英语词汇“空中警戒”的释义、用法及例句翻译-英汉例句词典

词汇	空中警戒
例句	To make extra certain, a police helicopter kept watch overhead.为确保万无一失，一架警用直升机一直在空中警戒。To make extra certain, a police helicopter kept watch from the skies.为确保万无一失，一架警用直升机一直在空中警戒。
随便看	filched File file file an action file a petition file a suit against file away file cabinet file compression filed file down file extension file folder file for file in file manager filename file name file off file out file past files file server file servers file-sharing

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