非洲的挑战是巨大的，其目标是远大的。
Blackden说，非洲的挑战是人们没有认识到性别问题就是经济问题。
Blackden says the challenge in Africa is that gender issues are not recognized as an economic issue.
面对维持和增加非洲的粮食生产这个巨大挑战，你有什么问题和答案？
What questions and answers do you have when facing the huge challenges of maintaining and increasing Africa's food production?
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