5%的经济增长后，全球不确定性、大宗商品价格低迷以及不利的外部条件有可能破坏几十年来急需的进步。
After years during which the continent’s economy grew at an average annual rate of 5%, global uncertainty, depressed commodity prices, and jittery external conditions are threatening to undermine decades of much-needed progress.