献身于

He consecrated his life to helping the poor.

他帮助穷人。

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

我们应当勤奋地而且忠诚地我们的职责。

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

我们把你看作为业的光辉榜样。

He dedicated his life to the cause of education.

他教育业。