mirror属于可数名词不是不可数名词，mirrors中文意思是n. [轻]镜子（mirror 的复数）反光镜写实模范

Despite the fact that I have tried to be objective， the book inevitably mirrors my own interests and experiences.尽管我曾努力做到客观，但这本书还是不可避免地反映出了我自己的兴趣和经历。