perennial
英 [pəˈreniəl]
[ADJ, NOUN]
1. （问题或困难）不断出现的 , 长期存在的
You use perennial to describe situations or states that keep occurring or that seem to exist all the time; used especially to describe problems or difficulties.
近义词
双语例句
例：the perennial urban problems of drugs and homelessness.
城市长期存在的毒品和无家可归的问题。
2. （植物）多年生的
A perennial plant lives for several years and has flowers each year.
双语例句
例：a perennial herb with greenish-yellow flowers.
一种开黄绿色花的多年生草本植物。
ADJ. 形容词
perennials
1. [C 可数名词] 多年生植物
A perennial is a plant that lives for several years and has flowers each year.
双语例句
例：a low-growing perennial.
一种多年生低矮植物。
NOUN. 名词
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