我很乐观。

I'm very optimistic.

一切都会好的。

Things will turn out all right.

我有很大把握获胜。

I feel quite sure about winning.

我相信你会获得这份工作的。

I'm confident that you will get this job.

成功在望。

Success is insight.

我很有信心你会成功的。

I have every confidence in your success.

毫无疑问。

There's no doubt that....

你一定会成功的。

You're bound to succeed.

我深信好心有好报。

I firmly believe that one good turn deserve another.

你现在所做的一切都会有回报的。

What you are doing now will be rewarded.

我们的努力会是值得的。

Our efforts will be worthwhile.