1. | 祖宗；祖先a person in your family who lived a long time ago |
His ancestors had come to America from Ireland. 他的祖先从爱尔兰来到美国。 |
2. | （动物的）原始种型an animal that lived in the past which a modern animal has developed from |
a reptile that was the common ancestor of lizards and turtles 作为蜥蜴和龟的共同原种的一种爬行动物 |
3. | （机器的）原型an early form of a machine which later became more developed |
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）。 |
