doubtful

英文单词：doubtful

形容词

1. 有疑虑的；可疑的：

He gave a doubtful smile.

他露出了一个怀疑的微笑。

2. 不确定的；难以预测的：

It is doubtful whether he will come.

他是否会来还不确定。

名词

1. 怀疑的人；疑虑：

The proposal met with some doubtfuls.

这个提议遭到了一些怀疑。

词语辨析

doubtful 与 dubious 区别：

doubtful 指“令人怀疑的”、“不确定的”，强调不确定性；dubious 指“可疑的”、“靠不住的”，强调对事物真实性或可靠性的怀疑。

词汇扩充

近义词： uncertain, questionable, suspicious

反义词： certain, confident, trustworthy

柯林斯词典

adjective

1. If you say that something is doubtful, you mean that it is not certain, or not likely to be true. (FORMAL)

牛津词典

adjective

1. Not known for certain; questionable.

用法

doubtful 可以用作形容词，表示不确定的、可疑的，也可以用作名词，表示怀疑的人或疑虑。

中英双语例句

1. The outcome of the investigation is still doubtful.

调查结果仍是不确定的。

2. It is doubtful whether he will pass the exam.

他是否会通过考试还不确定。

3. The witness's testimony was doubtful and lacked credibility.

证人的证词令人怀疑，缺乏可信度。

4. She gave him a doubtful look, wondering if he was telling the truth.

她用怀疑的眼神看着他，想知道他是否在说实话。

5. The weather forecast is doubtful for the weekend, so we might have to cancel the picnic.

周末的天气预报不太乐观，所以我们可能得取消野餐计划。

6. The authenticity of the painting is doubtful, as there are conflicting reports about its origins.

这幅画的真实性令人怀疑，因为关于它的起源存在矛盾的报道。

7. His explanation for the missing money seemed doubtful to the authorities.

他对于丢失的钱款的解释在当局看来似乎是站不住脚的。

8. The team's chances of winning the championship are doubtful after their star player got injured.

球队赢得冠军的机会在他们的明星球员受伤之后变得不确定起来。

9. The witness's account of the incident was doubtful and contradicted by other testimonies.

目击者对事件的描述令人怀疑，并且被其他证词所反驳。

10. She was doubtful about accepting the job offer, as it required her to relocate to a different city.

她对于接受这份工作的offe感到犹豫，因为这需要她搬到另一个城市。

11. The company's financial situation remains doubtful due to the ongoing legal disputes.

由于持续的法律纠纷，公司的财务状况仍然不明朗。

12. The witness's doubtful testimony was not enough to convict the defendant.

目击者可疑的证词不足以定罪被告。

13. The teacher gave a doubtful explanation for the mistake on the test paper.

老师对试卷上的错误给出了一个站不住脚的解释。

14. The authenticity of the antique vase is doubtful, as it lacks proper documentation.

这个古董花瓶的真实性是值得怀疑的，因为缺乏适当的文件证明。

15. His alibi for the night of the crime was doubtful and did not hold up under scrutiny.

他对犯罪当晚的不在场证明令人怀疑，在审查中站不住脚。

16. The company's future prospects are doubtful after the sudden resignation of its CEO.

公司的未来前景因CEO的突然辞职而变得不明朗。

17. She cast a doubtful glance at the weather forecast and decided to bring an umbrella just in case.

她瞥了一眼不太乐观的天气预报，决定带把伞以防万一。

18. The authenticity of the painting was doubtful until it underwent thorough examination by experts.

这幅画的真实性一直备受怀疑，直到经过专家的彻底检查才得到证实。

19. The witness's doubtful testimony raised questions about the credibility of the entire investigation.

目击者可疑的证词引发了对整个调查的可信度的质疑。

20. The teacher's explanation for the missing homework was doubtful and did not satisfy the students.

老师对于缺失的作业的解释令人怀疑，没有让学生满意。