One kind of response is called the innate response and innate means that it's present from the beginning.

其中之一称为先天性免疫反应,先天的意思是生来就有的

耶鲁公开课 - 生物医学工程探索课程节选

your innate immune system tries to get rid of them.

你的先天性免疫系统试着去清除细菌

耶鲁公开课 - 生物医学工程探索课程节选