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以上来源于: WordNet
N any perennial marsh plant that bears its overwintering buds in the mud below the surface (芽在水下越冬的)沼生植物
During the drawdown period, the vegetation is structured by helophytes and emergents.
在水位下降期间，植被主要由沼生植物和挺水植物组成。
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During the drawdown period, the vegetation is structured by helophytes and emergents;
低水位时，植被主要由沼生植物和挺水植物组成；
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