signals
名词 signal:
any communication that encodes a message
any incitement to action
同义词:signal
an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
同义词:signal
动词 signal:
communicate silently and non-verbally by signals or signs
同义词:sign, signal, signalize, signalise
be a signal for or a symptom of