西非通常被认为是非洲大陆南北分界线和向西凸起部分的大片地区，为地理、人种和文化过渡地带。
我是这里在达喀尔塞内加尔西部非洲。
剩余空间相关性也很显著,西部非洲的相关显著性高于东部非洲。
Residual spatial dependence was significant, and the magnitude was greater in western than in eastern Africa.
尼中互利经贸合作潜力大，加强该领域合作将造福两国人民和西部非洲各国人民。
Bilateral economic and trade cooperation of mutual benefits has huge potential and to strengthen cooperation in this area will benefit people of the two countries and all West African nations.
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