resolutely

a. 坚决地,果断地
ad. 果断地,坚决地

Provided they fight resolutely, the enemy can never break in.

只要他们坚决地打，敌人就打不进来。

Our troops stood out resolutely against the long siege of the enemy.

我们的部队顽强地顶住了敌人长时间的围困。