e.ra
n.(名词)
A period of time as reckoned from a specific date serving as the basis of its chronological system.
年代:从某一具体日期算起的一段时间,也用作其年代系统的根据
A period of time characterized by particular circumstances, events, or personages:
时代:以特殊环境、特殊事件或特殊人物为标志的一段时间:
例句:
the Colonial era of U.S. history; the Kennedy era.
美国历史上的殖民时期;肯尼迪时代
A point that marks the beginning of such a period of time.See Synonyms at period
重大事件:标志这样一种时代开始的那一点参见 period
The longest division of geologic time, made up of one or more periods.
纪元:地质年代最长的划分,由一个或多个阶段组成
来源:
Late Latin aera
后期拉丁语 aera
from Latin [counters]
源自 拉丁语 [计数器]
pl. of aes aer- [bronze coin] * see ayes-
aes的复数 aer- [铜币] *参见 ayes-