biennial

adj.

（事件）两年一次的；

n.

两年生植物；

复数：biennials

biennial plant二年生植物

1. Every union has its own annual or biennial meeting.
   每个工会都有自己的年会或每二年一次的大会。
2. The workers were strongly against the biennial election.
   工人们强烈反对两年一次的选举。
3. They met at biennial conventions.
   他们是在两年举行一次的大会上遇见的。
4. All annual and biennial plants are monocarpic.
   所有一年生及二年生植物都是结果一次后死去。

1. This is a biennial, and one of the most useful pasture plants we have.
   这是两年生植物,也是我们最有用的牧草之一。

The quasi-biennial oscillation
The quasi‐biennial oscillation
The influence of the equatorial quasi-biennial oscillation on the global circulation at 50 mb
Colorectal Cancer Mortality: Effectiveness of Biennial Screening for Fecal Occult Blood
A report of the first biennial meeting on Capita Selecta in Complex Disease Analysis (CSCDA2010), Leuven, Belgium, August 25-27, 2010
Complex population dynamics and control of the invasive biennial Alliaria petiolata (garlic mustard)
Colonizing Abilities of 'Biennial' Plant Species in Relation to Ground Cover: Implications for their Distributions in a Successional...
Atlantic Seasonal Hurricane Frequency. Part I: El Niño and 30 mb Quasi-Biennial Oscillation Influences
Mandel J, Church TR, Ederer F, Bond JHEffectiveness of biennial screening for fecal occult blood. J Natl Cancer Inst 91: 434-437
Geographic patterns of herbivory and resource allocation to defense, growth, and reproduction in an invasive biennial, Alliaria peti...