to be at a loss; to think and think but get nowhere; to fail to come up with a good idea
to be at a loss how to continue; to become disheartened
to think something over and over; to rack one's brains; to be at a loss
to be at a loss; to think and think but get nowhere; to fail to come up with a good idea
to be at a loss how to continue; to become disheartened
to think something over and over; to rack one's brains; to be at a loss