| 单词 | on alert |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔ARMY〕The United States placed its forces in the region on alert. 美国让该地区的军队保持戒备状态。朗文写作活用〔alertness〕Soldiers and police have been put on alert.士兵和警方都已进入警戒状态。柯林斯高阶〔alert〕Nuclear-armed bombers were put on alert during the crisis.核武装轰炸机在危机期间负责警戒美国传统〔alert〕Soldiers and police have been put on alert.士兵和警察已处于戒备状态。外研社新世纪〔alert〕Troops in the vicinity were put on alert .附近地区的军队受命进入戒备状态。朗文当代〔alert〕We need to be on alert for any sudden changes.我们需要密切注意任何突发情况。韦氏高阶The outbreak of MERS put the whole nation on alert. MERS疫情爆发之后，全国都紧张了起来。译典通 |
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