doubtful

US /ˈdaʊt.fəl/

UK /ˈdaʊt.fəl/

怀疑的, 不确定的

feeling uncertain about something

•

I'm doubtful about his ability to finish the project on time.

我对他的能力能否按时完成项目感到怀疑。

•

She gave a doubtful look when he explained his plan.

当他解释他的计划时，她投来怀疑的目光。

可疑的, 不太可能的

unlikely to be true or to happen

•

It's doubtful that they will agree to our terms.

他们是否会同意我们的条款是可疑的。

•

The success of the mission remains doubtful.

任务的成功仍然是可疑的。