loudspeaker 核心詞議：
n. 喇叭，揚聲器；擴音器
loudspeaker 基本解釋
速記方法
速記技巧
詞源詞根法
比喻用法。loud響亮的+speak說話+-er名詞詞尾
知識擴展
loudspeaker 變化形式
復數： loudspeakers
中文詞源：
loudspeaker 擴音器，喇叭
比喻用法。
loudspeaker
精選例句
1、 Their names were called over the loudspeaker.
喇叭里叫著他們的名字。
2、 I distinctly heard the loudspeaker calling passengers for the Washington-Miami flight.
我清楚地聽到擴音器在呼叫由華盛頓飛往邁阿密的旅客。
常見考點例句：
- It is that you can use a loudspeaker to talk to potential targets before deciding whether to attack them .
- 那就是在決定是否攻擊一個目標之前，你可以用擴音器對可能的目標進行喊話。
- Not so the acts of vietnam 's red demons , with their nauseating loudspeaker jingles about happiness and light .
- 不像越南紅色惡魔們的行徑，這里總是能聽到人們拿著令人惡心的擴音器到處宣傳幸福和光明。
- 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 .
- 在辦公室，我發現我越來越受不了那個擴音器，每次我把自行車鎖到自行車架上時，這個擴音器就會發出預先錄制好的、無關痛癢的安全告示。
- 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 .
- 據美聯社（associatedpress）記者報道，一名官員試圖通過擴音器宣讀聲明，但聲音很快淹沒于要求市長下臺的呼喊聲中。
- That will send word to local municipalities , which will alert residents by radio or loudspeaker .
- 該系統將向地方各市發出消息，各市通過電臺和喇叭向居民發出預警。