單詞
epoch
英 ['i?p?k; 'ep?k]
美['?p?k]
基本信息
- n. [地質(zhì)] 世;新紀元;新時代;時間上的一點
CET6TEM4IELTSGRE考研TOEFL常用詞匯低頻詞
英英釋意
- 1. a period marked by distinctive character or reckoned from a fixed point or event
- 2. (astronomy) the precise date that is the point of reference for which information (as coordinates of a celestial body) is referred
- 3. a unit of geological time