at one gulp

• 一口

at one gulp的用法和样例：

例句

1. He downed the medicine at one swallow.
   他一口便把药全吞下了。
2. Pike was puffing away at a cigarette nervously.
   派克紧张不安地一口接一口抽着烟卷。
3. He downed the vodka in one gulp.
   他将伏特加酒一饮而尽。
4. Don't forget to chug-a -lug at the water cooler!
   所以不要忘记了在饮水机旁一饮而尽。