Noun:

1. (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

Adjective:

1. having a life cycle lasting two seasons;

   "a biennial life cycle"
   "parsnips and carrots are biennial plants often grown as annuals"
   

2. occurring every second year;

   "they met at biennial conventions"
   

1.两年一次的
Abiennial event happens or is done once every two years.

e.g. ...thebiennial Commonwealth conference.
两年一届的英联邦会议

2.二年生植物
Abiennial is a plant that lives for two years. It flowers, produces seed, and dies in its second year.

biennial的反义词

1.

1. 两年一次的：98.biannual一年两度的 |biennial两年一次的 | 99.chord琴弦

2.

2. 二年生的：bicapsular 二蒴果的 |biennial 二年生的 |biennial fodder crop 二年生饲料罪

3. biennial

3. 每两年的：bi-两,双 |biennial每两年的 | bilingual会说两语言的

a biennial convention

两年召开一次的大会

...the biennial Commonwealth conference.

两年一届的英联邦会议

Yasukuni Specialty Banlangen: Banlangen alias indigo root, indigo root, for the cruciferous biennial herbs.

安国特产板蓝根: 板蓝根别名靛根 、 蓝靛根, 为十字花科二年生草本植物.

biennial herb, such as conventional and mint etc.

二年生草本, 如青蒿,薄荷等.

She founded Open Circle Arts in Mumbai, and was part of the 2008 Sydney biennial.

她在印度孟买创办了公开发行艺术, 也参与了2008年的悉尼双年展.

The biennial watch list was begun in 1995 by the fund, a New York charity.

这个两年次的观察名单是基金会于1995开始公布的.该基金是纽约的一个慈善机构.

That group also hold a biennial global conference.

该小组也将举行两年一次的全球会议.

European biennial widely cultivated for its blue or violet or white flowers.

因其蓝色紫色或白色的花而被广泛种植的欧洲两年生草本植物.

Shanghai Art biennial Show, Shanghai Museum of Fine Art.

96上海美术双年展(海·上海美术馆).

The quasi biennial oscillation of global climate and equator ocean temperature are caused by.

南极上空臭氧变化和环南极海冰变化是赤道海温和全球气候准两年振荡的原因.

If the biennial cycle is broken for one year the trees normally bear annual crops subsequently.

如果一年里打破了大小年的循环周期,植株以后就可正常结果.

North American annual or biennial with long soft hairs on the leaves.

北美一年生或两年生植物,叶子上有柔软的长毛.

Parsnips and carrots are biennial plants often grown as annuals.

防风草和胡萝卜是二年生植物,但却经常被作为一年生植物来种植.

A total of 39 people received the biennial awards since 1996.

自1996年以来,共有39位中国科技工作者获此殊荣.

The yearly or the biennial visit is the rainbow on the horizon.

一年或两年一度的探亲如同天边的彩虹.

L. O. E. Schulz, an annual or biennial herbage of Cruciferae is a species of Brassicaceae.

诸葛菜(CorychophramusViolaceua. L. O. E. Schulz) 属十字花科(Cruciferae) 芸薹族诸葛菜属的一年生或两年生野生草本植物.

Grey biennial sticks, and that Arendt profiling fracture.

二年生枝灰色, 并可见纫纹纵裂.

They met at biennial conventions.

他们是在两年举行一次的大会上遇见的.

The workers were strongly against the biennial election.

工人们强烈反对两年一次的选举.

It may subsequently become a weak grower and a distinctly biennial cropper.

随后会引起树势衰弱,明显两年结一次果.

Participation of Taiwan, also known as Mount dangshen for Campanulaceae plants, biennial root dry.

台参又称五台山党参,为桔梗科植物, 二年生干燥根.

The 14 th Hong Kong Art biennial 2003 is here again.

第14届香港艺术双年展又来了!

The award ceremony a biennial event attended by many dignitaries.

该颁奖典礼是个两年一度的盛会,有许多达官显贵会参加.

His 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.

This is a biennial meeting.

这是两年一次的会议.

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.

South African annual or biennial plants having flowers that open only in bright sunlight.

南非一个一年或二年生植物属,其花只在明亮阳光下开放.

The next, and three succeeding biennial elections, I was elected to the Legislature.

在接下来的一次和连续三次的两年一度的选举中,我都取胜, 我被选入了议会.

European biennial formerly grown for the blue coloring matter yielded by its leaves.

欧洲两年生植物,原来用于提取染料的蓝色物质.

biennial sessions used to be the rule in America.

在美国,两年一次的会议已然是个惯例.