现在的问题是非洲领导人是否会让我们的其他预言 — — 未来25—30年内会有更多非洲城市面临类似危机 — — 成为现实。
The question now is whether African leaders will allow our other projection – that, within the next 25-30 years, many more of the continent’s cities will be facing similar crises – to materialize.