Signal fire
n. 烽火，烽火信号
🧩 词语组成解析
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
fire
['faiə]
n. 火，燃烧物;火灾;射击，发射;热情;
vt.& vi. 开火，射击;燃烧;引爆炸药;充满热情;
vt. <口>解雇;射（箭）;激励;射出（子弹）;
🗣️ 情景例句
See you in front of the museum at five o'clock.
五点钟博物馆前再见。
Is it illegal to tap a telephone for the purpose of secretly recording a conversation?
为了秘密地录下谈话，在电话内装置窃听器是违法的行为吗？
Ken gave up smoking two years ago. He'd been smoking for thirty years.
两年前肯戒了烟，之前他抽了三十年烟。