寄生是一种捕食者与被捕食者之间的关系，寄生者利用共生伙伴——宿主来获取食物。
Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host.
我们研究的是一类基于个体相互作用的带有传染病的捕食者与被捕食者模型。
What we study is a kind of prey-predator model with epidemic spreading in it based on agents' interactions.
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