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单词 triennium
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tri•en•ni•um  (trī en′ē əm),USA pronunciation n., pl. -en•ni•ums, -en•ni•a 
    (-en′ē ə).USA pronunciation 
  1. a period of three years.
  • Latin: period of three years, equivalent. to trienn(is) pertaining to three years (tri- tri- + -enn-, combining form of annus year + -is adjective, adjectival suffix) + -ium -ium
  • 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::
triennium /traɪˈɛnɪəm/ n ( pl -niums, -nia / -nɪə/)
  1. a period or cycle of three years
Etymology: 19th Century: from Latin, from tri- + annus a year
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更新时间：2025/7/23 8:51:13