The grand-chamberlain of the court, was, besides, well seconded in his arduous and delicate duties.

He did not neglect his not very arduous duties.

This has been an arduous duty for you.

I strongly recommend that we leave such arduous duties to your two companions, who will undoubtedly have asked themselves the same question.

In turn he was almost in awe of her sophistication, the worlds she'd seen, people she'd met, the arduous naval duty.

All firefighters are required to perform arduous duty.

Despite their equally dangerous and arduous duties they were officially called "mounted infantry."

That's my arduous duty: expert guide and interpreter to every subculture on Earth.

It was a case of shirking or fulfilling a most arduous duty.

The clubhouse was intended to provide a place "where registered nurses may live and enjoy the few quiet hours spared from their arduous duties."