Smoke signal
n. 烟幕信号, 发烟信号
🧩 词语组成解析
smoke
[smok]
n. 烟;吸烟;
vi. 冒烟;抽烟;快速;
vt. 用烟熏制;吸（烟），抽;
signal
['sɪgnl]
n. 信号，暗号;预兆，征象;动机;导火线;
vt. 向…发信号;用动作（手势）示意;以信号告知;
vi. 发信号;
adj. 显著的，优越的;暗号的，作信号用的;
sign记号，信号+al表名词 → 信号
🗣️ 情景例句
How long has he held office?
他已任职多长时间了？
Fear is often greater than the danger.
杞人忧天。
Sure enough, a policeman arrived on the scene and politely asked the workmen to go away.
果然，警察来了，不礼貌地请工人离开此地；