He is adorable for his devotion to science.

他献科学的精神令人敬佩。

His devotion to the cause of education is well-known.

他对教育事业的献精神是众所周知的。

The martyr laid down his life for the cause of national independence.

这位烈士是为了民族独立的事业而献的。

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献于我们的职责。

Mary's a committed nurse.

玛丽是一名有献精神的护士。