Optical signal
[计] 光信号
🧩 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
Now I want to ask you a few questions, if you don't mind.
如果不介意的话，现在我想问你几个问题。
The girl I love is much younger than me.
我爱上的女孩比我小多了。
while the rest are constantly woken or kept awake by their trumpeting partners.
而其余则经常被与她们同睡、像吹号似地打着呼噜的男人吵醒或弄得睡不着。