ancestor

His ancestors had come to America from Ireland.

他的祖先从爱尔兰来到美国。

My ancestor was a preacher, traveling around the countryside.

我的祖先是一个在乡村旅行的传教士。

These early ancestors of modern Eurasians disperse into parts of the world that had more seasonal sunshine and much lower levels of sun radiation.

这些现代欧亚混血儿的早期祖先分散到世界各地，那里有更多的季节性日照和更低水平的太阳辐射。

The direct ancestor of the modern cat was the Kaffir cat of ancient Egypt.

现代猫的直系物种原型是古代埃及的卡菲尔猫。

The ancestor of the modern bicycle was called a penny-farthing.

现代自行车的原型称作penny-farthing（一种前轮大后轮小的自行车）。

The ancestor of the modern computer was exhibited in the museum last week.

博物馆上周展出了现代计算机的原型。