劍橋詞典medical specialized the process of protecting a person or animal from an infectious disease by putting a substance into the body that makes it produce antibodies (= proteins in the blood that fight disease ) 免疫接種 mass /routine immunization 大規(guī)模／例行接種 Immunization gives people the ability to resist infection temporarily or permanently . 免疫接種可讓人可以永久或暫時(shí)地抵抗感染。 With the use of immunizations in babies , the mortality rate has dropped significantly . 開(kāi)展嬰兒免疫接種以來(lái)，死亡率顯著下降了。 返回 immunization