(1)ある望ましくない事象の発生を知らせる装置
(2)a device that signals the occurrence of some undesirable event
さらに詳しく
(1)名前と名字の間の名前
(2)a name between your first name and your surname
(1)異常に暑い天気の波
(2)a wave of unusually hot weather
