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1·The police on duty tried to shoo away the crowd by using a loud-speaker.

在值班的警员试着把人群散去，于是他使用了扬声器。

2·She gave up talking as she saw bette was trying to listen to the speech that was being relayed through a loud-speaker tied to one of the trees.

系在一棵树上的扩音机里传过来人家的演讲，她看见蓓蒂要听就不说话了。

3·Explosion-proof flexible connecting pipes is used in explosion-proof telephone station, explosion-proof terminal, explosion-proof loud-speaker inlet or outlet to conduit and protect the cable.

防爆挠线连接管用于防爆电话站、防爆接线箱、防爆扬声器的输入，输出口到布线钢管之间的过渡连接，起到保护电缆的作用。

4·It's what allows us to pick out the words from just one speaker even when we're in a room full of other voices that are just as loud.

鸡尾酒会效应指的就是，我们可以从一屋子的杂音中分辨出某些言语，即使它们和周围的声音一样嘈杂。

5·They were sitting together at a restaurant, and loud music with a heavy beat poured out of a nearby speaker as they ate.

他们一起坐在餐厅里，吃饭时听到附近喇叭里传出轰轰的音乐并伴有重重的打击声响。

6·A 747 was halfway across the Atlantic when the captain got on the loud speaker.

一架747客机正在跨越大西洋时，喇叭里传来了机长的声音。

7·Loud back speaker and in phone call.

扬声器和大声回电话。

8·The good: The BlackBerry VM-605 features a loud speaker for clear calls.

好：黑莓船民- 605具有通话清晰响亮的扬声器。

9·The speaker paused to examine his notes, at which point a loud crash was heard.

讲演者停下来查阅他的笔记，就在这时，听到了砰的一声巨响。

10·He speaks into a loud speaker.

他对着麦克风讲话。

扩音机

1·She gave up talking as she saw bette was trying to listen to the speech that was being relayed through a loud-speaker tied to one of the trees.

系在一棵树上的扩音机里传过来人家的演讲，她看见蓓蒂要听就不说话了。