🧩 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
flag
[flæg]
n. 旗;旗帜;信号旗;菖蒲;
vt. 标示;
vi. 疲乏，变弱，热情衰减;
🗣️ 情景例句
What channel?
哪个频道？
Will you take that library book back for me?
你能帮我把书还回图书馆吗？
He was known to us all as Dickie and his eccentricity had become legendary long before he died.
大家都管他叫迪基。早在他去世前很久，他的古怪行为就成了传奇故事了。