His private life remains strictly off limits.

He'd wanted that to remain strictly between Hettie and himself.

As for virtual unreality, the use of alcohol and drugs will be prohibited, although how strictly remains to be seen.

The fleas were not in evidence at all; they remained strictly on the rats.

"And I further need you to understand that whatever services I ask of you are to remain strictly between us."

But the ship most American readers sail remains strictly within national borders.

"Soran ... what I have to tell you now must remain strictly between us."

Some onsen are available to tourists, but many remain strictly for locals.

Those few excepted were ordered to remain strictly at their jobs.

Profits and losses on the other 41 properties remain strictly off the books.