| 单词 | eras | 
| 释义 | era1 of 2noun   ˈer-ə  ˈe-rə,ˈir-ə 1  a    : a fixed point in time from which a series of years is reckoned    b    : a memorable or important date or event    especially : one that begins a new period in the history of a person or thing  2   : a system of chronological notation computed from a given date as basis   3  a    : a period identified by some prominent figure or characteristic feature  the era of the horse and buggy  b    : a stage in development (as of a person or thing)    c    : a large division of geologic time usually shorter than an eon  Paleozoic era ERA2 of 2 abbreviation1   earned run average   2   Equal Rights Amendment   eras nounas in agesan extent of time associated with a particular person or thing the introduction of the mass production of cars on an assembly line ushered in the era of the automobile Synonyms & Similar Words Relevance 
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