You need to retain this document and present it to Immigration on leaving the country.

Britain needed to retain some of this equipment in the immediate post war period.

In many states, physicians need a certain number of such credits to retain their medical licenses.

Of course, we need to retain some protection for skiers.

This was only temporary however, as she needed Drew to retain custody of her children.

The partners need to retain working capital in the practice.

"In the cold war you needed to retain that," he said of the threat to use nuclear arms first.

Secondly, we need to retain the details as they are included in the common position.

We merely need to retain a certain degree of control over taxpayers' money.

We also need to retain the option of military intervention in this situation.