如果不得不重赛，我们有信心赢。

If there has to be a replay we are confident of victory.

《柯林斯英汉双解大词典》

我们有信心他们会在这方面做得很好。

We are confident they will do a good job in this domain.

youdao

谢谢你的支持，我们有信心做好这个项目。

A: Thanks for your support. We are confident to do well in this program.

youdao

I'm optimistic about the audio equipment and about our slide material and things such as that.

我对我们的音响设备,和我们的投影材料等都很有信心

耶鲁公开课 - 聆听音乐课程节选

It's not considered good form to say, I think we're about to have a crisis of confidence and the whole house of cards is going to collapse.

说我认为我们即将有个信心危机，或者所有计划都将破灭,是不明智的。

耶鲁公开课 - 金融市场课程节选

So, that's not exactly the case and we're going to start in at the point where right around this time of great confidence of feeling all has been conquered, there are some observations and discoveries that are made that completely break down these theories.

把测量弄的更精确一点,但事实并不如他说的这样,我们就要从这时候谈起,当时人们十分有信心的,觉得已经征服了一切问题,但有一些实验和观察,彻底粉碎了这种看法。

麻省理工公开课 - 化学原理课程节选