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
Well, we all go through this at some stage of life, some of us buy a wig and some of us just stay bald.
我们全部会在生命中的某个时期经历脱发这种事，有些人会去买假发，有些人则会留个光头。
I bought 7 boxes of matches.
我买了七盒火柴。
How many would you like to order?
您要订多少？