一口气

one breath / in one breath / at a stretch

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

readily / flatly (deny, admit and so on) / a mouthful / a bite

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

tone of voice / the way one speaks / manner of expression / tone

gas / air / smell / weather / to make angry / to annoy / to get angry / vital energy / qi

gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi

to heave a sigh of relief

to heave a sigh of relief

to gasp (in surprise, dismay, fright etc)

erhua variant of 一口氣|一口气[yi1 kou3 qi4]