preinducer

例句：

1. 1. The preinducer is responsible for triggering the immune response.
   预诱导者负责触发免疫反应。
2. 2. The study found that preinducers could enhance the efficacy of vaccines.
   研究发现，预诱导者可以提高疫苗的有效性。
3. 3. The researchers identified several preinducers that could be used to treat cancer.
   研究人员发现了几种可以用于治疗癌症的预诱导剂。