sceptically       
adverb UK (also mainly US skeptically) uk/ˈskep.tɪ.kəl.i/ us/ˈskep.tɪ.kəl.i/
 怀疑地,持怀疑态度地
in a way that shows you doubt whether something is true or useful
  "What good will that do?" asked Jo sceptically.  “那有什么好处?”乔怀疑地问道。 
 See: sceptical
 - More examples
 - "Oh, come on," she said sceptically. "Are you telling me you've never been tempted?"
 - Wootton lifted his eyebrows sceptically. "Do we?"
 - The woman looked at her sceptically now.
 - The announcement was greeted sceptically by the press.
 - Sam listened intently and somewhat sceptically as Rachel continued.