Definition: in a way that is certain or fixed Level: B2
我坚信我们必须立即采取行动。
I ___firmly believe that we must take immediate action.
我坚信你提到的一些事情是错误的。
I ___firmly believe that some of the things you mentioned are wrong.
委员会全体成员都坚定地支持这一决定。
The decision was ___firmly supported by all members of the committee.
