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TOEFL IELTS BNC: 15275 COCA: 12794
epoch
iːpɒk ˈiˌpɑk epək ˈɛpək ˈɛpˌɑk
Word forms: plural epochs
1 N-COUNT 时代;纪元 If you refer to a long period of time as an epoch, you mean that important events or great changes took place during it. 时代;纪元

  • The birth of Christ was the beginning of a major epoch of world history.

    基督诞生是世界历史上一个重要纪元的开端。

SYN era, time, age, period
2 N-COUNT [usually supplement NOUN] （地质中的）世，纪，期 An epoch is a very long period of time in the earth's development, marked by particular physical or biological characteristics. （地质中的）世，纪，期 [technical]

  • Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.

    在前寒武纪的最后1亿年中，两个主要的冰川时期对两个地区都产生了影响。

Trends of epoch
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TOEFL IELTS BNC: 15275 COCA: 12794
epoch

noun

ADJECTIVE | VERB + EPOCH | PREPOSITION | PHRASES ADJECTIVE➤new新紀元▸➤modern, present現代；當代▸➤early, past早期／過去的時代▸➤historical歷史時期VERB + EPOCH➤mark標誌紀元◇The dropping of the first atom bomb marked a new epoch in warfare.第一顆原子彈的投擲標誌着戰爭進入了新紀元。PREPOSITION➤during an/the epoch, in an/the epoch在某時代◇the importance of the computer in the present epoch計算機在當代的重要性➤epoch of⋯的時代◇an epoch of great social change社會大變革的時代➤epoch in存在於⋯的時代◇Welfare reform was an epoch in the history of US social policy.福利改革開闢了美國社會政策史上的一個新時代。PHRASES➤the beginning of an epoch, the end of an epoch一個時代的開端／結束
TOEFL IELTS BNC: 15275 COCA: 12794
epoch noun
⇨ period
TOEFL IELTS BNC: 15275 COCA: 12794

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