immunopotentiation

例句：

1. 1. The vaccine was designed to enhance the body's natural immunity against the virus.
   这种疫苗旨在增强人体对病毒的自然免疫力。
2. 2. The research suggests that regular exercise can be an effective way to boost one's immune system.
   研究表明，定期锻炼可以有效提高一个人的免疫系统。
3. 3. The study found that a certain type of bacteria could serve as an immune boost for people with weakened immune systems.
   研究发现，某种细菌可以作为免疫系统较弱人群的免疫增强剂。