Your ancestors are the people from whom you are descended.
例句
...our daily lives, so different from those of our ancestors...與我們祖先的生活有著天壤之別的我們的日常生活He could trace his ancestors back seven hundred years.他的先祖可以上溯到700年前。
N-COUNT
原種；原型
An ancestor of something modern is an earlier thing from which it developed.
例句
The direct ancestor of the modern cat was the Kaffir cat of ancient Egypt...現(xiàn)代貓的直系原種是古埃及的卡菲爾貓。The immediate ancestor of rock 'n' roll is rhythm-and-blues.搖滾樂直接源自節(jié)奏布魯斯。