Read Edit View history 加强针 jiāqiángzhēn booster shot Origin Definitions Defs Strokes Stroke Words Sentences Sents 加强针 加強針 jiāqiángzhēn booster shot A supplementary dose of a vaccine meant to strengthen or renew the immune response to a previous immunization
加强针 加強針 jiāqiángzhēn booster shot A supplementary dose of a vaccine meant to strengthen or renew the immune response to a previous immunization