dubitative mood

例句：

1. 1. The new policy has raised doubts about its effectiveness.
   新政策引起了对其有效性的怀疑。
2. 2. He was accused of being dubitative in his decision-making process.
   他被指控在决策过程中持怀疑态度。
3. 3. She had a dubitative mood about the outcome of the meeting.
   她对会议结果持怀疑态度。