一口气

一口氣
yīkǒuqì
  1. one breath
  2. in one breath
  3. at a stretch

CEDICT

Entry Composition

1 一口 yīkǒu
  1. readily
  2. flatly (deny, admit and so on)
  3. a mouthful
  4. a bite
2 气 qì
  1. gas; air
  2. smell
  3. weather
  4. to make angry; to annoy; to get angry
  5. vital energy; qi