名词
中文翻译：疫苗
同义词：
['vaccine', 'vaccines']
例句：
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1.The poliovaccine is a crucial component in the prevention of infectious diseases.
疫苗是预防传染病的关键成分。
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2. The new poliovaccine has been shown to be highly effective against the virus.
新型疫苗已被证明对这种病毒具有很高的有效性。
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3.The poliovaccine was developed by scientists working together to combat the pandemic.
疫苗是由科学家共同研发以应对大流行的。