信号用英语造句 2026-03-09 0 信号响时，人人脱帽致敬。 Everyone uncovered when the signal sounded. 红灯常常是危险的信号。 A red lamp is often a danger signal. 没有视频信号。 There is no video signal. 灯塔每一分钟发出两次信号。 The lighthouse flashes singals twice a minute... 阅读更多
