献身于

He dedicated his life to the cause of education.

他于教育业。

He consecrated his life to helping the poor.

他于帮助穷人。

We should devote ourselves assiduously and faithfully to the duties of our profession.

我们应当勤奋而且忠诚于我们的职责。

We looked up to you as a shining example of devotion to the scientific cause.

我们你看作为于科业的光辉榜样。