Staircase signal
[电] 梯形讯号
🧩 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
Tell me all about your interests, your hobbies ...
告诉我你所有的兴趣和爱好。
I would like to enlarge this film.
我要放大这底片。
Will you come and join us for dinner on Sunday?
星期天来和我们共进晚餐好吗？