Read Edit View history 主动免疫 zhǔdòngmiǎnyì active immunity Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 主动免疫/ 主動免疫 zhǔdòngmiǎnyì active immunity 接种疫苗是获得主动免疫最有效的手段之一。 Edit Delete References Add reference No references for this word.