In 1961 he left the official work and started his scientific career.

The latter is an official work, the former a national product.

All the official work is done based on this calendar.

Duty time may not be used for purposes other than official work.

He obtained a considerable amount of official work from the government.

"I think the nation can differentiate between events of a private nature and official work," he said.

The seals may have been used in trade and also for official administrative work.

This gave Hoffmann's book the look of an official work by the office.

We also have an obligation to protect the children who might believe they are reading the official work.

Because this isn't official work, and you're free to say no.