皮德罗·桑切斯是哥伦比亚大学地球研究所的专家，也是“千禧村”项目的主管。

That's according to Pedro Sanchez, an agricultural expert at Columbia University's Earth Institute, and director of the Millennium Villages Project.

youdao

皮德罗·桑切斯是哥伦比亚大学地球研究所的专家，也是“千禧村”项目的主管。

That's according to Pedro Sanchez, an agricultural expert at Columbia University's Earth Institute, and director of the Millennium Villages Project.

youdao