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BNC: 22327 COCA: 20512

biennial

Word family
Related topics: Chronology, Plants
bi·en·ni·al /baɪˈeniəl/ adjectiveadj  
1. TMCTWOa biennial event happens once every two years 两年一次的 annual
2. HBPa biennial plant stays alive for two years 〔植物〕两年生的
annual, perennial
biennially adverbadv
Examples from the Corpus
From Longman Business Dictionary
biennialbi·en·ni·al /baɪˈeniəl/ adjectiveadj
happening once every two years
the biennial report published by the BDDA
compare biannual
Origin biennial
(1600-1700) Latin biennium two-year period, from bi- ( → BI-) + annus year
bi·en·ni·al adjectiveadj
Chinese
Syllable
Corpus

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