一口气 yīkǒuqì HSK5 at a stretch Origin Definitions Defs Strokes Stroke Words Sentences Sents 松一口气 sōngyīkǒuqì relax to heave a sigh of relief倒抽一口气 dàochōuyīkǒuqì gasp to gasp (in surprise, dismay, fright etc)舒一口气 shūyīkǒuqì sigh of relief to heave a sigh of relief