perennial

adj.

终年的，长久的；多年生的；不断生长的；四季不断的

n.

多年生植物；长期存在的；

复数：perennials

perennial plant多年生植物

perennial grasses多年生牧草

perennial ryegrass黑麦草

perennial root宿根

1. Politics provides a perennial subject for argument.
   政治是一种长期争论不休的话题。
2. Our perennial problem is not having enough money.
   长期困扰我们的问题就是缺钱。
3. The dandelion is a perennial plant.
   该蒲公英是一种多年生的植物。

1. A galaxy is an evergreen perennial.
   加莱克斯草是一种多年生常绿植物。

Perennial allergen sensitisation early in life and chronic asthma in children: a birth cohort study
Replacing Cheatgrass by Reseeding with Perennial Grass on Southern Idaho Ranges
Competition between Native Perennial and Exotic Annual Grasses: Implications for an Historical Invasion
The development and current status of perennial rhizomatous grasses as energy crops in the US and Europe.
Geostatistical Patterns of Soil Heterogeneity Around Individual Perennial Plants
The invasive shrub, Lonicera maackii, reduces growth and fecundity of perennial forest herbs.
Specific immunotherapy has long-term preventive effect of seasonal and perennial asthma: 10-year follow-up on the PAT study
Population dynamics and local specialization in a clonal perennial (Ranunculus repens). I. The dynamics of ramets in contrasting hab...
Immunolocalization of cytokines in the nasal mucosa of normal and perennial rhinitic subjects. The mast cell as a source of IL-4, IL...
Evaluating restoration methods across a range of plant communities dominated by invasive annual grasses to native perennial grasses.