doubt
ful
形容词比较级
more doubtful
形容词最高级
most doubtful
1
怀疑的, 不确定的
(of a person) uncertain or hesitant about something
- He appeared doubtful about the reliability of the information he received.
他对他收到的信息的可靠性显得怀疑。
- She seemed doubtful about the decision, unsure if it was the right choice.
她对这一决定显得怀疑，不确定这是否是正确的选择。
- He was doubtful about the success of the project, considering the tight deadline.
考虑到紧张的截止日期，他对项目的成功感到怀疑。
- She felt doubtful about the sincerity of his apology, wondering if it was genuine.
她对他的道歉的诚意感到怀疑，想知道这是否是真的。
- The student looked doubtful when asked if he understood the complex math problem.
当被问及是否理解这个复杂的数学问题时，那个学生看起来很怀疑。
2
可疑的, 不确定的
improbable or unlikely to happen or be the case
- Given the poor weather conditions, it's doubtful that the outdoor concert will take place as scheduled.
鉴于恶劣的天气条件，户外音乐会按计划举行是值得怀疑的。
- With no concrete evidence, it is doubtful that the jury will convict the defendant.
没有具体证据，陪审团判定被告有罪是值得怀疑的。
- The team's chances of winning the championship seem doubtful after their recent string of losses.
在最近的一连串失利之后，球队赢得冠军的机会似乎令人怀疑。
- It seems doubtful that they will finish the project on time given the current delays.
鉴于目前的延误，他们似乎不太可能按时完成这个项目。
- The weather forecast makes it doubtful that we will have a sunny weekend for the picnic.
天气预报让我们对野餐时能有一个阳光明媚的周末感到怀疑。
3
可疑的, 不确定的
not clearly known or proven
- The results of the experiment are doubtful due to inconsistent data.
由于数据不一致，实验的结果可疑。
- The source of the information is doubtful and requires further verification.
信息的来源可疑，需要进一步核实。
- The authenticity of the artifact remains doubtful.
这件工艺品的真实性仍然可疑。
- The cause of the accident is still doubtful.
事故的原因仍然可疑。
- The report's conclusions are doubtful and need more evidence.
报告的结论可疑，需要更多证据。