名词
中文翻译：长回音
同义词：
['echo', 'reverberation']
例句：
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1.The sound of the waves hitting the shore has a long echo in the distance.
海浪拍打岸边的声音在远处产生了长长的回声。
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2.The music played on the radio had a long echo in the room.
收音机里播放的音乐在房间里产生了长长的回声。
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3. The wind blew through the trees, creating a long echo in the valley.
风吹过树林，在山谷中产生了长长的回声。