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biennial [bai'eniəl]    添加到生词本 复制网址
基本释义
  • n. 二年生植物,二年一次的事
    a. 二年生的,二年一次的
词形变化
  • 副　词：bi·en'ni·al·ly
英英解释

  • 　1个名词解释

    1. 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

    　2个形容词解释

    1. occurring every second year
      [同] biennial, biyearly
      [例]
      • they met at biennial conventions
    2. having a life cycle lasting two seasons
      [同] biennial, two-year
      [反] annual, one-year, perennial
      [例]
      • a biennial life cycle
      • parsnips and carrots are biennial plants often grown as annuals