| 单词 | epoch |
| 释义 | epochBrE /ˈiːpɒk/ NAmE /ˈepək/ noun (formal or literary ) a period of time in history , especially one during which important events or changes happen 时代；纪元；时期SYN era◆ 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。(geology地质学) a length of time which is a division of a period 世（地质年代，纪下分世）◆ geological epochs 地质世 |
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