I will steadfastly strive towards my goal.

我会坚定地朝着目标努力奋斗。

I am for your suggestions steadfastly.

我毫不动摇地支持你的建议。

As a young man, you need to do your career steadfastly.

作为一个年轻人，你应该坚定地去做你的事业。

She steadfastly maintained that her grandsons were innocent, and nothing could dissuade her from that belief.

她始终坚持她的孙子们是无辜的，没有什么能改变她的这一信念。

I advise you to do it steadfastly.

我建议你踏实不变地这样去做。

But he steadfastly denied any intentional wrongdoing.

但他坚决否认曾有任何不良企图。

Sleep in order to work steadfastly, work is to sleep.

睡觉是为了踏实地工作，工作是为了踏实睡觉。

This newspaper has argued steadfastly for the right of Israel to exist.

本报毫不动摇地为以色列拥有存在的权利据理力争。