noun下载🔗分享电灯开关，照明开关 A switch, usually mounted on a wall in a building, used to turn the light on or off.例子:"I flipped the light switch as I walked into the dark room. "我走进黑房间，顺手按了一下电灯开关。utilitybuildingelectricdevice与AI对话词汇游戏阅读练习
