名词
中文翻译：水蛭同义词
同义词：
['leech', 'water snake']
例句：
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1. The navvy was a small creature that could be found in the riverbed.
水蛭是一种可以在河床找到的小生物。
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2. The navvy had a long body and sucked blood from its prey.
水蛭有长身体，从它的猎物身上吸取血液。
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3. The navvy was used to treat wounds and remove stagnant blood.
水蛭被用来治疗伤口和清除淤血。