例如，研究小组已经完成对西非部分地区防风林的研究。
For example, studies have been done on windbreaks in parts of West Africa.
西非国家对来自邻国的移民不加限制，这引发了大量人群跨越边界，涌入他国。例如，从加纳到石油丰富的尼日利亚。
West African countries do not limit immigration from their neighbours, so lots of people cross borders, for example from Ghana to oil-rich Nigeria.
例如，每年的棉花补贴也许低于50亿美元，但每年却给西非棉花生产国带来了1.5亿美元的损失，这相当于其商品出口总额的10％。
Cotton subsidies, for example, may be less than US$5 billion a year, but they cost West African cotton producers US$150 million a year – equal to about 10% of their total merchandise exports.
例如，西非约鲁巴部落的妇女食用大量的木薯。木薯是一种甜薯或者甜土豆。
For example, the women from Yoruba tribe in West Africa consume plenty of cassava, a type of yam or sweet potato.
例如，西非约鲁巴部落的妇女食用大量的木薯。木薯是一种甜薯或者甜土豆。
For example, the women from Yoruba tribe in West Africa consume plenty of cassava, a type of yam or sweet potato.
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