名词
中文翻译：水生植物
同义词：
['aquatic plant', "aquatic vegetation例句：1. The water hyacinths were once common in the lake's shallow areas.（水葫芦曾经是湖泊浅水区常见的。）"]
例句：
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1. The water hyacinths were once common in the lake's shallow areas.
水葫芦曾经是湖泊浅水区常见的。
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2. The researchers found that the water hyacinths had significantly reduced the oxygen levels in the water.
研究人员发现，水葫芦显著降低了水中的氧气含量。
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3. The water hyacinths are now considered an invasive species and are banned from certain areas.
水葫芦现在被认为是一种入侵物种，在某些地区被禁止种植。