noun🔗Share警报，警戒。 An alarm."The fire alarm was the alert that everyone heard. "火警警报就是大家听到的那个警报声。soundsignaldevicetechnologycommunicationChat with AIVocabulary GamePractice Reading
noun🔗Share警报，警告。 A notification of higher importance than an advisory."The school issued an alert about a possible security threat, in contrast to the advisory about the delayed lunch. "学校针对可能存在的安全威胁发布了警报，这和午餐推迟的通知相比，重要性要高得多。communicationsignaltechnologyChat with AIVocabulary GamePractice Reading
noun🔗Share警戒，警惕。 A state of readiness for potential combat."an airborne alert; ground alert"空中警戒；地面警戒militarywarChat with AIVocabulary GamePractice Reading
adjective🔗Share警惕的，警觉的，留神的 Attentive; awake; on guard."The teacher was alert during the class discussion, making sure everyone understood the concepts. "上课讨论的时候，老师很警觉，注意确保每个人都理解了概念。mindcharacterattitudeactionChat with AIVocabulary GamePractice Reading
adjective🔗Share机警，敏捷。 Brisk; nimble; moving with celerity."The alert student quickly answered the difficult math question. "那个机敏的学生很快就回答出了那道难解的数学题。abilityqualityconditionChat with AIVocabulary GamePractice Reading
verb🔗Share警告，提醒。 To give warning to."The teacher alerted the class that the fire drill would be at 10:00. "老师提醒全班同学，消防演习将在十点举行。communicationsignalactionpolicemilitaryChat with AIVocabulary GamePractice Reading
