in·sid·i·ous·ly
adverb/ɪnˈsɪdiəsli/
/ɪnˈsɪdiəsli/
(formal, disapproving)- by spreading gradually or without being noticed, but causing serious harm
潜伏的；隐袭的；隐伏的 - This kind of advertising acts insidiously on young minds.
这种广告对年轻人的思想具有阴险的作用。
- This kind of advertising acts insidiously on young minds.