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
If you go camping, at night you'll hear all the nocturnal animals.
如果你去野营，晚上可以听到动物的夜歌。
His leg is wounded, Does it hurt?
他的腿受伤了，疼不疼？
The story of a poor family that acquired fame and fortune overnight, dramatically illustrates the power of the press.
下面这户穷人一夜之间出名发财的故事戏剧性地说明了新闻报道威力。