alertKK [əˋlɝt] /əˈlɝt/形容詞1警覺的、機警的、留意的Drivers must stay alert on long stretches of highway.駕駛人在長途高速公路上必須保持警覺。2反應靈敏的、機靈的Despite her age, she remains mentally alert and curious.儘管年紀大了，她思緒依然靈敏、充滿好奇心。3意識到的、警惕的常接 toParents should be alert to sudden changes in behavior.家長應留意孩子行為上的突然轉變。名詞1警報、警示The city issued a flood alert late last night.市政府昨天深夜發布了洪水警報。2警戒狀態、戒備常用於 on alertSecurity teams were put on high alert during the summit.高峰會期間，維安團隊進入高度戒備狀態。顯示全部 8 個義項名詞3提示、通知I set up an alert for any price drop on that laptop.我設了通知，那台筆電一降價就會提醒我。動詞1向…示警、通報A neighbor alerted the police to the smell of gas.一位鄰居向警方通報有瓦斯味。2使警覺、提醒The report alerted the public to the risks of the new drug.這份報告讓民眾警覺到這款新藥的風險。