音标：['i:pɒk]
n. 新纪元, 时代, 时期
在线英汉词典

epoch的短语、例句：

epoch n (beginning of a) period of time in history, life, the history of the earth, etc, esp one marked by notable events or characteristics 纪元; 时代; 时期
Einstein´s theory marked a new epoch in mathematics. 爱因斯坦理论开创了数学的新纪元.