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。
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。
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。
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。
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。
He speaks into a loud speaker.
他对着麦克风讲话。
When we require that a speaker should be able to play very loud we do not use large woofers, but several small ones instead.
当我们要求喇叭可以高音量播放时，我们不需使用大尺寸的低音喇叭，而是用几个小巧的来代替。
When we require that a speaker should be able to play very loud we do not use large woofers, but several small ones instead.
当我们要求喇叭可以高音量播放时，我们不需使用大尺寸的低音喇叭，而是用几个小巧的来代替。
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