perennial
adj. 永久的；反复出现的；多年生的
n. 多年生植物
副词：perennially
近义词：perpetual，constant，regular，continuous，steady，recurrent，returning，persistent，lasting，continuing，permanent，enduring，unfailing，annual，ceaseless，changeless，classic，repeated，annual，biennial，
英英释义
Noun
- (botany) a plant lasting for three seasons or more
Adjective
- lasting three seasons or more;
"the common buttercup is a popular perennial plant"
- lasting an indefinitely long time; suggesting self-renewal;
"perennial happiness"
- recurring again and again;
"perennial efforts to stipulate the requirements"
例句
用作形容词(adj.)
- Politics provides a perennial subject for argument.政治是一种长期争论不休的话题。
- Our perennial problem is not having enough money.长期困扰我们的问题就是缺钱。
- The dandelion is a perennial plant.该蒲公英是一种多年生的植物。
用作名词(n.)
- A galaxy is an evergreen perennial.加莱克斯草是一种多年生常绿植物。