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单词 septennial
释义

WordReference Random House Unabridged Dictionary of American English © 2024
sep•ten•ni•al  (sep ten′ē əl),USA pronunciation adj. 
  1. occurring every seven years.
  2. of or for seven years.

n. 
  1. something that occurs every seven years.
  • Late Latin septenni(s) (Latin septuennis) seven years old (sept(em) seven + -enn-, combining form of annus year + -is adjective, adjectival suffix) + -al1
  • 1630–40
sep•ten′ni•al•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
septennial /sɛpˈtɛnɪəl/ adj
  1. occurring every seven years
  2. relating to or lasting seven years
Etymology: 17th Century: from Latin septennis, from septem seven + annus a year
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更新时间：2024/9/20 19:41:18