名词
中文翻译：回声说话者
同义词：
['echo speaker', 'echo recorder']
例句：
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1.The echo talker was a popular device for recording and playing back sounds.
回声说话者是一种受欢迎的设备，用于录制和回放声音。
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2. The echo talker helped scientists to study the behavior of animals in the wild.
回声说话者帮助科学家研究野生动物在野外的行为。
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3. The echo talker was used to create realistic sound effects in movies and games.
回声说话者被用来在电影和游戏中创造逼真的声音效果。