doubter /ˈdaʊtə/

• 1. 

  N-COUNT If you refer to people as doubters, you mean that they have doubts about something, especially their religious or political system. (宗教和政体的)怀疑者 [usu pl]

  例：

  Some doubters fear this news may not be as good as it appears.

  一些持怀疑态度的人担心这条新闻可能并非像其表面上那样美好。