Progenitors

例句:

• There may be, there probably are, thousands of deposits still untouched containing countless fragments and vestiges of man and his progenitors. 赫伯特·乔治·威尔斯. 世界史纲.
• Small portable clocks, the progenitors of the modern watch, commenced to appear about 1500. 威廉·亨利·杜利特. 世纪发明.
• One's mind hurries back over past centuries, and then asks, could our progenitors have been men like these? 李贝. 西洋科学史.
• The gunpowder experiments of Huygens and Papin were not successful, but they were the progenitors of similar inventions made two centuries thereafter. 威廉·亨利·杜利特. 世纪发明.
• I hope that I may not be misconstrued into saying that the progenitors of whales did actually possess mouths lamellated like the beak of a duck. 查尔斯·达尔文. 物种起源.
• I believe that animals are descended from at most only four or five progenitors, and plants from an equal or lesser number. 查尔斯·达尔文. 物种起源.

整理:诺里斯