The germination characteristics of forty annual plants of the alpine meadow on the Qinghai-Tibet Plateau;
青藏高原高寒草甸40种一年生植物种子的萌发特性研究
Composition and distribution characteristics of annual plant in desert area in Hexi Corridor
河西走廊荒漠区一年生植物组成及其分布特征
A field experiment on the reproductive allocation of the annual plant Eragrostis poaeoides was carried out in the re-vegetated areas in Shapotou of the Tengger Desert.
沙坡头人工固沙区不同始植年代一年生植物小画眉草(Eragrostis poaeoides)的繁殖分配研究。
The annual plants dominated the species and soil seed density during sand dune succession process.
土壤种子库物种组成和种子密度均以一年生植物为主。
Nitrogen concentrations,C/N ratios and δ13C values of 71 alpine plants(perennials and annuals)grown at the east of Qinghai-Tibet Plateau in natural condition were measured.
对生长在青藏高原东部隶属于23科、49属的71种高山植物(包括多年生和一年生植物)的稳定碳同位素比值、氮含量以及碳/氮比率进行了分析,并以稳定碳同位素比值及碳/氮比率来分别指示植物的水分利用效率和氮素利用效率。
Living or growing for only one year or season.
一年生的只生活或生长一年或一季的
Occurring once every100 years.
百年一次的每一百年发生一次的
Vintage, year of vintage The year in which a wine was made.
年份、酒年份：生产葡萄酒的那一年。
annual or perennial herbs or subshrubs.
一年生或多年生的亚灌木。
Some grasses last only a year. Others are perennial.
有些草只生长一年，有些则是多年生的。
annual or perennial herbs.
一年或多年生草本植物的一个属。
The life of the people is getting better and better each year.
人民的生活一年比一年好。
Another fresh new year is here, another year to live!
新的一年就在眼前，生命又将延续一年！
Perennials like the azalea and forsythia bloom year after year.
多年生的植物如杜鹃、连翘一年接一年地开花。
Are you a first-year student?
你是一年级的学生吗？
a first-year undergraduate.
第一年上大学的大学生。
It' s been a lean year for business.
这是生意清淡的一年。
the grand climacteric
(人一生中的) 大厄年
Matutinal intoxication of life!
一生中少年时代的陶醉！
occurring or payable twice each year.
每半年发生一次的或每半年支付的。
occurring every third year or lasting 3 years.
每三年发生一次的，或持续三年的。
This year we have produced as many TV sets again as compared with last year.
今年我厂生产的电视机比去年多一倍。
1979 was the year when my son was born.
1979年是我儿子出生的一年。