31.   Those conditions are common west of the Continental Divide, where warm, moist air flows inland from the Pacific Ocean.

32.   Tropical air will flow toward the boundary from the Caribbean while warm, less humid air streams in from the continent.

33.   When I exhaled, the air just flowed out.

34.   When it does, love may flow out of us and into us as easily as air flows in and out of our lungs when we inhale and exhale.

35.   A scramjet engine only works when air flows through it at supersonic speeds.

36.   Along the route, the air flowed through valves on each side of the aircraft.

37.   Elsewhere, a few showers were possible during the night in Texas as moist air flows in from the Gulf of Mexico.

38.   It allowed more air to flow through the engine, increasing horsepower.

39.   They are alternately staggered in height, allowing air to flow freely through their clearances.

40.   Using specially treated gases, doctors can watch, for the first time, how air flows through the lungs.