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Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
常年的
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常年的；长期的；反复的；[医] 多年生的
Lasting or remaining active throughout the year, for multiple years, or all the time.
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Lasting or remaining active throughout the year, for multiple years, or all the time.
Continuing without cessation or intermission for several years, or for an undetermined or infinite period; never-ending or never failing; perpetual, unceasing.
Appearing or recurring again and again; recurrent.
Of a plant: active throughout the year, or having a life cycle of more than two growing seasons.
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Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.