Self-doubt is that feeling of uncertainty about your ability to accomplish something.

自我怀疑就是我们对自己完成一项事务的能力感到不确定的一种感受。

youdao

Women have a vague attitude, clearly know man lies will not reveal, while men knew she know man was lying, so a suspected unreal feeling, is really doubt the woman's biggest chief force.

女人要有一种暧昧的姿态，明明知道男人说谎也不会拆穿，而男人也知道她知道男人在说谎，如此一种疑幻疑真的感觉，是女人最大的魁力。

youdao

Trust is a kind of feeling, or what, some friends in certain things lover, and no evidence for each other, no doubt, then the trust.

信任是一种感觉，还是什么，有的恋人、朋友在某些事情上，没有任何证据，就对对方产生怀疑，之后就没有了信任。

youdao

But what should not be in doubt is Mr Blair's strength of feeling on the subject, nor its centrality to his politics.

ECONOMIST: Bagehot

You get the feeling that for Newt self-doubt is when he thinks he may have only been savagely brilliant rather than furious genius made flesh.

BBC: Newt Gingrich and his campaign legacy

No doubt Mr Abbas, who is part of that generation of Arab leaders now feeling the heat of frustration across the region, hopes that he can seize the initiative, gaining popular support in the process.

BBC: What does Abbas hope to achieve with UN state bid?