Bimetallic signal device
[化] 双金属讯号装置
🧩 词语组成解析
a. 双金属的, (金银)复本位制的
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
I know.
我知道。
Every pleasure has a pain.
乐中必有苦。
One day, he walked into an expensive shop after having been caught in a particularly heavy shower.
一天，他遇上一场瓢泼大雨，淋得透湿。