柯林斯词典buzzer /ˈbʌzə/ (buzzers) 1. N-COUNT A buzzer is an electrical device that is used to make a buzzing sound, for example, to attract someone's attention. 电子蜂鸣器 She rang a buzzer at the information desk. 她按响了信息台上的一只蜂鸣器。 返回 buzzer剑桥词典an electronic device that makes a buzzing sound 蜂鸣器 I pressed the buzzer and after a while someone came to the door . 我按了蜂鸣器，一会儿就有人来开了门。 返回 buzzer