I have doubts about the practicality of their proposal.

我怀疑他们的建议是否行得通。

《牛津词典》

Liberals have doubts about her, too.

开明的人们对她同样有疑虑。

youdao

Did he have doubts?

他迟疑了没有？

youdao

No wonder that with an uncertain voice coming out of the White House, Americans will have their doubts,".

VOA: standard.2009.09.22

Dante He mentions Virgil and Dante, and it seems like the desperation of bringing up such grand figures makes me think that he does have doubts.

他提到了Virgil和，提到的那些伟大的人物时他的绝望,让我觉得他也心存疑惑。

耶鲁公开课 - 1945年后的美国小说课程节选

They may swallow their doubts because they have a sense that it will improve the market for their shares.

对这些疑虑他们只有忍受,因为他们很清楚,公司上市会增加他们的市场份额

耶鲁公开课 - 金融市场课程节选

And when major setbacks occur, they have doubts about whether the company can still win.

FORBES: Play to Win!

Before he was assassinated in September 1901, McKinley himself had come to have doubts about it.

NPR: 'Folly of Empire' Offers Critique of U.S. Imperialism

Though many Europeans have doubts, they look at enlargement resignedly, as an American show.

CNN: Clinton And Yeltsin Agree To Disagree