Most of the research centered on rice, an important crop in those three West African countries.

大部分研究集中在大米方面，大米是这三个西非国家的重要农作物。

youdao

Most of the research centered on rice, an important crop in those three West African countries.

大部分研究集中在大米方面，大米是这三个西非国家的重要农作物。

youdao