嗡嗡作声的东西,蜂音器,信号手
Buzzer \Buzz"er\ (b[u^]z"[~e]r), n. One who, or that which, buzzes; a whisperer; a talebearer. And wants not buzzers to infect his ear With pestilent speeches of his father's death. --Shak.
buzzer n 1: a push button at an outer door that gives a ringing or buzzing signal when pushed [syn: {doorbell}, {bell}] 2: a signaling device that makes a buzzing sound