Signalling apparatus
[机] 信号装置
🧩 词语组成解析
[计] 信号传输法
🗣️ 情景例句
The airport rescheduled a flight.
机场改变了航班时间。
No wonder you're so experienced.
怪不得你这么有经验。
Are there any trees in the picture?
画里面有树吗？