Our level of attraction to the opposite sex has more to do with our inner confidence than how we look.

我们对异性的吸引程度更多地与我们内心的自信有关，而不是外貌。

《柯林斯英汉双解大词典》

When you do sports, you will be full of confidence.

你做运动的时候会充满信心。

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If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment.

他们告诉我们，如果我们这样做了，我们将能够有信心和陌生人见面，并自信地处理每一种情况而不会尴尬。

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"We never will move out of the crisis if we do not re-establish confidence, which means we have to establish signposts for the future."

VOA: special.2009.01.23

Why do you have confidence putting it in contact with one of the most important organs of your body?

为什么你对它有信心,让它接触,你身上最重要的器官

耶鲁公开课 - 生物医学工程探索课程节选

Do you think that having plastic surgery will help people have more confidence?

你觉得做整形手术会帮人获得更多自信吗？

关于整形手术 - SpeakingMax英语口语达人

However I do have confidence in my own ability, and I hope someone else will give me an opportunity to do what I enjoy.

BBC: Alex part ways with chief scout

But moving forward, I think a lot of this has to do with confidence, as you said.

WHITEHOUSE: Rural Tour Day 3: Atkinson, Ill Town Hall

President GEORGE W. BUSH: I do have confidence in Attorney General Al Gonzales.

NPR: Republican Senator Urges Gonzales to Resign