/tʃəʊk; tʃok/
v
1 [I, Ipr] ~ (on sth) be unable to breathe because one's windpipe is blocked by sth 窒息
*She choked (to death) on a fish bone. 鱼刺把她卡住而窒息（致死）.
2 [Tn] cause (sb) to stop breathing by squeezing or blocking the windpipe; (of smoke, etc) make (sb) unable to breathe easily （掐住或阻塞气管）使（某人）停止呼吸; （指烟等）使（某人）难以呼吸; 呛
*choke the life out of sb 扼死某人
* The fumes almost choked me. 烟雾几乎把我呛死.
3 [I, Ipr, Tn] ~ (with sth) (cause sb to) become speechless （使某人）说不出话来
*She was choking with emotion. 她激动得说不出话来.
* Anger choked his words. 他气得说不出话来.
4 [Tn, Tn.pr esp passive 尤用于被动语态, Tn.p esp passive 尤用于被动语态] ~ sth (up) (with sth) block or fill (a passage, space, etc); clog or smother sth 阻塞, 充满（通道、空间等）; 填满某物; 窒息某物
*The drains are choked (up) with dead leaves. 下水道被枯叶堵住.
* The garden is choked with weeds. 花园杂草丛生.
5 (phr v) choke sth back restrain or suppress sth 克制、抑制、忍住或压制某事物
*choke back one's tears, anger, indignation 忍住眼泪、愤怒、义愤. choke sth down swallow sth with difficulty 困难地咽下某物. choke sb off (infml 口)
(a) interrupt sb rudely or abruptly 粗鲁地或突然阻止某人.
(b) reprimand sb severely (for doing sth) 严厉申斥某人（之所为）.

n
1 act or sound of choking 窒息; 窒息时发出的声音.
2 (knob which operates the) valve controlling the flow of air into a petrol engine 阻风门（开关）（控制进入汽油机空气量的阀门）
*Won't your car start? Try giving it a bit more choke, ie letting more air into the engine by pulling out the choke. 你的汽车不能启动啦? 把阻风门开大一点儿（外拉阻风门钮让更多的空气进入发动机）. =>illus at App
1 见附录1之插图, page xii.