名词
中文翻译：初级寄主
同义词：
['primary host', 'primary vector']
例句：
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1.The disease is primarily transmitted through mosquitoes.
这种疾病主要通过蚊子传播。
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2. The study focused on the role of primary hosts in disease transmission.
该研究关注了初级宿主在疾病传播中的作用。
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3. The research team identified a new species of parasite that feeds on primary hosts.
研究团队发现了一种新物种的寄生虫，它以初级宿主为食。