stead,位置，地方，fast,坚固的，紧的，词源同 fasten.

1. They were impressed by his steadfast good cheer.

他整天笑呵呵的样子给他们留下很深的印象。

2. He remained steadfast in his determination to bring the killers to justice.

他要将杀人凶手绳之以法的决心一直没有动摇。

3. Her steadfast belief never left her for one moment.

她坚定的信仰从未动摇过.

4. He remained steadfast in his belief that he had done the right thing.

他一直坚信自己做得对。

5. For Lonnie above him, the light was a steadfast friend.

对于他上面的隆尼, 这盏灯是一个忠实不渝的朋友.