| 词汇 | alert |
| 释义 | adjectiveverbnoun Suddenly he found himself awake and fully alert. 突然他发觉自己醒了过来，而且高度警觉。 Two alert scientists spotted the mistake. 两个警觉的科学家发现了这个错误。 Try to stay alert while driving at night. an alert mind mentally alert We must be alert to the possibility of danger. 我们必须认识到危险发生的可能性。 She was alert to the slightest sound. He was as mentally alert as a man half his age. The machine should help to keep the pilot alert. There was a noise outside and he was suddenly alert. Neighbours quickly alerted the emergency services. 邻居很快向应急服务机构报了警。 Alerted by a noise downstairs, he sat up and turned on the light. 楼下的响声使他警觉，他坐起来打开灯。 They had been alerted to the possibility of further price rises. 他们已意识到价格可能继续上涨。 Police are warning the public to be on the alert for suspicious packages. 警方警告公众要警惕可疑包裹。 More than 5 000 troops have been placed on (full) alert.5 000 多名士兵已处于（全面）戒备状态。 a bomb/fire alert炸弹／火警警报 A nationwide alert went out for three escaped prisoners. A security alert was issued after four men escaped from the prison. His sudden disappearance triggered a red alert among his friends. Receive regular email alerts about breaking news. The alert was called off when it was found that the bomb was not live. The army was yesterday placed on a state of alert in case of more riots. The country has put its troops on high alert. The security forces are now on full alert. They rang the bells to sound the alert. They rang the church bells to sound the alert and the villagers then fled. Thousands of police were put on full alert at all main roads leading to the city. You should always be on the alert for anyone who looks suspicious. A bomb alert forced staff to evacuate the building for several hours. A flood alert has been issued in the city after last night’s heavy rain. Following the bomb blast, local hospitals have been put on red alert. 炸弹爆炸之后，当地医院一直处于戒备状态。 More than 5 000 troops have been placed on full alert. |
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