n. a stifling cloud of smokev. envelop completelyv. deprive of oxygen and prevent from breathingv. conceal or hide
vt. 使喘不过气, 使窒息, 闷熄, 忍住, 抑制, 覆盖vi. 窒息, 被抑制n. 浓烟, 窒息状态, 杂乱无章