biennial
biennial[bʌɪˈɛnɪəl]adjective- taking place every other year
两年一次的,每隔一年的。 比较 biannual
summit meetings are normally biennial.
首脑会议通常两年举行一次。
- (of a plant) taking two years to grow from seed to fruition and die
(植物) 二年生的。 比较 annual, perennial
noun- a biennial plant
二年生植物
- an event celebrated or taking place every two years
两年举办一次的(庆祝)活动
派生bienniallyadverb语源- early 17th cent.: from Latin biennis (from bi- 'twice' + annus 'year') + -al
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