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
The advanced class starts at ten o'clock.
高级健身课十点钟开始。
When two ride on one horse, one must sit behind.
两人共骑一匹马，总有一个背后跨。
It's nothing. Don't worry. You'll be OK, said Li Lei. But you'd better not talk.
“这算不了什么。不要着急。你会好的”，李垒说，“但你最好不要说话”。