My instinct would be to keep them aboard the ship.
The more likely explanation was that it was the easiest way to keep order aboard the ship.
Which is why I'm going against my f rst inclination to keep you aboard ship and send just a security team.
"I take it that's a polite way of keeping me aboard the Enterprise?"
If we could just keep him aboard ship all the time, he'd do fine.
And I can only assume you do not keep me aboard this vessel simply for my dazzling personality.
Sighing, he leaned back, too, but ignored the view and kept a wary watch on the three men aboard the boat.
Purchase some food, and keep everyone aboard the Dido.
I kept it aboard the yacht for personal protection.
What sort of radio schedule were you keeping aboard this vessel?