doubtfully(副词):怀疑地;不确定地;带着疑虑地。常用来描述说话、看法或判断缺乏把握。(另有较少见用法可表示“令人怀疑地/可疑地”。)
/ˈdaʊt.fəl.i/
She looked at the offer doubtfully.
她怀疑地看着这个提议。
Although the plan sounded promising, investors listened doubtfully because the data was incomplete and the risks were high.
尽管这个计划听起来很有前景,但由于数据不完整且风险很高,投资者仍带着疑虑地倾听。
来自 doubt(怀疑)+ 副词后缀 -fully(以……方式、充满……地)+ -ly(构成副词)。核心含义是“以充满怀疑的方式”。