Emergeney signalling
[化] 事故讯号装置
🧩 词语组成解析
[计] 信号传输法
🗣️ 情景例句
She wants to know
她想知道
Such data is confidential.
这样的资料为机密资料。
It's time you went to bed.
你早就该睡觉了。