名词
中文翻译：巨型水葫芦
同义词：
['water hyacinth', 'water lily例句：1. The giant knotweed was a major problem in the river.（巨型水葫芦是这条河的主要问题。）']
例句：
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1. The giant knotweed was a major problem in the river.
巨型水葫芦是这条河的主要问题。
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2.The giant knotweed was so large that it blocked the path.
巨型水葫芦太大了，挡住了路。
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3.The giant knotweed is a common sight in many rivers and lakes.
巨型水葫芦是许多河流和湖泊中的常见景象。