Visible signal
[计] 可见信号, 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
It's crowded in here.
这里太挤了。
He who stands alone has no power.
孤掌难鸣。
Oh. It's very nice. How far have you been in it?
嗬，太漂亮了。你开它走了多远？