Test signal
[电] 试验讯号
🧩 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
Friends, teachers....
朋友 老师……
We had a fabulous time at the garden party.
我们在游园会上玩得很开心。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。