in doubt

phr

• ① 怀疑的;不确定的
  • If in doubt, call the doctor.如有疑问,打电话给医师。
  • He's in doubt (about [as to]) what to do.他不知道该怎么办。
  • The outcome hangs [remains] in doubt.结果悬而未决。
  • His new appointment was still in doubt.他的新任命仍有疑问。
  • He's in no doubt as to where to go.至于要到哪里去,他毫无疑问。