We are confident of a successful outcome.

我们相信会有圆满的结果。

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

如果不得不重赛，我们有信心赢。

Buoyed by their win yesterday the team feel confident of further success.

在昨天胜利的鼓舞下，该队有信心再次获胜。

I am very confident of this.

我对这个很有自信。

Mr. Ryan is confident of success.

瑞安先生对成功有信心。