A doubt niggled at her.

一丝疑惑困扰着她。

《牛津词典》

Several gorgeous gentlemen stood near—his servants, without a doubt.

几位仪表堂堂的绅士站在附近——毫无疑问是他的仆人。

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Without a doubt, you would find it dull at first the loudest sound is usually birdsong.

毫无疑问，一开始你会发现它的声音很沉闷，最大声的声音通常是鸟鸣声。

youdao

"Without a doubt we will hit more obstacles.

VOA: special.2010.08.21

Even the expulsion of Satan from heaven was not sufficient to prove beyond a shadow of a doubt the legitimate authority of God.

即使是将撒旦逐出天堂也不足以,无可置疑的证明上帝的至高权威。

耶鲁公开课 - 弥尔顿课程节选

There seems to be a doubt, a variety of doubts, about the foundations of what we can think about the basis of our opinions, that pervades theory, and is seen somehow or another to characterize its history.

有些事物，是我们思想的基础和看法的依据,但理论中却充斥着对它们的质疑，而这些质疑也被视为理论的特征之一。

耶鲁公开课 - 文学理论导论课程节选

Certainly, there was never a doubt who would sing it: the Arkansas-born, Southern-mythologizing Helm.

CNN: Levon Helm, co-founder of The Band, dead at 71

Maybe she absolutely never had a doubt, even though she turned out to be wrong.

FORBES: Magazine Article

Being a father has been, without a doubt, my greatest source of achievement, pride and inspiration.

FORBES: The Source of My Greatest Happiness Has Always Been Our Children