tertiary parasitism

例句：

1. 1. The tertiary parasitism of the parasite is a significant factor in its survival strategy.
   寄生虫的次级寄生是其生存策略中的一个关键因素。
2. 2. The research on tertiary parasitism has led to new insights into the ecology of the host-parasite system.
   对次级寄生的研究揭示了宿主-寄生系统生态的新见解。
3. 3. The tertiary parasitism of the parasite can be exploited for biological control purposes.
   寄生虫的次级寄生可以用于生物控制目的。