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TOEFL IELTS BNC: 11757 COCA: 8869
perennial
pəreniəl pəˈrɛniəl
Word forms: plural perennials
1 ADJ-GRADED [usually ADJ n] (尤指问题或困难)永恒的,持续的,亘古不变的 You use perennial to describe situations or states that keep occurring or which seem to exist all the time; used especially to describe problems or difficulties. (尤指问题或困难)永恒的,持续的,亘古不变的
  • ...the perennial urban problems of drugs and homelessness.

    毒品和无家可归这两个一直困扰城市的问题

  • There's a perennial shortage of teachers with science qualifications.

    有理科教学资格的老师一直都很短缺。

perennially
  • Both services are perennially short of staff.

    两个机构一直都是人手不够。

2 ADJ [usually ADJ n] (植物)多年生的 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.

    开绿黄色花的多年生香草

Perennial is also a noun.
  • ...a low-growing perennial.

    多年生矮小植物

Trends of perennial
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