- occurring every 20 years
- relating to or lasting for a period of 20 years
单词 | vicennial |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 vi•cen•ni•al (vī sen′ē əl),USA pronunciation adj.
Collins Concise English Dictionary © HarperCollins Publishers:: vicennial /vɪˈsɛnɪəl/ adj
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