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单词	air alert
释义	air alert noun 1 : the period during which military and civilian agencies are required to be in readiness for an enemy air attack also : the warning signal that begins such a period 2 : combat or standby status of the aircraft, aircrew, and ground communications system that may have to repel the enemy air attack Word History First Known Use 1927, in the meaning defined at sense 1
随便看	eo ipso eo nomine Eoacanthocephala eoan Eoanthropus eobionts Eocarboniferous Eocene eocenes eodiscid Eodiscus EOE eohippus eohippuses EOHP Eola weed eolation eolian eolianer eolianest eolianite eolianner eoliannest eolians eolic

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。