an·cient his·to·ry
noun/ˌeɪnʃənt ˈhɪstri/
/ˌeɪnʃənt ˈhɪstri/
[uncountable]- the history of societies that existed thousands of years ago, especially in Rome, Greece and Egypt
古代历史：几千年前存在的社会历史，尤其是在罗马，希腊和埃及 - a professor of ancient history
一位古代史教授
- a professor of ancient history
- (informal) something that happened or existed a long time ago that is no longer important
古代历史：很久以前发生或存在的事情不再重要 - Don't worry, our disagreements are ancient history.
别担心，我们的分歧已经成为历史。
- Don't worry, our disagreements are ancient history.