progenitor [proʊˈdʒenɪtə(r)]

例句:

• He was the progenitor of a family of distinguished actors.
  他是一个著名演艺世家的先辈。
  
• Mediterranean oat held to be progenitor of modern cultivated oat.
  地中海地区燕麦,被认为是现代栽种燕麦的祖先.
  
• He was also a progenitor of seven presidents of Nicaragua.
  他也是尼加拉瓜7任总统的祖先。
  
• His next stop was the dimetrodon, the progenitor of Mammalia.
  来自NEWYORKER
• They will also investigate ways of helping stem cells convert to progenitor cells.
  来自THETIMES
• Particular interest is focused on the differentiation of hematopoietic progenitor cells and leukocyte trafficking.
  来自SA