Frederick, MD, said that the technology to the African people, the very practical benefits.

弗雷德里克医学博士表示，这项技术对非洲人民来说，非常实惠实用。

youdao

Frederick, MD, said that the technology to the African people, the very practical benefits.

弗雷德里克医学博士表示，这项技术对非洲人民来说，非常实惠实用。

youdao