loudspeaker [ˌlaʊdˈspi:kə(r)]

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单词级别

第5级

基本释义

n.扬声器，扩音器

英英释义

a piece of equipment that changes electrical signals into sounds , especially used in public places so that large numbers of people can hear someone speaking or music playing

参考例句

The loudspeaker's stopped working. 扩音器不响了。
There is a loudspeaker in a radio. 收音机里有个喇叭。

loudspeaker [ˌlaʊdˈspi:kə(r)]

单词级别

基本释义

英英释义

参考例句

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