Reference signal
[计] 参考信号, 引作信号, 基准信号
🧩 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
Yes. The number, please,of the Staten Island Ferry lost-and-found office.
我想问一下Staten岛渡轮失物招领处的电话号码。
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
decided to take some presents to a children's hospital.
盖茨决定送些礼物给儿童医院。