For lack of a better model, it recommends keeping the linear one.

He recommended keeping the diary for at least a week.

This seems like a weakness, but most medical authorities recommend keeping weight loss at 1-2 pounds a week.

A 2006 government report recommended keeping some plants open until 2014.

Many experts recommend keeping a diary for at least three weeks.

Instead, your doctor will probably recommend keeping a close eye on your condition.

"I wouldn't recommend keeping the emergency bulkheads open too long," she said.

"I don't recommend keeping animals like these as pets," she said.

"We recommend keeping your eyes on this number for the next few months, rather than news wire headlines," he told clients.

This study also recommended keeping music under a volume of 21 decibels.