septennial
形容词 adj.
美 /sɛpˈtɛniəl/
英文释义
形容词 adj.
-
Of or relating to a 7 year period.
— septennial parliaments... septennial elections...
词源
From septennium + -al, from Latin septennis (“7-year”), q.v.
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数据来源: Wiktionary