名词
中文翻译：寄生虫
同义词：
['parasite', 'worm']
例句：
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1.The disease is caused by a parasite that feeds on the host's blood.
这种疾病是由一种寄生虫引起的，它以宿主的血液为食。
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2. Parasites are often found in soil and can cause damage to crops.
寄生虫通常存在于土壤中，并可能对农作物造成损害。
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3.The parasite is responsible for the symptoms of the disease.
这种寄生虫是导致疾病症状的原因。