Alerting signal
[计] 报警信号
🧩 词语组成解析
[计] 报警
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
Dreadful weather, don't you think?
天气可真差劲，你说呢？
What are you doing?
你正在做什么？
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。