一口气的英文：one breath，in one breath。
1、one breath
读音：英［wʌn breθ］，美［wʌn breθ］。
释义：一口气；呼吸；起死回生；一息尚存。
例句：He reached the city of Wan in one breath and threw the ghost to the ground.
一口气跑到了宛市，把鬼摔在地下。
2、in one breath
读音：英［ɪn wʌn breθ］，美［ɪn wʌn breθ］。
释义：一口气。
例句：He reached the city of Wan in one breath and threw the ghost to the ground.
一口气跑到了宛市，把鬼摔在地下。
相关例句
1、He reached the city of Wan in one breath and threw the ghost to the ground.
一口气跑到了宛市，把鬼摔在地下。
2、He recited the whole poem in one breath.
他一口气背出了整篇诗。
3、Our scouts brushed aside in one breath all the mines laid by the enemy.
我们的侦察兵把敌人埋的地雷一下子全排除了。
4、He said his whole speech all in one breath.
他一口气就发表完自己的演讲。
5、Several students made the request in one breath.
好几个学生同时提出这个要求。
6、He said the whole message in one breath.
他一口气将所有的消息说完。