Signalling
[计] 信号传输法
✅ 同义词
🗣️ 情景例句
After sending investigators to the scene we can now confirm that it was the result of an accidental fire.
在派出调查人员到现场后，我们现在可以确定事故是由意外失火导致的。
The worker is pounding steel pipes to mend the leakage of water.
管道工为了修缮漏水而敲打着下水道的铁管。
What's wrong?
怎么回事？