perennial
柯林斯词典
1. ADJ 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. 不斷出現的; 長期存在的 (問題、睏難)
...the perennial urban problems of drugs and homelessness. …城市長期存在的毒品和無家可歸的問題。
2. ADJ A perennial plant lives for several years and has flowers each year. (植物) 多年生的
...a perennial herb with greenish-yellow flowers. …一種開黃綠色花的多年生草本植物。
3. N-COUNT Perennial is also a noun. 多年生植物
...a low-growing perennial. …一種長不高的多年生植物。
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