unknowingly       
adverb  literary uk/ʌnˈnəʊ.ɪŋ.li/ us/ʌnˈnoʊ.ɪŋ.li/
 未意识到的,未察觉地
in a way that is not conscious of a particular situation or problem
  Several drivers unknowingly parked in the wrong place. 几名司机在不知情的情况下把车停错了地方。 
 Millions of people unknowingly ate infected beef for years. 多年来数百万人在不知情的情况下吃了被感染的牛肉。 
 See: unknowing
 - More examples
- They had been unknowingly infected for years.
- She unknowingly revealed facts about the organization's inner structure.
- Residents often unknowingly attract bears by leaving food outside their homes for pets.