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
Richard, these are terrific pictures. Richard
这些照片真棒。
Novelty is the great parent of pleasure.
新奇生乐趣。
She is going to set out from the French coast at five o'clock in the morning.
她打算早上5点钟从法国海岸出发。