kēng​chi

to puff and blow

吭哧 kēng​chi
to puff and blow
To breathe heavily or pant due to physical exertion.
to hem and haw
To speak hesitatingly or stammer, often because of difficulty or reluctance to speak clearly.
to toil
To do something slowly and with great effort, such as laboring over a difficult task.
to whimper
To make low, feeble sounds expressive of fear or pain; to cry softly

Frequency

Movie subtitles
0.060 per million appears in 0% of films
Written text
0.135 per million

Sources