名词
中文翻译：接种
同义词：
['immunization', 'inoculation', 'vaccination']
例句：
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1.The vaccine has been shown to be effective against the virus.
这种疫苗已被证明对这种病毒有效。
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2.Vaccination is a crucial step in preventing infectious diseases.
疫苗接种是预防传染病的关键步骤。
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3. The government has mandated that all children receive their first vaccination by the age of two.
政府规定所有儿童必须在两岁前接种第一剂疫苗。