Visual signal
[电] 视觉讯号
🧩 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
I don't think so.
我不这么想。
There were times of disappointment, anger, and humiliation, and there were also times of joy.
生活中有失望、生气和屈辱的时候。
A woman saw it happen when she was walking past.
一位妇女走过的时候，看到我的钢笔掉了。