Selection signal
[计] 选择信号
🧩 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
Don't mention it. What would you like to drink?
别客气，想喝点什么？
Excuse me for a moment.
失陪一会儿。
Gradually the river grows wider, the banks recede,
然后河面渐渐地变宽，两岸后撤，