Vision signal
[计] 视觉信号, 视频信号
🧩 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
Hello, operator.
喂， 接线生。
Look for a needle in a bundle (or bottle) of hay.
海底捞月。
I supposed him to be very clever but he was in fact a fool.
我以为他很聪明，其实他是个蠢货。