名词
中文翻译：寄生虫
同义词：
['parasite', 'worm']
例句：
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1.This disease is caused by a parasite that feeds on the blood of its host.
这种疾病是由一种寄生虫引起的，这种寄生虫以宿主的血液为食。
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2. The parasite has been found in many different parts of the world.
这种寄生虫在世界上许多不同的地方都有发现。
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3.Parasites can cause serious health problems for their hosts.
寄生虫可以严重危害它们宿主的健康。