verb · to produce a sound with an audible release of breath in linguistics

发这个辅音时，声门需要打开以吐气。

verb · to breathe out

深呼吸，然后慢慢地向外吐气。

verb · to let out pent-up feelings or suppressed emotions

听了他的解释，我心里这口闷气总算吐气出来了。