perennial
a. 常年的, 长期的, 反复的 [医] 多年生的
发音
词形变化
别名
释义与例句
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1.
A plant that is active throughout the year, or has a life cycle of more than two growing seasons.
多年生
生物 植物学 -
2.
A thing that lasts forever.
引申义 -
3.
A person or thing (such as a problem) that appears or returns regularly.
引申义
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1.
Lasting or remaining active throughout the year, for multiple years, or all the time.
常年
a perennial stream
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2.
Continuing without cessation or intermission for several years, or for an undetermined or infinite period; never-ending or never failing; perpetual, unceasing.
比喻His artwork has a perennial beauty.
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3.
Appearing or recurring again and again; recurrent.
比喻a perennial candidate in elections
Change is a perennial theme in politics.
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4.
Appearing or recurring again and again; recurrent.
Appearing again each year; annual.
比喻 罕用 -
5.
Of a plant: active throughout the year, or having a life cycle of more than two growing seasons.
多年生
生物 植物学
词汇关系
相关短语
词源
The adjective is borrowed from Latin perennis (“lasting through the whole year or for several years, perennial; continual, everlasting, perpetual”) + English -al (suffix meaning ‘of or pertaining to’ forming adjectives). Perennis is derived from per- (“completive or intensifying prefix with the sense of doing something all the way through or entirely”) + annus (“year; season, time”) (possibly ultimately from Proto-Indo-European *h₂et- (“to go”)). By surface analysis, per- + -ennial. The noun is derived from the adjective. Cognates * Middle French pérenne (modern French pérenne (“lasting through the whole year, perennial”)) * Italian perenne (“lasting for a long time”) * Spanish perenne (“eternal; permanent; a perennial plant”)
来源：wiktionary