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单词 triennial
释义

WordReference Random House Learner's Dictionary of American English © 2024
tri•en•ni•al /traɪˈɛniəl/USA pronunciation   adj. 
  1. occurring every three years.
  2. lasting three years.

n. [countable]
  1. a third anniversary.
  2. something that appears or occurs every three years.
  3. a period of three years.
tri•en•ni•al•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2024
tri•en•ni•al  (trī en′ē əl),USA pronunciation adj. 
  1. occurring every three years.
  2. lasting three years.

n. 
  1. a third anniversary.
  2. something that appears or occurs every three years.
  3. a period of three years;
    triennium.
  • trienni(um) + -al1 1555–65
tri•en ′ni•al•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
triennial /traɪˈɛnɪəl/ adj
  1. relating to, lasting for, or occurring every three years
 n
  1. a third anniversary
  2. a triennial period, thing, or occurrence
Etymology: 17th Century: from Latin triennium

triˈennially adv
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更新时间：2025/7/23 16:20:49