同义词： inoculator
以上来源于: WordNet
vaccination knife
词根： vaccine
vaccine 疫苗的；牛痘的
vaccine 疫苗；牛痘苗
vaccination 接种疫苗；种痘
vaccinate 被接种牛痘者
vaccinia [兽医] 牛痘
vaccinate 接种疫苗
vaccinate 给…注射疫苗
He had never been vaccinated despite having once served as a vaccinator and despite having worked at the hospital where employee vaccinations were supposed to be mandatory.
虽然他曾经作为种痘员工作过，而且还在医院工作，而在那里雇员种痘是强制的，但他却从未种过痘。
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