era

age, epoch, era, period, times

名词 era:

1. a period marked by distinctive character or reckoned from a fixed point or event
   同义词：epoch
2. a major division of geological time; an era is usually divided into two or more periods
   同义词：geological era
3. (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched
   同义词：earned run average

1. My professor studies flora of the Palaeozoic Era.
   我的教授研究古生代的植物群。
2. His death marked the end of an era.
   他的死标志著一个时代的结束。
3. Today should be saluted as the beginning of a new era.
   应把今天看作是一个新时代的开始来庆祝。
4. The invention of the computer marked the beginning of a new era.
   计算机的发明标志着一个新时代的开始。
5. Concorde inaugurateda new era in aeroplane travel.
   协和式飞机开创了空中旅行的新纪元。
6. It's an era of the miniskirt in the seventies.
   七十年代是超短裙时代。
7. We are living in the computer era.
   我们正生活在计算机时代。

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-