Radio signal
[电] 无线电讯号
🧩 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
However, through my experience in business at home and abroad.
但从事国内外的商业的经历中。
The spacecraft is scheduled to arrive at Saturn next year.
太空船预定明年到达土星。
What's up?
有什么事吗？