B-y signal
[电] B-Y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
What room are you in, sir?
先生，您住几号房？
To knit the sweater
织毛衣
Though they are running out of food and drink, the men are cheerful and confident that they will soon get out.
虽然他们的食物和饮料都快消耗尽了，但这些人的心情很好，坚信他们很快就会出去。