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| 单词 | era |
| 释义 | era n.   1. a system of chronology reckoning from a noteworthy event (the Christian era).   2. a large distinct period of time, esp. regarded historically (the pre-Roman era).   3. a date at which an era begins.   4. Geol. a major division of time. Etymology: LL aera number expressed in figures (pl. of aes aeris money, treated as fem. sing.) |
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