Many people hold a firm belief that the cure for cancer will be found one day.

许多人坚信有一天会找到治愈癌症的方法。

He had no firm belief, and he was lost.

他没有坚定的信念，他迷失了方向。

As her teacher, I have the firm belief of it.

作为她的老师，我对此深信不疑。

They entertained a firm belief in final victory.

他们对最后胜利抱有坚定信心。

We entertain a firm belief in the final victory.

我们对最后胜利抱有坚定的信念。