Emergency signal
[计] 紧急信号
🧩 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
🗣️ 情景例句
Thank you.
谢谢 。
I'm Donald. We met the last time you visited Taiwan.
我是唐纳德，上次你来台湾时我们见过面。
One night, the gaoler decided to play a joke on his colleague to find out if, after so many performances, he had managed to learn the contents of the letter by heart.
一天晚上，狱卒决定与他的同事开一个玩笑，看看他反复演出这么多场之后，是否已将信的内容记熟了。