sighing

n.

an utterance made by exhaling audibly

同义词：suspiration

a sound like a person sighing

"she heard the sigh of the wind in the trees"

SIGHING RESPIRATION AS A SYMPTOM
Hyperventilation and sighing.
Sighing for a Soldier: Jane Austen and Military Pride and Prejudice
Sighing in newborn human infants: role of inflation-augmenting reflex
The peptidergic control circuit for sighing
THE SYMPTOM OF SIGHING IN CARDIOVASCULAR DIAGNOSIS. WITH SPIROGRAPHIC OBSERVATIONS.
Respiratory variability and sighing: A psychophysiological reset model
Pattern of lung volumes in patients with sighing breathing.
Tidal volume of respiration and "sighing"as indicators of breathing irregularities in panic disorder patients.
Disproportionate breathlessness associated with deep sighing breathing in a patient presenting with difficult-to-treat asthma.