The act of gulping.
吞咽吞咽的行为

She crawled onto the river bank and lay there gulping in air.
她爬上河岸, 躺在那里喘著大气。

Gulping. Bill sank into a chair.
比尔大吸了一口气, 一下跌坐到椅子里。

the day was warm and sunny, yet with a thin cotton twist of cloud sewing together the blue gaps of sky, and a quick wind gulping down its own breath and the sweetness of the gorse.
日头温暖, 阳光灿烂, 棉絮似的薄云缝补着天空中的蓝色块。

Every fighter was either fighting or gulping fuel for another go.
战斗机不是在作战就是在赶紧加油准备再干。

And you'll even feel excited gulping down a glass.
你甚至可以感觉到激动下一杯。