n. 两年生植物, 两年一次的事
a. 两年生的, 两年一次的
n. (botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season
a. having a life cycle lasting two seasons
s. occurring every second year
以上参考资料就是本英汉词典详细汇总的单词biennial的翻译英语含义，如有错漏请向我们提供反馈意见。