蜂鸣器突然相应地发出了一声响亮的长鸣。The buzzer suddenly responded in a long blast of sound.蜂鸣器在8点钟时响了.The buzzer went off at eight o'clock.你想讲话的时候就按蜂鸣器.Press the buzzer when you want to talk....
There was a raid on a bank by armed mobs yesterday.昨天发生了一起武装暴徒抢劫银行的事件.The act had a specific intent, to protect freed slaves from white mobs.这项法案有明确的目的，即保护被解放的奴隶免受白人暴民的伤害。Rowdy mobs gathered in the leading thoroughfares....
When does your driving licence expire?你的驾照什么时候到期？His term of office as president will expire next year.他的总统任期明年将届满.The flowers expire fragrance.鲜花散发芳香....