From a technological perspective, antibodies are incredible tools because antibodies are molecules that are specifically designed to bind to a particular antigen or a particular chemical.

从技术角度上来说,抗体是一种令人难以置信的分子,它们被设计来,特异性地结合抗原,或者某种化学物质

耶鲁公开课 - 生物医学工程探索课程节选

So a vaccine is designed in order to engage that biology, in order to provide antigens that will stimulate specifically your immune system.

所以疫苗的作用就是参与这个生理活动,提供抗原 来刺激你的免疫系统

耶鲁公开课 - 生物医学工程探索课程节选