We firmly believe that our just cause will succeed.

我们坚信我们的正义事业必定胜利。

《新英汉大辞典》

We firmly believe that sport can bring the world together.

杰瑞米·基利说：“我们坚信，体育可以把整个世界连在一起。”

youdao

We firmly believe that we will become trumps in the near future.

坚信在不久的将来，我们一定会成为王牌。

youdao

Yet we firmly believe that a free press is a principle worth fighting for.

BBC: Leveson report: Media reaction

We firmly believe that America, with your guidance, can help foster that peace, though real peace can only be shared - never imposed.

CENTERFORSECURITYPOLICY: Center For Security Policy

We firmly believe that in the end, because there is such, now, overwhelming support for the payroll tax cut and extending it for a year, that this will get done.

WHITEHOUSE: Press Briefing