As Marissa brings the bar out, she takes big air in before the descent. She keeps the chest high, keeps that air in, presses and holds her air until she's back at the top of the lift. If it's a lighter set and you can move the bar pretty quickly, it would be fine for you to do multiple reps within the same breath, but what we definitely don't want is Marissa to take a big air in and then either breathe out with the bar on her chest or breathe out as she presses.