| 单词 | 警报信号 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔alert〕They sounded an alert when enemy planes were approaching the city.敌机接近城市时，他们发出了警报信号。韦氏高阶〔light〕A warning signal lit up on the dashboard.警报信号在汽车的仪表板上亮了起来。麦克米伦高阶〔react〕The firefighters reacted quickly when they heard the alarm.消防队员听到警报信号后迅速做出反应。韦氏高阶 |
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