gulp
/gʌlp; ɡʌlp/ v
1 [Tn, Tn.p] ~ sth (down) swallow (food or drink) quickly or greedily 快速或贪婪地吞咽（食物或饮料）
gulp one's food 狼吞虎咽地吃东西
gulp down a cup of tea 一口气喝下一杯茶.
2 [I] make a swallowing motion 吞咽; 咽
She gulped nervously, as if the question bothered her. 她紧张地咽了一下, 似乎那问题把她难住了.
3 [Tn, Tn.p] ~ sth (in) breathe (air) deeply, (as if) to recover from partial suffocation 深呼吸; 喘大气; 喘长气
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.
4 (phr v) gulp sth back prevent (the expression of emotion) by swallowing （以吞咽动作）抑制（感情的流露）; 咽下; 咽回
She gulped back her tears and tried to smile. 她咽下眼泪, 强作笑容. gulp, n
1 act of gulping 吞咽: swallow/sob with loud gulps 大声吞咽[抽泣].
2 mouthful, esp of sth liquid 一大口（尤指液体）
a gulp of cold milk 一大口冷牛奶.
3 (idm 习语) at a `gulp with one gulp 一口气吞下
empty a glass at a gulp 一口气喝完一杯.