复数： loudspeakers

It is that you can use a loudspeaker to talk to potential targets before deciding whether to attack them .

那就是在决定是否攻击一个目标之前，你可以用扩音器对可能的目标进行喊话。

Not so the acts of vietnam 's red demons , with their nauseating loudspeaker jingles about happiness and light .

不像越南红色恶魔们的行径，这里总是能听到人们拿着令人恶心的扩音器到处宣传幸福和光明。

At the office , I find myself increasingly irritated by the loudspeaker that bellows a pre-recorded and irrelevant security announcement whenever I lock my bicycle to the bike racks .

在办公室，我发现我越来越受不了那个扩音器，每次我把自行车锁到自行车架上时，这个扩音器就会发出预先录制好的、无关痛痒的安全告示。

The associated press news agency reported that an official who tried to read the statement over a loudspeaker to protesters was drowned out by calls for the mayor to step down .

据美联社（associatedpress）记者报道，一名官员试图通过扩音器宣读声明，但声音很快淹没于要求市长下台的呼喊声中。

That will send word to local municipalities , which will alert residents by radio or loudspeaker .

该系统将向地方各市发出消息，各市通过电台和喇叭向居民发出预警。