Everyone has their moments of worry and doubt.

每个人都有担心和疑惑的时候。

youdao

If you're unsure of what you want, you start to fumble and doubt yourself.

如果你没有确定你想要的是什么，你就开始犹豫并怀疑你自己。

youdao

That is their role in duality you see, to ensnare you in confusion and doubt.

你瞧，这就是他们在二元性的角色，让你陷入困惑与怀疑当中。

youdao

"And as Iran's leaders continue to ignore their obligations, there should be no doubt: they,too, will face growing consequences.

VOA: special.2010.01.30

And after the usual amount of scholarly debate, there seems to be no doubt that it was the City of Troy.

经过一番学术讨论之后,这里被确定为特洛伊城

耶鲁公开课 - 古希腊历史简介课程节选

And in general, what I would say is, when in doubt, use parens. OK.

因此通常上，我会告诉大家的是，当有疑问的时候，请用括号，好。

麻省理工公开课 - 计算机科学及编程导论课程节选

I've never taken one, and doubt I will unless I'm hard up for a column.

WSJ: Yielding With a Purpose

The negative twins of fear and doubt also cast a long shadow on my soul.

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You will have failures and setbacks and critics and plenty of moments of frustration and doubt.

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