postnatal immunity

例句：

1. 1.The mother's postnatal immunity is crucial for her baby's health.
   母亲的产后免疫力对婴儿的健康至关重要。
2. 2. Researchers are exploring the role of postnatal immunity in preventing infections.
   研究人员正在探索产后免疫力在预防感染中的作用。
3. 3. Postnatal immunity is a complex biological process that requires careful monitoring and management.
   产后免疫力是一个复杂的生物过程，需要仔细监测和管理。