epoch
n. 时代，纪元；值得纪念的事件（或日期）；世（地质年代，纪下分世）；历元
复数 epochs
例句
It was meant to sound like an epoch-making declaration.
有意让它听起来像是一个划时代的宣言。
《柯林斯英汉双解大词典》
The birth of Christ was the beginning of a major epoch of world history.
基督的诞生是世界历史一个重要时代的开始。
The death of the emperor marked the end of an epoch in the country's history.
皇帝驾崩标志着该国历史上一个时代的结束。
《牛津词典》
