名詞
一啲唔係講出嚟,而又傳遞到指示、訊息嘅行動;可以係手勢、動作、燈光,甚至電流,唔一定係人睇得明嘅,有時係畀特定嘅設備或者儀器用(量詞:個) signal; something that conveys a message without speech including gestures, movements, lights, or even electric current and can extend beyond a specific device or instrument
After nightfall in Kaohsiung, power supply is yet to be restored in many administrative districts. Even the mobile phone signal is affected, which is miserable.