to give someone a vaccine , usually by injection , to prevent them from getting a disease
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例句
1. Local health officials then can plan the best times to vaccinate people. 这样,当地的卫生官员就可以安排最佳时间给人们接种疫苗。 2. Doctors vaccinate us so that we do not catch smallpox. 医生给我们打预防针使我们不会得天花。