1.警报,急报
2.警报器,警铃
3.惊慌,恐慌
1.吓,惊动;使放心不下
2.向...告急,向...报警,警戒
1.a piece of electrical equipment that warns you of danger, especially by making a loud noise
2.an alarm clock
3.fear or worry that something unpleasant or dangerous might happen
1.to make someone frightened or worried that something unpleasant or dangerous might happen
2.to attach an alarm to something