perennial
adjective
/pəˈɹɛn.i.əl/
,
/pəˈɹɛn.j(ə)l/
,
/pəˈɹɛn.ɪ.əl/
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- of a plant: active throughout the year, or having a life cycle of more than two growing seasons
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多年生
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- continuing without cessation or intermission for several years, or for an undetermined or infinite period
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永続
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