She made no attempt to hide her concern at the concept.

"I don't know what you mean," Midnight said, attempting to hide her concern.

She spoke with the darkness as an ally, hiding her deep concern.

And as Mamma was, too, though trying to hide her concern.

"Remember that," added Crucelle, not quite able to hide his concern.

I do not want to hide from you my concern that the current economic recession threatens the long-term strategy of driving forward research and development.

I cannot hide my concern about the scandalousness of these views.

Not even the calm yellow eyes could hide Data's concern.

"Nothing," she said, trying to hide her concern, "I need your help."

And just now, very concerned about something, although he hid his concern well.