totally or partially resistant to a particular infectious disease or pathogen. "they were naturally immune to hepatitis B"
adjective [原级] 免疫的；不受影响的；免除的，豁免的
Our immune systems are killing billions of germs right now. 我们的免疫系统正在杀死数以十亿计的细菌。
noun [专属名词] 免疫者，免除者
His immune system completely broke down and he became very ill. 他的免疫系统彻底崩溃了，他已病入膏肓。
