记忆方法
将“loudspeaker”分解为两个部分：“loud”和“speaker”。记住“loud”意味着声音大，而“speaker”指的是说话者或扩音器。将这两个概念结合起来，形成“大声说话者”或“大声扩音器”的图像，这样就能记住“loudspeaker”这个词表示的是一种放大声音的设备。
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中文词源
loudspeaker 扩音器，喇叭
比喻用法。
英语词源
- loudspeaker (n.)
- also loud-speaker, 1884, from loud (adj.) + speaker.
权威例句
- 1. I distinctly heard the loudspeaker calling passengers for the Turin-Amsterdam flight.
- 我清楚地听到扩音器里在请都灵至阿姆斯特丹航班的旅客登机。
- 2. Announcements were made over the loudspeaker system.
- 通知通过喇叭广播。
- 3. Their names were called over the loudspeaker .
- 喇叭里叫着他们的名字。
- 4. The loudspeaker announced each airplane as it landed at the airport.
- 每架飞机在机场一着陆,扩音器就发出通告.
- 5. The loudspeaker's stopped working.
- 扩音器不响了.