英语单词短语词组“on the alert”的中文翻译、释义及用法解析-英汉词典

单词	on the alert
释义	on the alert watchful注意；留神 *Drivers must be on the alert for traffic signals．汽车驾驶员必须注意交通信号。
随便看	grave injury grave injustice gravel gravel bar gravel beach gravel bottom graveled gravelled gravelly gravelly voice gravel parking gravel path gravel path gravel pit gravel-pit gravel quarry gravel road gravel road gravely grave marker grave mistake graven image graven-image grave problem grave responsibility